package org.apache.lucene.index;
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import java.io.File;
import java.io.IOException;
import java.io.PrintStream;
import java.text.NumberFormat;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import org.apache.lucene.codecs.BlockTreeTermsReader;
import org.apache.lucene.codecs.Codec;
import org.apache.lucene.codecs.PostingsFormat; // javadocs
import org.apache.lucene.codecs.lucene3x.Lucene3xSegmentInfoFormat;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.FieldType; // for javadocs
import org.apache.lucene.index.DocValues.SortedSource;
import org.apache.lucene.index.DocValues.Source;
import org.apache.lucene.index.FieldInfo.IndexOptions;
import org.apache.lucene.search.DocIdSetIterator;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.FSDirectory;
import org.apache.lucene.store.IOContext;
import org.apache.lucene.store.IndexInput;
import org.apache.lucene.util.Bits;
import org.apache.lucene.util.BytesRef;
import org.apache.lucene.util.CommandLineUtil;
import org.apache.lucene.util.FixedBitSet;
import org.apache.lucene.util.StringHelper;
/**
* Basic tool and API to check the health of an index and
* write a new segments file that removes reference to
* problematic segments.
*
* <p>As this tool checks every byte in the index, on a large
* index it can take quite a long time to run.
*
* @lucene.experimental Please make a complete backup of your
* index before using this to fix your index!
*/
public class CheckIndex {
private PrintStream infoStream;
private Directory dir;
/**
* Returned from {@link #checkIndex()} detailing the health and status of the index.
*
* @lucene.experimental
**/
public static class Status {
Status() {
}
/** True if no problems were found with the index. */
public boolean clean;
/** True if we were unable to locate and load the segments_N file. */
public boolean missingSegments;
/** True if we were unable to open the segments_N file. */
public boolean cantOpenSegments;
/** True if we were unable to read the version number from segments_N file. */
public boolean missingSegmentVersion;
/** Name of latest segments_N file in the index. */
public String segmentsFileName;
/** Number of segments in the index. */
public int numSegments;
/** Empty unless you passed specific segments list to check as optional 3rd argument.
* @see CheckIndex#checkIndex(List) */
public List<String> segmentsChecked = new ArrayList<String>();
/** True if the index was created with a newer version of Lucene than the CheckIndex tool. */
public boolean toolOutOfDate;
/** List of {@link SegmentInfoStatus} instances, detailing status of each segment. */
public List<SegmentInfoStatus> segmentInfos = new ArrayList<SegmentInfoStatus>();
/** Directory index is in. */
public Directory dir;
/**
* SegmentInfos instance containing only segments that
* had no problems (this is used with the {@link CheckIndex#fixIndex}
* method to repair the index.
*/
SegmentInfos newSegments;
/** How many documents will be lost to bad segments. */
public int totLoseDocCount;
/** How many bad segments were found. */
public int numBadSegments;
/** True if we checked only specific segments ({@link
* #checkIndex(List)}) was called with non-null
* argument). */
public boolean partial;
/** The greatest segment name. */
public int maxSegmentName;
/** Whether the SegmentInfos.counter is greater than any of the segments' names. */
public boolean validCounter;
/** Holds the userData of the last commit in the index */
public Map<String, String> userData;
/** Holds the status of each segment in the index.
* See {@link #segmentInfos}.
*
* @lucene.experimental
*/
public static class SegmentInfoStatus {
SegmentInfoStatus() {
}
/** Name of the segment. */
public String name;
/** Codec used to read this segment. */
public Codec codec;
/** Document count (does not take deletions into account). */
public int docCount;
/** True if segment is compound file format. */
public boolean compound;
/** Number of files referenced by this segment. */
public int numFiles;
/** Net size (MB) of the files referenced by this
* segment. */
public double sizeMB;
/** Doc store offset, if this segment shares the doc
* store files (stored fields and term vectors) with
* other segments. This is -1 if it does not share. */
public int docStoreOffset = -1;
/** String of the shared doc store segment, or null if
* this segment does not share the doc store files. */
public String docStoreSegment;
/** True if the shared doc store files are compound file
* format. */
public boolean docStoreCompoundFile;
/** True if this segment has pending deletions. */
public boolean hasDeletions;
/** Current deletions generation. */
public long deletionsGen;
/** Number of deleted documents. */
public int numDeleted;
/** True if we were able to open a SegmentReader on this
* segment. */
public boolean openReaderPassed;
/** Number of fields in this segment. */
int numFields;
/** Map that includes certain
* debugging details that IndexWriter records into
* each segment it creates */
public Map<String,String> diagnostics;
/** Status for testing of field norms (null if field norms could not be tested). */
public FieldNormStatus fieldNormStatus;
/** Status for testing of indexed terms (null if indexed terms could not be tested). */
public TermIndexStatus termIndexStatus;
/** Status for testing of stored fields (null if stored fields could not be tested). */
public StoredFieldStatus storedFieldStatus;
/** Status for testing of term vectors (null if term vectors could not be tested). */
public TermVectorStatus termVectorStatus;
/** Status for testing of DocValues (null if DocValues could not be tested). */
public DocValuesStatus docValuesStatus;
}
/**
* Status from testing field norms.
*/
public static final class FieldNormStatus {
private FieldNormStatus() {
}
/** Number of fields successfully tested */
public long totFields = 0L;
/** Exception thrown during term index test (null on success) */
public Throwable error = null;
}
/**
* Status from testing term index.
*/
public static final class TermIndexStatus {
TermIndexStatus() {
}
/** Total term count */
public long termCount = 0L;
/** Total frequency across all terms. */
public long totFreq = 0L;
/** Total number of positions. */
public long totPos = 0L;
/** Exception thrown during term index test (null on success) */
public Throwable error = null;
/** Holds details of block allocations in the block
* tree terms dictionary (this is only set if the
* {@link PostingsFormat} for this segment uses block
* tree. */
public Map<String,BlockTreeTermsReader.Stats> blockTreeStats = null;
}
/**
* Status from testing stored fields.
*/
public static final class StoredFieldStatus {
StoredFieldStatus() {
}
/** Number of documents tested. */
public int docCount = 0;
/** Total number of stored fields tested. */
public long totFields = 0;
/** Exception thrown during stored fields test (null on success) */
public Throwable error = null;
}
/**
* Status from testing stored fields.
*/
public static final class TermVectorStatus {
TermVectorStatus() {
}
/** Number of documents tested. */
public int docCount = 0;
/** Total number of term vectors tested. */
public long totVectors = 0;
/** Exception thrown during term vector test (null on success) */
public Throwable error = null;
}
/**
* Status from testing DocValues
*/
public static final class DocValuesStatus {
DocValuesStatus() {
}
/** Number of documents tested. */
public int docCount;
/** Total number of docValues tested. */
public long totalValueFields;
/** Exception thrown during doc values test (null on success) */
public Throwable error = null;
}
}
/** Create a new CheckIndex on the directory. */
public CheckIndex(Directory dir) {
this.dir = dir;
infoStream = null;
}
private boolean crossCheckTermVectors;
/** If true, term vectors are compared against postings to
* make sure they are the same. This will likely
* drastically increase time it takes to run CheckIndex! */
public void setCrossCheckTermVectors(boolean v) {
crossCheckTermVectors = v;
}
/** See {@link #setCrossCheckTermVectors}. */
public boolean getCrossCheckTermVectors() {
return crossCheckTermVectors;
}
private boolean verbose;
/** Set infoStream where messages should go. If null, no
* messages are printed. If verbose is true then more
* details are printed. */
public void setInfoStream(PrintStream out, boolean verbose) {
infoStream = out;
this.verbose = verbose;
}
/** Set infoStream where messages should go. See {@link #setInfoStream(PrintStream,boolean)}. */
public void setInfoStream(PrintStream out) {
setInfoStream(out, false);
}
private void msg(String msg) {
if (infoStream != null)
infoStream.println(msg);
}
/** Returns a {@link Status} instance detailing
* the state of the index.
*
* <p>As this method checks every byte in the index, on a large
* index it can take quite a long time to run.
*
* <p><b>WARNING</b>: make sure
* you only call this when the index is not opened by any
* writer. */
public Status checkIndex() throws IOException {
return checkIndex(null);
}
/** Returns a {@link Status} instance detailing
* the state of the index.
*
* @param onlySegments list of specific segment names to check
*
* <p>As this method checks every byte in the specified
* segments, on a large index it can take quite a long
* time to run.
*
* <p><b>WARNING</b>: make sure
* you only call this when the index is not opened by any
* writer. */
public Status checkIndex(List<String> onlySegments) throws IOException {
NumberFormat nf = NumberFormat.getInstance(Locale.ROOT);
SegmentInfos sis = new SegmentInfos();
Status result = new Status();
result.dir = dir;
try {
sis.read(dir);
} catch (Throwable t) {
msg("ERROR: could not read any segments file in directory");
result.missingSegments = true;
if (infoStream != null)
t.printStackTrace(infoStream);
return result;
}
// find the oldest and newest segment versions
String oldest = Integer.toString(Integer.MAX_VALUE), newest = Integer.toString(Integer.MIN_VALUE);
String oldSegs = null;
boolean foundNonNullVersion = false;
Comparator<String> versionComparator = StringHelper.getVersionComparator();
for (SegmentInfoPerCommit si : sis) {
String version = si.info.getVersion();
if (version == null) {
// pre-3.1 segment
oldSegs = "pre-3.1";
} else {
foundNonNullVersion = true;
if (versionComparator.compare(version, oldest) < 0) {
oldest = version;
}
if (versionComparator.compare(version, newest) > 0) {
newest = version;
}
}
}
final int numSegments = sis.size();
final String segmentsFileName = sis.getSegmentsFileName();
// note: we only read the format byte (required preamble) here!
IndexInput input = null;
try {
input = dir.openInput(segmentsFileName, IOContext.DEFAULT);
} catch (Throwable t) {
msg("ERROR: could not open segments file in directory");
if (infoStream != null)
t.printStackTrace(infoStream);
result.cantOpenSegments = true;
return result;
}
int format = 0;
try {
format = input.readInt();
} catch (Throwable t) {
msg("ERROR: could not read segment file version in directory");
if (infoStream != null)
t.printStackTrace(infoStream);
result.missingSegmentVersion = true;
return result;
} finally {
if (input != null)
input.close();
}
String sFormat = "";
boolean skip = false;
result.segmentsFileName = segmentsFileName;
result.numSegments = numSegments;
result.userData = sis.getUserData();
String userDataString;
if (sis.getUserData().size() > 0) {
userDataString = " userData=" + sis.getUserData();
} else {
userDataString = "";
}
String versionString = null;
if (oldSegs != null) {
if (foundNonNullVersion) {
versionString = "versions=[" + oldSegs + " .. " + newest + "]";
} else {
versionString = "version=" + oldSegs;
}
} else {
versionString = oldest.equals(newest) ? ( "version=" + oldest ) : ("versions=[" + oldest + " .. " + newest + "]");
}
msg("Segments file=" + segmentsFileName + " numSegments=" + numSegments
+ " " + versionString + " format=" + sFormat + userDataString);
if (onlySegments != null) {
result.partial = true;
if (infoStream != null)
infoStream.print("\nChecking only these segments:");
for (String s : onlySegments) {
if (infoStream != null)
infoStream.print(" " + s);
}
result.segmentsChecked.addAll(onlySegments);
msg(":");
}
if (skip) {
msg("\nERROR: this index appears to be created by a newer version of Lucene than this tool was compiled on; please re-compile this tool on the matching version of Lucene; exiting");
result.toolOutOfDate = true;
return result;
}
result.newSegments = sis.clone();
result.newSegments.clear();
result.maxSegmentName = -1;
for(int i=0;i<numSegments;i++) {
final SegmentInfoPerCommit info = sis.info(i);
int segmentName = Integer.parseInt(info.info.name.substring(1), Character.MAX_RADIX);
if (segmentName > result.maxSegmentName) {
result.maxSegmentName = segmentName;
}
if (onlySegments != null && !onlySegments.contains(info.info.name)) {
continue;
}
Status.SegmentInfoStatus segInfoStat = new Status.SegmentInfoStatus();
result.segmentInfos.add(segInfoStat);
msg(" " + (1+i) + " of " + numSegments + ": name=" + info.info.name + " docCount=" + info.info.getDocCount());
segInfoStat.name = info.info.name;
segInfoStat.docCount = info.info.getDocCount();
int toLoseDocCount = info.info.getDocCount();
SegmentReader reader = null;
try {
final Codec codec = info.info.getCodec();
msg(" codec=" + codec);
segInfoStat.codec = codec;
msg(" compound=" + info.info.getUseCompoundFile());
segInfoStat.compound = info.info.getUseCompoundFile();
msg(" numFiles=" + info.files().size());
segInfoStat.numFiles = info.files().size();
segInfoStat.sizeMB = info.sizeInBytes()/(1024.*1024.);
if (info.info.getAttribute(Lucene3xSegmentInfoFormat.DS_OFFSET_KEY) == null) {
// don't print size in bytes if its a 3.0 segment with shared docstores
msg(" size (MB)=" + nf.format(segInfoStat.sizeMB));
}
Map<String,String> diagnostics = info.info.getDiagnostics();
segInfoStat.diagnostics = diagnostics;
if (diagnostics.size() > 0) {
msg(" diagnostics = " + diagnostics);
}
// TODO: we could append the info attributes() to the msg?
if (!info.hasDeletions()) {
msg(" no deletions");
segInfoStat.hasDeletions = false;
}
else{
msg(" has deletions [delGen=" + info.getDelGen() + "]");
segInfoStat.hasDeletions = true;
segInfoStat.deletionsGen = info.getDelGen();
}
if (infoStream != null)
infoStream.print(" test: open reader.........");
reader = new SegmentReader(info, DirectoryReader.DEFAULT_TERMS_INDEX_DIVISOR, IOContext.DEFAULT);
segInfoStat.openReaderPassed = true;
final int numDocs = reader.numDocs();
toLoseDocCount = numDocs;
if (reader.hasDeletions()) {
if (reader.numDocs() != info.info.getDocCount() - info.getDelCount()) {
throw new RuntimeException("delete count mismatch: info=" + (info.info.getDocCount() - info.getDelCount()) + " vs reader=" + reader.numDocs());
}
if ((info.info.getDocCount()-reader.numDocs()) > reader.maxDoc()) {
throw new RuntimeException("too many deleted docs: maxDoc()=" + reader.maxDoc() + " vs del count=" + (info.info.getDocCount()-reader.numDocs()));
}
if (info.info.getDocCount() - numDocs != info.getDelCount()) {
throw new RuntimeException("delete count mismatch: info=" + info.getDelCount() + " vs reader=" + (info.info.getDocCount() - numDocs));
}
Bits liveDocs = reader.getLiveDocs();
if (liveDocs == null) {
throw new RuntimeException("segment should have deletions, but liveDocs is null");
} else {
int numLive = 0;
for (int j = 0; j < liveDocs.length(); j++) {
if (liveDocs.get(j)) {
numLive++;
}
}
if (numLive != numDocs) {
throw new RuntimeException("liveDocs count mismatch: info=" + numDocs + ", vs bits=" + numLive);
}
}
segInfoStat.numDeleted = info.info.getDocCount() - numDocs;
msg("OK [" + (segInfoStat.numDeleted) + " deleted docs]");
} else {
if (info.getDelCount() != 0) {
throw new RuntimeException("delete count mismatch: info=" + info.getDelCount() + " vs reader=" + (info.info.getDocCount() - numDocs));
}
Bits liveDocs = reader.getLiveDocs();
if (liveDocs != null) {
// its ok for it to be non-null here, as long as none are set right?
for (int j = 0; j < liveDocs.length(); j++) {
if (!liveDocs.get(j)) {
throw new RuntimeException("liveDocs mismatch: info says no deletions but doc " + j + " is deleted.");
}
}
}
msg("OK");
}
if (reader.maxDoc() != info.info.getDocCount()) {
throw new RuntimeException("SegmentReader.maxDoc() " + reader.maxDoc() + " != SegmentInfos.docCount " + info.info.getDocCount());
}
// Test getFieldInfos()
if (infoStream != null) {
infoStream.print(" test: fields..............");
}
FieldInfos fieldInfos = reader.getFieldInfos();
msg("OK [" + fieldInfos.size() + " fields]");
segInfoStat.numFields = fieldInfos.size();
// Test Field Norms
segInfoStat.fieldNormStatus = testFieldNorms(fieldInfos, reader);
// Test the Term Index
segInfoStat.termIndexStatus = testPostings(fieldInfos, reader);
// Test Stored Fields
segInfoStat.storedFieldStatus = testStoredFields(info, reader, nf);
// Test Term Vectors
segInfoStat.termVectorStatus = testTermVectors(fieldInfos, info, reader, nf);
segInfoStat.docValuesStatus = testDocValues(info, fieldInfos, reader);
// Rethrow the first exception we encountered
// This will cause stats for failed segments to be incremented properly
if (segInfoStat.fieldNormStatus.error != null) {
throw new RuntimeException("Field Norm test failed");
} else if (segInfoStat.termIndexStatus.error != null) {
throw new RuntimeException("Term Index test failed");
} else if (segInfoStat.storedFieldStatus.error != null) {
throw new RuntimeException("Stored Field test failed");
} else if (segInfoStat.termVectorStatus.error != null) {
throw new RuntimeException("Term Vector test failed");
} else if (segInfoStat.docValuesStatus.error != null) {
throw new RuntimeException("DocValues test failed");
}
msg("");
} catch (Throwable t) {
msg("FAILED");
String comment;
comment = "fixIndex() would remove reference to this segment";
msg(" WARNING: " + comment + "; full exception:");
if (infoStream != null)
t.printStackTrace(infoStream);
msg("");
result.totLoseDocCount += toLoseDocCount;
result.numBadSegments++;
continue;
} finally {
if (reader != null)
reader.close();
}
// Keeper
result.newSegments.add(info.clone());
}
if (0 == result.numBadSegments) {
result.clean = true;
} else
msg("WARNING: " + result.numBadSegments + " broken segments (containing " + result.totLoseDocCount + " documents) detected");
if ( ! (result.validCounter = (result.maxSegmentName < sis.counter))) {
result.clean = false;
result.newSegments.counter = result.maxSegmentName + 1;
msg("ERROR: Next segment name counter " + sis.counter + " is not greater than max segment name " + result.maxSegmentName);
}
if (result.clean) {
msg("No problems were detected with this index.\n");
}
return result;
}
/**
* Test field norms.
*/
private Status.FieldNormStatus testFieldNorms(FieldInfos fieldInfos, SegmentReader reader) {
final Status.FieldNormStatus status = new Status.FieldNormStatus();
try {
// Test Field Norms
if (infoStream != null) {
infoStream.print(" test: field norms.........");
}
for (FieldInfo info : fieldInfos) {
if (info.hasNorms()) {
assert reader.hasNorms(info.name); // deprecated path
DocValues dv = reader.normValues(info.name);
checkDocValues(dv, info.name, info.getNormType(), reader.maxDoc());
++status.totFields;
} else {
assert !reader.hasNorms(info.name); // deprecated path
if (reader.normValues(info.name) != null) {
throw new RuntimeException("field: " + info.name + " should omit norms but has them!");
}
}
}
msg("OK [" + status.totFields + " fields]");
} catch (Throwable e) {
msg("ERROR [" + String.valueOf(e.getMessage()) + "]");
status.error = e;
if (infoStream != null) {
e.printStackTrace(infoStream);
}
}
return status;
}
/**
* checks Fields api is consistent with itself.
* searcher is optional, to verify with queries. Can be null.
*/
private Status.TermIndexStatus checkFields(Fields fields, Bits liveDocs, int maxDoc, FieldInfos fieldInfos, boolean doPrint, boolean isVectors) throws IOException {
// TODO: we should probably return our own stats thing...?!
final Status.TermIndexStatus status = new Status.TermIndexStatus();
int computedFieldCount = 0;
if (fields == null) {
msg("OK [no fields/terms]");
return status;
}
DocsEnum docs = null;
DocsEnum docsAndFreqs = null;
DocsAndPositionsEnum postings = null;
String lastField = null;
for (String field : fields) {
// MultiFieldsEnum relies upon this order...
if (lastField != null && field.compareTo(lastField) <= 0) {
throw new RuntimeException("fields out of order: lastField=" + lastField + " field=" + field);
}
lastField = field;
// check that the field is in fieldinfos, and is indexed.
// TODO: add a separate test to check this for different reader impls
FieldInfo fieldInfo = fieldInfos.fieldInfo(field);
if (fieldInfo == null) {
throw new RuntimeException("fieldsEnum inconsistent with fieldInfos, no fieldInfos for: " + field);
}
if (!fieldInfo.isIndexed()) {
throw new RuntimeException("fieldsEnum inconsistent with fieldInfos, isIndexed == false for: " + field);
}
// TODO: really the codec should not return a field
// from FieldsEnum if it has no Terms... but we do
// this today:
// assert fields.terms(field) != null;
computedFieldCount++;
final Terms terms = fields.terms(field);
if (terms == null) {
continue;
}
final boolean hasPositions = terms.hasPositions();
final boolean hasOffsets = terms.hasOffsets();
// term vectors cannot omit TF
final boolean hasFreqs = isVectors || fieldInfo.getIndexOptions().compareTo(IndexOptions.DOCS_AND_FREQS) >= 0;
final TermsEnum termsEnum = terms.iterator(null);
boolean hasOrd = true;
final long termCountStart = status.termCount;
BytesRef lastTerm = null;
Comparator<BytesRef> termComp = terms.getComparator();
long sumTotalTermFreq = 0;
long sumDocFreq = 0;
FixedBitSet visitedDocs = new FixedBitSet(maxDoc);
while(true) {
final BytesRef term = termsEnum.next();
if (term == null) {
break;
}
// make sure terms arrive in order according to
// the comp
if (lastTerm == null) {
lastTerm = BytesRef.deepCopyOf(term);
} else {
if (termComp.compare(lastTerm, term) >= 0) {
throw new RuntimeException("terms out of order: lastTerm=" + lastTerm + " term=" + term);
}
lastTerm.copyBytes(term);
}
final int docFreq = termsEnum.docFreq();
if (docFreq <= 0) {
throw new RuntimeException("docfreq: " + docFreq + " is out of bounds");
}
status.totFreq += docFreq;
sumDocFreq += docFreq;
docs = termsEnum.docs(liveDocs, docs);
postings = termsEnum.docsAndPositions(liveDocs, postings);
if (hasOrd) {
long ord = -1;
try {
ord = termsEnum.ord();
} catch (UnsupportedOperationException uoe) {
hasOrd = false;
}
if (hasOrd) {
final long ordExpected = status.termCount - termCountStart;
if (ord != ordExpected) {
throw new RuntimeException("ord mismatch: TermsEnum has ord=" + ord + " vs actual=" + ordExpected);
}
}
}
status.termCount++;
final DocsEnum docs2;
if (postings != null) {
docs2 = postings;
} else {
docs2 = docs;
}
int lastDoc = -1;
int docCount = 0;
long totalTermFreq = 0;
while(true) {
final int doc = docs2.nextDoc();
if (doc == DocIdSetIterator.NO_MORE_DOCS) {
break;
}
visitedDocs.set(doc);
int freq = -1;
if (hasFreqs) {
freq = docs2.freq();
if (freq <= 0) {
throw new RuntimeException("term " + term + ": doc " + doc + ": freq " + freq + " is out of bounds");
}
status.totPos += freq;
totalTermFreq += freq;
}
docCount++;
if (doc <= lastDoc) {
throw new RuntimeException("term " + term + ": doc " + doc + " <= lastDoc " + lastDoc);
}
if (doc >= maxDoc) {
throw new RuntimeException("term " + term + ": doc " + doc + " >= maxDoc " + maxDoc);
}
lastDoc = doc;
int lastPos = -1;
int lastOffset = 0;
if (hasPositions) {
for(int j=0;j<freq;j++) {
final int pos = postings.nextPosition();
if (pos < 0) {
throw new RuntimeException("term " + term + ": doc " + doc + ": pos " + pos + " is out of bounds");
}
if (pos < lastPos) {
throw new RuntimeException("term " + term + ": doc " + doc + ": pos " + pos + " < lastPos " + lastPos);
}
lastPos = pos;
BytesRef payload = postings.getPayload();
if (payload != null && payload.length < 1) {
throw new RuntimeException("term " + term + ": doc " + doc + ": pos " + pos + " payload length is out of bounds " + payload.length);
}
if (hasOffsets) {
int startOffset = postings.startOffset();
int endOffset = postings.endOffset();
// NOTE: we cannot enforce any bounds whatsoever on vectors... they were a free-for-all before?
// but for offsets in the postings lists these checks are fine: they were always enforced by IndexWriter
if (!isVectors) {
if (startOffset < 0) {
throw new RuntimeException("term " + term + ": doc " + doc + ": pos " + pos + ": startOffset " + startOffset + " is out of bounds");
}
if (startOffset < lastOffset) {
throw new RuntimeException("term " + term + ": doc " + doc + ": pos " + pos + ": startOffset " + startOffset + " < lastStartOffset " + lastOffset);
}
if (endOffset < 0) {
throw new RuntimeException("term " + term + ": doc " + doc + ": pos " + pos + ": endOffset " + endOffset + " is out of bounds");
}
if (endOffset < startOffset) {
throw new RuntimeException("term " + term + ": doc " + doc + ": pos " + pos + ": endOffset " + endOffset + " < startOffset " + startOffset);
}
}
lastOffset = startOffset;
}
}
}
}
final long totalTermFreq2 = termsEnum.totalTermFreq();
final boolean hasTotalTermFreq = hasFreqs && totalTermFreq2 != -1;
// Re-count if there are deleted docs:
if (liveDocs != null) {
if (hasFreqs) {
final DocsEnum docsNoDel = termsEnum.docs(null, docsAndFreqs);
docCount = 0;
totalTermFreq = 0;
while(docsNoDel.nextDoc() != DocIdSetIterator.NO_MORE_DOCS) {
visitedDocs.set(docsNoDel.docID());
docCount++;
totalTermFreq += docsNoDel.freq();
}
} else {
final DocsEnum docsNoDel = termsEnum.docs(null, docs, 0);
docCount = 0;
totalTermFreq = -1;
while(docsNoDel.nextDoc() != DocIdSetIterator.NO_MORE_DOCS) {
visitedDocs.set(docsNoDel.docID());
docCount++;
}
}
}
if (docCount != docFreq) {
throw new RuntimeException("term " + term + " docFreq=" + docFreq + " != tot docs w/o deletions " + docCount);
}
if (hasTotalTermFreq) {
if (totalTermFreq2 <= 0) {
throw new RuntimeException("totalTermFreq: " + totalTermFreq2 + " is out of bounds");
}
sumTotalTermFreq += totalTermFreq;
if (totalTermFreq != totalTermFreq2) {
throw new RuntimeException("term " + term + " totalTermFreq=" + totalTermFreq2 + " != recomputed totalTermFreq=" + totalTermFreq);
}
}
// Test skipping
if (hasPositions) {
for(int idx=0;idx<7;idx++) {
final int skipDocID = (int) (((idx+1)*(long) maxDoc)/8);
postings = termsEnum.docsAndPositions(liveDocs, postings);
final int docID = postings.advance(skipDocID);
if (docID == DocIdSetIterator.NO_MORE_DOCS) {
break;
} else {
if (docID < skipDocID) {
throw new RuntimeException("term " + term + ": advance(docID=" + skipDocID + ") returned docID=" + docID);
}
final int freq = postings.freq();
if (freq <= 0) {
throw new RuntimeException("termFreq " + freq + " is out of bounds");
}
int lastPosition = -1;
int lastOffset = 0;
for(int posUpto=0;posUpto<freq;posUpto++) {
final int pos = postings.nextPosition();
if (pos < 0) {
throw new RuntimeException("position " + pos + " is out of bounds");
}
if (pos < lastPosition) {
throw new RuntimeException("position " + pos + " is < lastPosition " + lastPosition);
}
lastPosition = pos;
if (hasOffsets) {
int startOffset = postings.startOffset();
int endOffset = postings.endOffset();
// NOTE: we cannot enforce any bounds whatsoever on vectors... they were a free-for-all before?
// but for offsets in the postings lists these checks are fine: they were always enforced by IndexWriter
if (!isVectors) {
if (startOffset < 0) {
throw new RuntimeException("term " + term + ": doc " + docID + ": pos " + pos + ": startOffset " + startOffset + " is out of bounds");
}
if (startOffset < lastOffset) {
throw new RuntimeException("term " + term + ": doc " + docID + ": pos " + pos + ": startOffset " + startOffset + " < lastStartOffset " + lastOffset);
}
if (endOffset < 0) {
throw new RuntimeException("term " + term + ": doc " + docID + ": pos " + pos + ": endOffset " + endOffset + " is out of bounds");
}
if (endOffset < startOffset) {
throw new RuntimeException("term " + term + ": doc " + docID + ": pos " + pos + ": endOffset " + endOffset + " < startOffset " + startOffset);
}
}
lastOffset = startOffset;
}
}
final int nextDocID = postings.nextDoc();
if (nextDocID == DocIdSetIterator.NO_MORE_DOCS) {
break;
}
if (nextDocID <= docID) {
throw new RuntimeException("term " + term + ": advance(docID=" + skipDocID + "), then .next() returned docID=" + nextDocID + " vs prev docID=" + docID);
}
}
}
} else {
for(int idx=0;idx<7;idx++) {
final int skipDocID = (int) (((idx+1)*(long) maxDoc)/8);
docs = termsEnum.docs(liveDocs, docs, 0);
final int docID = docs.advance(skipDocID);
if (docID == DocIdSetIterator.NO_MORE_DOCS) {
break;
} else {
if (docID < skipDocID) {
throw new RuntimeException("term " + term + ": advance(docID=" + skipDocID + ") returned docID=" + docID);
}
final int nextDocID = docs.nextDoc();
if (nextDocID == DocIdSetIterator.NO_MORE_DOCS) {
break;
}
if (nextDocID <= docID) {
throw new RuntimeException("term " + term + ": advance(docID=" + skipDocID + "), then .next() returned docID=" + nextDocID + " vs prev docID=" + docID);
}
}
}
}
}
final Terms fieldTerms = fields.terms(field);
if (fieldTerms == null) {
// Unusual: the FieldsEnum returned a field but
// the Terms for that field is null; this should
// only happen if it's a ghost field (field with
// no terms, eg there used to be terms but all
// docs got deleted and then merged away):
} else {
if (fieldTerms instanceof BlockTreeTermsReader.FieldReader) {
final BlockTreeTermsReader.Stats stats = ((BlockTreeTermsReader.FieldReader) fieldTerms).computeStats();
assert stats != null;
if (status.blockTreeStats == null) {
status.blockTreeStats = new HashMap<String,BlockTreeTermsReader.Stats>();
}
status.blockTreeStats.put(field, stats);
}
if (sumTotalTermFreq != 0) {
final long v = fields.terms(field).getSumTotalTermFreq();
if (v != -1 && sumTotalTermFreq != v) {
throw new RuntimeException("sumTotalTermFreq for field " + field + "=" + v + " != recomputed sumTotalTermFreq=" + sumTotalTermFreq);
}
}
if (sumDocFreq != 0) {
final long v = fields.terms(field).getSumDocFreq();
if (v != -1 && sumDocFreq != v) {
throw new RuntimeException("sumDocFreq for field " + field + "=" + v + " != recomputed sumDocFreq=" + sumDocFreq);
}
}
if (fieldTerms != null) {
final int v = fieldTerms.getDocCount();
if (v != -1 && visitedDocs.cardinality() != v) {
throw new RuntimeException("docCount for field " + field + "=" + v + " != recomputed docCount=" + visitedDocs.cardinality());
}
}
// Test seek to last term:
if (lastTerm != null) {
if (termsEnum.seekCeil(lastTerm) != TermsEnum.SeekStatus.FOUND) {
throw new RuntimeException("seek to last term " + lastTerm + " failed");
}
int expectedDocFreq = termsEnum.docFreq();
DocsEnum d = termsEnum.docs(null, null, 0);
int docFreq = 0;
while (d.nextDoc() != DocIdSetIterator.NO_MORE_DOCS) {
docFreq++;
}
if (docFreq != expectedDocFreq) {
throw new RuntimeException("docFreq for last term " + lastTerm + "=" + expectedDocFreq + " != recomputed docFreq=" + docFreq);
}
}
// check unique term count
long termCount = -1;
if (status.termCount-termCountStart > 0) {
termCount = fields.terms(field).size();
if (termCount != -1 && termCount != status.termCount - termCountStart) {
throw new RuntimeException("termCount mismatch " + termCount + " vs " + (status.termCount - termCountStart));
}
}
// Test seeking by ord
if (hasOrd && status.termCount-termCountStart > 0) {
int seekCount = (int) Math.min(10000L, termCount);
if (seekCount > 0) {
BytesRef[] seekTerms = new BytesRef[seekCount];
// Seek by ord
for(int i=seekCount-1;i>=0;i--) {
long ord = i*(termCount/seekCount);
termsEnum.seekExact(ord);
seekTerms[i] = BytesRef.deepCopyOf(termsEnum.term());
}
// Seek by term
long totDocCount = 0;
for(int i=seekCount-1;i>=0;i--) {
if (termsEnum.seekCeil(seekTerms[i]) != TermsEnum.SeekStatus.FOUND) {
throw new RuntimeException("seek to existing term " + seekTerms[i] + " failed");
}
docs = termsEnum.docs(liveDocs, docs, 0);
if (docs == null) {
throw new RuntimeException("null DocsEnum from to existing term " + seekTerms[i]);
}
while(docs.nextDoc() != DocIdSetIterator.NO_MORE_DOCS) {
totDocCount++;
}
}
long totDocCountNoDeletes = 0;
long totDocFreq = 0;
for(int i=0;i<seekCount;i++) {
if (!termsEnum.seekExact(seekTerms[i], true)) {
throw new RuntimeException("seek to existing term " + seekTerms[i] + " failed");
}
totDocFreq += termsEnum.docFreq();
docs = termsEnum.docs(null, docs, 0);
if (docs == null) {
throw new RuntimeException("null DocsEnum from to existing term " + seekTerms[i]);
}
while(docs.nextDoc() != DocIdSetIterator.NO_MORE_DOCS) {
totDocCountNoDeletes++;
}
}
if (totDocCount > totDocCountNoDeletes) {
throw new RuntimeException("more postings with deletes=" + totDocCount + " than without=" + totDocCountNoDeletes);
}
if (totDocCountNoDeletes != totDocFreq) {
throw new RuntimeException("docfreqs=" + totDocFreq + " != recomputed docfreqs=" + totDocCountNoDeletes);
}
}
}
}
}
int fieldCount = fields.size();
if (fieldCount != -1) {
if (fieldCount < 0) {
throw new RuntimeException("invalid fieldCount: " + fieldCount);
}
if (fieldCount != computedFieldCount) {
throw new RuntimeException("fieldCount mismatch " + fieldCount + " vs recomputed field count " + computedFieldCount);
}
}
// for most implementations, this is boring (just the sum across all fields)
// but codecs that don't work per-field like preflex actually implement this,
// but don't implement it on Terms, so the check isn't redundant.
long uniqueTermCountAllFields = fields.getUniqueTermCount();
// this means something is seriously screwed, e.g. we are somehow getting enclosed in PFCW!!!!!!
if (uniqueTermCountAllFields == -1) {
throw new RuntimeException("invalid termCount: -1");
}
if (status.termCount != uniqueTermCountAllFields) {
throw new RuntimeException("termCount mismatch " + uniqueTermCountAllFields + " vs " + (status.termCount));
}
if (doPrint) {
msg("OK [" + status.termCount + " terms; " + status.totFreq + " terms/docs pairs; " + status.totPos + " tokens]");
}
if (verbose && status.blockTreeStats != null && infoStream != null && status.termCount > 0) {
for(Map.Entry<String,BlockTreeTermsReader.Stats> ent : status.blockTreeStats.entrySet()) {
infoStream.println(" field \"" + ent.getKey() + "\":");
infoStream.println(" " + ent.getValue().toString().replace("\n", "\n "));
}
}
return status;
}
/**
* Test the term index.
*/
private Status.TermIndexStatus testPostings(FieldInfos fieldInfos, SegmentReader reader) {
// TODO: we should go and verify term vectors match, if
// crossCheckTermVectors is on...
Status.TermIndexStatus status;
final int maxDoc = reader.maxDoc();
final Bits liveDocs = reader.getLiveDocs();
try {
if (infoStream != null) {
infoStream.print(" test: terms, freq, prox...");
}
final Fields fields = reader.fields();
status = checkFields(fields, liveDocs, maxDoc, fieldInfos, true, false);
if (liveDocs != null) {
if (infoStream != null) {
infoStream.print(" test (ignoring deletes): terms, freq, prox...");
}
checkFields(fields, null, maxDoc, fieldInfos, true, false);
}
} catch (Throwable e) {
msg("ERROR: " + e);
status = new Status.TermIndexStatus();
status.error = e;
if (infoStream != null) {
e.printStackTrace(infoStream);
}
}
return status;
}
/**
* Test stored fields for a segment.
*/
private Status.StoredFieldStatus testStoredFields(SegmentInfoPerCommit info, SegmentReader reader, NumberFormat format) {
final Status.StoredFieldStatus status = new Status.StoredFieldStatus();
try {
if (infoStream != null) {
infoStream.print(" test: stored fields.......");
}
// Scan stored fields for all documents
final Bits liveDocs = reader.getLiveDocs();
for (int j = 0; j < info.info.getDocCount(); ++j) {
// Intentionally pull even deleted documents to
// make sure they too are not corrupt:
Document doc = reader.document(j);
if (liveDocs == null || liveDocs.get(j)) {
status.docCount++;
status.totFields += doc.getFields().size();
}
}
// Validate docCount
if (status.docCount != reader.numDocs()) {
throw new RuntimeException("docCount=" + status.docCount + " but saw " + status.docCount + " undeleted docs");
}
msg("OK [" + status.totFields + " total field count; avg " +
format.format((((float) status.totFields)/status.docCount)) + " fields per doc]");
} catch (Throwable e) {
msg("ERROR [" + String.valueOf(e.getMessage()) + "]");
status.error = e;
if (infoStream != null) {
e.printStackTrace(infoStream);
}
}
return status;
}
/** Helper method to verify values (either docvalues or norms), also checking
* type and size against fieldinfos/segmentinfo
*/
private void checkDocValues(DocValues docValues, String fieldName, DocValues.Type expectedType, int expectedDocs) throws IOException {
if (docValues == null) {
throw new RuntimeException("field: " + fieldName + " omits docvalues but should have them!");
}
DocValues.Type type = docValues.getType();
if (type != expectedType) {
throw new RuntimeException("field: " + fieldName + " has type: " + type + " but fieldInfos says:" + expectedType);
}
final Source values = docValues.getDirectSource();
int size = docValues.getValueSize();
for (int i = 0; i < expectedDocs; i++) {
switch (type) {
case BYTES_FIXED_SORTED:
case BYTES_VAR_SORTED:
case BYTES_FIXED_DEREF:
case BYTES_FIXED_STRAIGHT:
case BYTES_VAR_DEREF:
case BYTES_VAR_STRAIGHT:
BytesRef bytes = new BytesRef();
values.getBytes(i, bytes);
if (size != -1 && size != bytes.length) {
throw new RuntimeException("field: " + fieldName + " returned wrongly sized bytes, was: " + bytes.length + " should be: " + size);
}
break;
case FLOAT_32:
assert size == 4;
values.getFloat(i);
break;
case FLOAT_64:
assert size == 8;
values.getFloat(i);
break;
case VAR_INTS:
assert size == -1;
values.getInt(i);
break;
case FIXED_INTS_16:
assert size == 2;
values.getInt(i);
break;
case FIXED_INTS_32:
assert size == 4;
values.getInt(i);
break;
case FIXED_INTS_64:
assert size == 8;
values.getInt(i);
break;
case FIXED_INTS_8:
assert size == 1;
values.getInt(i);
break;
default:
throw new IllegalArgumentException("Field: " + fieldName
+ " - no such DocValues type: " + type);
}
}
if (type == DocValues.Type.BYTES_FIXED_SORTED || type == DocValues.Type.BYTES_VAR_SORTED) {
// check sorted bytes
SortedSource sortedValues = values.asSortedSource();
Comparator<BytesRef> comparator = sortedValues.getComparator();
int lastOrd = -1;
BytesRef lastBytes = new BytesRef();
for (int i = 0; i < expectedDocs; i++) {
int ord = sortedValues.ord(i);
if (ord < 0 || ord > expectedDocs) {
throw new RuntimeException("field: " + fieldName + " ord is out of bounds: " + ord);
}
BytesRef bytes = new BytesRef();
sortedValues.getByOrd(ord, bytes);
if (lastOrd != -1) {
int ordComp = Integer.signum(new Integer(ord).compareTo(new Integer(lastOrd)));
int bytesComp = Integer.signum(comparator.compare(bytes, lastBytes));
if (ordComp != bytesComp) {
throw new RuntimeException("field: " + fieldName + " ord comparison is wrong: " + ordComp + " comparator claims: " + bytesComp);
}
}
lastOrd = ord;
lastBytes = bytes;
}
}
}
private Status.DocValuesStatus testDocValues(SegmentInfoPerCommit info,
FieldInfos fieldInfos,
SegmentReader reader) {
final Status.DocValuesStatus status = new Status.DocValuesStatus();
try {
if (infoStream != null) {
infoStream.print(" test: DocValues........");
}
for (FieldInfo fieldInfo : fieldInfos) {
if (fieldInfo.hasDocValues()) {
status.totalValueFields++;
final DocValues docValues = reader.docValues(fieldInfo.name);
checkDocValues(docValues, fieldInfo.name, fieldInfo.getDocValuesType(), reader.maxDoc());
} else {
if (reader.docValues(fieldInfo.name) != null) {
throw new RuntimeException("field: " + fieldInfo.name + " has docvalues but should omit them!");
}
}
}
msg("OK [" + status.docCount + " total doc Count; Num DocValues Fields "
+ status.totalValueFields);
} catch (Throwable e) {
msg("ERROR [" + String.valueOf(e.getMessage()) + "]");
status.error = e;
if (infoStream != null) {
e.printStackTrace(infoStream);
}
}
return status;
}
/**
* Test term vectors for a segment.
*/
private Status.TermVectorStatus testTermVectors(FieldInfos fieldInfos, SegmentInfoPerCommit info, SegmentReader reader, NumberFormat format) {
final Status.TermVectorStatus status = new Status.TermVectorStatus();
final Bits onlyDocIsDeleted = new FixedBitSet(1);
try {
if (infoStream != null) {
infoStream.print(" test: term vectors........");
}
DocsEnum docs = null;
DocsAndPositionsEnum postings = null;
// Only used if crossCheckTermVectors is true:
DocsEnum postingsDocs = null;
DocsAndPositionsEnum postingsPostings = null;
final Bits liveDocs = reader.getLiveDocs();
final Fields postingsFields;
// TODO: testTermsIndex
if (crossCheckTermVectors) {
postingsFields = reader.fields();
} else {
postingsFields = null;
}
TermsEnum termsEnum = null;
TermsEnum postingsTermsEnum = null;
for (int j = 0; j < info.info.getDocCount(); ++j) {
// Intentionally pull/visit (but don't count in
// stats) deleted documents to make sure they too
// are not corrupt:
Fields tfv = reader.getTermVectors(j);
// TODO: can we make a IS(FIR) that searches just
// this term vector... to pass for searcher?
if (tfv != null) {
// First run with no deletions:
checkFields(tfv, null, 1, fieldInfos, false, true);
// Again, with the one doc deleted:
checkFields(tfv, onlyDocIsDeleted, 1, fieldInfos, false, true);
// Only agg stats if the doc is live:
final boolean doStats = liveDocs == null || liveDocs.get(j);
if (doStats) {
status.docCount++;
}
for(String field : tfv) {
if (doStats) {
status.totVectors++;
}
// Make sure FieldInfo thinks this field is vector'd:
final FieldInfo fieldInfo = fieldInfos.fieldInfo(field);
if (!fieldInfo.hasVectors()) {
throw new RuntimeException("docID=" + j + " has term vectors for field=" + field + " but FieldInfo has storeTermVector=false");
}
if (crossCheckTermVectors) {
Terms terms = tfv.terms(field);
termsEnum = terms.iterator(termsEnum);
final boolean postingsHasFreq = fieldInfo.getIndexOptions().compareTo(IndexOptions.DOCS_AND_FREQS) >= 0;
final boolean postingsHasPayload = fieldInfo.hasPayloads();
final boolean vectorsHasPayload = terms.hasPayloads();
Terms postingsTerms = postingsFields.terms(field);
if (postingsTerms == null) {
throw new RuntimeException("vector field=" + field + " does not exist in postings; doc=" + j);
}
postingsTermsEnum = postingsTerms.iterator(postingsTermsEnum);
final boolean hasProx = terms.hasOffsets() || terms.hasPositions();
BytesRef term = null;
while ((term = termsEnum.next()) != null) {
if (hasProx) {
postings = termsEnum.docsAndPositions(null, postings);
assert postings != null;
docs = null;
} else {
docs = termsEnum.docs(null, docs);
assert docs != null;
postings = null;
}
final DocsEnum docs2;
if (hasProx) {
assert postings != null;
docs2 = postings;
} else {
assert docs != null;
docs2 = docs;
}
final DocsEnum postingsDocs2;
if (!postingsTermsEnum.seekExact(term, true)) {
throw new RuntimeException("vector term=" + term + " field=" + field + " does not exist in postings; doc=" + j);
}
postingsPostings = postingsTermsEnum.docsAndPositions(null, postingsPostings);
if (postingsPostings == null) {
// Term vectors were indexed w/ pos but postings were not
postingsDocs = postingsTermsEnum.docs(null, postingsDocs);
if (postingsDocs == null) {
throw new RuntimeException("vector term=" + term + " field=" + field + " does not exist in postings; doc=" + j);
}
}
if (postingsPostings != null) {
postingsDocs2 = postingsPostings;
} else {
postingsDocs2 = postingsDocs;
}
final int advanceDoc = postingsDocs2.advance(j);
if (advanceDoc != j) {
throw new RuntimeException("vector term=" + term + " field=" + field + ": doc=" + j + " was not found in postings (got: " + advanceDoc + ")");
}
final int doc = docs2.nextDoc();
if (doc != 0) {
throw new RuntimeException("vector for doc " + j + " didn't return docID=0: got docID=" + doc);
}
if (postingsHasFreq) {
final int tf = docs2.freq();
if (postingsHasFreq && postingsDocs2.freq() != tf) {
throw new RuntimeException("vector term=" + term + " field=" + field + " doc=" + j + ": freq=" + tf + " differs from postings freq=" + postingsDocs2.freq());
}
if (hasProx) {
for (int i = 0; i < tf; i++) {
int pos = postings.nextPosition();
if (postingsPostings != null) {
int postingsPos = postingsPostings.nextPosition();
if (terms.hasPositions() && pos != postingsPos) {
throw new RuntimeException("vector term=" + term + " field=" + field + " doc=" + j + ": pos=" + pos + " differs from postings pos=" + postingsPos);
}
}
// Call the methods to at least make
// sure they don't throw exc:
final int startOffset = postings.startOffset();
final int endOffset = postings.endOffset();
// TODO: these are too anal...?
/*
if (endOffset < startOffset) {
throw new RuntimeException("vector startOffset=" + startOffset + " is > endOffset=" + endOffset);
}
if (startOffset < lastStartOffset) {
throw new RuntimeException("vector startOffset=" + startOffset + " is < prior startOffset=" + lastStartOffset);
}
lastStartOffset = startOffset;
*/
if (postingsPostings != null) {
final int postingsStartOffset = postingsPostings.startOffset();
final int postingsEndOffset = postingsPostings.endOffset();
if (startOffset != -1 && postingsStartOffset != -1 && startOffset != postingsStartOffset) {
throw new RuntimeException("vector term=" + term + " field=" + field + " doc=" + j + ": startOffset=" + startOffset + " differs from postings startOffset=" + postingsStartOffset);
}
if (endOffset != -1 && postingsEndOffset != -1 && endOffset != postingsEndOffset) {
throw new RuntimeException("vector term=" + term + " field=" + field + " doc=" + j + ": endOffset=" + endOffset + " differs from postings endOffset=" + postingsEndOffset);
}
}
BytesRef payload = postings.getPayload();
if (payload != null) {
assert vectorsHasPayload;
}
if (postingsHasPayload && vectorsHasPayload) {
assert postingsPostings != null;
if (payload == null) {
// we have payloads, but not at this position.
// postings has payloads too, it should not have one at this position
if (postingsPostings.getPayload() != null) {
throw new RuntimeException("vector term=" + term + " field=" + field + " doc=" + j + " has no payload but postings does: " + postingsPostings.getPayload());
}
} else {
// we have payloads, and one at this position
// postings should also have one at this position, with the same bytes.
if (postingsPostings.getPayload() == null) {
throw new RuntimeException("vector term=" + term + " field=" + field + " doc=" + j + " has payload=" + payload + " but postings does not.");
}
BytesRef postingsPayload = postingsPostings.getPayload();
if (!payload.equals(postingsPayload)) {
throw new RuntimeException("vector term=" + term + " field=" + field + " doc=" + j + " has payload=" + payload + " but differs from postings payload=" + postingsPayload);
}
}
}
}
}
}
}
}
}
}
}
float vectorAvg = status.docCount == 0 ? 0 : status.totVectors / (float)status.docCount;
msg("OK [" + status.totVectors + " total vector count; avg " +
format.format(vectorAvg) + " term/freq vector fields per doc]");
} catch (Throwable e) {
msg("ERROR [" + String.valueOf(e.getMessage()) + "]");
status.error = e;
if (infoStream != null) {
e.printStackTrace(infoStream);
}
}
return status;
}
/** Repairs the index using previously returned result
* from {@link #checkIndex}. Note that this does not
* remove any of the unreferenced files after it's done;
* you must separately open an {@link IndexWriter}, which
* deletes unreferenced files when it's created.
*
* <p><b>WARNING</b>: this writes a
* new segments file into the index, effectively removing
* all documents in broken segments from the index.
* BE CAREFUL.
*
* <p><b>WARNING</b>: Make sure you only call this when the
* index is not opened by any writer. */
public void fixIndex(Status result, Codec codec) throws IOException {
if (result.partial)
throw new IllegalArgumentException("can only fix an index that was fully checked (this status checked a subset of segments)");
result.newSegments.changed();
result.newSegments.commit(result.dir);
}
private static boolean assertsOn;
private static boolean testAsserts() {
assertsOn = true;
return true;
}
private static boolean assertsOn() {
assert testAsserts();
return assertsOn;
}
/** Command-line interface to check and fix an index.
<p>
Run it like this:
<pre>
java -ea:org.apache.lucene... org.apache.lucene.index.CheckIndex pathToIndex [-fix] [-verbose] [-segment X] [-segment Y]
</pre>
<ul>
<li><code>-fix</code>: actually write a new segments_N file, removing any problematic segments
<li><code>-segment X</code>: only check the specified
segment(s). This can be specified multiple times,
to check more than one segment, eg <code>-segment _2
-segment _a</code>. You can't use this with the -fix
option.
</ul>
<p><b>WARNING</b>: <code>-fix</code> should only be used on an emergency basis as it will cause
documents (perhaps many) to be permanently removed from the index. Always make
a backup copy of your index before running this! Do not run this tool on an index
that is actively being written to. You have been warned!
<p> Run without -fix, this tool will open the index, report version information
and report any exceptions it hits and what action it would take if -fix were
specified. With -fix, this tool will remove any segments that have issues and
write a new segments_N file. This means all documents contained in the affected
segments will be removed.
<p>
This tool exits with exit code 1 if the index cannot be opened or has any
corruption, else 0.
*/
public static void main(String[] args) throws IOException, InterruptedException {
boolean doFix = false;
boolean doCrossCheckTermVectors = false;
Codec codec = Codec.getDefault(); // only used when fixing
boolean verbose = false;
List<String> onlySegments = new ArrayList<String>();
String indexPath = null;
String dirImpl = null;
int i = 0;
while(i < args.length) {
String arg = args[i];
if ("-fix".equals(arg)) {
doFix = true;
} else if ("-crossCheckTermVectors".equals(arg)) {
doCrossCheckTermVectors = true;
} else if ("-codec".equals(arg)) {
if (i == args.length-1) {
System.out.println("ERROR: missing name for -codec option");
System.exit(1);
}
i++;
codec = Codec.forName(args[i]);
} else if (arg.equals("-verbose")) {
verbose = true;
} else if (arg.equals("-segment")) {
if (i == args.length-1) {
System.out.println("ERROR: missing name for -segment option");
System.exit(1);
}
i++;
onlySegments.add(args[i]);
} else if ("-dir-impl".equals(arg)) {
if (i == args.length - 1) {
System.out.println("ERROR: missing value for -dir-impl option");
System.exit(1);
}
i++;
dirImpl = args[i];
} else {
if (indexPath != null) {
System.out.println("ERROR: unexpected extra argument '" + args[i] + "'");
System.exit(1);
}
indexPath = args[i];
}
i++;
}
if (indexPath == null) {
System.out.println("\nERROR: index path not specified");
System.out.println("\nUsage: java org.apache.lucene.index.CheckIndex pathToIndex [-fix] [-crossCheckTermVectors] [-segment X] [-segment Y] [-dir-impl X]\n" +
"\n" +
" -fix: actually write a new segments_N file, removing any problematic segments\n" +
" -crossCheckTermVectors: verifies that term vectors match postings; THIS IS VERY SLOW!\n" +
" -codec X: when fixing, codec to write the new segments_N file with\n" +
" -verbose: print additional details\n" +
" -segment X: only check the specified segments. This can be specified multiple\n" +
" times, to check more than one segment, eg '-segment _2 -segment _a'.\n" +
" You can't use this with the -fix option\n" +
" -dir-impl X: use a specific " + FSDirectory.class.getSimpleName() + " implementation. " +
"If no package is specified the " + FSDirectory.class.getPackage().getName() + " package will be used.\n" +
"\n" +
"**WARNING**: -fix should only be used on an emergency basis as it will cause\n" +
"documents (perhaps many) to be permanently removed from the index. Always make\n" +
"a backup copy of your index before running this! Do not run this tool on an index\n" +
"that is actively being written to. You have been warned!\n" +
"\n" +
"Run without -fix, this tool will open the index, report version information\n" +
"and report any exceptions it hits and what action it would take if -fix were\n" +
"specified. With -fix, this tool will remove any segments that have issues and\n" +
"write a new segments_N file. This means all documents contained in the affected\n" +
"segments will be removed.\n" +
"\n" +
"This tool exits with exit code 1 if the index cannot be opened or has any\n" +
"corruption, else 0.\n");
System.exit(1);
}
if (!assertsOn())
System.out.println("\nNOTE: testing will be more thorough if you run java with '-ea:org.apache.lucene...', so assertions are enabled");
if (onlySegments.size() == 0)
onlySegments = null;
else if (doFix) {
System.out.println("ERROR: cannot specify both -fix and -segment");
System.exit(1);
}
System.out.println("\nOpening index @ " + indexPath + "\n");
Directory dir = null;
try {
if (dirImpl == null) {
dir = FSDirectory.open(new File(indexPath));
} else {
dir = CommandLineUtil.newFSDirectory(dirImpl, new File(indexPath));
}
} catch (Throwable t) {
System.out.println("ERROR: could not open directory \"" + indexPath + "\"; exiting");
t.printStackTrace(System.out);
System.exit(1);
}
CheckIndex checker = new CheckIndex(dir);
checker.setCrossCheckTermVectors(doCrossCheckTermVectors);
checker.setInfoStream(System.out, verbose);
Status result = checker.checkIndex(onlySegments);
if (result.missingSegments) {
System.exit(1);
}
if (!result.clean) {
if (!doFix) {
System.out.println("WARNING: would write new segments file, and " + result.totLoseDocCount + " documents would be lost, if -fix were specified\n");
} else {
System.out.println("WARNING: " + result.totLoseDocCount + " documents will be lost\n");
System.out.println("NOTE: will write new segments file in 5 seconds; this will remove " + result.totLoseDocCount + " docs from the index. THIS IS YOUR LAST CHANCE TO CTRL+C!");
for(int s=0;s<5;s++) {
Thread.sleep(1000);
System.out.println(" " + (5-s) + "...");
}
System.out.println("Writing...");
checker.fixIndex(result, codec);
System.out.println("OK");
System.out.println("Wrote new segments file \"" + result.newSegments.getSegmentsFileName() + "\"");
}
}
System.out.println("");
final int exitCode;
if (result.clean == true)
exitCode = 0;
else
exitCode = 1;
System.exit(exitCode);
}
}