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* 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
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*
* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
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* KIND, either express or implied. See the License for the
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package org.apache.hadoop.hive.metastore.hbase;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.SortedMap;
import java.util.TreeMap;
import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.client.HTableInterface;
import org.apache.hadoop.hive.conf.HiveConf;
import org.apache.hadoop.hive.metastore.api.AggrStats;
import org.apache.hadoop.hive.metastore.api.BooleanColumnStatsData;
import org.apache.hadoop.hive.metastore.api.ColumnStatistics;
import org.apache.hadoop.hive.metastore.api.ColumnStatisticsData;
import org.apache.hadoop.hive.metastore.api.ColumnStatisticsDesc;
import org.apache.hadoop.hive.metastore.api.ColumnStatisticsObj;
import org.apache.hadoop.hive.metastore.api.DoubleColumnStatsData;
import org.apache.hadoop.hive.metastore.api.FieldSchema;
import org.apache.hadoop.hive.metastore.api.Partition;
import org.apache.hadoop.hive.metastore.api.SerDeInfo;
import org.apache.hadoop.hive.metastore.api.StorageDescriptor;
import org.apache.hadoop.hive.metastore.api.Table;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class TestHBaseAggregateStatsCache {
private static final Logger LOG = LoggerFactory.getLogger(TestHBaseAggregateStatsCache.class.getName());
@Mock HTableInterface htable;
private HBaseStore store;
SortedMap<String, Cell> rows = new TreeMap<>();
@Before
public void before() throws IOException {
MockitoAnnotations.initMocks(this);
HiveConf conf = new HiveConf();
conf.setBoolean(HBaseReadWrite.NO_CACHE_CONF, true);
store = MockUtils.init(conf, htable, rows);
store.backdoor().getStatsCache().resetCounters();
}
private static interface Checker {
void checkStats(AggrStats aggrStats) throws Exception;
}
// Do to limitations in the Mock infrastructure we use for HBase testing we can only test
// this for a single column table and we can't really test hits in hbase, only in memory or
// build from scratch. But it's still useful to cover many bugs. More in depth testing with
// multiple columns and with HBase hits is done in TestHBaseAggrStatsCacheIntegration.
@Test
public void allWithStats() throws Exception {
String dbName = "default";
String tableName = "hit";
List<String> partVals1 = Arrays.asList("today");
List<String> partVals2 = Arrays.asList("yesterday");
long now = System.currentTimeMillis();
List<FieldSchema> cols = new ArrayList<>();
cols.add(new FieldSchema("col1", "boolean", "nocomment"));
SerDeInfo serde = new SerDeInfo("serde", "seriallib", null);
StorageDescriptor sd = new StorageDescriptor(cols, "file:/tmp", "input", "output", false, 0,
serde, null, null, Collections.<String, String>emptyMap());
List<FieldSchema> partCols = new ArrayList<>();
partCols.add(new FieldSchema("ds", "string", ""));
Table table = new Table(tableName, dbName, "me", (int)now, (int)now, 0, sd, partCols,
Collections.<String, String>emptyMap(), null, null, null);
store.createTable(table);
for (List<String> partVals : Arrays.asList(partVals1, partVals2)) {
StorageDescriptor psd = new StorageDescriptor(sd);
psd.setLocation("file:/tmp/default/hit/ds=" + partVals.get(0));
Partition part = new Partition(partVals, dbName, tableName, (int) now, (int) now, psd,
Collections.<String, String>emptyMap());
store.addPartition(part);
ColumnStatistics cs = new ColumnStatistics();
ColumnStatisticsDesc desc = new ColumnStatisticsDesc(false, dbName, tableName);
desc.setLastAnalyzed(now);
desc.setPartName("ds=" + partVals.get(0));
cs.setStatsDesc(desc);
ColumnStatisticsObj obj = new ColumnStatisticsObj();
obj.setColName("col1");
obj.setColType("boolean");
ColumnStatisticsData data = new ColumnStatisticsData();
BooleanColumnStatsData bcsd = new BooleanColumnStatsData();
bcsd.setNumFalses(10);
bcsd.setNumTrues(20);
bcsd.setNumNulls(30);
data.setBooleanStats(bcsd);
obj.setStatsData(data);
cs.addToStatsObj(obj);
store.updatePartitionColumnStatistics(cs, partVals);
}
Checker statChecker = new Checker() {
@Override
public void checkStats(AggrStats aggrStats) throws Exception {
Assert.assertEquals(2, aggrStats.getPartsFound());
Assert.assertEquals(1, aggrStats.getColStatsSize());
ColumnStatisticsObj cso = aggrStats.getColStats().get(0);
Assert.assertEquals("col1", cso.getColName());
Assert.assertEquals("boolean", cso.getColType());
BooleanColumnStatsData bcsd = cso.getStatsData().getBooleanStats();
Assert.assertEquals(20, bcsd.getNumFalses());
Assert.assertEquals(40, bcsd.getNumTrues());
Assert.assertEquals(60, bcsd.getNumNulls());
}
};
AggrStats aggrStats = store.get_aggr_stats_for(dbName, tableName,
Arrays.asList("ds=today", "ds=yesterday"), Arrays.asList("col1"));
statChecker.checkStats(aggrStats);
// Check that we had to build it from the stats
Assert.assertEquals(0, store.backdoor().getStatsCache().hbaseHits.getCnt());
Assert.assertEquals(1, store.backdoor().getStatsCache().totalGets.getCnt());
Assert.assertEquals(1, store.backdoor().getStatsCache().misses.getCnt());
// Call again, this time it should come from memory. Also, reverse the name order this time
// to assure that we still hit.
aggrStats = store.get_aggr_stats_for(dbName, tableName,
Arrays.asList("ds=yesterday", "ds=today"), Arrays.asList("col1"));
statChecker.checkStats(aggrStats);
Assert.assertEquals(0, store.backdoor().getStatsCache().hbaseHits.getCnt());
Assert.assertEquals(2, store.backdoor().getStatsCache().totalGets.getCnt());
Assert.assertEquals(1, store.backdoor().getStatsCache().misses.getCnt());
}
@Test
public void noneWithStats() throws Exception {
String dbName = "default";
String tableName = "nws";
List<String> partVals1 = Arrays.asList("today");
List<String> partVals2 = Arrays.asList("yesterday");
long now = System.currentTimeMillis();
List<FieldSchema> cols = new ArrayList<>();
cols.add(new FieldSchema("col1", "boolean", "nocomment"));
SerDeInfo serde = new SerDeInfo("serde", "seriallib", null);
StorageDescriptor sd = new StorageDescriptor(cols, "file:/tmp", "input", "output", false, 0,
serde, null, null, Collections.<String, String>emptyMap());
List<FieldSchema> partCols = new ArrayList<>();
partCols.add(new FieldSchema("ds", "string", ""));
Table table = new Table(tableName, dbName, "me", (int)now, (int)now, 0, sd, partCols,
Collections.<String, String>emptyMap(), null, null, null);
store.createTable(table);
for (List<String> partVals : Arrays.asList(partVals1, partVals2)) {
StorageDescriptor psd = new StorageDescriptor(sd);
psd.setLocation("file:/tmp/default/nws/ds=" + partVals.get(0));
Partition part = new Partition(partVals, dbName, tableName, (int) now, (int) now, psd,
Collections.<String, String>emptyMap());
store.addPartition(part);
}
Checker statChecker = new Checker() {
@Override
public void checkStats(AggrStats aggrStats) throws Exception {
Assert.assertEquals(0, aggrStats.getPartsFound());
}
};
AggrStats aggrStats = store.get_aggr_stats_for(dbName, tableName,
Arrays.asList("ds=today", "ds=yesterday"), Arrays.asList("col1"));
statChecker.checkStats(aggrStats);
}
@Test
public void someNonexistentPartitions() throws Exception {
String dbName = "default";
String tableName = "snp";
List<String> partVals1 = Arrays.asList("today");
List<String> partVals2 = Arrays.asList("yesterday");
long now = System.currentTimeMillis();
List<FieldSchema> cols = new ArrayList<>();
cols.add(new FieldSchema("col1", "boolean", "nocomment"));
SerDeInfo serde = new SerDeInfo("serde", "seriallib", null);
StorageDescriptor sd = new StorageDescriptor(cols, "file:/tmp", "input", "output", false, 0,
serde, null, null, Collections.<String, String>emptyMap());
List<FieldSchema> partCols = new ArrayList<>();
partCols.add(new FieldSchema("ds", "string", ""));
Table table = new Table(tableName, dbName, "me", (int)now, (int)now, 0, sd, partCols,
Collections.<String, String>emptyMap(), null, null, null);
store.createTable(table);
StorageDescriptor psd = new StorageDescriptor(sd);
psd.setLocation("file:/tmp/default/hit/ds=" + partVals1.get(0));
Partition part = new Partition(partVals1, dbName, tableName, (int) now, (int) now, psd,
Collections.<String, String>emptyMap());
store.addPartition(part);
ColumnStatistics cs = new ColumnStatistics();
ColumnStatisticsDesc desc = new ColumnStatisticsDesc(false, dbName, tableName);
desc.setLastAnalyzed(now);
desc.setPartName("ds=" + partVals1.get(0));
cs.setStatsDesc(desc);
ColumnStatisticsObj obj = new ColumnStatisticsObj();
obj.setColName("col1");
obj.setColType("double");
ColumnStatisticsData data = new ColumnStatisticsData();
DoubleColumnStatsData dcsd = new DoubleColumnStatsData();
dcsd.setHighValue(1000.2342343);
dcsd.setLowValue(-20.1234213423);
dcsd.setNumNulls(30);
dcsd.setNumDVs(12342);
data.setDoubleStats(dcsd);
obj.setStatsData(data);
cs.addToStatsObj(obj);
store.updatePartitionColumnStatistics(cs, partVals1);
Checker statChecker = new Checker() {
@Override
public void checkStats(AggrStats aggrStats) throws Exception {
Assert.assertEquals(1, aggrStats.getPartsFound());
Assert.assertEquals(1, aggrStats.getColStatsSize());
ColumnStatisticsObj cso = aggrStats.getColStats().get(0);
Assert.assertEquals("col1", cso.getColName());
Assert.assertEquals("double", cso.getColType());
DoubleColumnStatsData dcsd = cso.getStatsData().getDoubleStats();
Assert.assertEquals(1000.23, dcsd.getHighValue(), 0.01);
Assert.assertEquals(-20.12, dcsd.getLowValue(), 0.01);
Assert.assertEquals(30, dcsd.getNumNulls());
Assert.assertEquals(12342, dcsd.getNumDVs());
}
};
AggrStats aggrStats = store.get_aggr_stats_for(dbName, tableName,
Arrays.asList("ds=today", "ds=yesterday"), Arrays.asList("col1"));
statChecker.checkStats(aggrStats);
// Check that we had to build it from the stats
Assert.assertEquals(0, store.backdoor().getStatsCache().hbaseHits.getCnt());
Assert.assertEquals(1, store.backdoor().getStatsCache().totalGets.getCnt());
Assert.assertEquals(1, store.backdoor().getStatsCache().misses.getCnt());
// Call again, this time it should come from memory. Also, reverse the name order this time
// to assure that we still hit.
aggrStats = store.get_aggr_stats_for(dbName, tableName,
Arrays.asList("ds=yesterday", "ds=today"), Arrays.asList("col1"));
statChecker.checkStats(aggrStats);
Assert.assertEquals(0, store.backdoor().getStatsCache().hbaseHits.getCnt());
Assert.assertEquals(2, store.backdoor().getStatsCache().totalGets.getCnt());
Assert.assertEquals(1, store.backdoor().getStatsCache().misses.getCnt());
}
@Test
public void nonexistentPartitions() throws Exception {
String dbName = "default";
String tableName = "nep";
List<String> partVals1 = Arrays.asList("today");
List<String> partVals2 = Arrays.asList("yesterday");
long now = System.currentTimeMillis();
List<FieldSchema> cols = new ArrayList<>();
cols.add(new FieldSchema("col1", "boolean", "nocomment"));
SerDeInfo serde = new SerDeInfo("serde", "seriallib", null);
StorageDescriptor sd = new StorageDescriptor(cols, "file:/tmp", "input", "output", false, 0,
serde, null, null, Collections.<String, String>emptyMap());
List<FieldSchema> partCols = new ArrayList<>();
partCols.add(new FieldSchema("ds", "string", ""));
Table table = new Table(tableName, dbName, "me", (int)now, (int)now, 0, sd, partCols,
Collections.<String, String>emptyMap(), null, null, null);
store.createTable(table);
Checker statChecker = new Checker() {
@Override
public void checkStats(AggrStats aggrStats) throws Exception {
Assert.assertEquals(0, aggrStats.getPartsFound());
}
};
AggrStats aggrStats = store.get_aggr_stats_for(dbName, tableName,
Arrays.asList("ds=today", "ds=yesterday"), Arrays.asList("col1"));
statChecker.checkStats(aggrStats);
// Check that we had to build it from the stats
Assert.assertEquals(0, store.backdoor().getStatsCache().hbaseHits.getCnt());
Assert.assertEquals(1, store.backdoor().getStatsCache().totalGets.getCnt());
Assert.assertEquals(1, store.backdoor().getStatsCache().misses.getCnt());
}
// TODO test invalidation
}