/* This file is part of VoltDB.
* Copyright (C) 2008-2017 VoltDB Inc.
*
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* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
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* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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package txnIdSelfCheck;
import java.io.IOException;
import java.io.InterruptedIOException;
import java.util.Random;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.Semaphore;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import org.voltdb.ClientResponseImpl;
import org.voltdb.OperationMode;
import org.voltdb.SQLStmt;
import org.voltdb.VoltDB;
import org.voltdb.VoltTable;
import org.voltdb.client.Client;
import org.voltdb.client.ClientResponse;
import org.voltdb.client.NoConnectionsException;
import org.voltdb.client.ProcCallException;
import org.voltdb.client.ProcedureCallback;
public class CappedTableLoader extends BenchmarkThread {
final Client client;
final long targetCount;
final String tableName;
final int rowSize;
final int batchSize;
final Random r = new Random(0);
final AtomicBoolean m_shouldContinue = new AtomicBoolean(true);
final Semaphore m_permits;
long insertsTried = 0;
long rowsLoaded = 0;
float mpRatio;
byte cnt = 0;
CappedTableLoader(Client client, String tableName, long targetCount, int rowSize, int batchSize, Semaphore permits, float mpRatio) {
setName("CappedTableLoader");
this.client = client;
this.tableName = tableName;
this.targetCount = targetCount;
this.rowSize = rowSize;
this.batchSize = batchSize;
m_permits = permits;
this.mpRatio = mpRatio;
// make this run more than other threads
setPriority(getPriority() + 1);
log.info("CappedTableLoader table: "+ tableName + " targetCount: " + targetCount);
}
void shutdown() {
m_shouldContinue.set(false);
this.interrupt();
}
class InsertCallback implements ProcedureCallback {
CountDownLatch latch;
InsertCallback(CountDownLatch latch) {
this.latch = latch;
}
@Override
public void clientCallback(ClientResponse clientResponse) throws Exception { // fix this
byte status = clientResponse.getStatus();
if (status == ClientResponse.GRACEFUL_FAILURE) {
// This case is what happens when the table fails to delete enough rows to make room for the next insert.
// log.info("CappedTableLoader acceptably failed to insert into " + tableName + ". ");
} else if ( status == ClientResponse.USER_ABORT) {
log.error("User abort while attempting to insert into table "+ tableName );
} else
if (status != ClientResponse.SUCCESS) {
// log what happened
log.warn("CappedTableLoader ungracefully failed to insert into table " + tableName);
log.warn(((ClientResponseImpl) clientResponse).toJSONString());
}
else {
Benchmark.txnCount.incrementAndGet();
rowsLoaded++;
}
latch.countDown();
}
}
@Override
public void run() {
byte[] data = new byte[rowSize];
byte shouldRollback = 0;
long currentRowCount = 0;
while (m_shouldContinue.get()) {
r.nextBytes(data);
try {
currentRowCount = TxnId2Utils.getRowCount(client, tableName);
} catch (Exception e) {
hardStop("getrowcount exception", e);
}
try {
// insert some batches...
int tc = batchSize * r.nextInt(99);
while ((currentRowCount < tc) && (m_shouldContinue.get())) {
CountDownLatch latch = new CountDownLatch(batchSize);
// try to insert batchSize random rows
for (int i = 0; i < batchSize; i++) {
long p = Math.abs(r.nextLong());
m_permits.acquire();
insertsTried++;
client.callProcedure(new InsertCallback(latch), tableName.toUpperCase() + "TableInsert", p, data);
}
latch.await(10, TimeUnit.SECONDS);
long nextRowCount = -1;
try {
nextRowCount = TxnId2Utils.getRowCount(client, tableName);
} catch (Exception e) {
hardStop("getrowcount exception", e);
}
// if no progress, throttle a bit
if (nextRowCount == currentRowCount) {
try { Thread.sleep(1000); } catch (Exception e2) {}
}
currentRowCount = nextRowCount;
if (exceedsCappedLimit())
hardStop("Capped table exceeds 10 rows, this shoudln't happen. Exiting. ");
}
}
catch (Exception e) {
// on exception, log and end the thread, but don't kill the process
log.warn("CappedTableLoader failed a TableInsert procedure call for table '" + tableName + "', exception msg: " + e.getMessage());
try { Thread.sleep(3000); } catch (Exception e2) { }
}
}
log.info("CappedTableLoader normal exit for table " + tableName + " rows sent: " + insertsTried + " inserted: " + rowsLoaded);
}
private boolean exceedsCappedLimit() throws NoConnectionsException, IOException, ProcCallException {
boolean ret = false;
VoltTable partitions = client.callProcedure("@GetPartitionKeys",
"INTEGER").getResults()[0];
long count = TxnId2Utils.doAdHoc(client,"SELECT COUNT(*) FROM capr;").getResults()[0].fetchRow(0).getLong(0);
if (count > 10) {
log.error("Replicated table CAPR has more rows ("+count+") than the limit set by capped collections (10)");
ret = true;
}
while (partitions.advanceRow()) {
long id = partitions.getLong(0);
long key = partitions.getLong(1);
count = client.callProcedure("CAPPCountPartitionRows",key).getResults()[0].fetchRow(0).getLong(0);
if (count > 10) {
log.error("Replicated table CAPP has more rows ("+count+") than the limit set by capped collections (10) on partition "+id);
ret = true;
}
}
return ret;
}
}