/* This file is part of VoltDB.
* Copyright (C) 2008-2017 VoltDB Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* 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
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
package txnIdSelfCheck;
import java.util.Date;
import java.util.Random;
import java.util.concurrent.Semaphore;
import java.util.concurrent.atomic.AtomicBoolean;
import org.voltdb.ClientResponseImpl;
import org.voltdb.client.Client;
import org.voltdb.client.ClientResponse;
import org.voltdb.client.NoConnectionsException;
import org.voltdb.client.ProcedureCallback;
public class AdHocMayhemThread extends BenchmarkThread {
Random r = new Random(0);
long counter = 0;
final Client client;
final float mpRatio;
final AtomicBoolean m_shouldContinue = new AtomicBoolean(true);
final AtomicBoolean m_needsBlock = new AtomicBoolean(false);
final Semaphore txnsOutstanding = new Semaphore(100);
final Semaphore m_permits;
public AdHocMayhemThread(Client client, float mpRatio, Semaphore permits) {
setName("AdHocMayhemThread");
this.client = client;
this.mpRatio = mpRatio;
this.m_permits = permits;
}
private String nextAdHoc() {
// mpRatio % of all adhocs are MP
boolean replicated = (counter % 100) < (this.mpRatio * 100.);
boolean batched = (counter % 11) == 0 && this.mpRatio > 0.0;
// batched statements can go rw, wr or ww
long rwMix = counter % 3;
String sql = "";
if (batched) {
if (rwMix == 0) {
sql += nextWriteAdHocStmt(replicated);
}
if (rwMix == 1) {
sql += nextReadAdHocStmt(replicated);
}
}
sql += nextWriteAdHocStmt(replicated);
if (batched) {
if (rwMix == 2) {
sql += nextReadAdHocStmt(replicated);
}
}
counter++;
return sql;
}
private String nextWriteAdHocStmt(boolean replicated) {
String sql = "update";
sql += replicated ? " adhocr " : " adhocp";
sql += " set";
sql += " ts = " + new Date().getTime() + ",";
sql += " inc = inc + 1,";
sql += " jmp = jmp + " + r.nextInt(10);
if (!replicated) {
sql += " where id = " + r.nextInt(10);
}
sql += ";";
return sql;
}
private String nextReadAdHocStmt(boolean replicated) {
String sql = "select * from";
sql += replicated ? " adhocr " : " adhocp";
if (!replicated) {
sql += " where id = " + r.nextInt(10);
}
sql += " order by id limit 1;";
return sql;
}
void shutdown() {
m_shouldContinue.set(false);
this.interrupt();
}
class AdHocCallback implements ProcedureCallback {
@Override
public void clientCallback(ClientResponse clientResponse) throws Exception {
txnsOutstanding.release();
if (clientResponse.getStatus() != ClientResponse.SUCCESS) {
log.warn("Non success in ProcCallback for AdHocMayhemThread. Will sleep.");
log.warn(((ClientResponseImpl)clientResponse).toJSONString());
m_needsBlock.set(true);
}
else
Benchmark.txnCount.incrementAndGet();
}
}
@Override
public void run() {
try {
TxnId2Utils.doProcCall(client, "SetupAdHocTables");
} catch (Exception e) {
hardStop("SetupAdHocTables failed in AdHocMayhemThread. Will exit.", e);
}
while (m_shouldContinue.get()) {
// if a transaction callback has failed, sleep for 3 seconds
// if not, connected, continue to sleep
if (m_needsBlock.get()) {
do {
try { Thread.sleep(3000); } catch (Exception e) {} // sleep for 3s
// bail on wakeup if we're supposed to bail
if (!m_shouldContinue.get()) {
return;
}
}
while (client.getConnectedHostList().size() == 0);
m_needsBlock.set(false);
}
// get a permit to send a transaction
try {
txnsOutstanding.acquire();
} catch (InterruptedException e) {
log.error("AdHocMayhemThread interrupted while waiting for permit. Will end AdHoc work.", e);
return;
}
// call a transaction
String sql = nextAdHoc();
try {
m_permits.acquire();
client.callProcedure(new AdHocCallback(), "@AdHoc", sql);
}
catch (NoConnectionsException e) {
log.error("AdHocMayhemThread got NoConnectionsException on proc call. Will sleep.");
m_needsBlock.set(true);
}
catch (Exception e) {
hardStop("AdHocMayhemThread failed to run an AdHoc statement. Will exit.", e);
}
}
}
}