/* 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,
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* OTHER DEALINGS IN THE SOFTWARE.
*/
package txnIdSelfCheck;
import java.io.InterruptedIOException;
import java.util.Random;
import java.util.concurrent.Semaphore;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicLong;
import org.voltdb.ClientResponseImpl;
import org.voltdb.VoltProcedure.VoltAbortException;
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 txnIdSelfCheck.procedures.UpdateBaseProc;
public class ClientThread extends BenchmarkThread {
static enum Type {
PARTITIONED_SP, PARTITIONED_MP, REPLICATED, HYBRID, ADHOC_MP;
/**
* Use modulo so the same CID will run the same code
* across client process lifetimes.
*/
static Type typeFromId(float mpRatio, boolean allowInProcAdhoc) {
if (rn.nextDouble() < mpRatio) {
int r = rn.nextInt(19);
if (allowInProcAdhoc && (r < 1)) return ADHOC_MP; // 0% or ~5% of MP workload
if (r < 7) return PARTITIONED_MP; // ~33% or 38%
if (r < 13) return REPLICATED; // ~33%
if (r < 19) return HYBRID; // ~33%
}
return PARTITIONED_SP;
}
}
final Client m_client;
final byte m_cid;
long m_nextRid;
final Type m_type;
final TxnId2PayloadProcessor m_processor;
final AtomicBoolean m_shouldContinue = new AtomicBoolean(true);
final AtomicLong m_txnsRun;
static Random rn = new Random(31); // deterministic sequence
final Random m_random = new Random();
final Semaphore m_permits;
ClientThread(byte cid, AtomicLong txnsRun, Client client, TxnId2PayloadProcessor processor, Semaphore permits,
boolean allowInProcAdhoc, float mpRatio)
throws Exception
{
setName("ClientThread(CID=" + String.valueOf(cid) + ")");
m_type = Type.typeFromId(mpRatio, allowInProcAdhoc);
m_cid = cid;
m_client = client;
m_processor = processor;
m_txnsRun = txnsRun;
m_permits = permits;
log.info("ClientThread(CID=" + String.valueOf(cid) + ") " + m_type.toString());
String sql1 = String.format("select * from partitioned where cid = %d order by rid desc limit 1", cid);
String sql2 = String.format("select * from replicated where cid = %d order by rid desc limit 1", cid);
VoltTable t1;
VoltTable t2;
while (true) {
try {
t1 = client.callProcedure("@AdHoc", sql1).getResults()[0];
t2 = client.callProcedure("@AdHoc", sql2).getResults()[0];
// init the di mension table to have one record for each cid.
client.callProcedure("PopulateDimension", cid);
break;
}
catch (Exception e) {
log.warn("ClientThread threw exception in initialization, will retry", e);
try { Thread.sleep(3000); } catch (Exception e2) {}
}
}
long pNextRid = (t1.getRowCount() == 0) ? 1 : t1.fetchRow(0).getLong("rid") + 1;
long rNextRid = (t2.getRowCount() == 0) ? 1 : t2.fetchRow(0).getLong("rid") + 1;
m_nextRid = pNextRid > rNextRid ? pNextRid : rNextRid; // max
}
class UserProcCallException extends Exception {
private static final long serialVersionUID = 1L;
public ClientResponseImpl cri = null;
UserProcCallException(ClientResponse cr) {
cri = (ClientResponseImpl) cr;
}
}
void runOne() throws Exception {
// 1/10th of txns roll back
byte shouldRollback = (byte) (m_random.nextInt(10) == 0 ? 1 : 0);
// if we need to disable rollbacks use this:
// byte shouldRollback = (byte) 0;
try {
String procName = null;
int expectedTables = 5;
switch (m_type) {
case PARTITIONED_SP:
procName = "UpdatePartitionedSP";
break;
case PARTITIONED_MP:
procName = "UpdatePartitionedMP";
expectedTables = 6;
break;
case REPLICATED:
procName = "UpdateReplicatedMP";
expectedTables = 6;
break;
case HYBRID:
procName = "UpdateBothMP";
expectedTables = 6;
break;
case ADHOC_MP:
procName = "UpdateReplicatedMPInProcAdHoc";
expectedTables = 6;
break;
}
byte[] payload = m_processor.generateForStore().getStoreValue();
ClientResponse response;
try {
response = m_client.callProcedure(procName,
m_cid,
m_nextRid,
payload,
shouldRollback);
} catch (Exception e) {
if (shouldRollback == 0) {
log.warn("ClientThread threw after " + m_txnsRun.get() +
" calls while calling procedure: " + procName +
" with args: cid: " + m_cid + ", nextRid: " + m_nextRid +
", payload: " + payload +
", shouldRollback: " + shouldRollback);
}
throw e;
}
// fake a proc call exception if we think one should be thrown
if (response.getStatus() != ClientResponse.SUCCESS) {
throw new UserProcCallException(response);
}
VoltTable[] results = response.getResults();
m_txnsRun.incrementAndGet();
if (results.length != expectedTables) {
hardStop(String.format(
"Client cid %d procedure %s returned %d results instead of %d",
m_cid, procName, results.length, expectedTables), response);
}
VoltTable data = results[3];
VoltTable view = results[4];
try {
UpdateBaseProc.validateCIDData(data, view, "ClientThread:" + m_cid);
}
catch (VoltAbortException vae) {
log.error("validateCIDData failed on: " + procName + ", shouldRollback: " +
shouldRollback + " data: " + data);
throw vae;
}
}
finally {
// ensure rid is incremented (if not rolled back intentionally)
if (shouldRollback == 0) {
m_nextRid++;
}
}
}
void shutdown() {
m_shouldContinue.set(false);
this.interrupt();
}
void handleException(ClientResponseImpl cri, Exception e) {
// this is not an error
if ((cri.getStatus() == ClientResponse.USER_ABORT) &&
cri.getStatusString().contains("EXPECTED ROLLBACK")) {
return;
}
// this implies bad data and is fatal
if ((cri.getStatus() == ClientResponse.GRACEFUL_FAILURE) ||
(cri.getStatus() == ClientResponse.USER_ABORT)) {
hardStop("ClientThread had a proc-call exception that indicated bad data", cri);
}
// other proc call exceptions are logged, but don't stop the thread
else {
log.warn("ClientThread had a proc-call exception that didn't indicate bad data: " + e.getMessage());
log.warn(cri.toJSONString());
// take a breather to avoid slamming the log (stay paused if no connections)
do {
try { Thread.sleep(3000); } catch (Exception e2) {} // sleep for 3s
// bail on wakeup if we're supposed to bail
if (!m_shouldContinue.get()) {
return;
}
}
while (m_client.getConnectedHostList().size() == 0);
}
}
@Override
public void run() {
while (m_shouldContinue.get()) {
try {
m_permits.acquire();
runOne();
}
catch (NoConnectionsException e) {
log.error("ClientThread got NoConnectionsException on proc call. Will sleep.");
// take a breather to avoid slamming the log (stay paused if no connections)
do {
try { Thread.sleep(3000); } catch (Exception e2) {} // sleep for 3s
// bail on wakeup if we're supposed to bail
if (!m_shouldContinue.get()) {
return;
}
}
while (m_client.getConnectedHostList().size() == 0);
}
catch (ProcCallException e) {
ClientResponseImpl cri = (ClientResponseImpl) e.getClientResponse();
handleException(cri, e);
}
catch (UserProcCallException e) {
ClientResponseImpl cri = e.cri;
handleException(cri, e);
}
catch (InterruptedException e) {
// just need to fall through and get out
}
catch (InterruptedIOException e) {
// just need to fall through and get out
}
catch (Exception e) {
hardStop("ClientThread had a non proc-call exception", e);
}
}
}
}