/* This file is part of VoltDB.
* Copyright (C) 2008-2010 VoltDB L.L.C.
*
* 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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*/
package org.voltdb.benchmark.bingo;
import java.io.IOException;
import java.util.ArrayDeque;
import java.util.Random;
import org.apache.log4j.Logger;
import org.voltdb.benchmark.Verification;
import org.voltdb.benchmark.Verification.Expression;
import org.voltdb.client.ClientResponse;
import org.voltdb.client.NullCallback;
import org.voltdb.client.ProcedureCallback;
import org.voltdb.types.ExpressionType;
import edu.brown.api.BenchmarkComponent;
import edu.brown.hstore.Hstoreservice.Status;
import edu.brown.hstore.conf.HStoreConf;
import edu.brown.logging.LoggerUtil.LoggerBoolean;
public class BingoClient extends BenchmarkComponent {
private static final Logger LOG = Logger.getLogger(BingoClient.class);
private static final LoggerBoolean debug = new LoggerBoolean();
public static enum Transaction {
CREATE("Create Tournament"),
DELETE("Delete Tournament"),
PLAY("Play Round"),
GETAVGPOT("Get Average Pot Value"),
ERROR("Client error executing transaction");
private Transaction(String displayName) { this.displayName = displayName; }
public final String displayName;
}
private final Random random = new Random();
// an array of tournaments with a randomized starting round to get better
// tournament progress distribution at startup. The result of this is that
// the tournaments at startup run for fewer rounds (and so do smaller deletes).
// All subsequent tournaments, though, run the full number of rounds. Without
// something like this, tournament creations and deletions are clumpy.
protected class Tourney {
int tid;
boolean initialized = false;
int round = 0;
private class Callback implements ProcedureCallback {
private final Transaction t;
public Callback(Transaction t) {
this.t = t;
}
@Override
public void clientCallback(ClientResponse clientResponse) {
final Status status = clientResponse.getStatus();
if (status != Status.OK) {
if (status == Status.ABORT_CONNECTION_LOST){
/*
* Status of the last transaction involving the tournament
* is unknown it could have committed. Recovery code would
* go here.
*/
return;
}
if (clientResponse.getException() != null) {
clientResponse.getException().printStackTrace();
}
if (debug.val && clientResponse.getStatusString() != null) {
LOG.warn(clientResponse.getStatusString());
}
return;
}
synchronized (tournaments) {
tournaments.offer(Tourney.this);
tournaments.notifyAll();
}
incrementTransactionCounter(clientResponse, t.ordinal());
}
}
}
private final ArrayDeque<Tourney> tournaments = new ArrayDeque<Tourney>();
public static void main(String[] args) {
BenchmarkComponent.main(BingoClient.class, args, false);
}
public BingoClient(String args[]) {
super(args);
Random r = new Random();
// Load our good old friend Mister HStoreConf
HStoreConf hstore_conf = this.getHStoreConf();
final int num_tournaments = (int)Math.round(BingoConstants.maxTournaments * hstore_conf.client.scalefactor);
final int num_clients = this.getNumClients();
final int client_id = this.getClientId();
for (int i=1; i <= num_tournaments; i++) {
if (i % num_clients != client_id) continue;
final Tourney t = new Tourney();
t.tid = 10000 + i; // | (getClientId() << 24));
t.initialized = false;
t.round = Math.abs(r.nextInt() % BingoConstants.maxRounds);
tournaments.offer(t);
}
// Set up checking
buildConstraints();
}
@Override
public String[] getTransactionDisplayNames() {
String names[] = new String[Transaction.values().length];
int ii = 0;
for (Transaction transaction : Transaction.values()) {
names[ii++] = transaction.displayName;
}
return names;
}
/**
* Delete all games that may have existed previously
* @return
*/
protected boolean cleanupLastRun() {
try {
for (Tourney t : tournaments) {
this.getClientHandle().callProcedure(
new NullCallback(),
"DeleteTournament",
(long)t.tid);
}
this.getClientHandle().drain();
} catch (Exception e) {
e.printStackTrace();
return false;
}
return true;
}
protected void buildConstraints() {
Expression constraint = null;
// PlayRound table 0: 0 <= C4 < 100 (max round is 100)
constraint = Verification.inRange("C4", 0L, 99L);
addConstraint("PlayRound", 0, constraint);
// PlayRound table 1: 0 <= R_POT < 900 (because the max round is 100, we
// only add at most 9 each time)
Expression r_pot = Verification.inRange("R_POT", 0, 899);
Expression t_id = Verification.compareWithConstant(ExpressionType.COMPARE_GREATERTHANOREQUALTO,
"T_ID", 0);
Expression b_id = Verification.compareWithConstant(ExpressionType.COMPARE_GREATERTHANOREQUALTO,
"B_ID", 0);
Expression r_id = Verification.compareWithConstant(ExpressionType.COMPARE_GREATERTHANOREQUALTO,
"R_ID", 0);
constraint = Verification.conjunction(ExpressionType.CONJUNCTION_AND,
r_pot, t_id, b_id, r_id);
addConstraint("PlayRound", 1, constraint);
// For the tables
addConstraint("T", 0, t_id);
constraint = Verification.conjunction(ExpressionType.CONJUNCTION_AND,
t_id, b_id);
addConstraint("B", 0, constraint);
constraint = Verification.conjunction(ExpressionType.CONJUNCTION_AND,
r_pot, t_id, r_id);
addConstraint("R", 0, constraint);
}
@Override
public void runLoop() {
if (!cleanupLastRun()) {
return;
}
try {
while (true) {
invokeBingo();
this.getClientHandle().backpressureBarrier();
}
} catch (IOException e) {
/*
* Client has no clean mechanism for terminating with the DB.
*/
return;
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
}
@Override
protected boolean runOnce() throws IOException {
return invokeBingo();
}
private boolean invokeBingo() throws IOException {
// which Transaction enum value to execute.
Transaction proc = Transaction.ERROR;
boolean queued = false;
Tourney t;
synchronized (tournaments) {
while (true) {
t = tournaments.poll();
if (t == null) {
return false;
}
double prob = random.nextDouble();
if (prob > .7) {
break;
} else {
tournaments.offer(t);
}
}
}
// tournament id does not exist, CREATE
if (t.initialized == false) {
final Tourney tourney = t;
proc = Transaction.CREATE;
Tourney.Callback callback = t.new Callback(proc) {
@Override
public void clientCallback(ClientResponse clientResponse) {
if (clientResponse.getStatus() == Status.OK) {
tourney.initialized = true;
}
super.clientCallback(clientResponse);
}
};
if (debug.val)
LOG.debug("[" + getClientId() + "] CREATE TOURNEY: " + t.tid);
queued = this.getClientHandle().callProcedure(
callback,
"CreateTournament",
(long)t.tid,
(long)BingoConstants.boardsPerTournament);
}
// tournament is over, DELETE, mark uninitialized and at round 0.
else if (!(t.round < BingoConstants.maxRounds)) {
final Tourney tourney = t;
proc = Transaction.DELETE;
Tourney.Callback callback = t.new Callback(proc) {
@Override
public void clientCallback(ClientResponse clientResponse) {
if (clientResponse.getStatus() == Status.OK) {
tourney.initialized = false;
tourney.round = 0;
}
super.clientCallback(clientResponse);
}
};
queued = this.getClientHandle().callProcedure(
callback,
"DeleteTournament",
(long)t.tid);
}
// increment round and PLAY
else {
final Tourney tourney = t;
//Occasionally instead of playing a round check the avg pot value
if (random.nextInt(BingoConstants.GETAVGPOT_MAX) > BingoConstants.GETAVGPOT_MIN) {
proc = Transaction.GETAVGPOT;
/*
* Retrieve 9 more tournaments to be included in the average
*/
final long tourneyIds[] = new long[10];
final Tourney tourneys[] = new Tourney[9];
synchronized (tournaments) {
for (int ii = 0; ii < 9; ii++) {
while (true) {
tourneys[ii] = tournaments.poll();
if (tourneys[ii] != null) {
break;
}
try {
tournaments.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
/*
* Create an array of the ids to be sent with the invocation
* and store the Tourneys themselves in the callback
* so they can be placed back into the queue upon completion
*/
tourneyIds[0] = t.tid;
for (int ii = 1; ii < 10; ii++) {
tourneyIds[ii] = tourneys[ii - 1].tid;
}
Tourney.Callback callback = t.new Callback(proc) {
@Override
public void clientCallback(ClientResponse clientResponse) {
synchronized (tournaments) {
for (int ii = 0; ii < tourneys.length; ii++) {
tournaments.offer(tourneys[ii]);
}
super.clientCallback(clientResponse);
}
}
};
queued = this.getClientHandle().callProcedure(
callback,
"GetAvgPot", tourneyIds);
} else {
proc = Transaction.PLAY;
Tourney.Callback callback = t.new Callback(proc) {
@Override
public void clientCallback(ClientResponse clientResponse) {
if (clientResponse.getStatus() == Status.OK) {
tourney.round++;
}
if (checkTransaction("PlayRound", clientResponse, false, false)) {
super.clientCallback(clientResponse);
}
}
};
queued = this.getClientHandle().callProcedure(
callback,
"PlayRound", (long)t.tid,
(long)t.round,
"A7 Again!?");
}
}
/*
* It wasn't successfully queued so put it back in the list of eligible tournaments
*/
if (!queued) {
tournaments.offer(t);
}
return queued;
}
}