/* This file is part of VoltDB.
* Copyright (C) 2008-2017 VoltDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with VoltDB. If not, see <http://www.gnu.org/licenses/>.
*/
package org.voltdb.iv2;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.voltcore.logging.Level;
import org.voltcore.messaging.Mailbox;
import org.voltcore.messaging.TransactionInfoBaseMessage;
import org.voltcore.utils.CoreUtils;
import org.voltdb.rejoin.TaskLog;
import org.voltdb.SiteProcedureConnection;
import org.voltdb.utils.LogKeys;
/**
* Implements the Single-partition everywhere procedure ProcedureTask.
* Creates one SP transaction per partition. These are produced on
* the MPI so that all involved SPs have the same happens-before
* relationship with concurrent MPs.
*/
public class EveryPartitionTask extends TransactionTask
{
final List<Long> m_initiatorHSIds = new ArrayList<Long>();
final TransactionInfoBaseMessage m_initiationMsg;
final Mailbox m_mailbox;
EveryPartitionTask(Mailbox mailbox, TransactionTaskQueue queue,
TransactionInfoBaseMessage msg, List<Long> pInitiators)
{
super(new EveryPartTransactionState(msg), queue);
m_initiationMsg = msg;
m_initiatorHSIds.addAll(pInitiators);
m_mailbox = mailbox;
}
/** Run is invoked by a run-loop to execute this transaction. */
@Override
public void run(SiteProcedureConnection siteConnection)
{
hostLog.debug("STARTING: " + this);
m_mailbox.send(com.google_voltpatches.common.primitives.Longs.toArray(m_initiatorHSIds), m_initiationMsg);
m_txnState.setDone();
m_queue.flush(getTxnId());
execLog.l7dlog( Level.TRACE, LogKeys.org_voltdb_ExecutionSite_SendingCompletedWUToDtxn.name(), null);
hostLog.debug("COMPLETE: " + this);
}
@Override
public void runForRejoin(SiteProcedureConnection siteConnection, TaskLog taskLog)
throws IOException
{
throw new RuntimeException("MPI asked to execute everysite proc. while rejoining.");
}
@Override
public void runFromTaskLog(SiteProcedureConnection siteConnection)
{
throw new RuntimeException("MPI asked to execute everysite proc from task log while rejoining.");
}
/**
* Update the list of partition masters in the event of a failure/promotion.
* Currently only thread-"safe" by virtue of only calling this on
* ProcedureTasks which are not at the head of the MPI's TransactionTaskQueue.
*/
public void updateMasters(List<Long> masters)
{
m_initiatorHSIds.clear();
m_initiatorHSIds.addAll(masters);
}
@Override
public String toString()
{
StringBuilder sb = new StringBuilder();
sb.append("EveryPartitionTask:");
sb.append(" TXN ID: ").append(getTxnId());
sb.append(" SP HANDLE ID: ").append(getSpHandle());
sb.append(" ON HSID: ").append(CoreUtils.hsIdToString(m_mailbox.getHSId()));
return sb.toString();
}
}