68 lines
1.8 KiB
C++
68 lines
1.8 KiB
C++
/**
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* Copyright (C) 2008 10gen Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "pch.h"
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#include "../client.h"
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#include "../../client/dbclient.h"
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#include "rs.h"
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#include "../repl.h"
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namespace mongo {
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void startSyncThread() {
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Client::initThread("rs_sync");
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theReplSet->syncThread();
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}
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void ReplSetImpl::syncTail() {
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// todo : locking...
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OplogReader r;
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// r.connect(
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}
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void ReplSetImpl::_syncThread() {
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if( isPrimary() )
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return;
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/* later, we can sync from up secondaries if we want. tbd. */
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if( currentPrimary() == 0 )
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return;
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/* do we have anything at all? */
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if( lastOpTimeWritten.isNull() ) {
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syncDoInitialSync();
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return; // _syncThread will be recalled, starts from top again in case sync failed.
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}
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/* we have some data. continue tailing. */
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syncTail();
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}
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void ReplSetImpl::syncThread() {
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while( 1 ) {
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try {
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_syncThread();
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}
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catch(DBException& e) {
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log() << "replSet syncThread: " << e.toString() << rsLog;
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sleepsecs(10);
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}
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sleepsecs(2);
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}
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}
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}
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