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Type: Bug
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Resolution: Duplicate
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Priority: Major - P3
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None
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Affects Version/s: None
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Component/s: Replication
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None
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Fully Compatible
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ALL
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0
_mutex should be locked before reading _canAcceptNonLocalWrites.
bool ReplicationCoordinatorImpl::canAcceptWritesForDatabase(StringData dbName) { // _canAcceptNonLocalWrites is always true for standalone nodes, always false for nodes // started with --slave, and adjusted based on primary+drain state in replica sets. // // That is, stand-alone nodes, non-slave nodes and drained replica set primaries can always // accept writes. Similarly, writes are always permitted to the "local" database. Finally, // in the event that a node is started with --slave and --master, we allow writes unless the // master/slave system has set the replAllDead flag. if (_canAcceptNonLocalWrites) { return true; } if (dbName == kLocalDB) { return true; } return !replAllDead && _settings.isMaster(); }
- duplicates
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SERVER-27892 Clarify locking rules for _canAcceptNonLocalWrites and _canServeNonLocalReads
- Closed