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| author | Tess Avitabile <tess.avitabile@mongodb.com> | 2018-10-08 17:11:53 -0400 |
|---|---|---|
| committer | Tess Avitabile <tess.avitabile@mongodb.com> | 2018-10-11 10:18:02 -0400 |
| commit | cc99b89e8c2ecbae3b4ae006f0a97927fe6040ce (patch) | |
| tree | e40ccb87ee101abb0d1b68aac57578a022f09aca /src/mongo/db/read_concern_mongod.cpp | |
| parent | 2f4b5918497b09a226a3ec5dcff930edd52ea1e9 (diff) | |
| download | mongo-cc99b89e8c2ecbae3b4ae006f0a97927fe6040ce.tar.gz | |
SERVER-37514 Snapshot readConcern without atClusterTime should always be speculative
Diffstat (limited to 'src/mongo/db/read_concern_mongod.cpp')
| -rw-r--r-- | src/mongo/db/read_concern_mongod.cpp | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/mongo/db/read_concern_mongod.cpp b/src/mongo/db/read_concern_mongod.cpp index 5309f3ab747..d36555ab621 100644 --- a/src/mongo/db/read_concern_mongod.cpp +++ b/src/mongo/db/read_concern_mongod.cpp @@ -211,11 +211,13 @@ MONGO_REGISTER_SHIM(waitForReadConcern) repl::ReplicationCoordinator* const replCoord = repl::ReplicationCoordinator::get(opCtx); invariant(replCoord); - // Currently speculative read concern is used only for transactions. However, speculative read - // concern is not yet supported with atClusterTime. + // Currently speculative read concern is used only for transactions (equivalently, when the read + // concern level is 'snapshot'). However, speculative read concern is not yet supported with + // atClusterTime. // // TODO SERVER-34620: Re-enable speculative behavior when "atClusterTime" is specified. - const bool speculative = txnParticipant && txnParticipant->inMultiDocumentTransaction() && + const bool speculative = + readConcernArgs.getLevel() == repl::ReadConcernLevel::kSnapshotReadConcern && !readConcernArgs.getArgsAtClusterTime(); if (readConcernArgs.getLevel() == repl::ReadConcernLevel::kLinearizableReadConcern) { |