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reduce timeout for write-lock (#8034)

This commit is contained in:
Simon 2019-01-28 09:21:30 +01:00 committed by Jan
parent 33220fb589
commit b1dc8fb804
1 changed files with 7 additions and 9 deletions
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18
arangod/RocksDBEngine/RocksDBReplicationContext.cpp
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@ -154,22 +154,20 @@ std::tuple<Result, TRI_voc_cid_t, uint64_t> RocksDBReplicationContext::bindColle
bool isNumberDocsExclusive = false;
auto* rcoll = static_cast<RocksDBCollection*>(logical->getPhysical());
if (_snapshot == nullptr) {
// only DBServers require a corrected document count
const double to = ServerState::instance()->isDBServer() ? 10.0 : 1.0;
auto lockGuard = scopeGuard([rcoll] { rcoll->unlockWrite(); });
if (rcoll->lockWrite(to) == TRI_ERROR_NO_ERROR) {
// fetch number docs and snapshot under exclusive lock
// this should enable us to correct the count later
auto lockGuard = scopeGuard([rcoll] { rcoll->unlockWrite(); });
int res = rcoll->lockWrite(transaction::Options::defaultLockTimeout);
if (res != TRI_ERROR_NO_ERROR) {
lockGuard.cancel();
return std::make_tuple(res, 0, 0);
}
numberDocuments = rcoll->numberDocuments();
isNumberDocsExclusive = true;
} else {
lockGuard.cancel();
}
numberDocuments = rcoll->numberDocuments();
lazyCreateSnapshot();
lockGuard.fire(); // release exclusive lock
} else { // fetch non-exclusive
numberDocuments = rcoll->numberDocuments();
lazyCreateSnapshot();
}
TRI_ASSERT(_snapshot != nullptr);