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FastRestoreApplier:Add warning when too many clears in a txn

This commit is contained in:
Meng Xu 2020-05-05 09:00:02 -07:00
parent 62de02fb2c
commit 759820cc61
1 changed files with 8 additions and 1 deletions
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9
fdbserver/RestoreApplier.actor.cpp
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@ -169,7 +169,7 @@ ACTOR static Future<Void> applyClearRangeMutations(Standalone<VectorRef<KeyRange
Database cx, UID applierID, int batchIndex) {
state Reference<ReadYourWritesTransaction> tr(new ReadYourWritesTransaction(cx));
state int count = 0;
state double size = 0;
state double numOps = 0;
wait(delay(delayTime + deterministicRandom()->random01() * delayTime));
TraceEvent("FastRestoreApplierClearRangeMutationsStart", applierID)
.detail("BatchIndex", batchIndex)
@ -184,6 +184,13 @@ ACTOR static Future<Void> applyClearRangeMutations(Standalone<VectorRef<KeyRange
debugFRMutation("FastRestoreApplierApplyClearRangeMutation", 0,
MutationRef(MutationRef::ClearRange, range.begin, range.end));
tr->clear(range);
++numOps;
if (numOps > 10000) {
TraceEvent(SevWarnAlways, "FastRestoreApplierClearRangeMutationsTooManyClearsInTxn")
.detail("Clears", numOps)
.detail("Ranges", ranges.size())
.suppressFor(10.0);
}
}
wait(tr->commit());
break;