Bryan Beaudreault created HBASE-26874:
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Summary: VerifyReplication recompare async
Key: HBASE-26874
URL: https://issues.apache.org/jira/browse/HBASE-26874
Project: HBase
Issue Type: Improvement
Reporter: Bryan Beaudreault
VerifyReplication includes an option "sleepMsBeforeReCompare". This is useful
for helping work around replication lag. However, adding a sleep in a hadoop
job can drastically slow that job down if there is anything more than a small
number of invalid results.
We can mitigate this by doing the recompare in a separate thread. We can limit
the thread pool and fallback to doing the recompare in the main thread if the
thread pool is full. This way we offload some of the slowness but still retain
the same validation guarantees.
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