Sanjeet Malhotra created PHOENIX-7503:
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Summary: Enable compaction during flushes
Key: PHOENIX-7503
URL: https://issues.apache.org/jira/browse/PHOENIX-7503
Project: Phoenix
Issue Type: Bug
Affects Versions: 5.2.1, 5.3.0
Reporter: Sanjeet Malhotra
PHOENIX-7402 removed compaction during flushes by removing override for
preFlush hook. The reason for removing the compaction from running during
flushes was retrieval of max lookback during preFlush hook execution. Accessing
SYSCAT from preFlush hook was problematic. Alternative is we can store max
lookback as a table attribute in HBase table and access that from inside
preFlush hook.
In our production, we saw an instance where rows in a table are getting updated
very frequently and the rows were being updated partially so, due to lack of
compaction during flushes a lot of unwanted versions are being retained during
flushes and till first minor compaction.
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