Ujjawal Kumar created HBASE-28268:
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Summary: Add option to skip wal while using TableOutputFormat
Key: HBASE-28268
URL: https://issues.apache.org/jira/browse/HBASE-28268
Project: HBase
Issue Type: Improvement
Components: mapreduce
Reporter: Ujjawal Kumar
If we have replication setup between clusters A <-> B, during production
incidents like where HFiles get corrupted (e.g. via hdfs missing blocks) on
cluster A, we can use CopyTable job to copy the data from B
In those cases considering the data is being copied from B to A via CopyTable,
it doesn't make sense to write to WALs on A using TableOutputFormat (since the
mutations being copied already exist on B).
We can add a config to customise durability
([https://github.com/apache/hbase/blob/master/hbase-client/src/main/java/org/apache/hadoop/hbase/client/Durability.java)]
within TableOutputFormat so that an operator can use it to skip WAL writes
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