Vinayak Hegde created HBASE-29219:
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Summary: Ignore Empty WAL Files While Consuming Backed-Up WAL Files
Key: HBASE-29219
URL: https://issues.apache.org/jira/browse/HBASE-29219
Project: HBase
Issue Type: Task
Components: backup&restore
Reporter: Vinayak Hegde
Currently, {{ContinuousBackupReplicationEndpoint}} creates WAL files in the
backup location and continuously writes incoming WAL entries.
These WAL files are consumed during *Point-In-Time Recovery (PITR)* and
{*}incremental backups{*}. However, an edge case may arise:
If we attempt to access a WAL file that is currently {*}empty{*}—for instance,
when the *Continuous Backup Replication Endpoint* closes a file, reopens a new
one for writing, but has not yet written any data—an exception occurs. The WAL
file reader throws an error indicating that the {*}WAL PB magic is missing{*}.
To handle this, we need to *skip/ignore empty WAL files* and continue
processing the remaining files without interruption.
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