Kodey Converse created HBASE-29831:
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Summary: Region replica's can fall behind due to a NPE during
processing
Key: HBASE-29831
URL: https://issues.apache.org/jira/browse/HBASE-29831
Project: HBase
Issue Type: Bug
Components: read replicas
Reporter: Kodey Converse
The {{RegionReplicaReplicationEndpoint}} checks table descriptors while it's
processing WAL edits to attempt to update it's cache of replication factors.
This check does not handle a table being dropped while the endpoint is running
(even if the table being dropped does not have replicas enabled), which results
in the endpoint crashing and not recovering until a restart of the
RegionServer. Replicas for all regions (including regions from other tables)
hosted by the RegionServer stop being updated.
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