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Posted to dev@hbase.apache.org by "Geoffrey Jacoby (JIRA)" <ji...@apache.org> on 2017/01/25 23:10:27 UTC
[jira] [Created] (HBASE-17543) Create additional
ReplicationEndpoint WALEntryFilters by configuration
Geoffrey Jacoby created HBASE-17543:
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Summary: Create additional ReplicationEndpoint WALEntryFilters by configuration
Key: HBASE-17543
URL: https://issues.apache.org/jira/browse/HBASE-17543
Project: HBase
Issue Type: Improvement
Components: Replication
Reporter: Geoffrey Jacoby
Assignee: Geoffrey Jacoby
The existing BaseReplicationEndpoint creates a ChainWALEntryFilter containing a NamespaceTableCfWALEntryFilter and a ScopeWALEntryFilter. Adding a custom WALEntryFilter type to this chain requires creating an entirely new ReplicationEndpoint subclass and creating a new peer on the running cluster, which can be operationally complex to transition to without data loss in cases such as master/master.
For WALEntryFilters without constructor parameters, it would be straightforward to have a Configuration option to list additional WALEntryFilter classes the operator wants to include in the filter chain in the default endpoint, and then have the endpoint instantiate the filters via reflection. Then filter logic could be added (or removed) with only a hbase-site.xml change and a rolling restart.
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