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Andrew Kyle Purtell closed HBASE-12884. --------------------------------------- > Asynchronous Event Notification in HBase > ----------------------------------------- > > Key: HBASE-12884 > URL: https://issues.apache.org/jira/browse/HBASE-12884 > Project: HBase > Issue Type: New Feature > Reporter: Shaohui Liu > Priority: Major > > *Background* > In many scenarios, we need an asynchronous event notification > mechanism on HBase to know which data have been changed and users can do some > pre-defined reactions to these events. > For example: > * Incremental statistics of data in HBase > * Audit about change of important data > * To clean invalid data in other cache systems > *Features maybe* > * The mechanism is scalable. > * The notification is asynchronous. We don't want to affect the write > performance of HBase. > * The notification is reliable. The events can't be lost, but we can tolerate > duplicated events. > *Solution Maybe* > * Event notification based on replication. Transform the WAL edits to events, > and replicates a special peer that users implements. > This is just a brief thought about this feature. Discussions and suggestions > are welcomed! Thanks. -- This message was sent by Atlassian Jira (v8.20.7#820007)