Jesse Yates created HBASE-6571:
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Summary: Generic multi-thread/cross-process error handling
framework
Key: HBASE-6571
URL: https://issues.apache.org/jira/browse/HBASE-6571
Project: HBase
Issue Type: Sub-task
Reporter: Jesse Yates
Assignee: Jesse Yates
The idea for a generic inter-process error-handling framework came from working
on HBASE-6055 (snapshots). Distributed snapshots require tight time constraints
in taking a snapshot to minimize offline time in face of errors. However, we
often need to coordinate errors between processes and the current Abortable
framework is not sufficiently flexible to handle the multitude of situations
that can occur when coordinating between all region servers, the master and
zookeeper. Using this framework error handling for snapshots was a simple
matter, amounting to maybe 200 LOC.
This seems to be a generally useful framework and can be used to easily add
inter-process error handling in HBase. The most obvious immediate usage is as
part of HBASE-5487 when coordinating multiple sub-tasks.
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