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Posted to dev@hbase.apache.org by "Zach York (JIRA)" <ji...@apache.org> on 2017/12/05 23:34:00 UTC
[jira] [Created] (HBASE-19435) Reopen Files for
ClosedChannelException in BucketCache
Zach York created HBASE-19435:
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Summary: Reopen Files for ClosedChannelException in BucketCache
Key: HBASE-19435
URL: https://issues.apache.org/jira/browse/HBASE-19435
Project: HBase
Issue Type: Bug
Components: BucketCache
Affects Versions: 1.3.1, 2.0.0
Reporter: Zach York
Assignee: Zach York
When using the FileIOEngine for BucketCache, the cache will be disabled if the connection is interrupted or closed. HBase will then get ClosedChannelExceptions trying to access the file. After 60s, the RS will disable the cache. This causes severe read performance degradation for workloads that rely on this cache. FileIOEngine never tries to reopen the connection. This JIRA is to reopen files when the BucketCache encounters a ClosedChannelException.
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