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Posted to hdfs-dev@hadoop.apache.org by "Steve Vaughan (Jira)" <ji...@apache.org> on 2022/07/25 14:08:00 UTC
[jira] [Created] (HDFS-16684) Exclude self from JournalNodeSyncer when using a bind host
Steve Vaughan created HDFS-16684:
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Summary: Exclude self from JournalNodeSyncer when using a bind host
Key: HDFS-16684
URL: https://issues.apache.org/jira/browse/HDFS-16684
Project: Hadoop HDFS
Issue Type: Improvement
Components: journal-node
Environment: Running with Java 11 and bind addresses set to 0.0.0.0.
Reporter: Steve Vaughan
The JournalNodeSyncer will include the local instance in syncing when using a bind host (e.g. 0.0.0.0). There is a mechanism that is supposed to exclude the local instance, but it doesn't recognize the meta-address as a local address.
Running with bind addresses set to 0.0.0.0, the JournalNodeSyncer will log attempts to sync with itself as part of the normal syncing rotation. For an HA configuration running 3 JournalNodes, the "other" list used by the JournalNodeSyncer will include 3 proxies.
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