Steve Loughran created HADOOP-18185:
---------------------------------------
Summary: tune logging of prefetch problems
Key: HADOOP-18185
URL: https://issues.apache.org/jira/browse/HADOOP-18185
Project: Hadoop Common
Issue Type: Sub-task
Components: fs/s3
Affects Versions: 3.4.0
Reporter: Steve Loughran
we need to think what we want to do here.
* we would want errors to be counted and included in stream iostats
* but we've seen abfs apps flooded with stack traces when a transient network
error breaks every prefetch.
* logging through LogExactlyOnce would highlight a problem, but on a long lived
process, not show enough, unless the cache manager had a per instance value.
# PrefetchTask needs to be non static and update the CachingBlockManager when
there is a problem; it can LogExactlyOnce
# stream statistics need to include cache values (hits, misses, prefech
failures, how long futures were queued before execution...)
--
This message was sent by Atlassian Jira
(v8.20.1#820001)
---------------------------------------------------------------------
To unsubscribe, e-mail: common-dev-unsubscr...@hadoop.apache.org
For additional commands, e-mail: common-dev-h...@hadoop.apache.org
