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Posted to common-issues@hadoop.apache.org by "Brahma Reddy Battula (Jira)" <ji...@apache.org> on 2020/04/10 18:16:04 UTC
[jira] [Updated] (HADOOP-15834) Improve throttling on S3Guard DDB
batch retries
[ https://issues.apache.org/jira/browse/HADOOP-15834?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Brahma Reddy Battula updated HADOOP-15834:
------------------------------------------
Target Version/s: 3.4.0 (was: 3.3.0)
Bulk update: moved all 3.3.0 non-blocker issues, please move back if it is a blocker.
> Improve throttling on S3Guard DDB batch retries
> -----------------------------------------------
>
> Key: HADOOP-15834
> URL: https://issues.apache.org/jira/browse/HADOOP-15834
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 3.2.0
> Reporter: Steve Loughran
> Priority: Minor
>
> the batch throttling may fail too fast
> if there's batch update of 25 writes but the default retry count is nine attempts, only nine writes of the batch may be attempted...even if each attempt is actually successfully writing data.
> In contrast, a single write of a piece of data gets the same no. of attempts, so 25 individual writes can handle a lot more throttling than a bulk write.
> Proposed: retry logic to be more forgiving of batch writes, such as not consider a batch call where at least one data item was written to count as a failure
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