hadoop-common-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Aaron Fabbri (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-13904) DynamoDBMetadataStore to handle DDB throttling failures through retry policy
Date Mon, 20 Feb 2017 21:33:44 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-13904?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aaron Fabbri updated HADOOP-13904:
----------------------------------
    Attachment: HADOOP-13904-HADOOP-13345.004.patch

v4 patch removes TODOs, adds @value javadocs for constants, per [~stevel@apache.org]'s feedback.

> DynamoDBMetadataStore to handle DDB throttling failures through retry policy
> ----------------------------------------------------------------------------
>
>                 Key: HADOOP-13904
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13904
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>    Affects Versions: HADOOP-13345
>            Reporter: Steve Loughran
>            Assignee: Aaron Fabbri
>         Attachments: HADOOP-13904-HADOOP-13345.001.patch, HADOOP-13904-HADOOP-13345.002.patch,
HADOOP-13904-HADOOP-13345.003.patch, HADOOP-13904-HADOOP-13345.004.patch, screenshot-1.png
>
>
> When you overload DDB, you get error messages warning of throttling, [as documented by
AWS|http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Programming.Errors.html#Programming.Errors.MessagesAndCodes]
> Reduce load on DDB by doing a table lookup before the create, then, in table create/delete
operations and in get/put actions, recognise the error codes and retry using an appropriate
retry policy (exponential backoff + ultimate failure) 



--
This message was sent by Atlassian JIRA
(v6.3.15#6346)

---------------------------------------------------------------------
To unsubscribe, e-mail: common-issues-unsubscribe@hadoop.apache.org
For additional commands, e-mail: common-issues-help@hadoop.apache.org


Mime
View raw message