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From "John Russell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IMPALA-5091) Investigate and possibly improve handling of NN errors during table loading.
Date Fri, 17 Mar 2017 19:16:41 GMT

    [ https://issues.apache.org/jira/browse/IMPALA-5091?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15930551#comment-15930551
] 

John Russell commented on IMPALA-5091:
--------------------------------------

Any relevance for Kudu and HBase, when those kinds of tables are accessed?

> Investigate and possibly improve handling of NN errors during table loading.
> ----------------------------------------------------------------------------
>
>                 Key: IMPALA-5091
>                 URL: https://issues.apache.org/jira/browse/IMPALA-5091
>             Project: IMPALA
>          Issue Type: Bug
>          Components: Catalog
>    Affects Versions: Impala 2.9.0
>            Reporter: Alexander Behm
>              Labels: catalog, supportability
>
> Similar to IMPALA-5090 we should investigate and more clearly understand the table-loading
failure modes when various RPCs to external services fail.
> We should be careful to log enough information when handling various RPC failures during
table loading. For example, if the NN is overloaded and a table fails to load as a result,
we should log relevant HDFS client configuration option about retries/timeouts etc.
> Similar improvements apply to our interaction with Sentry and the Hive Metastore.



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