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Posted to issues-all@impala.apache.org by "ASF subversion and git services (JIRA)" <ji...@apache.org> on 2018/10/02 17:34:00 UTC
[jira] [Commented] (IMPALA-7532) Add retry/back-off to
fetch-from-catalog RPCs
[ https://issues.apache.org/jira/browse/IMPALA-7532?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16635859#comment-16635859 ]
ASF subversion and git services commented on IMPALA-7532:
---------------------------------------------------------
Commit ade399c08f5a74f87d192b47d2b65c3b56d05f7c in impala's branch refs/heads/master from [~tianyiwang]
[ https://git-wip-us.apache.org/repos/asf?p=impala.git;h=ade399c ]
IMPALA-7532: Add catalogd client backoff time into impalad CLI options
Impala may fail queries or fail to start if the connection to catalogd
cannot be estabilished. Impala already has a retrial mechanism but the
backoff time is currently 0. This patch adds an option
"catalog_client_rpc_retry_interval_ms" for it, defaulting to 10 seconds.
Change-Id: I924c1f2fd37021f4c8fb6b46aa278ac4b1aee131
Reviewed-on: http://gerrit.cloudera.org:8080/11543
Reviewed-by: Impala Public Jenkins <im...@cloudera.com>
Tested-by: Impala Public Jenkins <im...@cloudera.com>
> Add retry/back-off to fetch-from-catalog RPCs
> ---------------------------------------------
>
> Key: IMPALA-7532
> URL: https://issues.apache.org/jira/browse/IMPALA-7532
> Project: IMPALA
> Issue Type: Sub-task
> Reporter: Todd Lipcon
> Assignee: Tianyi Wang
> Priority: Major
>
> Currently if there is an error connecting to the catalog server, the 'fetch from catalog' implementation will retry with no apparent backoff. We should retry for some period of time with backoff in between the attempts, so that impala can ride over short interruptions of the catalog service.
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