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https://issues.apache.org/jira/browse/IMPALA-7532?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16631156#comment-16631156
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Rituparna Agrawal commented on IMPALA-7532:
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Here is the message in impalad.FATAL
Log file created at: 2018/09/26 11:38:57
Running on machine: adb-test9-4.vpc.cloudera.com
Log line format: [IWEF]mmdd hh:mm:ss.uuuuuu threadid file:line] msg
F0926 11:38:57.980722 42971 impala-server.cc:389] LocalCatalogException: Unable
to load database names
CAUSED BY: TException: org.apache.impala.common.InternalException: Couldn't
open transport for adb-test9-2.vpc.cloudera.com:26000 (connect() failed:
Connection refused)
CAUSED BY: InternalException: Couldn't open transport for
adb-test9-2.vpc.cloudera.com:26000 (connect() failed: Connection refused)
. Impalad exiting.
> 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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