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From "Impala Public Jenkins (Code Review)" <>
Subject [Impala-ASF-CR] IMPALA-4822: Implement dynamic log level changes
Date Tue, 07 Mar 2017 07:53:15 GMT
Impala Public Jenkins has submitted this change and it was merged.

Change subject: IMPALA-4822: Implement dynamic log level changes

IMPALA-4822: Implement dynamic log level changes

Very often we have to change the logging levels
of Impalads and Catalog server for debugging purposes.
Currently, there is no way to do that without a restart
of the daemons, which is not a viable option in production

This patch addresses this supportability gap by exposing
the ability to set dynamic logging levels using a simple
web endpoint on Impalad/Catalog/Statestore web pages.

This includes setting VLOG levels (equivalent to --v flag)
as well as setting log4j levels on the Frontend and the
Catalog JVMs.

Change-Id: I588418e9bcb0b66d33138baf96207a5a35bfbd63
Reviewed-by: Bharath Vissapragada <>
Tested-by: Impala Public Jenkins
M be/src/catalog/
M be/src/service/
M be/src/statestore/
M be/src/util/
M be/src/util/jni-util.h
M be/src/util/
M be/src/util/logging-support.h
M common/thrift/Logging.thrift
M fe/src/main/java/org/apache/impala/service/
M fe/src/main/java/org/apache/impala/util/
M tests/webserver/
A www/log_level.tmpl
12 files changed, 469 insertions(+), 11 deletions(-)

  Impala Public Jenkins: Verified
  Bharath Vissapragada: Looks good to me, approved

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Gerrit-MessageType: merged
Gerrit-Change-Id: I588418e9bcb0b66d33138baf96207a5a35bfbd63
Gerrit-PatchSet: 17
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Bharath Vissapragada <>
Gerrit-Reviewer: Alex Behm <>
Gerrit-Reviewer: Bharath Vissapragada <>
Gerrit-Reviewer: Dimitris Tsirogiannis <>
Gerrit-Reviewer: Henry Robinson <>
Gerrit-Reviewer: Impala Public Jenkins
Gerrit-Reviewer: Marcel Kornacker <>

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