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From "Bharath Vissapragada (Code Review)" <ger...@cloudera.org>
Subject [Impala-ASF-CR] IMPALA-4822: Implement dynamic log level changes
Date Fri, 03 Feb 2017 21:04:24 GMT
Bharath Vissapragada has posted comments on this change.

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


Patch Set 5:

(9 comments)

webserver-test.cc seems to be more unit-testing the WebServer class and I don't think we can
instantiate the JNI and test the actual code paths. So, I added new e-e tests to the patch.
Please let me know if you think we should add more variants.

http://gerrit.cloudera.org:8080/#/c/5792/5/be/src/util/backend-gflag-util.h
File be/src/util/backend-gflag-util.h:

Line 27: /// debugging, so we save the original value here incase we need to restore
> in case (two words)
Done


http://gerrit.cloudera.org:8080/#/c/5792/5/be/src/util/logging-support.cc
File be/src/util/logging-support.cc:

Line 77: jclass log4j_logger_class_;
> no "_" suffix since not private class members; make these static
Done


Line 196:   if (args.find("get_java_log") != args.end()) {
> make these strings constants like:
Done. Refactored it a little.


Line 212:         logging_level == args.end() || logging_level->second == NULL) return;
> use {} for multi-line ifs
Done


http://gerrit.cloudera.org:8080/#/c/5792/5/be/src/util/logging-support.h
File be/src/util/logging-support.h:

Line 25: namespace rapidjson {
> Ok to use the include if you prefer that solution. Either wfm.
I'm fine with this too.


Line 43: /// the Java log4j log messages to be forwarded to Glog.
> update comment to reflect that it loads JNI classes/methods to support dyna
Done


http://gerrit.cloudera.org:8080/#/c/5792/5/common/thrift/Logging.thrift
File common/thrift/Logging.thrift:

Line 34: // Helper structs for GetLogLevel(), SetLogLevel() and ResetLogLevel()
> update
Done


http://gerrit.cloudera.org:8080/#/c/5792/5/www/log_level.tmpl
File www/log_level.tmpl:

Line 27:       Log: <input type="text" name="getclass" placeholder="e.g. org.apache.foo">
> Pretty sure org.apache.foo won't be clear to users. I suggest using a full,
Done


Line 41:       Log: <input type="text" name="setclass" placeholder="e.g. org.apache.foo">
> use a real class name
Done


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Gerrit-MessageType: comment
Gerrit-Change-Id: I588418e9bcb0b66d33138baf96207a5a35bfbd63
Gerrit-PatchSet: 5
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Bharath Vissapragada <bharathv@cloudera.com>
Gerrit-Reviewer: Alex Behm <alex.behm@cloudera.com>
Gerrit-Reviewer: Bharath Vissapragada <bharathv@cloudera.com>
Gerrit-Reviewer: Dimitris Tsirogiannis <dtsirogiannis@cloudera.com>
Gerrit-Reviewer: Henry Robinson <henry@cloudera.com>
Gerrit-HasComments: Yes

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