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https://issues.apache.org/jira/browse/METRON-1584?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16494406#comment-16494406
]
ASF GitHub Bot commented on METRON-1584:
----------------------------------------
Github user mmiklavc commented on the issue:
https://github.com/apache/metron/pull/1036
I want to take a step back a moment here. I think there are some useful,
clarifying refactorings in this PR. I'm generally in favor of refactoring
improvements e.g. "handleTick(tuple)" that sum up the code nicely. I also like
adding sensible clarifying comments and making tests more clear. However, I'm
not sure how I feel about mixing refactoring like this with the bug fix itself.
It seems to me that the actual bug fix is roughly 5-10 lines of code. It makes
it more difficult to determine code that's specific to the change in mind. I
noticed this while reviewing https://github.com/apache/metron/pull/1015 as
well. Might it be better to do separate refactoring PR's? I am certainly not
suggesting we be pedantic about it - I'm not even clear how I would even
suggest a reasonable rule to follow, to be honest. Part of me thinks "ok,
broken window theory and boyscout rules - this is great stuff." But in general,
I think that splitting the refactoring will allow reviewers to voice opinions
specific to coding style and refactoring changes as distinct from a feature or
bug fix itself. It's clear that we all have varying opinions on what reads best
in our code, and I think splitting those discussions off will make the review
process more expedient.
> Indexing Topology Crashes with Invalid Message
> ----------------------------------------------
>
> Key: METRON-1584
> URL: https://issues.apache.org/jira/browse/METRON-1584
> Project: Metron
> Issue Type: Bug
> Reporter: Nick Allen
> Assignee: Nick Allen
> Priority: Major
>
> Per Mohan Venkateshaiah:
> I published message "adkadknalkda;LK;ad;Da;dD;" to indexing topic , I see
> that the random access indexing topology worker thread died and couldn't
> recover until the kafka topic was deleted and recreated.
> {code:java}
> Caused by: java.lang.IllegalStateException: Unable to parse
> adkadknalkda;LK;ad;Da;dD; due to null
> at
> org.apache.metron.common.message.JSONFromPosition.get(JSONFromPosition.java:49)
> ~[stormjar.jar:?]
> at
> org.apache.metron.common.message.JSONFromPosition.get(JSONFromPosition.java:25)
> ~[stormjar.jar:?]
> at
> org.apache.metron.writer.bolt.BulkMessageWriterBolt.execute(BulkMessageWriterBolt.java:237)
> ~[stormjar.jar:?]
> at
> org.apache.storm.daemon.executor$fn__10195$tuple_action_fn__10197.invoke(executor.clj:735)
> ~[storm-core-1.1.0.2.6.5.0-292.jar:1.1.0.2.6.5.0-292]
> at
> org.apache.storm.daemon.executor$mk_task_receiver$fn__10114.invoke(executor.clj:466)
> ~[storm-core-1.1.0.2.6.5.0-292.jar:1.1.0.2.6.5.0-292]
> at
> org.apache.storm.disruptor$clojure_handler$reify__4137.onEvent(disruptor.clj:40)
> ~[storm-core-1.1.0.2.6.5.0-292.jar:1.1.0.2.6.5.0-292]
> at
> org.apache.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:472)
> ~[storm-core-1.1.0.2.6.5.0-292.jar:1.1.0.2.6.5.0-292]
> ... 6 more
> Caused by: org.json.simple.parser.ParseException
> at org.json.simple.parser.Yylex.yylex(Yylex.java:610) ~[stormjar.jar:?]
> at org.json.simple.parser.JSONParser.nextToken(JSONParser.java:269)
> ~[stormjar.jar:?]
> at org.json.simple.parser.JSONParser.parse(JSONParser.java:118)
> ~[stormjar.jar:?]
> at org.json.simple.parser.JSONParser.parse(JSONParser.java:81)
> ~[stormjar.jar:?]
> at org.json.simple.parser.JSONParser.parse(JSONParser.java:75)
> ~[stormjar.jar:?]
> at
> org.apache.metron.common.message.JSONFromPosition.get(JSONFromPosition.java:47)
> ~[stormjar.jar:?]
> at
> org.apache.metron.common.message.JSONFromPosition.get(JSONFromPosition.java:25)
> ~[stormjar.jar:?]
> at
> org.apache.metron.writer.bolt.BulkMessageWriterBolt.execute(BulkMessageWriterBolt.java:237)
> ~[stormjar.jar:?]
> at
> org.apache.storm.daemon.executor$fn__10195$tuple_action_fn__10197.invoke(executor.clj:735)
> ~[storm-core-1.1.0.2.6.5.0-292.jar:1.1.0.2.6.5.0-292]
> at
> org.apache.storm.daemon.executor$mk_task_receiver$fn__10114.invoke(executor.clj:466)
> ~[storm-core-1.1.0.2.6.5.0-292.jar:1.1.0.2.6.5.0-292]
> at
> org.apache.storm.disruptor$clojure_handler$reify__4137.onEvent(disruptor.clj:40)
> ~[storm-core-1.1.0.2.6.5.0-292.jar:1.1.0.2.6.5.0-292]
> at
> org.apache.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:472)
> ~[storm-core-1.1.0.2.6.5.0-292.jar:1.1.0.2.6.5.0-292]
> ... 6 more
> 2018-05-24 09:21:22.236 o.a.s.util Thread-9-indexingBolt-executor[3 3]
> [ERROR] Halting process: ("Worker died")
> java.lang.RuntimeException: ("Worker died")
> at org.apache.storm.util$exit_process_BANG_.doInvoke(util.clj:341)
> [storm-core-1.1.0.2.6.5.0-292.jar:1.1.0.2.6.5.0-292]
> at clojure.lang.RestFn.invoke(RestFn.java:423) [clojure-1.7.0.jar:?]
> at org.apache.storm.daemon.worker$fn__10799$fn__10800.invoke(worker.clj:763)
> [storm-core-1.1.0.2.6.5.0-292.jar:1.1.0.2.6.5.0-292]
> at
> org.apache.storm.daemon.executor$mk_executor_data$fn__10011$fn__10012.invoke(executor.clj:276)
> [storm-core-1.1.0.2.6.5.0-292.jar:1.1.0.2.6.5.0-292]
> at org.apache.storm.util$async_loop$fn__1221.invoke(util.clj:494)
> [storm-core-1.1.0.2.6.5.0-292.jar:1.1.0.2.6.5.0-292]
> at clojure.lang.AFn.run(AFn.java:22) [clojure-1.7.0.jar:?]
> at java.lang.Thread.run(Thread.java:748) [?:1.8.0_161]
> 2018-05-24 09:21:22.237 o.a.s.d.worker Thread-20 [INFO] Shutting down worker
> random_access_indexing-24-1527147389 703b5bf7-6c9d-46f3-8136-0c4877a69375 6700
> 2018-05-24 09:21:22.237 o.a.s.d.worker Thread-20 [INFO] Terminating messaging
> context
> 2018-05-24 09:21:22.238 o.a.s.d.worker Thread-20 [INFO] Shutting down
> executors
> 2018-05-24 09:21:22.238 o.a.s.d.executor Thread-20 [INFO] Shutting down
> executor
> __metricsorg.apache.hadoop.metrics2.sink.storm.StormTimelineMetricsSink:[2 2]
> 2018-05-24 09:21:22.239 o.a.s.util Thread-6-disruptor-executor[2
> 2]-send-queue [INFO] Async loop interrupted!
> 2018-05-24 09:21:22.239 o.a.s.util
> Thread-7-__metricsorg.apache.hadoop.metrics2.sink.storm.StormTimelineMetricsSink-executor[2
> 2] [INFO] Async loop interrupted!
> 2018-05-24 09:21:22.240 o.a.h.m.s.s.StormTimelineMetricsSink Thread-20 [INFO]
> Stopping Storm Metrics Sink
> 2018-05-24 09:21:22.240 o.a.s.d.executor Thread-20 [INFO] Shut down executor
> __metricsorg.apache.hadoop.metrics2.sink.storm.StormTimelineMetricsSink:[2 2]
> 2018-05-24 09:21:22.241 o.a.s.d.executor Thread-20 [INFO] Shutting down
> executor indexingBolt:[3 3]
> {code}
>
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