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Posted to dev@flume.apache.org by "tinawenqiao (JIRA)" <ji...@apache.org> on 2017/02/17 11:24:41 UTC
[jira] [Commented] (FLUME-2961) Make TaildirSource work with
multiline
[ https://issues.apache.org/jira/browse/FLUME-2961?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15871703#comment-15871703 ]
tinawenqiao commented on FLUME-2961:
------------------------------------
In FLUME-2961_2.patch add some configurations about multiline.
multiline: Whether to support joining of multiline messages into a single flume event.
multilinePattern: Regexp which matches the start or the end of an event consisting of multilines.
multilinePatternBelong: Indicate the pattern belongs to the next or previous event. Value can be {'previous','next'}.
multilineMatched: Whether to match the pattern. If 'false', a message not matching the pattern will be combined with the previous or the next line.
multilineEventTimeoutSeconds: Maximum seconds before an event automatically be flushed. Default value 0 means never time out.
multilineMaxBytes: If the length of multiline event bytes exceeds this value, the event will be flushed. Default value 10MB. It's used in combination multilineMaxLines.
multilineMaxLines :If the lines of multiline event exceeds this value, the event will be flushed. Default value 500. It's used in combination multilineMaxBytes.
> Make TaildirSource work with multiline
> --------------------------------------
>
> Key: FLUME-2961
> URL: https://issues.apache.org/jira/browse/FLUME-2961
> Project: Flume
> Issue Type: Improvement
> Components: Sinks+Sources
> Affects Versions: v1.7.0
> Reporter: tinawenqiao
> Assignee: tinawenqiao
> Fix For: v1.8.0
>
> Attachments: FLUME-2961_1.patch
>
>
> TaidirSource defaults to LINE, this has issue when multiline log events like stack traces and have request/responses. Following part is Java traceback logs. We expect to have log line start regex Key to aggregate all the log lines till the next regex key is found.
> 2016-07-16 14:59:43,956 ERROR lifecycleSupervisor-1-7 LifecycleSupervisor.run - Unable to start EventDrivenSourceRunner: { source:cn.yottabyte.flume.source.http.HTTPSource{name:sourceHttp,state:IDLE} } - Exception follows.
> java.lang.IllegalStateException: Running HTTP Server found in source: sourceHttp before I started one. Will not attempt to start.
> at com.google.common.base.Preconditions.checkState(Preconditions.java:145)
> at cn.yottabyte.flume.source.http.HTTPSource.startHttpSourceServer(HTTPSource.java:170)
> at cn.yottabyte.flume.source.http.HTTPSource.start(HTTPSource.java:166)
> at org.apache.flume.source.EventDrivenSourceRunner.start(EventDrivenSourceRunner.java:44)
> at org.apache.flume.lifecycle.LifecycleSupervisor$MonitorRunnable.run(LifecycleSupervisor.java:251)
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
> at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
> at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
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