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Posted to issues@metron.apache.org by "Justin Leet (JIRA)" <ji...@apache.org> on 2018/12/11 16:24:00 UTC
[jira] [Updated] (METRON-1888) Default Topology Settings in MPack
Cause Profiler to Stall
[ https://issues.apache.org/jira/browse/METRON-1888?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Justin Leet updated METRON-1888:
--------------------------------
Fix Version/s: 0.7.0
> Default Topology Settings in MPack Cause Profiler to Stall
> ----------------------------------------------------------
>
> Key: METRON-1888
> URL: https://issues.apache.org/jira/browse/METRON-1888
> Project: Metron
> Issue Type: Bug
> Reporter: Nick Allen
> Assignee: Nick Allen
> Priority: Major
> Fix For: 0.7.0
>
>
> The default max spout pending set by the Mpack for the Profiler topology is 300. This value is too low and causes the topology to stall and stop consuming messages.
>
> The Profiler topology is the only Metron topology that uses Storm's windowing support. Storm will queue up messages for the window length (by default 30 seconds) and process each of those windows.
>
> This causes Storm to need to "hang on" to tuples longer than the other topologies and this requires a much greater max spout pending value.
>
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