[jira] [Resolved] (STORM-2422) Serialized Trident topology size does not grow linerarly

["Jungtaek Lim (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/STORM-2422?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jungtaek Lim resolved STORM-2422.
---------------------------------
       Resolution: Fixed
    Fix Version/s: 2.0.0

Thanks [~revans2], I merged into master.

I'm following your comment on PR and just only merged into master, but we can port back this anytime.

> Serialized Trident topology size does not grow linerarly
> --------------------------------------------------------
>
>                 Key: STORM-2422
>                 URL: https://issues.apache.org/jira/browse/STORM-2422
>             Project: Apache Storm
>          Issue Type: Bug
>          Components: trident
>            Reporter: Robert Joseph Evans
>            Assignee: Robert Joseph Evans
>             Fix For: 2.0.0
>
>          Time Spent: 40m
>  Remaining Estimate: 0h
>
> Many of the Trident bolts contain a serialized version of the entire trident graph.  This means that as the size of the graph grows, and the number of bolts grows with it, that the serialized topology grows quadraticly.
> The bolt only uses a small portion of that graph so we can filter out most of that.
> As an extreme example a topology with 1000 Bolts (4000 nodes in the graph) can grow to be over 1GB in size.  If we trim out the parts of the graph that are not needed the serialized topology is < 40MB in size.
> This is a backwards compatible change, because we are only stripping out data that is never touched by the bolt anyways.



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