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https://issues.apache.org/jira/browse/NIFI-4151?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16074934#comment-16074934
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ASF GitHub Bot commented on NIFI-4151:
--------------------------------------

GitHub user markap14 opened a pull request:

    https://github.com/apache/nifi/pull/1979

    NIFI-4151: Updated UpdateAttribute to only create JAXB Context once; …

    …Minor performance tweaks to standard validators and 
StatusMerge.prettyPrint; updated AbstractConfiguredComponent to not create a 
new ValidationContext each time that validate is called but only when needed; 
updated FlowController, StandardControllerServiceProvider, and 
StandardProcessGroup so that component lookups can be performed using a 
ConcurrentMap at FlowController level instead of having to perform a 
depth-first search through all ProcessGroups when calling findProcessor(), 
findProcessGroup(), findXYZ()
    
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    to ensure the following steps have been taken:
    
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You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/markap14/nifi NIFI-4151

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/nifi/pull/1979.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #1979
    
----
commit 6d2adbd30719cf43d93c399772c282ca4df5cd4b
Author: Mark Payne <marka...@hotmail.com>
Date:   2017-07-05T15:24:01Z

    NIFI-4151: Updated UpdateAttribute to only create JAXB Context once; Minor 
performance tweaks to standard validators and StatusMerge.prettyPrint; updated 
AbstractConfiguredComponent to not create a new ValidationContext each time 
that validate is called but only when needed; updated FlowController, 
StandardControllerServiceProvider, and StandardProcessGroup so that component 
lookups can be performed using a ConcurrentMap at FlowController level instead 
of having to perform a depth-first search through all ProcessGroups when 
calling findProcessor(), findProcessGroup(), findXYZ()

----


> Slow response times when requesting Process Group Status
> --------------------------------------------------------
>
>                 Key: NIFI-4151
>                 URL: https://issues.apache.org/jira/browse/NIFI-4151
>             Project: Apache NiFi
>          Issue Type: Bug
>            Reporter: Mark Payne
>            Assignee: Mark Payne
>
> I have a flow with > 1,000 Process Groups and 2500 Processors. A few thousand 
> connections and input/output ports as well. When I refresh stats it is taking 
> 3-4 seconds to pull back the status. And when I go to the Summary table, it's 
> taking about 8 seconds.



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