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From Jean-Baptiste Onofré ...@nanthrax.net>
Subject Re: Delay when adding or removing features?
Date Tue, 16 Apr 2019 09:06:09 GMT
Hi Steve,

is your kar large ?

Don't you have transitive features that need to be downloaded ?

1. Can you try to just do a restart of karaf (without removing the data
folder) once the kar is installed to see if it takes time just to start
your features ?
2. Maybe add debug for the pax-url to identify potential download
3. Maybe take a thread dump that you can send to me to identify where we
spend time.

Regards
JB

On 16/04/2019 10:58, steve.g.chapman@gmail.com wrote:
> Any assistance for this slow behaviour of my karaf 4.2.4 distribution for
> deploy/redeploy of a kar file? The delays are becoming painful. 
> 
> Can anyone suggest how I can diagnose the root cause? Is there some module I
> should enable debug logging on to see what is causing the delay?
> 
> Once again the issue is that when I drop a kar file into the deploy folder
> there seem to be consistent 2 long delays to complete the deploy. The first
> delay is typically 45seconds while the karaf deployer identifies the changes
> that need to be performed to provide the feature dependencies of the kar.
> The second delay is typically 90seconds while the karaf deployer identifies
> the changes to perform to complete the install of the kar's feature. In both
> cases the actual deploy action is quick, it is only the deploy analysis that
> is slow, i.e. the time to install and start bundles once the reqd changes
> are known is quick.
> 
> Thanks
> Steve
> 
> 
> -----Original Message-----
> From: AoteaSteve <steve.g.chapman@gmail.com> 
> Sent: Thursday, 28 March 2019 12:29 PM
> To: user@karaf.apache.org
> Subject: Delay when adding or removing features?
> 
> I have a Karaf 4.2.4 distribution.
> 
> I find that when I drop a kar file into the deploy folder there is a
> constant long delay first while the changes to perform for the feature
> dependencies are identified and then while the changes to perform to
> complete the install of the kar's feature.
> 
> I dont see anything in the log to indicate waht is happening but do know the
> processor is heavily used during these delays. 
> 
> Any advice on how I can investigate this?
> 
> Example log snippet follows - see the delay from 11:24:13 - 11:24:54 for
> "adding features" - "changes to perform". Also the delay from 11:24:54 -
> 11:26:14 for "done" - "changes to perform": 
> 
> 11:24:13.834 INFO [fileinstall-C:\data\ksr-1.0.0/deploy] Found a .kar file
> to deploy.
> 11:24:13.838 INFO [fileinstall-C:\data\ksr-1.0.0/deploy] Installing KAR file
> C:\data\ksr-1.0.0\deploy\feed-storage-1.0.0-SNAPSHOT.kar
> 11:24:13.985 INFO [fileinstall-C:\data\ksr-1.0.0/deploy] Added feature
> repository
> 'mvn:com.clogic.newswire/feed-storage/1.0.0-SNAPSHOT/xml/features'
> 11:24:13.989 INFO [fileinstall-C:\data\ksr-1.0.0/deploy] Adding features:
> feed-storage/[1.0.0.SNAPSHOT,1.0.0.SNAPSHOT]
> 11:24:54.420 INFO [features-3-thread-1] Changes to perform:
> 11:24:54.421 INFO [features-3-thread-1]   Region: root
> 11:24:54.423 INFO [features-3-thread-1]     Bundles to install:
> 11:24:54.424 INFO [features-3-thread-1]      
> mvn:org.apache.camel/camel-mongodb3/2.23.1
> 11:24:54.424 INFO [features-3-thread-1]      
> mvn:org.eclipse.jetty/jetty-http/9.4.12.v20180830
> 11:24:54.425 INFO [features-3-thread-1]      
> mvn:org.eclipse.jetty.websocket/websocket-common/9.4.12.v20180830
> 11:24:54.426 INFO [features-3-thread-1]      
> mvn:org.mongodb/mongo-java-driver/3.9.0
> 11:24:54.427 INFO [features-3-thread-1] Installing bundles:
> 11:24:54.428 INFO [features-3-thread-1]
> mvn:org.apache.camel/camel-mongodb3/2.23.1
> 11:24:54.492 INFO [features-3-thread-1]
> mvn:org.eclipse.jetty/jetty-http/9.4.12.v20180830
> 11:24:54.494 INFO [features-3-thread-1]
> mvn:org.eclipse.jetty.websocket/websocket-common/9.4.12.v20180830
> 11:24:54.495 INFO [features-3-thread-1]
> mvn:org.mongodb/mongo-java-driver/3.9.0
> 11:24:54.548 INFO [features-3-thread-1] Starting bundles:
> 11:24:54.549 INFO [features-3-thread-1]
> org.mongodb.mongo-java-driver/3.9.0
> 11:24:54.556 INFO [features-3-thread-1]
> org.apache.camel.camel-mongodb3/2.23.1
> 11:24:54.569 INFO [features-3-thread-1] Done.
> 11:26:14.180 INFO [features-3-thread-1] Changes to perform:
> 11:26:14.181 INFO [features-3-thread-1]   Region: root
> 11:26:14.183 INFO [features-3-thread-1]     Bundles to install:
> 11:26:14.183 INFO [features-3-thread-1]      
> mvn:com.clogic.newswire/feed-storage/1.0.0-SNAPSHOT
> 11:26:14.184 INFO [features-3-thread-1]      
> mvn:org.eclipse.jetty/jetty-http/9.4.12.v20180830
> 11:26:14.185 INFO [features-3-thread-1]      
> mvn:org.eclipse.jetty.websocket/websocket-common/9.4.12.v20180830
> 11:26:14.186 INFO [features-3-thread-1] Installing bundles:
> 11:26:14.186 INFO [features-3-thread-1]
> mvn:com.clogic.newswire/feed-storage/1.0.0-SNAPSHOT
> 11:26:14.245 INFO [features-3-thread-1]
> mvn:org.eclipse.jetty/jetty-http/9.4.12.v20180830
> 11:26:14.247 INFO [features-3-thread-1]
> mvn:org.eclipse.jetty.websocket/websocket-common/9.4.12.v20180830
> 11:26:14.273 INFO [features-3-thread-1] Starting bundles:
> 11:26:14.274 INFO [features-3-thread-1]   feed-storage/1.0.0.SNAPSHOT
> 11:26:14.577 INFO [features-3-thread-1] Cluster created with settings
> {hosts=[localhost:27017], mode=SINGLE, requiredClusterType=UNKNOWN,
> serverSelectionTimeout='30000 ms', maxWaitQueueSize=500}
> 11:26:14.620 INFO [features-3-thread-1] Blueprint bundle
> feed-storage/1.0.0.SNAPSHOT has been started
> 11:26:14.621 INFO [Blueprint Event Dispatcher: 1] Attempting to start
> CamelContext: feed-storage
> 11:26:14.623 INFO [Blueprint Event Dispatcher: 1] Apache Camel 2.23.1
> (CamelContext: feed-storage) is starting
> 11:26:14.623 INFO [Blueprint Event Dispatcher: 1] StreamCaching is enabled
> on CamelContext: feed-storage
> 
> 
> 
> --
> Sent from: http://karaf.922171.n3.nabble.com/Karaf-User-f930749.html
> 

-- 
Jean-Baptiste Onofré
jbonofre@apache.org
http://blog.nanthrax.net
Talend - http://www.talend.com

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