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From Nicolas Lalevée (JIRA) <j...@apache.org>
Subject [jira] Commented: (IVY-817) If DNS is playing up, Ivy takes a lot longer to sort project dependencies
Date Fri, 16 May 2008 07:42:55 GMT

    [ https://issues.apache.org/jira/browse/IVY-817?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12597372#action_12597372
] 

Nicolas Lalevée commented on IVY-817:
-------------------------------------

Could it be a kernel config issue or bug ? maybe somehow the cpu scheduling for your hardware
is stuck while trying to do some networking stuff...

> If DNS is playing up, Ivy takes a lot longer to sort project dependencies
> -------------------------------------------------------------------------
>
>                 Key: IVY-817
>                 URL: https://issues.apache.org/jira/browse/IVY-817
>             Project: Ivy
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 2.0.0-beta-2
>         Environment: Ubuntu 8.04 with messed up DNS
>            Reporter: Steve Loughran
>
> I've just upgraded to Ubuntu 8.04, and for reasons I dont fully understand. DNS is now
very patchy; long pauses before responses coming in
> running at -d level, the pauses happen after printing all the pauses, finishing when
the Sort dependencies response comes in
> [ivy-projects] Module descriptor is processed : org.smartfrog#sf-tasks;working@k2
> [ivy-projects] Module descriptor is processed : org.smartfrog#smartfrog;working@k2
> //insert 30s pause here
> [ivy-projects] Sort dependencies of : org.smartfrog#sf-m32;working@k2 / Number of dependencies
= 9
> During resolution, the delay happens after the sort
> [ivy:resolve] Module descriptor is processed : org.apache.ant#ant;1.7.0
> [ivy:resolve] Sort done for : org.apache.ant#ant-apache-regexp;1.7.0
> [ivy:resolve] Sort dependencies of : org.apache.ant#ant-apache-resolver;1.7.0 / Number
of dependencies = 3
> //here is where the delay is
> [ivy:resolve] Module descriptor is processed : org.apache.ant#ant;1.7.0
> [ivy:resolve] Sort done for : org.apache.ant#ant-apache-resolver;1.7.0
> [ivy:resolve] Sort dependencies of : org.apache.ant#ant-commons-logging;1.7.0 / Number
of dependencies = 3
> -I'm not sure why dns/rdns should be needed during a sort, unless remote repositories
are being polled. I'm also surprised, as java caches DNS responses by default. 

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