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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] Created: (IVY-817) If DNS is playing up, Ivy takes a lot longer to sort project dependencies
Date Tue, 13 May 2008 10:38:55 GMT
If DNS is playing up, Ivy takes a lot longer to sort project dependencies
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                 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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