[jbosstools-issues] [JBoss JIRA] (JBDS-4085) unresolved bundles, slow initial start up

[Nick Boldt (JIRA)]

    [ https://issues.jboss.org/browse/JBDS-4085?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13303726#comment-13303726 ] 

Nick Boldt commented on JBDS-4085:
----------------------------------

After some time, the console finally completed and Eclipse failed to start: [^restart-after-installing-m2e-wtp-jsf-stuff-from-Central_full.txt]

Looks like most of the problem is 'could not resolve' and 'constraint violation' errors. Seems that by installing things via Central we end up with conflicting dependency chains between stuff in /opt/rh/rh-eclipse46/root/usr/lib64/eclipse/ and stuff in ~/.eclipse/

> unresolved bundles, slow initial start up
> -----------------------------------------
>
>                 Key: JBDS-4085
>                 URL: https://issues.jboss.org/browse/JBDS-4085
>             Project: Red Hat JBoss Developer Studio (devstudio)
>          Issue Type: Bug
>          Components: rpm
>            Reporter: Václav Kadlčík
>         Attachments: restart-after-installing-m2e-wtp-jsf-stuff-from-Central.txt, restart-after-installing-m2e-wtp-jsf-stuff-from-Central_full.txt, unresolved-max.out, unresolved-mid.out, unresolved-min.out, workspace-max.log, workspace-mid.log, workspace-min.log
>
>
> Tested:
>  * rh-eclipse46-devstudio-10.2-0.20161004.2205.el7.x86_64.rpm
>  * rh-eclipse46 Beta (http://download-node-02.eng.bos.redhat.com/rel-eng/RHSCL-2.3-RHEL-7-Beta-1.0/compose/Server/x86_64/os/)
> rh-eclipse46 has its own unresolved bundles (https://bugzilla.redhat.com/show_bug.cgi?id=1381820). But when you add rh-eclipse46-devstudio, the number of unresolved symbols increases quite dramatically and initial start up times also get worse. (I guess that the two problems can be connected so I file them together but feel free to split them if I'm mistaken).
> I'm attaching "ss -s INSTALLED" and workspace logs for several scenarios:
>  * "min" in the name means minimal install rh-eclipse46-devstudio
>  * "mid" is for "yum install rh-eclipse46 rh-eclipse46-devstudio"
>  * "max" is for "yum install 'rh-eclipse46*'" - all the available RPMs, including devstudio
> As for start up times, it looks like devstudio adds ~80s for one particular machine (Xeon with 16 cores 2.40GHz, 16 GB RAM). For example:
> initial start of rh-eclipse46: 40s
> same as above with rh-eclipse46-devstudio: 120s
> initial start of rh-eclipse46* except devstudio: 50s
> same as above with rh-eclipse46-devstudio: 140s
> Roland Grunberg managed to improve initial start up times in rh-eclise46 a few weeks ago (https://bugzilla.redhat.com/show_bug.cgi?id=1362178#c17). I don't know it it helps here but I'm linking it anyway...



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