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Re: [tycho-user] What could have triggered the change of the caching behavior of "Adding repository" ?

Check the logs, there must be another Adding repository

On 12-03-05 2:21 AM, Bernd Vogt wrote:
Actually, the VM run out of heap. After increasing Xmx from 128m to 192m
the build succeeded (yes.. my server is weak).

I asked for soft or weak-caching, not because I thought there is the
problem, but to explain myself, what caused the switch from "Adding
repository (cached)" to "Adding repository" at exactly the same time in
build? After increasing the heap, Tycho performs "Adding
repository (cached)" again. This behaviour could be explained with a
memory sensitive cache?

Thanks,
Bernd

2012/3/4 Igor Fedorenko <igor@xxxxxxxxxxxxxx <mailto:igor@xxxxxxxxxxxxxx>>

    As far as I can tell, you have the same repository referenced from
    multiple reactor modules. Parsing repository metadata is rather
    expansive, so Tycho reads it once and then reuses the same repository
    metadata for all modules that reference the repository. Whether this is
    a weak/soft or a hard reference does not matter because complete
    metadata needs to be read in memory and your JVM does not have enough
    heap for that. You need to either increase heap limit or reduce amount
    of metadata (by referencing specific 3.7.x build instead of all
    versions, for example).

    --
    Regards,
    Igor



    On 12-03-04 12:50 PM, Bernd Vogt wrote:

        Most probably it's like you say... my build server is not the
        strongest
        one and I have to keep memory consumption very low.

        Do you have any ideas, what caused Tycho the switch from "Adding
        repository (cached)" to "Adding repository"? Does Tycho make use
        of soft
        or weak caching at this point?

        2012/3/4 Igor Fedorenko <igor@xxxxxxxxxxxxxx
        <mailto:igor@xxxxxxxxxxxxxx> <mailto:igor@xxxxxxxxxxxxxx
        <mailto:igor@xxxxxxxxxxxxxx>>>


            Most likely your build already was on the threshold of
        running out of
            heap. New eclipse version (i.e. 3.7.2) brought additional p2
        metadata
            and pushed the build over the available heap limit.

            --
            Regards,
            Igor


            On 12-03-04 10:32 AM, Bernd Vogt wrote:

                Hi,

                from one day to the other one of my build jobs begun to fail
                because of
                java.lang.OutOfMemoryError: Java heap space. And I'm
        still trying to
                figure out why?

                I noticed a little behavioral change while the
        tycho-surefire-plugin
                tries to resolve the org.eclipse.equinox.launcher from
        my locally
                mirrored Indigo repository. Befor the build started to
        fail, the
                Indo
                repository was already cached by Tycho, but now Tycho
        decides to
                add a
        "fresh" repository, see snippets below (Adding repository
                (cached)  vs.
                Adding repository).

                What could have triggered this behavioral change?

                Neither the build configuration, hardware or software was
                changed nor
                the source code. BUT around this time I have updated the
        local
                Indigo
                mirror with the new 3.7.2 stuff.

                Thanks in advance
                Bernd


                The good old days

          (http://jenkins.sourcepit.org/____job/b2_nightly/213/__consoleFull <http://jenkins.sourcepit.org/__job/b2_nightly/213/consoleFull>
        <http://jenkins.sourcepit.org/__job/b2_nightly/213/consoleFull
        <http://jenkins.sourcepit.org/job/b2_nightly/213/consoleFull>__>__):
                [INFO] --- tycho-surefire-plugin:0.14.1:____test
        (default-test) @
                org.sourcepit.b2.examples.____simple.module.tests ---

                [...]
                [INFO] Adding repository *(cached)
                *http://p2.sourcepit.org/____eclipse/indigo/
        <http://p2.sourcepit.org/__eclipse/indigo/>

        <http://p2.sourcepit.org/__eclipse/indigo/
        <http://p2.sourcepit.org/eclipse/indigo/>>

                [INFO] Downloading org.eclipse.equinox.launcher
                [...]

                Now

          (http://jenkins.sourcepit.org/____job/b2_nightly/209/__consoleFull <http://jenkins.sourcepit.org/__job/b2_nightly/209/consoleFull>
        <http://jenkins.sourcepit.org/__job/b2_nightly/209/consoleFull
        <http://jenkins.sourcepit.org/job/b2_nightly/209/consoleFull>__>__):
                [INFO] --- tycho-surefire-plugin:0.14.1:____test
        (default-test) @
                org.sourcepit.b2.examples.____simple.module.tests ---
                [...]
                [INFO] Adding repository
        http://p2.sourcepit.org/____eclipse/indigo/
        <http://p2.sourcepit.org/__eclipse/indigo/>

        <http://p2.sourcepit.org/__eclipse/indigo/
        <http://p2.sourcepit.org/eclipse/indigo/>>
                [ERROR] Java heap space -> [Help 1]
                java.lang.OutOfMemoryError: Java heap space


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