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From "Roman Shaposhnik (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (BIGTOP-357) libjvm.so dependency on CentOS can only be satisfied by libgcj in some cases
Date Thu, 19 Jan 2012 02:08:40 GMT
libjvm.so dependency on CentOS can only be satisfied by libgcj in some cases
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                 Key: BIGTOP-357
                 URL: https://issues.apache.org/jira/browse/BIGTOP-357
             Project: Bigtop
          Issue Type: Bug
          Components: RPM
            Reporter: Roman Shaposhnik
            Assignee: Roman Shaposhnik


This is one of the unfortunate side effect of us not really being able to depend on JDK in
a proper packaged way. Currently the hadoop package quite rightfully depends on libjvm.so
but the trouble is that Sun/Oracle JDK RPM package doesn't really "provide" libjvm.so from
RPM/YUM perspective (Sun/Oracle JDK RPM package in general cuts a lot of corners in packaging
-- that's just one of them).

What this leads to is that YUM keeps looking for packages that DO provide libjvm.so and in
some cases the only one is libgcj. Thus the end result is for a user to see weird dependency
on libgcj when installing hadoop package. It should be noted that this is harmless. The right
libjvm.so (from Sun/Oracle JDK) is used during execution and libgcj is just quietly sitting
there.

As a side note, in a true enterprise case (RHEL) the right thing happens -- a properly packaged
JDK from RHEL channel gets pulled.

Now, it would be nice if RPM has an option of disabling just THAT one auto dependency (on
libjvm.so) but I'm not aware of such a thing. Hence this fix disables ALL of our automatic
dependencies.

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