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Thread: Cron Job

  1. #1
    mikechansf is offline Member
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    Default Cron Job

    I have been receiving this message on the admin email account.

    /etc/cron.daily/prelink:

    /etc/cron.daily/prelink: line 47: 18167 Aborted /usr/sbin/prelink -av $PRELINK_OPTS >>/var/log/prelink.log 2>&1

    I am not very familiar with cron job and don't know what this cron job is for. Can someone give me some insights? Thanks.

  2. #2
    chh
    chh is offline Advanced Member
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    Default

    Hi,

    I get this message from time to time as well.

    Your version of linux tries to prelink applications and libraries to make them start faster. Not really needed on a server in my eyes.
    This is not working for all applications and so you get this error.
    I am thinking of simply removing the cron job.
    This will do no harm.

    Christian

  3. #3
    moniker is offline Loyal Member
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    Default

    I was also getting this error message on my RedHat Enterprise Linux 4 server. As the previous poster said it's a cron job that you can safely remove. I removed it by deleting the relevant file from /etc/cron.daily.

  4. #4
    mikechansf is offline Member
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    Default

    Quote Originally Posted by moniker View Post
    I was also getting this error message on my RedHat Enterprise Linux 4 server. As the previous poster said it's a cron job that you can safely remove. I removed it by deleting the relevant file from /etc/cron.daily.
    Besides getting a somewhat annoying message, does the error cause any problems. If not, why remove it?

  5. #5
    moniker is offline Loyal Member
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    For me, the only reason to remove it was to stop the annoying message. If you don't find it annoying, then no reason to remove it right?

  6. #6
    bowergo is offline Senior Member
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    Default prelink cron error

    I stopped the noise by editing /etc/prelink.conf and added lines to blacklist specific files. I have not read enough about this process to disable/remove from cron.daily, the process seems to be related to creating links to C++ libraries prior to exececution of C++ code.

    cat /var/log/prelink.log | grep 'could not'

    add the files to /etc/prelink.conf (your files may vary)

    -b /usr/lib/libldap-2.2.so.7
    -b /usr/lib/libnfsidmap.so.0

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