Friday 16 June 2017

Oracle Linux: Clean Yum dbcache

These weeks we provide a course on Weblogic 11g and 12c Basic and Advanced Administration and Tuning & Troubleshooting. We use an Oracle Linux 6 VM with a Database and Weblogic 11g and 12c.

We got some complaints (issued in a friendly way, by the way) from the attendees that a filesystem of the VM got filled up.

One of the attendees found out that the following folder containt some very large files:
-rw-r--r--. 1 root root 3225280512 Jun 15 21:10 other.xml.gz.sqlite
-rw-r--r--. 1 root root  475535360 Jun 15 21:07 primary.xml.gz.sqlite

This is apparently a yum cache that can be emptied with the following command:
# yum clean dbcache./ stop Servers fmw $1

I should remember this to do before sharing a VM.
Thanks Frederique for this smart tip.

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