Solaris Cluster 3.x Global filesystem does not support mandatory locking
(Doc ID 1375394.1)
Last updated on FEBRUARY 16, 2022
Applies to:
Solaris Cluster - Version 3.0 to 3.3 U1 [Release 3.0 to 3.3]Oracle Solaris on SPARC (64-bit)
Oracle Solaris on x86-64 (64-bit)
Symptoms
The following error message can occur if you use logadm on Solaris Cluster global filesystem (pxfs).
logadm: Error: cannot lock file mylogfile: Operation not supported
Example:
In a Solaris Cluster configuration, a log file named mylogfile has been placed in a global filesystem named /global/data.
# ls -l /global/data/mylogfile*
-rw-r--r-- 1 root root 6 Nov 9 09:47 mylogfile
If using logadm utility to rotate that log file fails on pxfs.
root@node1# logadm -v -c -C 3 -p 1m mylogfile
Output of command above:
# loading /etc/logadm.conf
# processing logname: mylogfile
# using default template: $file.$n
mkdir -p . # verify directory exists
# log rotation via atomic copy and truncation (-c flag):
# copy mylogfile to mylogfile.0
# truncate mylogfile
logadm: Error: cannot lock file mylogfile: Operation not supported
# ls -l /global/data/mylogfile*
-rw-r-lr-- 1 root root 6 Nov 9 09:47 mylogfile
-rw-r--r-- 1 root root 0 Nov 9 09:48 mylogfile.0
Note that mylogfile now has the l bit set in the permissions.
Cause
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