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Many oclib (/var/mnt/virtlibs/*) Mounts Seen On EMOC Control VServer After Upgrading To Exalogic April 2015 PSU 2.0.6.2.1 Or Later Versions (Doc ID 2053733.1)

Last updated on JANUARY 08, 2016

Applies to:

Oracle Exalogic Elastic Cloud Software - Version 2.0.6.2.1 and later
Linux x86-64
Oracle Virtual Server x86-64

Symptoms

In Exalogic Virtual environments after upgrading to April 2015 PSU 2.0.6.2.1 or later versions, issue of many oclib (var/mnt/virtlibs/*) mounts showing up on EMOC Control vServer is seen.

This issue is seen intermittently. When the EMOC Control vServer is rebooted the issue seems to be go away and come back again at later point of time.

Below is "df" command output from EMOC Control vServer which shows many oclib mounts at the time of the issue.

           [root@XXXXXEMOC /]# df -kh
           Filesystem            Size  Used Avail Use% Mounted on
           /dev/xvda2             28G   19G  7.5G  71% /
           /dev/xvda1             99M   32M   63M  34% /boot
           tmpfs                  16G     0   16G   0% /dev/shm
           /dev/xvdb1             99G   19G   75G  20% /u01
           XX.XX.XX.XX:/export/ExalogicControl
                                 20T  294G   20T   2% /mnt/elcontrol
           XX.XX.XX.XX:/export/Exalogic_EnterpriseController
                                 20T   32K   20T   1% /export/Exalogic_EnterpriseController
           XX.XX.XX.XX:/export/Exalogic_OVAB
                                 20T     0   20T   0% /u01/Oracle/Middleware/user_projects/domains/ovab_domain/ab_instance/repository
           XX.XX.XX.XX:/export/images
                                462G  6.2G  456G   2% /infrastructure/images
           XX.XX.XX.XX:/export/general
                                522G   66G  456G  13% /infrastructure/general
           XX.XX.XX.XX:/export/Exalogic_EnterpriseController/oclib
                                 20T     0   20T   0% /var/mnt/virtlibs/1435333569091
           XX.XX.XX.XX:/export/Exalogic_EnterpriseController/oclib
                                 20T     0   20T   0% /var/mnt/virtlibs/1435333569513
           XX.XX.XX.XX:/export/Exalogic_EnterpriseController/oclib
                                 20T     0   20T   0% /var/mnt/virtlibs/1435333569657
           XX.XX.XX.XX:/export/Exalogic_EnterpriseController/oclib
                                 20T     0   20T   0% /var/mnt/virtlibs/1435333569719
           XX.XX.XX.XX:/export/Exalogic_EnterpriseController/oclib
                                 20T     0   20T   0% /var/mnt/virtlibs/1435333570058
           XX.XX.XX.XX:/export/Exalogic_EnterpriseController/oclib
                                 20T     0   20T   0% /var/mnt/virtlibs/1435333570568
           XX.XX.XX.XX:/export/Exalogic_EnterpriseController/oclib
                                 20T     0   20T   0% /var/mnt/virtlibs/1435333570887
           XX.XX.XX.XX:/export/Exalogic_EnterpriseController/oclib
                                 20T     0   20T   0% /var/mnt/virtlibs/1435333571317
           XX.XX.XX.XX:/export/Exalogic_EnterpriseController/oclib
                                 20T     0   20T   0% /var/mnt/virtlibs/1435333571732
           XX.XX.XX.XX:/export/Exalogic_EnterpriseController/oclib
                                 20T     0   20T   0% /var/mnt/virtlibs/1392148451562                                

These many oclib mounts were not seen before upgrade to April 2015 PSU or later versions. However the EMOC Control vServer does not seem to be having any issues, it works fine. EC, OVMM, Control DB services are up and running.

Contents of /etc/fstab file from EMOC Control vServer show only one oclib share as follows.


           LABEL=/                 /                       ext3    defaults        1 1
           LABEL=/boot             /boot                   ext3    defaults        1 2
           tmpfs                   /dev/shm                tmpfs   defaults        0 0
           devpts                  /dev/pts                devpts  gid=5,mode=620  0 0
           sysfs                   /sys                    sysfs   defaults        0 0
           proc                    /proc                   proc    defaults        0 0
           LABEL=SWAP-VM           swap                    swap    defaults        0 0
           LABEL=ELCONTROL         /u01                    ext3    defaults        1 2
           XX.XX.XX.XX:/export/ExalogicControl    /mnt/elcontrol    nfs    rw    0 0
           XX.XX.XX.XX:/export/Exalogic_EnterpriseController /export/Exalogic_EnterpriseController nfs rw,bg,hard,nointr,tcp,vers=3,timeo=600,rsize=32768,wsize=32768,actimeo=0 0 0
           XX.XX.XX.XX:/export/Exalogic_EnterpriseController/oclib    /var/mnt/virtlibs/1392148451562    nfs    rsize=131072,wsize=131072    0    0
           XX.XX.XX.XX:/export/Exalogic_OVAB    /u01/Oracle/Middleware/user_projects/domains/ovab_domain/ab_instance/repository    nfs    rw    0 0
           XX.XX.XX.XX:/export/images    /infrastructure/images    nfs    rw    0 0
           XX.XX.XX.XX:/export/general    /infrastructure/general    nfs    rw    0    0
           XX.XX.XX.XX:/export/Exalogic_EnterpriseController/oclib/    /var/mnt/virtlibs/1392148451562    nfs    rsize=131072,wsize=131072    0    0

Cause

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In this Document
Symptoms
Cause
Solution
References


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