[gpfsug-discuss] CCR troubles - CCR vs systemd
Marc A Kaplan
makaplan at us.ibm.com
Thu Jul 28 21:16:30 BST 2016
Allow me to restate and demonstrate:
Even if systemd or any explicit kill signals destroy any/all running mmcr*
and mmsdr* processes,
simply running mmlsconfig will fire up new mmcr* and mmsdr* processes. For
example:
## I used kill -9 to kill all mmccr, mmsdr, lxtrace, ... processes
[root at n2 gpfs-git]# ps auwx | grep mm
root 9891 0.0 0.0 112640 980 pts/1 S+ 12:57 0:00 grep
--color=auto mm
[root at n2 gpfs-git]# mmlsconfig
Configuration data for cluster madagascar.frozen:
-------------------------------------------------
clusterName madagascar.frozen
...
worker1Threads 1022
adminMode central
File systems in cluster madagascar.frozen:
------------------------------------------
/dev/mak
/dev/x1
/dev/yy
/dev/zz
## mmlsconfig "needs" ccr and sdrserv, so if it doesn't see them, it
restarts them!
[root at n2 gpfs-git]# ps auwx | grep mm
root 9929 0.0 0.0 114376 1696 pts/1 S 12:58 0:00
/usr/lpp/mmfs/bin/mmksh /usr/lpp/mmfs/bin/mmccrmonitor 15
root 10110 0.0 0.0 20536 128 ? Ss 12:58 0:00
/usr/lpp/mmfs/bin/lxtrace-3.10.0-123.el7.x86_64 on /tmp/mmfs/lxtrac
root 10125 0.0 0.0 493264 11064 ? Ssl 12:58 0:00
/usr/lpp/mmfs/bin/mmsdrserv 1191 10 10 /var/adm/ras/mmsdrserv.log 1
root 10358 0.0 0.0 1700488 17636 ? Sl 12:58 0:00 python
/usr/lpp/mmfs/bin/mmsysmon.py
root 10440 0.0 0.0 114376 804 pts/1 S 12:59 0:00
/usr/lpp/mmfs/bin/mmksh /usr/lpp/mmfs/bin/mmccrmonitor 15
root 10442 0.0 0.0 112640 976 pts/1 S+ 12:59 0:00 grep
--color=auto mm
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