[gpfsug-discuss] CCR troubles

[Bryan Banister]

When I have the GPFS cluster down, some GPFS commands no longer work like they should, or at least they did work without CCR:

# mmgetstate -aL                                                                 # Which stalls for a really stupid amount of time and then spits out:
get file failed: Not enough CCR quorum nodes available (err 809)
gpfsClusterInit: Unexpected error from ccr fget mmsdrfs.  Return code: 158
mmgetstate: Command failed. Examine previous error messages to determine cause.

And trying to change tuning parameters now also barfs when GPFS is down:
# [root at fpia-gpfs-jcsdr01 ~]# mmlsconfig
get file failed: Not enough CCR quorum nodes available (err 809)
gpfsClusterInit: Unexpected error from ccr fget mmsdrfs.  Return code: 158
mmlsconfig: Command failed. Examine previous error messages to determine cause.

# mmchconfig worker1Threads=128,prefetchThreads=128
mmchconfig: Unable to obtain the GPFS configuration file lock.
mmchconfig: GPFS was unable to obtain a lock from node fpia-gpfs-jcsdr01.grid.jumptrading.com.
mmchconfig: Command failed. Examine previous error messages to determine cause.

Which means I will have to start GPFS, change the parameter, shut GPFS down again, and start GPFS up again just to get the new setting.

Is this really the new mode of operation for CCR enabled clusters?

I searched CCR in the Concepts, Planning, and Install Guide and also the Adv. Admin Guide, with explanation.

If so, then maybe I'll go back to non CCR,
-Bryan

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