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@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 ________________________________ Note: This email is for the confidential use of the named addressee(s) only and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you are hereby notified that any review, dissemination or copying of this email is strictly prohibited, and to please notify the sender immediately and destroy this email and any attachments. Email transmission cannot be guaranteed to be secure or error-free. The Company, therefore, does not make any guarantees as to the completeness or accuracy of this email or any attachments. This email is for informational purposes only and does not constitute a recommendation, offer, request or solicitation of any kind to buy, sell, subscribe, redeem or perform any type of transaction of a financial product.
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