How to improve 'rbd ls [pool]' response time

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Hi, all:

  If the Ceph cluster health status is HEALTH_OK, the execution time of ‘sudo rbd ls rbd’ is very short, like the following results.

$ time sudo rbd ls rbd

real    0m0.096s

user    0m0.014s

sys     0m0.028s

 

  But if there are several warnings (eg: 1 pgs degraded; 6 pgs incomplete; 1650 pgs peering; 7 pgs stale;), the execution time of ‘sudo rbd ls rbd’ may take a long time.

 

Is there any way to improve the response time of ‘rbd’ commands?

Any help would be much appreciated.

 

Best Regards,

WD Hwang

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