Slow Replication on Campus

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Hi Friends,

 

We have 2 Ceph clusters on campus and we setup the second cluster as the DR
solution.

The images on the DR side are always behind the master.

 

Ceph Version : 12.2.11 

 

 

VMWARE_LUN0:

  global_id:   23460954-6986-4961-9579-0f2a1e58e2b2

  state:       up+replaying

  description: replaying, master_position=[object_number=2632711,
tag_tid=24, entry_tid=1967382595], mirror_position=[object_number=1452837,
tag_tid=24, entry_tid=456440697], entries_behind_master=1510941898

  last_update: 2020-11-30 14:13:38

 

VMWARE_LUN1:

  global_id:   cb579579-13b0-4522-b65f-c64ec44cbfaf

  state:       up+replaying

  description: replaying, master_position=[object_number=1883943,
tag_tid=28, entry_tid=1028822927], mirror_position=[object_number=1359161,
tag_tid=28, entry_tid=358296085], entries_behind_master=670526842

  last_update: 2020-11-30 14:13:33

 

Any suggestion on tuning or any parameters we can set on RBD-mirror to speed
up the replication. Both cluster have very little activity.

 

 

Appreciate your help.

 

Thanks,

-Vikas

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