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Seeking help from a radosgw expert...
I have a 3-zone multisite configuration (all running pacific 16.2.9) with 1 bucket per zone and a couple of small objects in each bucket for testing purposes.
One of the secondary zones cannot get seem to get into sync with the master, sync status reports:
metadata sync syncing
full sync: 0/64 shards
incremental sync: 64/64 shards
metadata is caught up with master
data sync source: a6ed5947-0ceb-407b-812f-347fab2ef62d (zone-1)
syncing
full sync: 128/128 shards
full sync: 66 buckets to sync
incremental sync: 0/128 shards
data is behind on 128 shards
behind shards: [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127]
I have tried using "data sync init" and restarting the radosgw multiple times, but that does not seem to be helping in any way.
If I manually do "radosgw-admin data sync run --bucket bucket-1" - it just hangs forever and doesn't appear to do anything. Checking the sync status never shows any improvement in the shards.
It is very hard to figure out what to do as there are a several sync commands - bucket sync, data sync, metadata sync - and it is not clear what effect they have or how to properly run them when the syncing gets confused.
Any guidance on how to get out of this situation would be greatly appreciated. I've read lots of threads on various mailing list archives (via google search) and very few of them have any sort of resolution or recommendation that is confirmed to have fixed
these sort of problems.
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