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WIP: node: Add ability to evacuate objects from REP 1 only #1350

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acid-ant wants to merge 3 commits from acid-ant/frostfs-node:feat/evac-skip-rep-one into master
pull from: acid-ant/frostfs-node:feat/evac-skip-rep-one
merge into: TrueCloudLab:master
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acid-ant commented 2024-09-03 12:48:27 +00:00
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Blocked by #1356

Signed-off-by: Anton Nikiforov an.nikiforov@yadro.com

Blocked by #1356 Signed-off-by: Anton Nikiforov <an.nikiforov@yadro.com>
acid-ant added 2 commits 2024-09-03 12:48:49 +00:00
[#xx] node: Evacuate objects without setting mode to MAINTENANCE
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d2c27341a9 
Signed-off-by: Anton Nikiforov <an.nikiforov@yadro.com>
[#xx] node: Add ability to evacuate objects from REP 1 only
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26a007a017 
Signed-off-by: Anton Nikiforov <an.nikiforov@yadro.com>
acid-ant force-pushed feat/evac-skip-rep-one from 26a007a017 to d64712f25a 2024-09-03 12:50:41 +00:00 Compare
acid-ant force-pushed feat/evac-skip-rep-one from d64712f25a to 99441bf077 2024-09-03 13:43:59 +00:00 Compare
acid-ant force-pushed feat/evac-skip-rep-one from 99441bf077 to 0574590325 2024-09-04 13:40:25 +00:00 Compare
acid-ant force-pushed feat/evac-skip-rep-one from 0574590325 to 37ceddedc4 2024-09-05 13:33:42 +00:00 Compare
acid-ant force-pushed feat/evac-skip-rep-one from 37ceddedc4 to aa6083f90c 2024-09-05 13:46:14 +00:00 Compare
acid-ant force-pushed feat/evac-skip-rep-one from aa6083f90c to a6986dfcf3 2024-09-06 06:56:27 +00:00 Compare
acid-ant changed title from WIP: node: Add ability to evacuate objects from `REP 1` only to node: Add ability to evacuate objects from `REP 1` only 2024-09-06 07:01:27 +00:00
acid-ant requested review from storage-core-committers 2024-09-06 07:01:37 +00:00
acid-ant requested review from storage-core-developers 2024-09-06 07:01:38 +00:00
aarifullin reviewed 2024-09-06 07:37:29 +00:00
pkg/local_object_storage/engine/evacuate.go Outdated
@ -654,3 +656,3 @@
}
addr := toEvacuate[i].Address
if prm.RepOneOnly {
aarifullin commented 2024-09-06 07:37:29 +00:00
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Could you clarify, please, what a problem does this PR solve? Is there a specific case that requires to evacuate only REP 1 containers? May it be that we'll need to evacuate REP 2, REP 3 etc. only?

Could you clarify, please, what a problem does this PR solve? Is there a specific case that requires to evacuate only `REP 1` containers? May it be that we'll need to evacuate `REP 2`, `REP 3` etc. only?
acid-ant commented 2024-09-06 11:30:20 +00:00
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Just to do it quicker. It is not a recommended way, but may be helpful in emergency situation, when disk is going to die.

Just to do it quicker. It is not a recommended way, but may be helpful in emergency situation, when disk is going to die.
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dstepanov-yadro requested changes 2024-09-06 10:54:56 +00:00
pkg/local_object_storage/engine/evacuate.go Outdated
@ -706,0 +720,4 @@
return false, err
}
p := c.Value.PlacementPolicy()
for i := range p.NumberOfReplicas() {
dstepanov-yadro commented 2024-09-06 10:52:51 +00:00
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Looks like REP 1 SELECT 1 FROM X1 REP 1 SELECT 1 FROM X2 will defined as repOne.

Looks like `REP 1 SELECT 1 FROM X1 REP 1 SELECT 1 FROM X2` will defined as repOne.
acid-ant commented 2024-09-06 11:40:22 +00:00
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Right, and I think that condition should be strong and simple. In other case, we need to check if current node should store REP 1 or not. Should we do that check instead of the currently implemented?

Right, and I think that condition should be strong and simple. In other case, we need to check if current node should store `REP 1` or not. Should we do that check instead of the currently implemented?
dstepanov-yadro commented 2024-09-06 12:41:38 +00:00
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I don't know. But I think there is no difference between REP 1 SELECT 1 FROM X1 REP 1 SELECT 1 FROM X2 and REP 2 SELECT 2 FROM X policies, as both of then require 2 object instances.

I don't know. But I think there is no difference between `REP 1 SELECT 1 FROM X1 REP 1 SELECT 1 FROM X2` and `REP 2 SELECT 2 FROM X` policies, as both of then require 2 object instances.
acid-ant force-pushed feat/evac-skip-rep-one from a6986dfcf3 to e281d31fbc 2024-09-09 08:57:04 +00:00 Compare
acid-ant changed title from node: Add ability to evacuate objects from `REP 1` only to WIP: node: Add ability to evacuate objects from `REP 1` only 2024-09-10 11:20:31 +00:00
acid-ant force-pushed feat/evac-skip-rep-one from e281d31fbc to 69c75a660b 2024-09-18 12:04:28 +00:00 Compare
acid-ant force-pushed feat/evac-skip-rep-one from 69c75a660b to 94e8629888 2024-09-18 12:06:01 +00:00 Compare
acid-ant force-pushed feat/evac-skip-rep-one from 94e8629888 to 763a7cef1c 2024-09-18 15:04:20 +00:00 Compare
acid-ant force-pushed feat/evac-skip-rep-one from 763a7cef1c to bcc0fed99c 2024-09-22 18:19:52 +00:00 Compare
acid-ant added 1 commit 2024-09-23 09:19:50 +00:00
[#1350] node: Add unit test to measure time required for evacuation
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2218e42a10 
Signed-off-by: Anton Nikiforov <an.nikiforov@yadro.com>
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Reference: TrueCloudLab/frostfs-node#1350
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