No available BE to choose when repair #4104

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1. liutang123

   added a commit that references this issue on Jul 16, 2020

   Delete bad replicas when no BE can be used to create new replica. for a…

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   0a2553f
2. morningman

   changed the title [-]No awailable BE to choose when repair[/-] [+]No available BE to choose when repair[/+] on Jul 16, 2020
3. morningman commented on Jul 20, 2020

   

   morningman

   on Jul 20, 2020

   Last edited by morningman

   Contributor

   More actions

   There are A, B, C and D 4 BEs.
   tablet t has 3 replicas in A(good), B(good) and C(version miss).
   If now mark D as decommissioned. FE will never delete replica in C and can not choose D to create new replica.

   I think this case will fall into this branch:

   https://github.com/apache/incubator-doris/blob/2de4f2471bd729e9f723ca8cdd5d9abfe69bf8eb/fe/src/main/java/org/apache/doris/catalog/Tablet.java#L476-L478

   So it can not run to the code you modified in #4105
4. liutang123 commented on Jul 21, 2020

   

   liutang123

   on Jul 21, 2020

   Last edited by liutang123

   ContributorAuthor

   More actions

   There are A, B, C and D 4 BEs.
   tablet t has 3 replicas in A(good), B(good) and C(version miss).
   If now mark D as decommissioned. FE will never delete replica in C and can not choose D to create new replica.

   I think this case will fall into this branch:

   https://github.com/apache/incubator-doris/blob/2de4f2471bd729e9f723ca8cdd5d9abfe69bf8eb/fe/src/main/java/org/apache/doris/catalog/Tablet.java#L476-L478

   So it can not run to the code you modified in #4105

   Sorry, decommission one BE may not encounter this bug.
   Please refer to the complicated situation.

   The complex situation is:
   There are A, B, C, D and E 5 BEs.
   tabletA has replicas a1(A)(good), a2(B)(good), a3(C)(version miss), a4(D)(good)
   tabletB has replicas b1(A)(good), b2(B)(good), b3(c)(version miss), b4(E)(good)
   Because tabletA and tabletB are all REPLICA_RELOCATING, but they can not find a BE to create new replica.
   a4 prevents D from being deleted and b4 prevents E from being deleted.
   The repair and decommission will hang.
5. liutang123

   added a commit that references this issue on Jul 21, 2020

   Delete bad replicas when no BE can be used to create new replica. for a…

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   235a08f
6. liutang123

   closed this as completedon Jul 22, 2020
7. kaijchen

   added 4 commits that reference this issue on Jun 26, 2025

   [fix](warmup) recycle_cache should also recycle index files (apache#4104

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   2cbc3f1

   [fix](warmup) recycle_cache should also recycle index files (apache#4104

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   1b847b9

   [fix](warmup) recycle_cache should also recycle index files (apache#4104

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   185affc

   [fix](warmup) recycle_cache should also recycle index files (apache#4104

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   70d8f8e
8. csun5285

   added a commit that references this issue on Sep 23, 2025

   [fix](warmup) recycle_cache should also recycle index files (apache#4104

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   ea45271