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Restore data after disk impact

Open quasar5935 opened this issue 5 months ago • 2 comments

Is there an existing issue for this?

  • [x] I have searched the existing issues

Describe the bug

Validate/rebalance procedure do not restore ec blocks.

Expected Behavior

Validate procedure will restore ec and mt blocks.

Current Behavior

I reproduced disk loss data. Validate procedure do not restore ec and mt.

Steps To Reproduce

  1. Create new bucket ais create ais://kpTest2

  2. Check bucket properties

ais bucket props show ais://kpTest2
PROPERTY			 VALUE
access				 GET,HEAD-OBJECT,PUT,APPEND,DELETE-OBJECT,MOVE-OBJECT,PROMOTE,UPDATE-OBJECT,HEAD-BUCKET,LIST-OBJECTS,PATCH,SET-BUCKET-ACL,LIST-BUCKETS,SHOW-CLUSTER,CREATE-BUCKET,DESTROY-BUCKET,MOVE-BUCKET,ADMIN
backend_bck.name		 
backend_bck.provider		 
checksum.enable_read_range	 false
checksum.type			 md5
checksum.validate_cold_get	 true
checksum.validate_obj_move	 false
checksum.validate_warm_get	 false
created				 2024-09-15T20:01:03+03:00
ec.bundle_multiplier		 0
ec.compression			 never
ec.data_slices			 2
ec.disk_only			 false
ec.enabled			 true
ec.objsize_limit		 262144
ec.parity_slices		 1
features			 none
lru.capacity_upd_time		 10m
lru.dont_evict_time		 2h0m
lru.enabled			 false
mirror.burst_buffer		 1024
mirror.copies			 2
mirror.enabled			 false
present				 yes
provider			 ais
versioning.enabled		 true
versioning.synchronize		 false
versioning.validate_warm_get	 false
write_policy.data		 immediate
write_policy.md			 immediate
  1. Create file dd if=/dev/urandom of=big1 bs=2062144 count=1

  2. Upload file ais object put big1 ais://kpTest2/

  3. Check file properties

ais object show --all ais://kpTest2/big1
PROPERTY	 VALUE
atime		 15 Sep 24 20:11 MSK
checksum	 md5[0f0f666688326c94...]
copies		 1 [/ais/sda]
custom		 -
ec		 2:1 (gen 16078549426820157)[encoded]
location	 t[ais-dev-target-3]:mp[/ais/sda, fs=/dev/drbd1300, "/dev/drbd1300"]
name		 ais://kpTest2/big1
size		 1.97MiB
version		 1
  1. Find ec on another target
[root@ais-dev-target-2 kpTest2]# ls -la /ais/sda/@ais/kpTest2/%*/
/ais/sda/@ais/kpTest2/%ds/:
total 0
drwxr-x--- 2 root root  6 Sep 15 20:01 .
drwxr-x--- 8 root root 72 Sep 15 20:01 ..

/ais/sda/@ais/kpTest2/%dw/:
total 0
drwxr-x--- 2 root root  6 Sep 15 20:01 .
drwxr-x--- 8 root root 72 Sep 15 20:01 ..

/ais/sda/@ais/kpTest2/%ec/:
total 10804
drwxr-x--- 2 root root       36 Sep 15 20:11 .
drwxr-x--- 8 root root       72 Sep 15 20:01 ..
-rw-r----- 1 root root  1031072 Sep 15 20:11 big1
-rw-r----- 1 root root 10031072 Sep 15 20:11 illionora1

/ais/sda/@ais/kpTest2/%mt/:
total 12
drwxr-x--- 2 root root  57 Sep 15 20:11 .
drwxr-x--- 8 root root  72 Sep 15 20:01 ..
-rw-r----- 1 root root 198 Sep 15 20:11 4ggillionora1
-rw-r----- 1 root root 231 Sep 15 20:11 big1
-rw-r----- 1 root root 231 Sep 15 20:11 illionora1

/ais/sda/@ais/kpTest2/%ob/:
total 4194304
drwxr-x--- 2 root root         27 Sep 15 20:11 .
drwxr-x--- 8 root root         72 Sep 15 20:01 ..
-rw-r----- 1 root root 4294967296 Sep 15 20:11 4ggillionora1

/ais/sda/@ais/kpTest2/%wk/:
total 0
drwxr-x--- 2 root root  6 Sep 15 20:11 .
drwxr-x--- 8 root root 72 Sep 15 20:01 ..
  1. Delete ec and mt from target above [root@ais-dev-target-2 kpTest2] rm -f /ais/sda/@ais/kpTest2/%ec/big1 && rm -f /ais/sda/@ais/kpTest2/%mt/big1

  2. Run validate

[root@ais-dev-admin-9k6lf downloads]# ais storage validate ais://kpTest2
BUCKET		 OBJECTS	 MISPLACED	 MISSING COPIES
ais://kpTest2	 3		 0		 0
  1. Check ec, mt - not exists for file big1
[root@ais-dev-target-2 kpTest2]# ls -la /ais/sda/@ais/kpTest2/%*/
/ais/sda/@ais/kpTest2/%ds/:
total 0
drwxr-x--- 2 root root  6 Sep 15 20:01 .
drwxr-x--- 8 root root 72 Sep 15 20:01 ..

/ais/sda/@ais/kpTest2/%dw/:
total 0
drwxr-x--- 2 root root  6 Sep 15 20:01 .
drwxr-x--- 8 root root 72 Sep 15 20:01 ..

/ais/sda/@ais/kpTest2/%ec/:
total 10804
drwxr-x--- 2 root root       36 Sep 15 20:11 .
drwxr-x--- 8 root root       72 Sep 15 20:01 ..
-rw-r----- 1 root root 10031072 Sep 15 20:11 illionora1

/ais/sda/@ais/kpTest2/%mt/:
total 12
drwxr-x--- 2 root root  57 Sep 15 20:11 .
drwxr-x--- 8 root root  72 Sep 15 20:01 ..
-rw-r----- 1 root root 198 Sep 15 20:11 4ggillionora1
-rw-r----- 1 root root 231 Sep 15 20:11 illionora1

/ais/sda/@ais/kpTest2/%ob/:
total 4194304
drwxr-x--- 2 root root         27 Sep 15 20:11 .
drwxr-x--- 8 root root         72 Sep 15 20:01 ..
-rw-r----- 1 root root 4294967296 Sep 15 20:11 4ggillionora1

/ais/sda/@ais/kpTest2/%wk/:
total 0
drwxr-x--- 2 root root  6 Sep 15 20:11 .
drwxr-x--- 8 root root 72 Sep 15 20:01 ..
  1. Try rebalance ais cluster rebalance start Started global rebalance. To monitor the progress, run 'ais show rebalance'

  2. Rebalance is finished, ec and mt of big1 does not appear..

[root@ais-dev-admin-9k6lf ois]# ais show rebalance --all
REB ID   NODE               OBJECTS RECV   SIZE RECV   OBJECTS SENT   SIZE SENT   START      END        STATE
g41      ais-dev-target-0   0              0B          4              38.27MiB    21:55:40   21:56:06   Finished
g41      ais-dev-target-1   1              0B          0              0B          21:55:40   21:56:09   Finished
g41      ais-dev-target-2   2              144B        0              0B          21:55:40   21:56:08   Finished
g41      ais-dev-target-3   2              19.13MiB    3              0B          21:55:40   21:56:09   Finished
g41      ais-dev-target-4   1              0B          2              288B        21:55:40   21:56:09   Finished
                                                                                                           
g40      ais-dev-target-1   0              0B          0              0B          21:09:53   21:13:36   Finished
                                                                                                           
g38      ais-dev-target-0   0              0B          4              38.27MiB    20:49:18   20:49:44   Finished
g38      ais-dev-target-2   2              144B        0              0B          20:49:18   20:49:46   Finished
g38      ais-dev-target-3   2              19.13MiB    3              0B          20:49:18   20:49:47   Finished
g38      ais-dev-target-4   1              0B          2              288B        20:49:18   20:49:47   Finished
                                                                                                           
g37      ais-dev-target-0   2              19.13MiB    4              19.13MiB    20:47:25   20:47:54   Finished
g37      ais-dev-target-2   3              144B        0              0B          20:47:25   20:47:54   Finished
g37      ais-dev-target-3   0              0B          4              38.27MiB    20:47:25   20:47:52   Finished
g37      ais-dev-target-4   1              9.57MiB     4              288B        20:47:25   20:47:54   Finished
                                                                                                           
g36      ais-dev-target-3   0              0B          0              0B          20:40:38   20:44:20   Finished
                                                                                                           
g35      ais-dev-target-0   0              0B          0              0B          13:03:25   13:03:51   Finished
g35      ais-dev-target-2   1              144B        0              0B          13:03:25   13:03:53   Finished
g35      ais-dev-target-4   0              0B          2              288B        13:03:25   13:03:52   Finished
                                                                                                           
g34      ais-dev-target-0   0              0B          0              0B          13:02:07   13:02:33   Finished
g34      ais-dev-target-2   1              144B        0              0B          13:02:07   13:02:36   Finished
g34      ais-dev-target-4   0              0B          2              288B        13:02:07   13:02:34   Finished
                                                                                                           
g33      ais-dev-target-0   0              0B          0              0B          13:00:03   13:00:29   Finished
g33      ais-dev-target-2   0              0B          2              288B        13:00:03   13:00:30   Finished
g33      ais-dev-target-4   1              144B        0              0B          13:00:03   13:00:32   Finished
                                                                                                           
g31      ais-dev-target-0   0              0B          0              0B          00:28:45   00:29:12   Finished
g31      ais-dev-target-2   0              0B          0              0B          00:28:45   00:29:12   Finished
g31      ais-dev-target-4   0              0B          0              0B          00:28:45   00:29:12   Finished
                                                                                                           
g27      ais-dev-target-4   0              0B          0              0B          00:24:00   00:24:26   Finished

Possible Solution

No response

Additional Information/Context

No response

AIStore build/version

3.23

Environment details (OS name and version, etc.)

alma9.2, k8s

quasar5935 avatar Sep 15 '24 19:09 quasar5935