Bug 1475308 - [geo-rep]: few of the self healed hardlinks on master did not sync to slave
[geo-rep]: few of the self healed hardlinks on master did not sync to slave
Status: MODIFIED
Product: GlusterFS
Classification: Community
Component: geo-replication (Show other bugs)
mainline
x86_64 Linux
unspecified Severity urgent
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Assigned To: Kotresh HR
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Depends On: 1474380
Blocks: 1476208 1476212
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Reported: 2017-07-26 08:21 EDT by Kotresh HR
Modified: 2017-07-28 06:05 EDT (History)
8 users (show)

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Clone Of: 1474380
: 1476208 1476212 (view as bug list)
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Type: Bug
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Comment 1 Kotresh HR 2017-07-26 08:22:53 EDT
Description of problem:
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In the following scenario, the sync of hardlinks do not happen to slave. 

Scenario 1:

1. Create geo-rep between master and slave
2. Mount the volume
3. Create a file (file1)
4. Let the file sync to slave
5. kill one set of replica for a subvolume containing file1
6. create a hardlink of file1 (ln file1 file2).=> Ensure that the file2 hashes to the same subvolume of file1
7. Start the master volume forcefully to heal file2 . Wait for heal to happen
8. Kill the other set of the replica (than the step 5)
9. Start the geo-replication

In the above scenario the hardlinks are not synced to slave and there are no errors. 

Scenario 2:

Step 1 to Step 5 remains same
6. create a hardlink of file1 (ln file1 file2).=> Ensure that the file2 hashes to the different subvolume of file1
Step 7 to Step 8 remains same

In this scenario, sync happens as follows:
   a. If both the bricks active are (selfhealed bricks) which has recoreded MKNOD. Sync happens.
   b. If the self healed brick containing MKNOD for sticky bit file becomes PASSIVE, hardlinks are not synced. 


Version-Release number of selected component (if applicable):
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mainline


How reproducible:
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Always with the above steps.
Comment 2 Worker Ant 2017-07-26 08:24:07 EDT
REVIEW: https://review.gluster.org/17880 (geo-rep: Fix syncing of self healed hardlinks) posted (#1) for review on master by Kotresh HR (khiremat@redhat.com)

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