Bug 1306967 - [tiering]: FUSE I/O hangs for >15 hours after attaching a tier
[tiering]: FUSE I/O hangs for >15 hours after attaching a tier
Status: NEW
Product: Red Hat Gluster Storage
Classification: Red Hat
Component: tier (Show other bugs)
3.1
Unspecified Unspecified
unspecified Severity medium
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Assigned To: Mohammed Rafi KC
nchilaka
tier-fuse-nfs-samba
: ZStream
Depends On:
Blocks:
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Reported: 2016-02-12 05:18 EST by Sweta Anandpara
Modified: 2017-11-03 13:20 EDT (History)
2 users (show)

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Description Sweta Anandpara 2016-02-12 05:18:44 EST
Description of problem:
Had a 16 node setup, with a 6*2 volume 'testvol'. Ran FUSE I/O from clients and that went through. Did an attach tier 2*2, and it resulted in hanging of IO from fuse mounts. 'ls' on the mountpoint hanged as well. Rafi had a look at the setup. Disabled nfs on the volume, and I was able to regain the access of the mountpoints. 

Please note I had no NFS I/O running, or any of the NFS mounts active. 

Hit this while running the automated script 'attach_tier_trigger_rebalance' in tiering suite. 

Version-Release number of selected component (if applicable):
3.7.5-19

How reproducible: Hit it once

Additional info:
Sosreports will be copied to http://rhsqe-repo.lab.eng.blr.redhat.com/sosreports/<bugnumber>

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