Bug 1394773

Summary: [Perf] : Getting EBADFD in brick logs while running I/O from multiple clients on Ganesha mounts.
Product: [Red Hat Storage] Red Hat Gluster Storage Reporter: Ambarish <asoman>
Component: nfs-ganeshaAssignee: Kaleb KEITHLEY <kkeithle>
Status: CLOSED DUPLICATE QA Contact: Sachin <sashinde>
Severity: high Docs Contact:
Priority: unspecified    
Version: rhgs-3.2CC: asoman, bturner, kdhananj, kkeithle, mzywusko, pkarampu, rhinduja, rhs-bugs, skoduri, storage-qa-internal
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: 1394702 Environment:
Last Closed: 2016-11-16 07:12:35 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1394702    

Comment 2 Krutika Dhananjay 2016-11-15 11:21:19 UTC 
If you look at the following log from the bug report ...

bricks/bricks-testvol_brick3.log:[2016-11-13 18:12:07.130134] E [MSGID: 113072] [posix.c:3380:posix_writev] 0-testvol-posix: write failed: offset 0, [Bad file descriptor]
bricks/bricks-testvol_brick3.log:[2016-11-13 18:12:07.130216] E [MSGID: 115067] [server-rpc-fops.c:1348:server_writev_cbk] 0-testvol-server: 683223: WRITEV 10073 (3bc2aeb8-d197-4f9b-b6d2-c10588e17ba5) ==> (Bad file descriptor) [Bad file descriptor]

... posix translator is where the error originated. Posix attempted a pwrite on an fd and it failed with EBADF.

From the man page:

EBADF  fd is not a valid file descriptor or is not open for writing.

The above only means that posix xl logged a genuine failure.
This should not be mistaken to be a bug in posix translator itself.

I see that the parent bug https://bugzilla.redhat.com/show_bug.cgi?id=1394702 talks about a number of different issues seen on the same setup.

It's quite possible that this log is the result of the combination of those bugs.

Moving the bug back to nfs-ganesha as the bug is clearly not in posix translator, nor should posix be suppressing genuine failures like this which are very useful for debugging.

-Krutika