Bug 1222785

Summary: [Virt-RHGS] Creating a image on gluster volume using qemu-img + gfapi throws error messages related to rpc_transport
Product: [Red Hat Storage] Red Hat Gluster Storage Reporter: SATHEESARAN <sasundar>
Component: glusterfs-develAssignee: krishnan parthasarathi <kparthas>
Status: CLOSED ERRATA QA Contact: SATHEESARAN <sasundar>
Severity: high Docs Contact:
Priority: high    
Version: rhgs-3.1CC: amukherj, asrivast, bmohanra, kparthas, nlevinki, nsathyan, rhs-bugs, rwheeler, vagarwal, vbellur
Target Milestone: ---   
Target Release: RHGS 3.1.0   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: glusterfs-3.7.1-2 Doc Type: Bug Fix
Doc Text:
Previously, transport related error messages were displayed on the terminal even when qemu-img create command ran successfully. With this release, there are no transport related error messages on the terminal when qemu-img create command is successful.
 Story Points: ---
Clone Of:
: 1227583 (view as bug list) Environment:
virt RHGS Integration
Last Closed: 2015-07-29 04:43:32 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: 1202842, 1223636, 1227583, 1228601    

Description SATHEESARAN 2015-05-19 07:31:34 UTC 
Description of problem:
-----------------------
While creating VM Image file using qemu-img ( which uses qemu's native driver for gluster ), throws lots of error messages related to RPC_Transport.

The image creation was successful, but the error messages fills up the console.

Version-Release number of selected component (if applicable):
-------------------------------------------------------------
RHEL 6.6 as Hypervisor using,
libvirt-0.10.2-46.el6.x86_64
qemu-kvm-0.12.1.2-2.445.el6.x86_64
qemu-img-0.12.1.2-2.445.el6.x86_64

with RHGS 3.1 Nightly build installed on RHEL 6.6 -
glusterfs-3.7.0-2.el6rhs

How reproducible:
-----------------
Always

Steps to Reproduce:
-------------------
1. Create a VM Image file using 'qemu-img' command
(i.e) qemu-img create -f raw <vm-image-file> 20G

Actual results:
---------------
Observed lots of error messages though the image creation was successful

Expected results:
-----------------
There shouldn't be any error messages seen while creating the image file

Additional info:
----------------
Error message as seen on the console while image creation:
[root@rhs-client10 test]# qemu-img create -f raw gluster://10.70.37.113/rvol/newvm1.img 21G
Formatting 'gluster://10.70.37.113/rvol/newvm1.img', fmt=raw size=22548578304 
[2015-05-19 07:37:01.990771] E [MSGID: 108006] [afr-common.c:3919:afr_notify] 0-rvol-replicate-0: All subvolumes are down. Going offline until atleast one of them comes back up.
[2015-05-19 07:37:01.992058] E [rpc-transport.c:512:rpc_transport_unref] (--> /usr/lib64/libglusterfs.so.0(_gf_log_callingfn+0x1e0)[0x7f8cc0c71fb0] (--> /usr/lib64/libgfrpc.so.0(rpc_transport_unref+0xc0)[0x7f8cc1ad1ec0] (--> /usr/lib64/libgfrpc.so.0(rpc_clnt_unref+0x66)[0x7f8cc1ad39a6] (--> /usr/lib64/libglusterfs.so.0(+0x3054c22a11)[0x7f8cc0c6fa11] (--> /usr/lib64/libglusterfs.so.0(+0x3054c229a5)[0x7f8cc0c6f9a5] ))))) 0-rpc_transport: invalid argument: this
[2015-05-19 07:37:01.992285] E [rpc-transport.c:512:rpc_transport_unref] (--> /usr/lib64/libglusterfs.so.0(_gf_log_callingfn+0x1e0)[0x7f8cc0c71fb0] (--> /usr/lib64/libgfrpc.so.0(rpc_transport_unref+0xc0)[0x7f8cc1ad1ec0] (--> /usr/lib64/libgfrpc.so.0(rpc_clnt_unref+0x66)[0x7f8cc1ad39a6] (--> /usr/lib64/libglusterfs.so.0(+0x3054c22a11)[0x7f8cc0c6fa11] (--> /usr/lib64/libglusterfs.so.0(+0x3054c229a5)[0x7f8cc0c6f9a5] ))))) 0-rpc_transport: invalid argument: this
[2015-05-19 07:37:01.992490] E [rpc-transport.c:512:rpc_transport_unref] (--> /usr/lib64/libglusterfs.so.0(_gf_log_callingfn+0x1e0)[0x7f8cc0c71fb0] (--> /usr/lib64/libgfrpc.so.0(rpc_transport_unref+0xc0)[0x7f8cc1ad1ec0] (--> /usr/lib64/libgfrpc.so.0(rpc_clnt_unref+0x66)[0x7f8cc1ad39a6] (--> /usr/lib64/libglusterfs.so.0(+0x3054c22a11)[0x7f8cc0c6fa11] (--> /usr/lib64/libglusterfs.so.0(+0x3054c229a5)[0x7f8cc0c6f9a5] ))))) 0-rpc_transport: invalid argument: this
Comment 1 SATHEESARAN 2015-05-19 07:33:42 UTC 
I have discussed this issue with Raghavendra Talur and he conveyed the fact that this error messages has no impact on the functionality.

But still it fills the console with lots of errors messages.
Comment 4 SATHEESARAN 2015-06-17 13:26:18 UTC 
Tested with RHGS 3.1 Nightly build ( glusterfs-3.7.1-3.el6rhs ).

1. Created image file with qemu-img-rhev-0.12.1.2-2.448.el6_6.4.x86_64
 and also with qemu-img-0.12.1.2-2.477.el6.x86_64, and there were no rpc_transport related error messages seen.

Marking this bug as VERIFIED
Comment 5 Bhavana 2015-07-25 09:40:10 UTC 
Doc text verified.
Comment 6 errata-xmlrpc 2015-07-29 04:43:32 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHSA-2015-1495.html