Bug 765300 (GLUSTER-3568)

Summary: rebalance operation failed where as glusterd log shows succeeded and core dumped
Product: [Community] GlusterFS Reporter: shylesh <shylesh>
Component: glusterdAssignee: Amar Tumballi <amarts>
Status: CLOSED CURRENTRELEASE QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: pre-releaseCC: gluster-bugs, vraman
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---
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Description Flags
mount log
none
glusterd none

Description shylesh 2011-09-16 00:03:01 EDT 
Created attachment 662
Comment 1 shylesh 2011-09-16 01:45:41 EDT 
This scenario also happens on distribute setup.
Comment 2 shylesh 2011-09-16 03:02:11 EDT 
1. Create a stripe volume with count 2 
2. fill up the volume with few files
3. add 2 more bricks and initiate rebalance

Bug
----
status initially shows fix-layout progress and migration. After sometime status says rebalance failed.

(attached the logs)
Comment 3 shylesh 2011-09-27 06:28:31 EDT 
warning from valgrind logs

Thread 1:
==2375== Syscall param writev(vector[...]) points to uninitialised byte(s)
==2375==    at 0x3AA38CD293: writev (in /lib64/libc-2.5.so)
==2375==    by 0x62E457E: send_fuse_iov (fuse-bridge.c:59)
==2375==    by 0x62E46EC: send_fuse_data (fuse-bridge.c:95)
==2375==    by 0x62E5E6C: fuse_attr_cbk (fuse-bridge.c:402)
==2375==    by 0x62E603D: fuse_root_lookup_cbk (fuse-bridge.c:434)
==2375==    by 0xC0AC0EA: io_stats_lookup_cbk (io-stats.c:1415)
==2375==    by 0xBE843F9: sp_lookup_cbk (stat-prefetch.c:919)
==2375==    by 0xBC68548: qr_lookup_cbk (quick-read.c:440)
==2375==    by 0xBA54DF6: ioc_lookup_cbk (io-cache.c:266)
==2375==    by 0x4C29A75: default_lookup_cbk (defaults.c:46)
==2375==    by 0x4C29A75: default_lookup_cbk (defaults.c:46)
==2375==    by 0xB3FC655: dht_revalidate_cbk (dht-common.c:420)
==2375==  Address 0x7fefffa6c is on thread 1's stack
==2375==
==2375== Warning: client switching stacks?  SP change: 0xccbb0d8 --> 0x17841028
==2375==          to suppress, use: --max-stackframe=179855184 or greater
==2375== Warning: client switching stacks?  SP change: 0xccbb0d8 --> 0x17840aa0
==2375==          to suppress, use: --max-stackframe=179853768 or greater
==2375== Warning: client switching stacks?  SP change: 0x178409b8 --> 0xccbb0e0
==2375==          to suppress, use: --max-stackframe=179853528 or greater
==2375==          further instances of this message will not be shown.
==2375==
Comment 4 Amar Tumballi 2011-10-02 18:56:54 EDT 
With bug 765368 getting fixed, the coredump issue seems to be fixed. Please reopen if seen again.