[Bugs] [Bug 1175214] [RFE] Rebalance Performance Improvements

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1175214



--- Comment #5 from Susant Kumar Palai <spalai at redhat.com> ---
Ran rebalance on the same large data set. Added one replica pair to a 3 * 2
volume.

[root at gprfs029 ~]# gluster v i

Volume Name: rbperf
Type: Distributed-Replicate
Volume ID: abe337be-5c53-42b3-8de1-c0637341596f
Status: Started
Snap Volume: no
Number of Bricks: 4 x 2 = 8
Transport-type: tcp
Bricks:
Brick1: gprfs029.sbu.lab.eng.bos.redhat.com:/bricks/gprfs029/brick1
Brick2: gprfs029.sbu.lab.eng.bos.redhat.com:/bricks/gprfs029/brick2
Brick3: gprfs030.sbu.lab.eng.bos.redhat.com:/bricks/gprfs030/brick1
Brick4: gprfs030.sbu.lab.eng.bos.redhat.com:/bricks/gprfs030/brick2
Brick5: gprfs031.sbu.lab.eng.bos.redhat.com:/brick/lv_brick01
Brick6: gprfs031.sbu.lab.eng.bos.redhat.com:/brick/lv_brick02
Brick7: gprfs032.sbu.lab.eng.bos.redhat.com:/brick/lv_brick01
Brick8: gprfs032.sbu.lab.eng.bos.redhat.com:/brick/lv_brick02
Options Reconfigured:
performance.readdir-ahead: on
snap-max-hard-limit: 256
snap-max-soft-limit: 90
auto-delete: disable
[root at gprfs029 ~]# gluster v rebalance rbperf status
                                    Node Rebalanced-files          size      
scanned      failures       skipped               status   run time in secs
                               ---------      -----------   -----------  
-----------   -----------   -----------         ------------     --------------
                               localhost               85        85.0GB        
 1050             0            37            completed            3162.00
     gprfs030.sbu.lab.eng.bos.redhat.com               65        65.0GB        
 1031             0             0            completed            2861.00
     gprfs031.sbu.lab.eng.bos.redhat.com                1         1.0GB        
  968             0            69            completed              71.00
     gprfs032.sbu.lab.eng.bos.redhat.com                0        0Bytes        
  965             0             0            completed              14.00
volume rebalance: rbperf: success: 


Rebalance took around 53 minutes.

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