Bug 1449684

Summary: rchecksum is not shown in profile info
Product: [Red Hat Storage] Red Hat Gluster Storage Reporter: Ravishankar N <ravishankar>
Component: coreAssignee: Ravishankar N <ravishankar>
Status: CLOSED ERRATA QA Contact: Vinayak Papnoi <vpapnoi>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: rhgs-3.3CC: amukherj, rhs-bugs, storage-qa-internal
Target Milestone: ---   
Target Release: RHGS 3.3.0   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: glusterfs-3.8.4-26 Doc Type: If docs needed, set a value
Doc Text:
Previously, certain FOPs (fentrylk, rchecksum, seek, lease, getactivelk, setactivelk, compound fops) were missing from volume profile info output. These are now captured as expected.
Story Points: ---
Clone Of: Environment:
Last Closed: 2017-09-21 04:41:45 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: 1417151    

Description Ravishankar N 2017-05-10 12:47:49 UTC
Description of problem:
I am facing a lot of customer issues where I see high cpu usage but I am not able to ascertain from the profile info if it is due to the rchecksum which self-heal does. The fix is already available upstream https://review.gluster.org/16490. We need this downstream code also.

Comment 2 Ravishankar N 2017-05-10 12:53:10 UTC
Patch: https://code.engineering.redhat.com/gerrit/#/c/105802/

Comment 6 Vinayak Papnoi 2017-06-15 11:49:42 UTC
gluster build: 3.8.4-26

Did the following to get the profile info:
#create vol-start-mount
#Create a file using "touch f1"
#kill 1 brick using "kill -9 <pid>"
#Write data to the file using "dd if=/dev/zero of=f1 bs=1M count=2"
#Start the volume using volume force
#Check the volume profile info 

Outcome: out of the FOP's mentioned in the doc, only rchecksum was displayed.

      0.00       0.00 us       0.00 us       0.00 us              4     RELEASE
      0.00       0.00 us       0.00 us       0.00 us             10  RELEASEDIR
      0.07       5.33 us       4.00 us       9.00 us              6     OPENDIR
      0.12      58.00 us      58.00 us      58.00 us              1       FLUSH
      0.57     279.00 us     279.00 us     279.00 us              1 REMOVEXATTR
      0.82     397.00 us     397.00 us     397.00 us              1    TRUNCATE
      1.13     275.00 us     231.00 us     319.00 us              2       FSTAT
      1.50     121.33 us      58.00 us     245.00 us              6    FINODELK
      2.03     330.00 us     241.00 us     503.00 us              3        OPEN
      4.22     410.40 us     228.00 us     844.00 us              5     XATTROP
      4.56     201.91 us      47.00 us     868.00 us             11    GETXATTR
      5.64     171.56 us      91.00 us    1042.00 us             16        READ
      6.09     296.60 us     115.00 us     517.00 us             10    FXATTROP
      7.82      88.47 us      43.00 us     347.00 us             43     INODELK
      8.25     267.67 us      50.00 us    1282.00 us             15      LOOKUP
     10.49     425.58 us     347.00 us     618.00 us             12     READDIR
     13.32     405.12 us     307.00 us     637.00 us             16       WRITE
     33.37    1015.06 us     985.00 us    1130.00 us             16   RCHECKSUM
 
    Duration: 269 seconds
   Data Read: 2097152 bytes
Data Written: 2097152 bytes

Comment 7 Vinayak Papnoi 2017-07-28 10:42:47 UTC
Build: 3.8.4-35

Followed the steps mentioned above. As per the result the RCHECKSUM FOP is mentioned in volume profile info.

Hence, moving this bug to VERIFIED.

Comment 9 errata-xmlrpc 2017-09-21 04:41:45 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://access.redhat.com/errata/RHBA-2017:2774