Bug 1449684 – rchecksum is not shown in profile info

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Bug 1449684 - rchecksum is not shown in profile info

Summary:	rchecksum is not shown in profile info

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Gluster Storage
Classification:	Red Hat
Component:	core (Show other bugs)
Sub Component:
Version:	3.3
Hardware:	Unspecified Unspecified

Priority	unspecified Severity unspecified
Target Milestone:	---
Target Release:	RHGS 3.3.0
Assigned To:	Ravishankar N
QA Contact:	Vinayak Papnoi
Docs Contact:

URL:
Whiteboard:
Keywords:

Depends On:
Blocks:	1417151
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Reported:	2017-05-10 08:47 EDT by Ravishankar N
Modified:	2017-09-21 00:41 EDT (History)
CC List:	3 users (show)

See Also:
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 00:41:45 EDT
Type:	Bug
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHBA-2017:2774	normal	SHIPPED_LIVE	glusterfs bug fix and enhancement update	2017-09-21 04:16:29 EDT

Groups: None (edit)

Description Ravishankar N 2017-05-10 08:47:49 EDT

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 08:53:10 EDT

Patch: https://code.engineering.redhat.com/gerrit/#/c/105802/

Comment 6 Vinayak Papnoi 2017-06-15 07:49:42 EDT

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 06:42:47 EDT

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 00:41:45 EDT

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

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