Bug 1319698
| Summary: | Creation of files on hot tier volume taking very long time | ||
|---|---|---|---|
| Product: | [Red Hat Storage] Red Hat Gluster Storage | Reporter: | Joseph Elwin Fernandes <josferna> |
| Component: | tier | Assignee: | sankarshan <sankarshan> |
| Status: | CLOSED ERRATA | QA Contact: | krishnaram Karthick <kramdoss> |
| Severity: | urgent | Docs Contact: | |
| Priority: | urgent | ||
| Version: | rhgs-3.1 | CC: | amukherj, byarlaga, dlambrig, mpillai, nbalacha, nchilaka, rcyriac, rhinduja, rhs-bugs, rmekala, sankarshan, storage-qa-internal |
| Target Milestone: | --- | Keywords: | ZStream |
| Target Release: | RHGS 3.1.3 | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | glusterfs-3.7.9-1 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | 1282729 | Environment: | |
| Last Closed: | 2016-06-23 05:05:05 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: | 1293034, 1293659, 1311817 | ||
|
Comment 4
Atin Mukherjee
2016-03-21 13:21:18 UTC
With the 3.1.3 build 'glusterfs-3.7.9-1.el7rhgs.x86_64', these are the default values set
[root@dhcp47-90 ~]# gluster v get testvol all | grep 'features.ctr-sql-db-wal-autocheckpoint'
features.ctr-sql-db-wal-autocheckpoint 25000
[root@dhcp47-90 ~]# gluster v get testvol all | grep 'features.ctr-sql-db-cachesize'
features.ctr-sql-db-cachesize 12500
This are the expected values.
Additionally,
On a tiered volume [cold tier-2 x(8+4) and hot tier 4x2] creation of 50k files takes 10m50s
tiered vol:
time for i in {1..50000}; do echo $i >> file-$i; done
real 10m50.131s
user 0m4.090s
sys 0m15.571s
On a dist-rep volume(4x2), creation of 50k files takes 6m35s
time for i in {1..50000}; do echo $i >> file-$i; done
real 6m35.411s
user 0m3.838s
sys 0m16.239s
However, Marking this bug as verified as the issue being addressed here is changing the default value of ctr-sql.
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-2016:1240 *** Bug 1319696 has been marked as a duplicate of this bug. *** |