Bug 1677145 - Swap and memory usage have been continuously increased by glusterfs native client
Summary: Swap and memory usage have been continuously increased by glusterfs native cl...
Keywords:
Status: CLOSED WORKSFORME
Alias: None
Product: Red Hat Gluster Storage
Classification: Red Hat Storage
Component: glusterfs
Version: rhgs-3.3
Hardware: x86_64
OS: Linux
medium
medium
Target Milestone: ---
: ---
Assignee: Amar Tumballi
QA Contact: Bala Konda Reddy M
URL:
Whiteboard:
Depends On: RHGS34MemoryLeak
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-02-14 06:58 UTC by Kenichiro Kagoshima
Modified: 2019-05-21 04:50 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
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Clone Of:
Environment:
Last Closed: 2019-05-21 04:50:08 UTC
Embargoed:

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Comment 4 Amar Tumballi 2019-02-20 10:02:12 UTC 
This is a common symptom observed when we don't have lru-limit. bz#1511779, which is proposed for 3.4.4 should resolve this issue.


If customer is not ready to upgrade yet, I recommend them to switch off 'io-cache' based on 2 factors to reduce the memory increase impact.

#1.
> [io-cache.priv]
> page_size=131072
> cache_size=33554432
> cache_used=3781612435840
> inode_count=27512
> cache_timeout=1
> min-file-size=0
> max-file-size=0

The above looks too high, hopefully disabling should help.

#2. https://bugzilla.redhat.com/show_bug.cgi?id=1665029
Comment 8 Amar Tumballi 2019-02-27 03:06:57 UTC 
Sorry for missing it out earlier. In our testing, we haven't seen any major impact to server due to turning of 'io-cache'. Please go ahead.
Comment 13 Amar Tumballi 2019-05-21 04:50:08 UTC 
https://bugzilla.redhat.com/show_bug.cgi?id=1685361 opened for tracking the pending issue of io-cache showing higher value. The current issues are resolved with comment#8, and also the lru-limit patch in RHGS-3.4.4. Will be closing as WORKSFORME.
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