[Gluster-users] A Problem of readdir-optimize

Paul flypen at gmail.com
Fri Dec 29 13:44:45 UTC 2017


Hi Nithya,

GlusterFS version is 3.11.0, and  we use the native client of GlusterFS.
Please see the below information.

$gluster v info vol

Volume Name: vol
Type: Distributed-Replicate
Volume ID: d59bd014-3b8b-411a-8587-ee36d254f755
Status: Started
Snapshot Count: 0
Number of Bricks: 90 x 2 = 180
Transport-type: tcp,rdma
Bricks:
...

Options Reconfigured:
performance.force-readdirp: false
dht.force-readdirp: off
performance.read-ahead: on
performance.client-io-threads: on
diagnostics.client-sys-log-level: CRITICAL
cluster.entry-self-heal: on
cluster.metadata-self-heal: on
cluster.data-self-heal: on
cluster.self-heal-daemon: enable
performance.readdir-ahead: on
diagnostics.client-log-level: INFO
diagnostics.brick-log-level: INFO
cluster.lookup-unhashed: on
performance.parallel-readdir: on
cluster.readdir-optimize: off
performance.write-behind-window-size: 32MB
performance.cache-refresh-timeout: 5
features.inode-quota: off
features.quota: off
user.ftp.anon: NO
user.vol.snapshot: enable
user.nfsganesha: enable
features.trash-internal-op: off
features.trash: off
diagnostics.stats-dump-interval: 10
server.event-threads: 16
client.event-threads: 8
server.keepalive-count: 1
server.keepalive-interval: 1
server.keepalive-time: 2
transport.keepalive: 1
client.keepalive-count: 1
client.keepalive-interval: 1
client.keepalive-time: 2
features.cache-invalidation: off
network.ping-timeout: 30
user.smb.guest: no
user.id: 8148
nfs.disable: on
snap-activate-on-create: enable

Thanks,
Paul

On Thu, Dec 28, 2017 at 11:25 PM, Nithya Balachandran <nbalacha at redhat.com>
wrote:

> Hi Paul,
>
> A few questions:
> What type of volume is this and what client protocol are you using?
> What version of Gluster are you using?
>
> Regards,
> Nithya
>
> On 28 December 2017 at 20:09, Paul <flypen at gmail.com> wrote:
>
>> Hi, All,
>>
>> If I set cluster.readdir-optimize to on, the performance of "ls" is
>> better, but I find one problem.
>>
>> # ls
>> # ls
>> files.1  files.2 file.3
>>
>> I run ls twice. At the first time, ls returns nothing. At the second
>> time, ls returns all file names.
>>
>> If turn off cluster.readdir-optimize, I don't see this problem.
>>
>> Is there a way to solve this problem? If ls doesn't return the correct
>> file names,
>>
>> Thanks,
>> Paul
>>
>> _______________________________________________
>> Gluster-users mailing list
>> Gluster-users at gluster.org
>> http://lists.gluster.org/mailman/listinfo/gluster-users
>>
>
>
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