Re: Low performance of Gluster

Felix Kölzow <felix.koelzow@xxxxxx> · Wed, 19 Feb 2020 12:36:58 +0100

    Dear Mark,
    we have also a gluster 3 node setup with a replica-3-volume which
      is exported via cifs, and two dispersed volumes which
    are exported via cifs and fuse. As already known, the small file
      performance could be better. Larger file performance is ok.
    We have similar volume options reconfigured. 

    Could you provide more information, e.g. workload and file size
      and your disk setup would be nice to know. 

    Regards,
    Felix

    On 19/02/2020 12:29, Cloud Udupi wrote:

            Hi,

              I'm new to glusterfs. We have 3 server setup with 3
                  replica. We have created 4 volumes and exported those
                  over NFS - Ganesha. On client server we are getting
                  very slow speed. Highest speed we are getting is 300 KB/s.
              Gone through some
                  GlusterFS performance tuning documents but still low
                  speed. 

              These
                      are the options that I have reconfigured;

                performance.cache-size:
                    1GB
                performance.io-thread-count:
                    16
                performance.readdir-ahead:
                    enable
                performance.read-ahead:
                    disable
                performance.write-behind-window-size:
                    1MB
                cluster.lookup-optimize:
                    on
                client.event-threads:
                    8
                server.event-threads:
                    8
                cluster.readdir-optimize:
                    on
                features.cache-invalidation:
                    on
                features.cache-invalidation-timeout:
                    600
                performance.stat-prefetch:
                    on
                performance.cache-invalidation:
                    on
                performance.md-cache-timeout:
                    600
                network.inode-lru-limit:
                    1000000
                cluster.quorum-type:
                    auto
                cluster.server-quorum-type:
                    server
                performance.client-io-threads:
                    on
                nfs.disable: on
                storage.fips-mode-rchecksum:
                    on
                transport.address-family:
                    inet
                cluster.self-heal-daemon:
                    enable

                Please help.

                Regards,
                Mark.

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