Hi, Hi,
I have a newly setup gluster file service used as a shared storage where the content management system uses it as document root. I have run in to a performance issue with the gluster/fuse client. Looking for your thoughts and experience in resolving Gluster performance issues: Gluster Infrastructure Gluster version :GlusterFS 3.7.6 2 gluster nodes of the same config below Redhat EL7.0-64 Memory : 4GB Processor : 2 x 2.0 Ghz Network : 100 Mbps File Storage Volume : NETAPP Storage LUN with 2.0 IOPS/GB Gluster Volume information: [root@GlusterFileServe1 ~]# gluster volume info Volume Name: prodcmsroot Type: Replicate Volume ID: f1284bf0-1939-46f9-a672-a7716e362947 Status: Started Number of Bricks: 1 x 2 = 2 Transport-type: tcp Bricks: Brick1: Server1:/glusterfs/brick1/prodcmsroot Brick2: Server2:/glusterfs/brick1/prodcmsroot Options Reconfigured: performance.io-thread-count: 64 performance.cache-size: 1073741824 performance.readdir-ahead: on performance.write-behind-window-size: 524288 [root@GlusterFileServe1 ~]# The replication between Gluster node are quick and consistent. The apache webservers are accessing the Gluster volume using native gluster fuse client and located in the same VLAN as the Gluster Server. GlusterFileServe1:/prodcmsroot /mnt/glusterfs glusterfs direct-io-mode=disable,defaults,_netdev 0 0 The server utilization (memory,cpu,network and disk 1/0) is relatively low I am experiencing very slow performance while copying multiple file/folders (approx 75 MB) and it takes atleast approx 35 min. Even copy a folder (with multiple files/subfolders) within the Gluster volume take the same time. However, if I do dd to check the copy speed, I get the below result. [root@ClientServer ~]# time sh -c "dd if=/dev/zero of=/mnt/testmount/test.tmp bs=4k count=20000 && sync" 20000+0 records in 20000+0 records out 81920000 bytes (82 MB) copied, 17.1357 s, 4.8 MB/s real 0m17.337s user 0m0.031s sys 0m0.317s Anyone who faced similar experience and resolved, please let me know your thoughts. Cheers -- Cheers Shrikanth
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