Re: [Gluster-devel] Gluster AFR volume write performance has been seriously affected by GLUSTERFS_WRITE_IS_APPEND in afr_writev

2016-01-20 Thread Pranith Kumar Karampuri
Sorry for the delay in response. On 01/15/2016 02:34 PM, li.ping...@zte.com.cn wrote: GLUSTERFS_WRITE_IS_APPEND Setting in afr_writev function at glusterfs client end makes the posix_writev in the server end deal IO write fops from parallel to serial in consequence. i.e. multiple

[Gluster-devel] Gluster AFR volume write performance has been seriously affected by GLUSTERFS_WRITE_IS_APPEND in afr_writev

2016-01-15 Thread li . ping288
GLUSTERFS_WRITE_IS_APPEND Setting in afr_writev function at glusterfs client end makes the posix_writev in the server end deal IO write fops from parallel to serial in consequence. i.e. multiple io-worker threads carrying out IO write fops are blocked in posix_writev to execute final write