From af89d9e623cd99d3cec55cd650304d7ff9fae7e5 Mon Sep 17 00:00:00 2001 From: Pranith Kumar K Date: Fri, 29 May 2020 14:24:53 +0530 Subject: cluster/afr: Delay post-op for fsync Problem: AFR doesn't delay post-op for fsync fop. For fsync heavy workloads this leads to un-necessary fxattrop/finodelk for every fsync leading to bad performance. Fix: Have delayed post-op for fsync. Add special flag in xdata to indicate that afr shouldn't delay post-op in cases where either the process will terminate or graph-switch would happen. Otherwise it leads to un-necessary heals when the graph-switch/process-termination happens before delayed-post-op completes. Fixes: #1253 Change-Id: I531940d13269a111c49e0510d49514dc169f4577 Signed-off-by: Pranith Kumar K --- xlators/cluster/afr/src/afr-inode-write.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'xlators/cluster/afr/src/afr-inode-write.c') diff --git a/xlators/cluster/afr/src/afr-inode-write.c b/xlators/cluster/afr/src/afr-inode-write.c index c01b4131d58..1d6e4f3570a 100644 --- a/xlators/cluster/afr/src/afr-inode-write.c +++ b/xlators/cluster/afr/src/afr-inode-write.c @@ -2506,6 +2506,7 @@ afr_fsync(call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t datasync, call_frame_t *transaction_frame = NULL; int ret = -1; int32_t op_errno = ENOMEM; + int8_t last_fsync = 0; AFR_ERROR_OUT_IF_FDCTX_INVALID(fd, this, op_errno, out); transaction_frame = copy_frame(frame); @@ -2516,10 +2517,16 @@ afr_fsync(call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t datasync, if (!local) goto out; - if (xdata) + if (xdata) { local->xdata_req = dict_copy_with_ref(xdata, NULL); - else + if (dict_get_int8(xdata, "last-fsync", &last_fsync) == 0) { + if (last_fsync) { + local->transaction.disable_delayed_post_op = _gf_true; + } + } + } else { local->xdata_req = dict_new(); + } if (!local->xdata_req) goto out; -- cgit