From 1a95fc3036db51b82b6a80952f0908bc2019d24a Mon Sep 17 00:00:00 2001 From: Jeff Darcy Date: Thu, 8 Dec 2016 16:24:15 -0500 Subject: core: run many bricks within one glusterfsd process This patch adds support for multiple brick translator stacks running in a single brick server process. This reduces our per-brick memory usage by approximately 3x, and our appetite for TCP ports even more. It also creates potential to avoid process/thread thrashing, and to improve QoS by scheduling more carefully across the bricks, but realizing that potential will require further work. Multiplexing is controlled by the "cluster.brick-multiplex" global option. By default it's off, and bricks are started in separate processes as before. If multiplexing is enabled, then *compatible* bricks (mostly those with the same transport options) will be started in the same process. Change-Id: I45059454e51d6f4cbb29a4953359c09a408695cb BUG: 1385758 Signed-off-by: Jeff Darcy Reviewed-on: https://review.gluster.org/14763 Smoke: Gluster Build System NetBSD-regression: NetBSD Build System CentOS-regression: Gluster Build System Reviewed-by: Vijay Bellur --- xlators/mgmt/glusterd/src/glusterd-volgen.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'xlators/mgmt/glusterd/src/glusterd-volgen.c') diff --git a/xlators/mgmt/glusterd/src/glusterd-volgen.c b/xlators/mgmt/glusterd/src/glusterd-volgen.c index f5ddef4755d..957bbfcee25 100644 --- a/xlators/mgmt/glusterd/src/glusterd-volgen.c +++ b/xlators/mgmt/glusterd/src/glusterd-volgen.c @@ -1516,6 +1516,8 @@ brick_graph_add_posix (volgen_graph_t *graph, glusterd_volinfo_t *volinfo, out: return ret; } + +#if 0 static int brick_graph_add_trash (volgen_graph_t *graph, glusterd_volinfo_t *volinfo, dict_t *set_dict, glusterd_brickinfo_t *brickinfo) @@ -1538,6 +1540,7 @@ brick_graph_add_trash (volgen_graph_t *graph, glusterd_volinfo_t *volinfo, out: return ret; } +#endif static int brick_graph_add_decompounder (volgen_graph_t *graph, glusterd_volinfo_t *volinfo, @@ -2456,7 +2459,11 @@ static volgen_brick_xlator_t server_graph_table[] = { {brick_graph_add_changetimerecorder, "changetimerecorder"}, #endif {brick_graph_add_bd, "bd"}, + /* + * TBD: Figure out why trash breaks multiplexing. AFAICT it should fail + * the same way already. {brick_graph_add_trash, "trash"}, + */ {brick_graph_add_arbiter, "arbiter"}, {brick_graph_add_posix, "posix"}, }; -- cgit