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authorJeff Darcy <jdarcy@redhat.com>2016-12-08 16:24:15 -0500
committerVijay Bellur <vbellur@redhat.com>2017-01-30 19:13:58 -0500
commit1a95fc3036db51b82b6a80952f0908bc2019d24a (patch)
treeb983ac196a8165d5cb5e860a5ef97d3e9a41b5c9 /libglusterfs/src/glusterfs.h
parent7f7d7a939e46b330a084d974451eee4757ba61b4 (diff)
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 <jdarcy@redhat.com> Reviewed-on: https://review.gluster.org/14763 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Diffstat (limited to 'libglusterfs/src/glusterfs.h')
-rw-r--r--libglusterfs/src/glusterfs.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/libglusterfs/src/glusterfs.h b/libglusterfs/src/glusterfs.h
index 0d073154934..4f1f27b5857 100644
--- a/libglusterfs/src/glusterfs.h
+++ b/libglusterfs/src/glusterfs.h
@@ -557,16 +557,19 @@ typedef struct lock_migration_info {
*/
#define SECURE_ACCESS_FILE GLUSTERD_DEFAULT_WORKDIR "/secure-access"
-int glusterfs_graph_prepare (glusterfs_graph_t *graph, glusterfs_ctx_t *ctx);
+int glusterfs_graph_prepare (glusterfs_graph_t *graph, glusterfs_ctx_t *ctx,
+ char *volume_name);
int glusterfs_graph_destroy_residual (glusterfs_graph_t *graph);
int glusterfs_graph_deactivate (glusterfs_graph_t *graph);
int glusterfs_graph_destroy (glusterfs_graph_t *graph);
int glusterfs_get_leaf_count (glusterfs_graph_t *graph);
int glusterfs_graph_activate (glusterfs_graph_t *graph, glusterfs_ctx_t *ctx);
glusterfs_graph_t *glusterfs_graph_construct (FILE *fp);
+int glusterfs_graph_init (glusterfs_graph_t *graph);
glusterfs_graph_t *glusterfs_graph_new (void);
int glusterfs_graph_reconfigure (glusterfs_graph_t *oldgraph,
glusterfs_graph_t *newgraph);
+int glusterfs_graph_attach (glusterfs_graph_t *orig_graph, char *path);
void
gf_free_mig_locks (lock_migration_info_t *locks);