diff options
| author | Jeff Darcy <jdarcy@redhat.com> | 2017-01-31 14:49:45 -0500 |
|---|---|---|
| committer | Shyamsundar Ranganathan <srangana@redhat.com> | 2017-02-01 19:54:58 -0500 |
| commit | 83803b4b2d70e9e6e16bb050d7ac8e49ba420893 (patch) | |
| tree | 9a6c1f3f9a723bf578f78c624d3ce9f44baac6db /libglusterfs/src/xlator.h | |
| parent | 80b04666ec7019e132f76f734a88559457702f1b (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.
Backport of:
> Change-Id: I45059454e51d6f4cbb29a4953359c09a408695cb
> BUG: 1385758
> Reviewed-on: https://review.gluster.org/14763
Change-Id: I4bce9080f6c93d50171823298fdf920258317ee8
BUG: 1418091
Signed-off-by: Jeff Darcy <jdarcy@redhat.com>
Reviewed-on: https://review.gluster.org/16496
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: Shyamsundar Ranganathan <srangana@redhat.com>
Diffstat (limited to 'libglusterfs/src/xlator.h')
| -rw-r--r-- | libglusterfs/src/xlator.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/libglusterfs/src/xlator.h b/libglusterfs/src/xlator.h index e28790cc034..1e2698bb61f 100644 --- a/libglusterfs/src/xlator.h +++ b/libglusterfs/src/xlator.h @@ -950,6 +950,9 @@ struct _xlator { /* for the memory pool of 'frame->local' */ struct mem_pool *local_pool; gf_boolean_t is_autoloaded; + + /* Saved volfile ID (used for multiplexing) */ + char *volfile_id; }; typedef struct { @@ -1004,6 +1007,8 @@ void xlator_foreach_depth_first (xlator_t *this, void *data); xlator_t *xlator_search_by_name (xlator_t *any, const char *name); +xlator_t *get_xlator_by_name (xlator_t *this, char *target); +xlator_t *get_xlator_by_type (xlator_t *this, char *target); void xlator_set_inode_lru_limit (xlator_t *this, void *data); @@ -1050,5 +1055,7 @@ xlator_subvolume_count (xlator_t *this); void xlator_init_lock (void); void xlator_init_unlock (void); +int +copy_opts_to_child (xlator_t *src, xlator_t *dst, char *glob); #endif /* _XLATOR_H */ |