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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 /xlators/cluster/afr/src/afr.c
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 'xlators/cluster/afr/src/afr.c')
-rw-r--r--xlators/cluster/afr/src/afr.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/xlators/cluster/afr/src/afr.c b/xlators/cluster/afr/src/afr.c
index 1df45b5a68f..ceaa034dbbb 100644
--- a/xlators/cluster/afr/src/afr.c
+++ b/xlators/cluster/afr/src/afr.c
@@ -89,6 +89,10 @@ static void
fix_quorum_options (xlator_t *this, afr_private_t *priv, char *qtype,
dict_t *options)
{
+
+ gf_log (this->name, GF_LOG_INFO,
+ "reindeer: incoming qtype = %s", qtype);
+
if (dict_get (options, "quorum-type") == NULL) {
/* If user doesn't configure anything enable auto-quorum if the
* replica has more than two subvolumes */
@@ -107,6 +111,9 @@ fix_quorum_options (xlator_t *this, afr_private_t *priv, char *qtype,
} else if (!strcmp (qtype, "auto")) {
priv->quorum_count = AFR_QUORUM_AUTO;
}
+
+ gf_log (this->name, GF_LOG_INFO,
+ "reindeer: quorum_count = %d", priv->quorum_count);
}
int