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authorMohammed Rafi KC <rkavunga@redhat.com>2017-05-29 16:00:24 +0530
committerJeff Darcy <jeff@pl.atyp.us>2017-06-08 15:32:30 +0000
commit0a20e56d07de3e467e09da885a6b71cdc165de17 (patch)
tree189ba4075562036bcb0824f247230c5e7e439ecf /xlators/protocol/server
parent513984ad90531c53fcb7d6f0d581f198a6afcf93 (diff)
protocol/server: make listen backlog value as configurable
problem: When we call listen from protocol/server, we are giving a hard coded valie of 10 if it is not manually given. With multiplexing, especially when glusterd restarts all clients may try to connect to the server at a time. Which will result in overflowing the queue, and kernel will complain about the errors. Solution: This patch will introduce a volume set command to make backlog value as a configurable. This patch also changes the default values for backlog from 10 to 128. This changes is only applicable for sockets listening from protocol. Example: gluster volume set <volname> transport.listen-backlog 1024 Note: 1 Brick has to be restarted to get this value in effect 2 This changes won't be reflected in glusterd, or other xlators which calls listen. If you need, you have to add this option to the volfile. Change-Id: I0c5a2bbf28b5db612f9979e7560e05dd82b41477 BUG: 1456405 Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com> Reviewed-on: https://review.gluster.org/17411 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: Raghavendra G <rgowdapp@redhat.com> Reviewed-by: Raghavendra Talur <rtalur@redhat.com> Reviewed-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-by: Niels de Vos <ndevos@redhat.com> Reviewed-by: Jeff Darcy <jeff@pl.atyp.us>
Diffstat (limited to 'xlators/protocol/server')
-rw-r--r--xlators/protocol/server/src/server.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/xlators/protocol/server/src/server.c b/xlators/protocol/server/src/server.c
index 130a55372a6..4d89fe89b2c 100644
--- a/xlators/protocol/server/src/server.c
+++ b/xlators/protocol/server/src/server.c
@@ -1606,6 +1606,10 @@ struct volume_options options[] = {
"socket*([ \t]),*([ \t])rdma"},
.type = GF_OPTION_TYPE_STR
},
+ { .key = {"transport.listen-backlog"},
+ .type = GF_OPTION_TYPE_INT,
+ .default_value = "10",
+ },
{ .key = {"volume-filename.*"},
.type = GF_OPTION_TYPE_PATH,
},