transport/socket: configuring tcp window-size

Till now, send and recieve buffer window sizes for sockets
were set to a default glusterfs-specific value.
Linux's default window sizes have been found to be better
w.r.t performance, and hence, no more setting it to any
default value.

However, if one wishes, there's the new configuration option:
   network.tcp-window-size <sane_size>
which takes a size value (int or human readable) and will set
the window size of sockets for both clients and servers.
Nfs clients will also be updated with the same.

Change-Id: I841479bbaea791b01086c42f58401ed297ff16ea
BUG: 795635
Signed-off-by: Rajesh Amaravathi <rajesh@redhat.com>
Reviewed-on: http://review.gluster.com/2821
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Amar Tumballi <amarts@redhat.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
Reviewed-by: Vijay Bellur <vijay@gluster.com>

1 files changed, 17 insertions, 14 deletions

diff --git a/xlators/mgmt/glusterd/src/glusterd-op-sm.c b/xlators/mgmt/glusterd/src/glusterd-op-sm.c
index da1299de066..3c1baa7e62e 100644
--- a/xlators/mgmt/glusterd/src/glusterd-op-sm.c
+++ b/xlators/mgmt/glusterd/src/glusterd-op-sm.c
@@ -252,7 +252,7 @@ glusterd_op_stage_set_volume (dict_t *dict, char **op_errstr)
         int                                      ret           = 0;
         char                                    *volname       = NULL;
         int                                      exists        = 0;
-        char                                    *key               = NULL;
+        char                                    *key           = NULL;
         char                                    *key_fixed     = NULL;
         char                                    *value         = NULL;
         char                                     str[100]      = {0, };
@@ -279,7 +279,8 @@ glusterd_op_stage_set_volume (dict_t *dict, char **op_errstr)
         ret = dict_get_int32 (dict, "count", &dict_count);
 
         if (ret) {
-                gf_log ("", GF_LOG_ERROR, "Count(dict),not set in Volume-Set");
+                gf_log (this->name, GF_LOG_ERROR,
+                        "Count(dict),not set in Volume-Set");
                 goto out;
         }
 
@@ -297,14 +298,14 @@ glusterd_op_stage_set_volume (dict_t *dict, char **op_errstr)
                         goto out;
 #else
                         ret  = -1;
-                        gf_log ("", GF_LOG_ERROR, "libxml not present in the"
-                                   "system");
+                        gf_log (this->name, GF_LOG_ERROR,
+                                "libxml not present in the system");
                         *op_errstr = gf_strdup ("Error: xml libraries not "
                                                 "present to produce xml-output");
                         goto out;
 #endif
                 }
-                gf_log ("", GF_LOG_ERROR, "No options received ");
+                gf_log (this->name, GF_LOG_ERROR, "No options received ");
                 *op_errstr = gf_strdup ("Options not specified");
                 ret = -1;
                 goto out;
@@ -312,7 +313,7 @@ glusterd_op_stage_set_volume (dict_t *dict, char **op_errstr)
 
         ret = dict_get_str (dict, "volname", &volname);
         if (ret) {
-                gf_log ("", GF_LOG_ERROR, "Unable to get volume name");
+                gf_log (this->name, GF_LOG_ERROR, "Unable to get volume name");
                 goto out;
         }
 
@@ -320,7 +321,7 @@ glusterd_op_stage_set_volume (dict_t *dict, char **op_errstr)
         if (!exists) {
                 snprintf (errstr, sizeof (errstr), "Volume %s does not exist",
                           volname);
-                gf_log ("", GF_LOG_ERROR, "%s", errstr);
+                gf_log (this->name, GF_LOG_ERROR, "%s", errstr);
                 *op_errstr = gf_strdup (errstr);
                 ret = -1;
                 goto out;
@@ -328,7 +329,8 @@ glusterd_op_stage_set_volume (dict_t *dict, char **op_errstr)
 
         ret = glusterd_volinfo_find (volname, &volinfo);
         if (ret) {
-                gf_log ("", GF_LOG_ERROR, "Unable to allocate memory");
+                gf_log (this->name, GF_LOG_ERROR,
+                        "Unable to allocate memory");
                 goto out;
         }
 
@@ -347,7 +349,8 @@ glusterd_op_stage_set_volume (dict_t *dict, char **op_errstr)
                         goto out;
                 }
                 if (!exists) {
-                        gf_log ("", GF_LOG_ERROR, "Option with name: %s "
+                        gf_log (this->name, GF_LOG_ERROR,
+                                "Option with name: %s "
                                 "does not exist", key);
                         ret = snprintf (errstr, 2048,
                                        "option : %s does not exist",
@@ -364,7 +367,7 @@ glusterd_op_stage_set_volume (dict_t *dict, char **op_errstr)
                 ret = dict_get_str (dict, str, &value);
 
                 if (ret) {
-                        gf_log ("", GF_LOG_ERROR,
+                        gf_log (this->name, GF_LOG_ERROR,
                                 "invalid key,value pair in 'volume set'");
                         ret = -1;
                         goto out;
@@ -380,7 +383,7 @@ glusterd_op_stage_set_volume (dict_t *dict, char **op_errstr)
                 ret = dict_set_str (val_dict, key, value);
 
                 if (ret) {
-                        gf_log ("", GF_LOG_ERROR,
+                        gf_log (this->name, GF_LOG_ERROR,
                                 "Unable to set the options in 'volume set'");
                         ret = -1;
                         goto out;
@@ -399,7 +402,7 @@ glusterd_op_stage_set_volume (dict_t *dict, char **op_errstr)
                 }
 
                 if (ret) {
-                        gf_log ("glusterd", GF_LOG_DEBUG, "Could not create temp "
+                        gf_log (this->name, GF_LOG_DEBUG, "Could not create temp "
                                 "volfile, some option failed: %s", *op_errstr);
                         goto out;
                 }
@@ -424,11 +427,11 @@ out:
         if (ret) {
                 if (!(*op_errstr)) {
                         *op_errstr = gf_strdup ("Error, Validation Failed");
-                        gf_log ("glsuterd", GF_LOG_DEBUG,
+                        gf_log (this->name, GF_LOG_DEBUG,
                                 "Error, Cannot Validate option :%s",
                                 *op_errstr);
                 } else {
-                        gf_log ("glsuterd", GF_LOG_DEBUG,
+                        gf_log (this->name, GF_LOG_DEBUG,
                                 "Error, Cannot Validate option");
                 }
         }