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authorshishirng <shishirng@gluster.com>2012-01-18 15:29:15 +0530
committerVijay Bellur <vijay@gluster.com>2012-02-19 01:31:19 -0800
commit7ba1e1ed45cee56ef51b9c04df99c976546d5d04 (patch)
treed3e4121729d51852a120ba5f067aa8a64f39b624 /xlators/mgmt/glusterd/src/glusterd-utils.c
parent061d70e8195d082043b071118333b7e3173fa3ec (diff)
cluster/dht: Rebalance will be a new glusterfs process
rebalance will not use any maintainance clients. It is replaced by syncops, with the volfile. Brickop (communication between glusterd<->glusterfs process) is used for status and stop commands. Dept-first traversal of dir is maintained, but data is migrated as and when encounterd. fix-layout (dir) do Complete migrate-data of dir fix-layout (subdir) done Rebalance state is saved in the vol file, for restart-ability. A disconnect event and pidfile state determine the defrag-status Signed-off-by: shishirng <shishirng@gluster.com> Change-Id: Iec6c80c84bbb2142d840242c28db3d5f5be94d01 BUG: 763844 Reviewed-on: http://review.gluster.com/2540 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com>
Diffstat (limited to 'xlators/mgmt/glusterd/src/glusterd-utils.c')
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-utils.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-utils.c b/xlators/mgmt/glusterd/src/glusterd-utils.c
index 42924a5f68a..9ec9e16f18d 100644
--- a/xlators/mgmt/glusterd/src/glusterd-utils.c
+++ b/xlators/mgmt/glusterd/src/glusterd-utils.c
@@ -2016,6 +2016,15 @@ glusterd_import_volinfo (dict_t *vols, int count,
goto out;
}
+ memset (key, 0, sizeof (key));
+ snprintf (key, sizeof (key), "volume%d.rebalance", count);
+ ret = dict_get_uint32 (vols, key, &new_volinfo->defrag_cmd);
+ if (ret) {
+ snprintf (msg, sizeof (msg), "%s missing in payload for %s",
+ key, volname);
+ goto out;
+ }
+
uuid_parse (volume_id_str, new_volinfo->volume_id);
memset (key, 0, sizeof (key));
@@ -2438,6 +2447,7 @@ glusterd_pending_node_get_rpc (glusterd_pending_node_t *pending_node)
struct rpc_clnt *rpc = NULL;
glusterd_brickinfo_t *brickinfo = NULL;
nodesrv_t *shd = NULL;
+ glusterd_volinfo_t *volinfo = NULL;
GF_VALIDATE_OR_GOTO (THIS->name, pending_node, out);
GF_VALIDATE_OR_GOTO (THIS->name, pending_node->node, out);
@@ -2449,6 +2459,11 @@ glusterd_pending_node_get_rpc (glusterd_pending_node_t *pending_node)
shd = pending_node->node;
rpc = shd->rpc;
+ } else if (pending_node->type == GD_NODE_REBALANCE) {
+ volinfo = pending_node->node;
+ if (volinfo->defrag)
+ rpc = volinfo->defrag->rpc;
+
} else {
GF_ASSERT (0);
}
@@ -4811,3 +4826,42 @@ glusterd_get_client_filepath (char *filepath, glusterd_volinfo_t *volinfo,
snprintf (filepath, PATH_MAX, "%s/%s-fuse.vol",
path, volinfo->volname);
}
+
+int
+glusterd_volume_defrag_restart (glusterd_volinfo_t *volinfo, char *op_errstr,
+ size_t len, int cmd, defrag_cbk_fn_t cbk)
+{
+ glusterd_conf_t *priv = NULL;
+ char pidfile[PATH_MAX];
+ int ret = -1;
+ pid_t pid;
+
+ priv = THIS->private;
+ if (!priv)
+ return ret;
+
+ GLUSTERD_GET_DEFRAG_PID_FILE(pidfile, volinfo, priv);
+
+ if (!glusterd_is_service_running (pidfile, &pid)) {
+ glusterd_handle_defrag_start (volinfo, op_errstr, len, cmd,
+ cbk);
+ }
+
+ return ret;
+}
+
+int
+glusterd_restart_rebalance (glusterd_conf_t *conf)
+{
+ glusterd_volinfo_t *volinfo = NULL;
+ int ret = 0;
+ char op_errstr[256];
+
+ list_for_each_entry (volinfo, &conf->volumes, vol_list) {
+ if (!volinfo->defrag_cmd)
+ continue;
+ glusterd_volume_defrag_restart (volinfo, op_errstr, 256,
+ volinfo->defrag_cmd, NULL);
+ }
+ return ret;
+}