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authorDan Lambright <dlambrig@redhat.com>2015-04-13 02:42:12 +0100
committerKaleb KEITHLEY <kkeithle@redhat.com>2015-04-22 07:51:03 -0700
commit86b02afab780e559e82399b9e96381d8df594ed6 (patch)
treee59242b087191dfb6af7b302b18a59206a9cd17c /xlators/mgmt/glusterd/src/glusterd-rebalance.c
parentabbc525dd3cbe142753c5b44a2717c1ed6b26723 (diff)
glusterd: support for tier volumes 'detach start' and 'detach commit'
These commands work in a manner analagous to rebalancing when removing a brick. The existing migration daemon detects "detach start" and switches to moving data off the hot tier. While in this state all lookups are directed to the cold tier. gluster v detach-tier <vol> start gluster v detach-tier <vol> commit The status and stop cli commands shall be submitted separately. Change-Id: I24fda5cc3ba74f5fb8aa9a3234ad51f18b80a8a0 BUG: 1205540 Signed-off-by: Dan Lambright <dlambrig@redhat.com> Signed-off-by: root <root@localhost.localdomain> Signed-off-by: Dan Lambright <dlambrig@redhat.com> Reviewed-on: http://review.gluster.org/10108 Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Tested-by: NetBSD Build System
Diffstat (limited to 'xlators/mgmt/glusterd/src/glusterd-rebalance.c')
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-rebalance.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-rebalance.c b/xlators/mgmt/glusterd/src/glusterd-rebalance.c
index f5bb319cb7d..840438df29a 100644
--- a/xlators/mgmt/glusterd/src/glusterd-rebalance.c
+++ b/xlators/mgmt/glusterd/src/glusterd-rebalance.c
@@ -215,6 +215,10 @@ glusterd_handle_defrag_start (glusterd_volinfo_t *volinfo, char *op_errstr,
GF_ASSERT (volinfo);
GF_ASSERT (op_errstr);
+ if ((cmd == GF_OP_CMD_DETACH_START) &&
+ (volinfo->rebal.defrag_status == GF_DEFRAG_STATUS_STARTED))
+ return 0;
+
ret = glusterd_defrag_start_validate (volinfo, op_errstr, len, op);
if (ret)
goto out;
@@ -495,6 +499,7 @@ __glusterd_handle_defrag_volume (rpcsvc_request_t *req)
if ((cmd == GF_DEFRAG_CMD_STATUS) ||
(cmd == GF_DEFRAG_CMD_STATUS_TIER) ||
+ (cmd == GF_DEFRAG_CMD_STOP_DETACH_TIER) ||
(cmd == GF_DEFRAG_CMD_STOP)) {
ret = glusterd_op_begin (req, GD_OP_DEFRAG_BRICK_VOLUME,
dict, msg, sizeof (msg));
@@ -844,6 +849,7 @@ glusterd_op_rebalance (dict_t *dict, char **op_errstr, dict_t *rsp_dict)
ret = 0;
break;
+ case GF_DEFRAG_CMD_START_DETACH_TIER:
case GF_DEFRAG_CMD_STATUS:
case GF_DEFRAG_CMD_STATUS_TIER:
break;