From 25daa42911d2ff697880ee29c591cac5f2abebed Mon Sep 17 00:00:00 2001 From: Amar Tumballi Date: Fri, 9 Sep 2011 09:42:51 +0530 Subject: support for de-commissioning a node using 'remove-brick' to achieve this, we now create volume-file with 'decommissioned-nodes' option in distribute volume, then just perform the rebalance set of operations (with 'force' flag set). now onwards, the 'remove-brick' (with 'start' option) operation tries to migrate data from removed bricks to existing bricks. 'remove-brick' also supports similar options as of replace-brick. * (no options) -> works as 'force', will have the current behavior of remove-brick, ie., no data-migration, volume changes. * start (starts remove-brick with data-migration/draining process, which takes care of migrating data and once complete, will commit the changes to volume file) * pause (stop data migration, but keep the volume file intact with extra options whatever is set) * abort (stop data-migration, and fall back to old configuration) * commit (if volume is stopped, commits the changes to volumefile) * force (stops the data-migration and commits the changes to volume file) Change-Id: I3952bcfbe604a0952e68b6accace7014d5e401d3 BUG: 1952 Reviewed-on: http://review.gluster.com/118 Tested-by: Gluster Build System Reviewed-by: Vijay Bellur --- xlators/cluster/dht/src/dht-helper.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'xlators/cluster/dht/src/dht-helper.c') diff --git a/xlators/cluster/dht/src/dht-helper.c b/xlators/cluster/dht/src/dht-helper.c index 99abe023b..d8138067e 100644 --- a/xlators/cluster/dht/src/dht-helper.c +++ b/xlators/cluster/dht/src/dht-helper.c @@ -579,6 +579,12 @@ dht_init_subvolumes (xlator_t *this, dht_conf_t *conf) return -1; } + conf->decommissioned_bricks = GF_CALLOC (cnt, sizeof (xlator_t *), + gf_dht_mt_xlator_t); + if (!conf->decommissioned_bricks) { + return -1; + } + return 0; } -- cgit