From 86b02afab780e559e82399b9e96381d8df594ed6 Mon Sep 17 00:00:00 2001 From: Dan Lambright Date: Mon, 13 Apr 2015 02:42:12 +0100 Subject: 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 start gluster v detach-tier commit The status and stop cli commands shall be submitted separately. Change-Id: I24fda5cc3ba74f5fb8aa9a3234ad51f18b80a8a0 BUG: 1205540 Signed-off-by: Dan Lambright Signed-off-by: root Signed-off-by: Dan Lambright Reviewed-on: http://review.gluster.org/10108 Reviewed-by: Kaleb KEITHLEY Tested-by: NetBSD Build System --- cli/src/cli-cmd-parser.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) (limited to 'cli/src/cli-cmd-parser.c') diff --git a/cli/src/cli-cmd-parser.c b/cli/src/cli-cmd-parser.c index a8e09a46631..a1648a9c527 100644 --- a/cli/src/cli-cmd-parser.c +++ b/cli/src/cli-cmd-parser.c @@ -1565,6 +1565,66 @@ out: return ret; } +int32_t +cli_cmd_volume_detach_tier_parse (const char **words, int wordcount, + dict_t **options) +{ + int ret = -1; + char *word = NULL; + dict_t *dict = NULL; + int32_t command = GF_OP_CMD_NONE; + int force = 0; + + if (!((wordcount == 4) || (wordcount == 5))) + goto out; + + dict = dict_new (); + if (!dict) + goto out; + + ret = dict_set_str (dict, "volname", (char *)words[2]); + if (ret) + goto out; + + if (wordcount == 5) { + word = (char *)words[4]; + if (!strcmp(word, "force")) + force = 1; + } + + word = (char *)words[3]; + + ret = -1; + + if (!strcmp(word, "start")) { + command = GF_OP_CMD_DETACH_START; + } else if (!strcmp(word, "commit")) { + if (force) + command = GF_OP_CMD_DETACH_COMMIT_FORCE; + else + command = GF_OP_CMD_DETACH_COMMIT; + } else if (!strcmp(word, "stop")) + command = GF_DEFRAG_CMD_STOP_DETACH_TIER; + else if (!strcmp(word, "status")) + command = GF_DEFRAG_CMD_STATUS; + else + goto out; + + ret = dict_set_int32 (dict, "command", command); + if (ret) + goto out; + + *options = dict; + ret = 0; +out: + if (ret) { + gf_log ("cli", GF_LOG_ERROR, "Unable to parse detach-tier CLI"); + if (dict) + dict_unref (dict); + } + + return ret; +} int32_t cli_cmd_volume_remove_brick_parse (const char **words, int wordcount, -- cgit