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tier/glusterd: Add description for volume set options

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Change-Id: Idc2eed77f8d841b6628183867e84601ce605d610
BUG: 1215571
Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
Signed-off-by: Joseph Fernandes <josferna@redhat.com>
Reviewed-on: http://review.gluster.org/10757
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
This commit is contained in:
Mohammed Rafi KC 2015-05-12 14:50:33 +05:30 committed by Dan Lambright
parent e19552c8cc
commit 2fea88d70b
1 changed files with 31 additions and 7 deletions
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38
xlators/mgmt/glusterd/src/glusterd-volume-set.c
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@ -1830,46 +1830,70 @@ struct volopt_map_entry glusterd_volopt_map[] = {
.option = "write-freq-threshold",
.op_version = GD_OP_VERSION_3_7_0,
.flags = OPT_FLAG_CLIENT_OPT,
.validate_fn = validate_tier
.validate_fn = validate_tier,
.description = "Defines the number of writes, in a promotion/demotion"
" cycle, that would mark a file HOT for promotion. Any"
" file that has write hits less than this value will "
"be considered as COLD and will be demoted."
},
{ .key = "cluster.read-freq-threshold",
.voltype = "cluster/tier",
.option = "read-freq-threshold",
.op_version = GD_OP_VERSION_3_7_0,
.flags = OPT_FLAG_CLIENT_OPT,
.validate_fn = validate_tier
.validate_fn = validate_tier,
.description = "Defines the number of reads, in a promotion/demotion "
"cycle, that would mark a file HOT for promotion. Any "
"file that has read hits less than this value will be "
"considered as COLD and will be demoted."
},
{ .key = "cluster.tier-promote-frequency",
.voltype = "cluster/tier",
.option = "tier-promote-frequency",
.op_version = GD_OP_VERSION_3_7_0,
.flags = OPT_FLAG_CLIENT_OPT,
.validate_fn = validate_tier
.validate_fn = validate_tier,
.description = "Defines how often the promotion should be triggered "
"i.e. periodicity of promotion cycles. The value is in "
"secs."
},
{ .key = "cluster.tier-demote-frequency",
.voltype = "cluster/tier",
.option = "tier-demote-frequency",
.op_version = GD_OP_VERSION_3_7_0,
.flags = OPT_FLAG_CLIENT_OPT,
.validate_fn = validate_tier
.validate_fn = validate_tier,
.description = "Defines how often the demotion should be triggered "
"i.e. periodicity of demotion cycles. The value is in "
"secs."
},
{ .key = "features.ctr-enabled",
.voltype = "features/changetimerecorder",
.value = "off",
.option = "ctr-enabled",
.op_version = GD_OP_VERSION_3_7_0
.op_version = GD_OP_VERSION_3_7_0,
.description = "Enable CTR xlator"
},
{ .key = "features.record-counters",
.voltype = "features/changetimerecorder",
.value = "off",
.option = "record-counters",
.op_version = GD_OP_VERSION_3_7_0
.op_version = GD_OP_VERSION_3_7_0,
.description = "Its a Change Time Recorder Xlator option to enable recording write "
"and read heat counters. The default is disabled. "
"If enabled, \"cluster.write-freq-threshold\" and "
"\"cluster.read-freq-threshold\" defined the number "
"of writes (or reads) to a given file are needed "
"before triggering migration."
},
{ .key = "features.ctr_link_consistency",
.voltype = "features/changetimerecorder",
.value = "off",
.option = "ctr_link_consistency",
.op_version = GD_OP_VERSION_3_7_0
.op_version = GD_OP_VERSION_3_7_0,
.description = "Enable a crash consistent way of recording hardlink "
"updates by Change Time Recorder Xlator. When recording in a crash "
"consistent way the data operations will experience more latency."
},
#endif /* USE_GFDB */
{ .key = "locks.trace",