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[[cluster-update-settings]]
== Cluster Update Settings
Allows to update cluster wide specific settings. Settings updated can
either be persistent (applied cross restarts) or transient (will not
survive a full cluster restart). Here is an example:
[source,js]
--------------------------------------------------
curl -XPUT localhost:9200/_cluster/settings -d '{
"persistent" : {
"discovery.zen.minimum_master_nodes" : 2
}
}'
--------------------------------------------------
Or:
[source,js]
--------------------------------------------------
curl -XPUT localhost:9200/_cluster/settings -d '{
"transient" : {
"discovery.zen.minimum_master_nodes" : 2
}
}'
--------------------------------------------------
The cluster responds with the settings updated. So the response for the
last example will be:
[source,js]
--------------------------------------------------
{
"persistent" : {},
"transient" : {
"discovery.zen.minimum_master_nodes" : "2"
}
}'
--------------------------------------------------
Cluster wide settings can be returned using:
[source,js]
--------------------------------------------------
curl -XGET localhost:9200/_cluster/settings
--------------------------------------------------
There is a specific list of settings that can be updated, those include:
[float]
[[cluster-settings]]
=== Cluster settings
[float]
==== Routing allocation
[float]
===== Awareness
`cluster.routing.allocation.awareness.attributes`::
See <<modules-cluster>>.
`cluster.routing.allocation.awareness.force.*`::
See <<modules-cluster>>.
[float]
===== Balanced Shards
`cluster.routing.allocation.balance.shard`::
Defines the weight factor for shards allocated on a node
(float). Defaults to `0.45f`.
`cluster.routing.allocation.balance.index`::
Defines a factor to the number of shards per index allocated
on a specific node (float). Defaults to `0.5f`.
`cluster.routing.allocation.balance.primary`::
defines a weight factor for the number of primaries of a specific index
allocated on a node (float). `0.05f`.
`cluster.routing.allocation.balance.threshold`::
minimal optimization value of operations that should be performed (non
negative float). Defaults to `1.0f`.
[float]
===== Concurrent Rebalance
`cluster.routing.allocation.cluster_concurrent_rebalance`::
Allow to control how many concurrent rebalancing of shards are
allowed cluster wide, and default it to `2` (integer). `-1` for
unlimited. See also <<modules-cluster>>.
[float]
===== Disable allocation
added[1.0.0.RC1]
All the disable allocation settings have been deprecated in favour for
`cluster.routing.allocation.enable` setting.
`cluster.routing.allocation.disable_allocation`::
See <<modules-cluster>>.
`cluster.routing.allocation.disable_replica_allocation`::
See <<modules-cluster>>.
`cluster.routing.allocation.disable_new_allocation`::
See <<modules-cluster>>.
[float]
===== Enable allocation
`cluster.routing.allocation.enable`::
See <<modules-cluster>>.
[float]
===== Throttling allocation
`cluster.routing.allocation.node_initial_primaries_recoveries`::
See <<modules-cluster>>.
`cluster.routing.allocation.node_concurrent_recoveries`::
See <<modules-cluster>>.
[float]
===== Filter allocation
`cluster.routing.allocation.include.*`::
See <<modules-cluster>>.
`cluster.routing.allocation.exclude.*`::
See <<modules-cluster>>.
`cluster.routing.allocation.require.*`
See <<modules-cluster>>.
[float]
==== Metadata
`cluster.blocks.read_only`::
Have the whole cluster read only (indices do not accept write operations), metadata is not allowed to be modified (create or delete indices).
[float]
==== Discovery
`discovery.zen.minimum_master_nodes`::
See <<modules-discovery-zen>>
[float]
==== Threadpools
`threadpool.*`::
See <<modules-threadpool>>
[float]
[[cluster-index-settings]]
=== Index settings
[float]
==== Index filter cache
`indices.cache.filter.size`::
See <<index-modules-cache>>
`indices.cache.filter.expire` (time)::
See <<index-modules-cache>>
[float]
==== TTL interval
`indices.ttl.interval` (time)::
See <<mapping-ttl-field>>
[float]
==== Recovery
`indices.recovery.concurrent_streams`::
See <<modules-indices>>
`indices.recovery.file_chunk_size`::
See <<modules-indices>>
`indices.recovery.translog_ops`::
See <<modules-indices>>
`indices.recovery.translog_size`::
See <<modules-indices>>
`indices.recovery.compress`::
See <<modules-indices>>
`indices.recovery.max_bytes_per_sec`::
See <<modules-indices>>
[float]
==== Store level throttling
`indices.store.throttle.type`::
See <<index-modules-store>>
`indices.store.throttle.max_bytes_per_sec`::
See <<index-modules-store>>
[float]
[[logger]]
=== Logger
Logger values can also be updated by setting `logger.` prefix. More
settings will be allowed to be updated.
|
