I have a cluster of 5 servers for elasticsearch, all with the same version of elasticsearch.
I need to move all data from servers 2, 3, 4, 5 to server 1.
How can I do it?
How can I know which server has data at all?
After change of _cluster/settings with:
PUT _cluster/settings { "persistent" : { "cluster.routing.allocation.require._host" : "server1" } } I get for: curl -GET http://localhost:9200/_cat/allocation?v
the following:
shards disk.indices disk.used disk.avail disk.total disk.percent host ip node 6 54.5gb 170.1gb 1.9tb 2.1tb 7 *.*.*.* *.*.*.* node-5 6 50.4gb 167.4gb 1.9tb 2.1tb 7 *.*.*.* *.*.*.* node-3 6 22.6gb 139.8gb 2tb 2.1tb 6 *.*.*.* *.*.*.* node-2 6 49.8gb 166.6gb 1.9tb 2.1tb 7 *.*.*.* *.*.*.* node-4 6 54.8gb 172.1gb 1.9tb 2.1tb 7 *.*.*.* *.*.*.* node-1 and for: GET _cluster/settings?include_defaults
the following:
#! Deprecation: [node.max_local_storage_nodes] setting was deprecated in Elasticsearch and will be removed in a future release! { "persistent" : { "cluster" : { "routing" : { "allocation" : { "require" : { "_host" : "server1" } } } } }, "transient" : { }, "defaults" : { "cluster" : { "max_voting_config_exclusions" : "10", "auto_shrink_voting_configuration" : "true", "election" : { "duration" : "500ms", "initial_timeout" : "100ms", "max_timeout" : "10s", "back_off_time" : "100ms", "strategy" : "supports_voting_only" }, "no_master_block" : "write", "persistent_tasks" : { "allocation" : { "enable" : "all", "recheck_interval" : "30s" } }, "blocks" : { "read_only_allow_delete" : "false", "read_only" : "false" }, "remote" : { "node" : { "attr" : "" }, "initial_connect_timeout" : "30s", "connect" : "true", "connections_per_cluster" : "3" }, "follower_lag" : { "timeout" : "90000ms" }, "routing" : { "use_adaptive_replica_selection" : "true", "rebalance" : { "enable" : "all" }, "allocation" : { "node_concurrent_incoming_recoveries" : "2", "node_initial_primaries_recoveries" : "4", "same_shard" : { "host" : "false" }, "total_shards_per_node" : "-1", "shard_state" : { "reroute" : { "priority" : "NORMAL" } }, "type" : "balanced", "disk" : { "threshold_enabled" : "true", "watermark" : { "low" : "85%", "flood_stage" : "95%", "high" : "90%" }, "include_relocations" : "true", "reroute_interval" : "60s" }, "awareness" : { "attributes" : [ ] }, "balance" : { "index" : "0.55", "threshold" : "1.0", "shard" : "0.45" }, "enable" : "all", "node_concurrent_outgoing_recoveries" : "2", "allow_rebalance" : "indices_all_active", "cluster_concurrent_rebalance" : "2", "node_concurrent_recoveries" : "2" } }, ... "nodes" : { "reconnect_interval" : "10s" }, "service" : { "slow_master_task_logging_threshold" : "10s", "slow_task_logging_threshold" : "30s" }, ... "name" : "cluster01", ... "max_shards_per_node" : "1000", "initial_master_nodes" : [ ], "info" : { "update" : { "interval" : "30s", "timeout" : "15s" } } }, ... 
