以下の警告メッセージが連続して表示されます。何をすべきかわからない。ファイル記述子の数を増やすよう求めている関連投稿をいくつか見ました。
同じことをする方法は？
今増やしても、新しいインデックスの追加で同じ問題が発生しますか。(現在、約 400 のインデックス、6 つのシャード、1 つのレプリカを使用しています)。インデックスの数はさらに増える傾向にあります。
[03:58:24,165][WARN ][cluster.action.shard ] [node1] received shard failed for [index9][2], node[node_hash3], [P], s[INITIALIZING], reason [Failed to start shard, message [IndexShardGatewayRecoveryException[[index9][2] failed recovery]; nested: EngineCreationFailureException[[index9][2] failed to open reader on writer]; nested: FileNotFoundException[/data/elasticsearch/whatever/nodes/0/indices/index9/2/index/segments_1 (Too many open files)]; ]]
[03:58:24,166][WARN ][cluster.action.shard ] [node1] received shard failed for [index15][0], node[node_hash2], [P], s[INITIALIZING], reason [Failed to create shard, message [IndexShardCreationException[[index15][0] failed to create shard]; nested: IOException[directory '/data/elasticsearch/whatever/nodes/0/indices/index15/0/index' exists and is a directory, but cannot be listed: list() returned null]; ]]
[03:58:24,195][WARN ][cluster.action.shard ] [node1] received shard failed for [index16][3], node[node_hash3], [P], s[INITIALIZING], reason [Failed to start shard, message [IndexShardGatewayRecoveryException[[index16][3] failed recovery]; nested: EngineCreationFailureException[[index16][3] failed to open reader on writer]; nested: FileNotFoundException[/data/elasticsearch/whatever/nodes/0/indices/index16/3/index/segments_1 (Too many open files)]; ]]
[03:58:24,196][WARN ][cluster.action.shard ] [node1] received shard failed for [index17][0], node[node_hash3], [P], s[INITIALIZING], reason [Failed to start shard, message [IndexShardGatewayRecoveryException[[index17][0] failed recovery]; nested: EngineCreationFailureException[[index17][0] failed to open reader on writer]; nested: FileNotFoundException[/data/elasticsearch/whatever/nodes/0/indices/index17/0/index/segments_1 (Too many open files)]; ]]
[03:58:24,198][WARN ][cluster.action.shard ] [node1] received shard failed for [index21][4], node[node_hash3], [P], s[INITIALIZING], reason [Failed to start shard, message [IndexShardGatewayRecoveryException[[index21][4] failed recovery]; nested: EngineCreationFailureException[[index21][4] failed to create engine]; nested: LockReleaseFailedException[Cannot forcefully unlock a NativeFSLock which is held by another indexer component: /data/elasticsearch/whatever/nodes/0/indices/index21/4/index/write.lock]; ]]
ノード API の出力
curl -XGET 'http://localhost:9200/_nodes?os=true&process=true&pretty=true'
{
"ok" : true,
"cluster_name" : "whatever",
"nodes" : {
"node_hash1" : {
"name" : "node1",
"transport_address" : "transportip1",
"hostname" : "myhostip1",
"version" : "0.20.4",
"http_address" : "httpip1",
"attributes" : {
"data" : "false",
"master" : "true"
},
"os" : {
"refresh_interval" : 1000,
"available_processors" : 8,
"cpu" : {
"vendor" : "Intel",
"model" : "Xeon",
"mhz" : 2133,
"total_cores" : 8,
"total_sockets" : 8,
"cores_per_socket" : 16,
"cache_size" : "4kb",
"cache_size_in_bytes" : 4096
},
"mem" : {
"total" : "7gb",
"total_in_bytes" : 7516336128
},
"swap" : {
"total" : "30gb",
"total_in_bytes" : 32218378240
}
},
"process" : {
"refresh_interval" : 1000,
"id" : 26188,
"max_file_descriptors" : 16384
}
},
"node_hash2" : {
"name" : "node2",
"transport_address" : "transportip2",
"hostname" : "myhostip2",
"version" : "0.20.4",
"attributes" : {
"master" : "false"
},
"os" : {
"refresh_interval" : 1000,
"available_processors" : 4,
"cpu" : {
"vendor" : "Intel",
"model" : "Xeon",
"mhz" : 2400,
"total_cores" : 4,
"total_sockets" : 4,
"cores_per_socket" : 32,
"cache_size" : "20kb",
"cache_size_in_bytes" : 20480
},
"mem" : {
"total" : "34.1gb",
"total_in_bytes" : 36700303360
},
"swap" : {
"total" : "0b",
"total_in_bytes" : 0
}
},
"process" : {
"refresh_interval" : 1000,
"id" : 24883,
"max_file_descriptors" : 16384
}
},
"node_hash3" : {
"name" : "node3",
"transport_address" : "transportip3",
"hostname" : "myhostip3",
"version" : "0.20.4",
"attributes" : {
"master" : "false"
},
"os" : {
"refresh_interval" : 1000,
"available_processors" : 4,
"cpu" : {
"vendor" : "Intel",
"model" : "Xeon",
"mhz" : 2666,
"total_cores" : 4,
"total_sockets" : 4,
"cores_per_socket" : 16,
"cache_size" : "8kb",
"cache_size_in_bytes" : 8192
},
"mem" : {
"total" : "34.1gb",
"total_in_bytes" : 36700303360
},
"swap" : {
"total" : "0b",
"total_in_bytes" : 0
}
},
"process" : {
"refresh_interval" : 1000,
"id" : 25328,
"max_file_descriptors" : 16384
}
}
}