Hello,
We are using an app that has Elasticsearch database. The version is old and we are seeing a lot of issues lately. The split I/O increases to 50% + and the service becomes unresponsive. Below are the cluster details. Any settings that are obviously incorrect/need changes in order to improve performance.
{
"_nodes" : {
"total" : 1,
"successful" : 1,
"failed" : 0
},
"cluster_name" : "Name",
"timestamp" : 1673623125030,
"status" : "green",
"indices" : {
"count" : 8,
"shards" : {
"total" : 16,
"primaries" : 16,
"replication" : 0.0,
"index" : {
"shards" : {
"min" : 2,
"max" : 2,
"avg" : 2.0
},
"primaries" : {
"min" : 2,
"max" : 2,
"avg" : 2.0
},
"replication" : {
"min" : 0.0,
"max" : 0.0,
"avg" : 0.0
}
}
},
"docs" : {
"count" : 4337795846,
"deleted" : 24298960
},
"store" : {
"size" : "873.7gb",
"size_in_bytes" : 938194540063,
"throttle_time" : "0s",
"throttle_time_in_millis" : 0
},
"fielddata" : {
"memory_size" : "0b",
"memory_size_in_bytes" : 0,
"evictions" : 0
},
"query_cache" : {
"memory_size" : "295.3mb",
"memory_size_in_bytes" : 309741592,
"total_count" : 180086,
"hit_count" : 177991,
"miss_count" : 2095,
"cache_size" : 163,
"cache_count" : 163,
"evictions" : 0
},
"completion" : {
"size" : "0b",
"size_in_bytes" : 0
},
"segments" : {
"count" : 426,
"memory" : "1.7gb",
"memory_in_bytes" : 1862916846,
"terms_memory" : "1gb",
"terms_memory_in_bytes" : 1090071670,
"stored_fields_memory" : "538.8mb",
"stored_fields_memory_in_bytes" : 565008680,
"term_vectors_memory" : "0b",
"term_vectors_memory_in_bytes" : 0,
"norms_memory" : "53kb",
"norms_memory_in_bytes" : 54272,
"points_memory" : "195.1mb",
"points_memory_in_bytes" : 204577440,
"doc_values_memory" : "3mb",
"doc_values_memory_in_bytes" : 3204784,
"index_writer_memory" : "5.2mb",
"index_writer_memory_in_bytes" : 5490992,
"version_map_memory" : "1.5mb",
"version_map_memory_in_bytes" : 1644944,
"fixed_bit_set" : "520mb",
"fixed_bit_set_memory_in_bytes" : 545340016,
"max_unsafe_auto_id_timestamp" : -1,
"file_sizes" : { }
}
},
"nodes" : {
"count" : {
"total" : 1,
"data" : 1,
"coordinating_only" : 0,
"master" : 1,
"ingest" : 1
},
"versions" : [
"5.1.1"
],
"os" : {
"available_processors" : 8,
"allocated_processors" : 8,
"names" : [
{
"name" : "Windows Server 2016",
"count" : 1
}
],
"mem" : {
"total" : "31.9gb",
"total_in_bytes" : 34359132160,
"free" : "14.8gb",
"free_in_bytes" : 15916871680,
"used" : "17.1gb",
"used_in_bytes" : 18442260480,
"free_percent" : 46,
"used_percent" : 54
}
},
"process" : {
"cpu" : {
"percent" : 26
},
"open_file_descriptors" : {
"min" : -1,
"max" : -1,
"avg" : 0
}
},
"jvm" : {
"max_uptime" : "8h",
"max_uptime_in_millis" : 28806467,
"versions" : [
{
"version" : "1.8.0_271",
"vm_name" : "Java HotSpot(TM) 64-Bit Server VM",
"vm_version" : "25.271-b09",
"vm_vendor" : "Oracle Corporation",
"count" : 1
}
],
"mem" : {
"heap_used" : "5.8gb",
"heap_used_in_bytes" : 6327084720,
"heap_max" : "11.9gb",
"heap_max_in_bytes" : 12815171584
},
"threads" : 71
},
"fs" : {
"total" : "1.3tb",
"total_in_bytes" : 1539191074816,
"free" : "223.4gb",
"free_in_bytes" : 239884152832,
"available" : "223.4gb",
"available_in_bytes" : 239884152832
},
"plugins" : [
{
"name" : "readonlyrest",
"version" : "1.16.16-pre2",
"description" : "Safely expose Elasticsearch REST API",
"classname" : "tech.beshu.ror.es.ReadonlyRestPlugin"
}
],
"network_types" : {
"transport_types" : {
"local" : 1
},
"http_types" : {
"ssl_netty4" : 1
}
}
}
}