删除未分配的分片时未找到索引异常

Question

我有一个ES集群，其中的pod会时不时地出现故障。

我检查了集群的运行状况，发现集群中有太多未分配的分片

{
"cluster_name" : "elasticsearch",
"status" : "red",
"timed_out" : false,
"number_of_nodes" : 5,
"number_of_data_nodes" : 2,
"active_primary_shards" : 274,
"active_shards" : 274,
"relocating_shards" : 0,
"initializing_shards" : 8,
"unassigned_shards" : 8568,
"delayed_unassigned_shards" : 0,
"number_of_pending_tasks" : 16,
"number_of_in_flight_fetch" : 0,
"task_max_waiting_in_queue_millis" : 56344,
"active_shards_percent_as_number" : 3.096045197740113

}

我尝试使用以下命令删除未分配的碎片

curl -X GET 'elasticsearch-qna:9200/_cat/shards?pretty' | grep UNASSIGNED | awk {'print $1'} | xargs -i curl -XDELETE 'elasticsearch-qna:9200/{}'

但是，尝试删除表单时未找到索引异常。

{
"acknowledged" : true
}
{
"error" : {
  "root_cause" : [
    {
      "type" : "index_not_found_exception",
      "reason" : "no such index",
      "index_uuid" : "_na_",
      "resource.type" : "index_or_alias",
      "resource.id" : "ResourceID",
    "index" : "en-data-service"
  }
],
"type" : "index_not_found_exception",
"reason" : "no such index",
"index_uuid" : "_na_",
"resource.type" : "index_or_alias",
"resource.id" : "NA",
"index" : "en-data-service"
},
"status" : 404
}

已从JSON中删除资源ID和索引。

任何帮助都将不胜感激。

Answer 1

我认为问题出在使用xargs上。请使用此解决方案，并让我知道它是否有效。

curl -X GET 'elasticsearch-qna:9200/_cat/indices?pretty' | grep -i red | awk 'print $3'> indices-for-delete

for i in `cat indices-for-delete` ; do echo $i ; curl -XDELETE 'elasticsearch-qna:9200/$i' ; done

请注意，我将_cat/shards更改为_cat/indices，并尝试查找红色索引，而不是未分配的shard。因为可能由于未分配的副本而存在未分配的分片。