elasticsearch 问题解决汇总（随时更新）

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由于磁盘空间不足触发了磁盘保护,状态不会在磁盘空间正常后消除，需要手动解决

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##### 清除单表
PUT /tablename/_settings
{
  "index.blocks.read_only_allow_delete": "false"
}

##### 清除所有
PUT _settings
{
  "index.blocks.read_only_allow_delete": "false"
}
[type=circuit_breaking_exception, reason=[parent] Data too large

原因是filedata占用大量对内存导致.解决方案: 一方面增加jvm对内存,另一方面减少filedata对堆内存的占用.

  • 调整jvm对内存大小(/usr/share/elasticsearch/config)

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    # Xms represents the initial size of total heap space
    # Xmx represents the maximum size of total heap space

    -Xms2g
    -Xmx2g

  • 调整field data 缓存

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    curl -X PUT "localhost:9200/_cluster/settings" -H 'Content-Type: application/json' -d'
    {
      "persistent": {
        "indices.breaker.fielddata/limit": "30%"
      }
    }