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                # 重要的系統配置 原文鏈接 : [https://www.elastic.co/guide/en/elasticsearch/reference/current/system-config.html](https://www.elastic.co/guide/en/elasticsearch/reference/current/system-config.html) 譯文鏈接 : [http://www.apache.wiki/pages/viewpage.action?pageId=4882621](http://www.apache.wiki/pages/viewpage.action?pageId=4882621) 貢獻者 : [阿叩](/display/~luanqing) ## 重要的系統配置 理想情況下,Elasticsearch應該單獨在一個服務器上運行,并使用所有可用的資源。為了做到這一點,您需要配置您的操作系統允許用戶運行Elasticsearch比默認允許訪問更多的資源。 以下設置必須在生產使用時配置: * [設置JVM堆大小](https://github.com/aqlu/elasticsearch-reference-cn/blob/master/Setup_Elasticsearch/Important_System_Configuration/Set_JVM_heap_size_via_jvm.options.md) * [禁用交換](https://github.com/aqlu/elasticsearch-reference-cn/blob/master/Setup_Elasticsearch/Important_System_Configuration/Disable_swapping.md) * [增加文件描述符](https://github.com/aqlu/elasticsearch-reference-cn/blob/master/Setup_Elasticsearch/Important_System_Configuration/File_Descriptors.md) * [確保足夠的虛擬內存](https://github.com/aqlu/elasticsearch-reference-cn/blob/master/Setup_Elasticsearch/Important_System_Configuration/Virtual_memory.md) * [確保足夠的線程](https://github.com/aqlu/elasticsearch-reference-cn/blob/master/Setup_Elasticsearch/Important_System_Configuration/Number_of_threads.md) ## [開發模式vs生產模式](https://github.com/aqlu/elasticsearch-reference-cn/blob/master/Setup_Elasticsearch/Important_System_Configuration.md#開發模式vs生產模式) 默認情況下,Elasticsearch假設你在開發環境中工作。任何沒有設置正確的配置,都會以警告的方式記錄在日志文件中,但是你能啟動與運行Elasticsearch節點。 一旦你后面配置了網絡設置如`network.host`,Elasticsearch將會切換到生產模式并將警告升級為異常。這些異常將會阻止Elasticsearch節點的啟動。這是一個非常重要的安全措施,以確保你不會因為錯誤的配置丟失數據。
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