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CentOS7上elasticsearch5.0启动失败
问题描述:
最新版本5.0release了,想着装上试试,结果一上来就报了两个错,然后就退出了,如下:
$ ./elasticsearch...ERROR: bootstrap checks failedmax file descriptors [4096] for elasticsearch process likely too low, increase to at least [65536]max virtual memory areas vm.max_map_count [65530] likely too low, increase to at least [262144][2016-10-31T04:55:45,240][INFO ][o.e.n.Node ] [vJDcSkt] stopping ...[2016-10-31T04:55:45,249][INFO ][o.e.n.Node ] [vJDcSkt] stopped[2016-10-31T04:55:45,249][INFO ][o.e.n.Node ] [vJDcSkt] closing ...[2016-10-31T04:55:45,257][INFO ][o.e.n.Node ] [vJDcSkt] closed
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解决办法:
问题1:
max file descriptors [4096] for elasticsearch process likely too low, increase to at least [65536]
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修改/etc/security/limits.conf文件,添加或修改如下行:
* hard nofile 65536* soft nofile 65536
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问题2:
max virtual memory areas vm.max_map_count [65530] likely too low, increase to at least [262144]
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使用下面的方法临时使其生效
$ sudo sysctl -w vm.max_map_count=262144
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或者修改 /etc/sysctl.conf 文件,添加 “vm.max_map_count”设置
设置后,可以使用
$ sysctl -a
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