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link之家  ›  centos7下部署elasticsearch常见错误_Mars
elasticsearch
https://blog.csdn.net/qq_22211217/article/details/80740873
18330380933
3 年前

一、Exception in thread "main" SettingsException[Failed to load settings from [elasticsearch.yml]]; nested: ElasticsearchParseException[malformed, expected settings to start with 'object', instead was [VALUE_STRING]];

原因：elasticsearch.yml文件错误

解决：参数与参数值等号间需要空格 

node.name ="node"  ##错误
node.name = "node" ##正确


二、org.elasticsearch.bootstrap.StartupException: java.lang.RuntimeException: can not run elasticsearch as root

详细错误： 

OpenJDK 64-Bit Server VM warning: If the number of processors is expected to increase from one, then you should configure the number of parallel GC threads a
[2018-06-20T02:19:58,978][WARN ][o.e.b.ElasticsearchUncaughtExceptionHandler] [] uncaught exception in thread [main]
org.elasticsearch.bootstrap.StartupException: java.lang.RuntimeException: can not run elasticsearch as root
	at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:140) ~[elasticsearch-6.3.0.jar:6.3.0]
	at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:127) ~[elasticsearch-6.3.0.jar:6.3.0]
	at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) ~[elasticsearch-6.3.0.jar:6.3.0]
	at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124) ~[elasticsearch-cli-6.3.0.jar:6.3.0]
	at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-cli-6.3.0.jar:6.3.0]
	at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:93) ~[elasticsearch-6.3.0.jar:6.3.0]
	at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:86) ~[elasticsearch-6.3.0.jar:6.3.0]
Caused by: java.lang.RuntimeException: can not run elasticsearch as root
	at org.elasticsearch.bootstrap.Bootstrap.initializeNatives(Bootstrap.java:104) ~[elasticsearch-6.3.0.jar:6.3.0]
	at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:171) ~[elasticsearch-6.3.0.jar:6.3.0]
	at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:326) ~[elasticsearch-6.3.0.jar:6.3.0]
	at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:136) ~[elasticsearch-6.3.0.jar:6.3.0]
	... 6 more

原因：处于对root用户的安全保护，需要使用其他用户组进行授权启动


step1:用户组进行授权启动


groupadd elsearch           
useradd elsearch -g elsearch -p elasticsearch
chown -R elsearch:elsearch  elasticsearch-6.3.0

备注： 添加用户组 elsearch  
      添加用户 elsearch 密码为 elasticsearch 到用户组 elsearch
      将elsearch安装目录授权给 用户组：用户  即 elsearch：elsearch


step2: 重新启动


su elsearch
/elasticsearch-6.3.0/bin/elasticsearch


备注：切换 elsearch 用户

三、OpenJDK 64-Bit Server VM warning: INFO: os::commit_memory(0x0000000085330000, 2060255232, 0) failed; error='Cannot a ...'(errno=12);


原因：jvm要分配最大内存超出系统内存


step1：适当调整指定jvm内存


vi /home/elasticsearch-6.3.0/config/jvm.options 


备注：编辑elasticsearch jvm配置文件 修改如下 esc+：wq保存退出


## JVM configuration
################################################################
## IMPORTANT: JVM heap size
################################################################
## You should always set the min and max JVM heap
## size to the same value. For example, to set
## the heap to 4 GB, set:
## -Xms4g
## -Xmx4g
## See https://www.elastic.co/guide/en/elasticsearch/reference/current/heap-size.html
## for more information
################################################################
# Xms represents the initial size of total heap space
# Xmx represents the maximum size of total heap space
-Xms512m
-Xmx512m


备注：由于虚拟机内存制定1g，所以适当降低jvm内存指定


step2:重启


su elsearch
/elasticsearch-6.3.0/bin/elasticsearch


四、ERROR: [3] bootstrap checks failed


详细错误：


[2018-06-20T02:35:47,152][INFO ][o.e.b.BootstrapChecks    ] [SUcoFrg] bound or publishing to a non-loopback address, enforcing bootstrap checks
ERROR: [3] bootstrap checks failed
[1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]
[2]: max number of threads [3802] for user [elsearch] is too low, increase to at least [4096]
[3]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
[2018-06-20T02:35:47,170][INFO ][o.e.n.Node               ] [SUcoFrg] stopping ...
[2018-06-20T02:35:47,316][INFO ][o.e.n.Node               ] [SUcoFrg] stopped
[2018-06-20T02:35:47,316][INFO ][o.e.n.Node               ] [SUcoFrg] closing ...
[2018-06-20T02:35:47,336][INFO ][o.e.n.Node               ] [SUcoFrg] closed

原因：虚拟机限制用户的执行内存


[1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]


[2]: max number of threads [3802] for user [elsearch] is too low, increase to at least [4096]


step1:修改安全限制配置文件


su root 
vi /etc/security/limits.conf


备注：使用最高权限 修改安全配置 在文件末尾加入


# End of file
elsearch       hard        nofile        65536 
elsearch       soft        nofile        65536
*               soft       nproc         4096
*               hard       nproc         4096 


备注： elsearch为用户名 可以是使用*进行通配  
nofile 最大打开文件数目
nproc 最大打开线程数目


[3]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]


step2:修改系统配置文件


vi /etc/sysctl.conf 


备注：行末加上vm.max_map_count = 655360 ，esc +：wq保存退出


# sysctl settings are defined through files in
# /usr/lib/sysctl.d/, /run/sysctl.d/, and /etc/sysctl.d/.
# Vendors settings live in /usr/lib/sysctl.d/.
# To override a whole file, create a new file with the same in
# /etc/sysctl.d/ and put new settings there. To override
# only specific settings, add a file with a lexically later
# name in /etc/sysctl.d/ and put new settings there.
# For more information, see sysctl.conf(5) and sysctl.d(5).
vm.max_map_count = 655360


备注：vm.max_map_count = 655360 值大于错误提示值


step3:重启


su elsearch
/elasticsearch-6.3.0/bin/elasticsearch


五、org.elasticsearch.bootstrap.StartupException: java.lang.IllegalStateException: failed to obtain node locks, tried [[/home/elasticsearch-6.3.0/data/elasticsearch]] with lock id [0]; maybe these locations are not writable or multiple nodes were started without increasing [node.max_local_storage_nodes] (was [1])?

 详细报错：

[2018-06-20T04:23:25,003][WARN ][o.e.b.ElasticsearchUncaughtExceptionHandler] [] uncaught exception in thread [main]
org.elasticsearch.bootstrap.StartupException: java.lang.IllegalStateException: failed to obtain node locks, tried [[/home/elasticsearch-6.3.0/data/elasticsearch]] with lock id [0]; maybe these locations are not writable or multiple nodes were started without increasing [node.max_local_storage_nodes] (was [1])?
	at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:140) ~[elasticsearch-6.3.0.jar:6.3.0]
	at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:127) ~[elasticsearch-6.3.0.jar:6.3.0]
	at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) ~[elasticsearch-6.3.0.jar:6.3.0]
	at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124) ~[elasticsearch-cli-6.3.0.jar:6.3.0]
	at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-cli-6.3.0.jar:6.3.0]
	at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:93) ~[elasticsearch-6.3.0.jar:6.3.0]
	at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:86) ~[elasticsearch-6.3.0.jar:6.3.0]
Caused by: java.lang.IllegalStateException: failed to obtain node locks, tried [[/home/elasticsearch-6.3.0/data/elasticsearch]] with lock id [0]; maybe these locations are not writable or multiple nodes were started without increasing [node.max_local_storage_nodes] (was [1])?
	at org.elasticsearch.env.NodeEnvironment.<init>(NodeEnvironment.java:243) ~[elasticsearch-6.3.0.jar:6.3.0]
	at org.elasticsearch.node.Node.<init>(Node.java:270) ~[elasticsearch-6.3.0.jar:6.3.0]
	at org.elasticsearch.node.Node.<init>(Node.java:252) ~[elasticsearch-6.3.0.jar:6.3.0]
	at org.elasticsearch.bootstrap.Bootstrap$5.<init>(Bootstrap.java:213) ~[elasticsearch-6.3.0.jar:6.3.0]
	at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:213) ~[elasticsearch-6.3.0.jar:6.3.0]
	at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:326) ~[elasticsearch-6.3.0.jar:6.3.0]
	at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:136) ~[elasticsearch-6.3.0.jar:6.3.0]
	... 6 more

原因：线程占用


解决：重新启动


step1:杀死elasticsearch线程


ps -ef | grep elastic


kill -9 2002

step2: 重启


su elsearch
/elasticsearch-6.3.0/bin/elasticsearch


1、后台启动


 /home/elasticsearch-6.3.0/bin/elasticsearch -d

2、curl验证


curl http://zk01:9200

3、网站验证

org.elasticsearch.bootstrap.StartupException: 
java.lang.RuntimeException: can not run elasticsearch as root
at org.elasticsearch.boots...
				
Issue
Exception in thread "main" org.elasticsearch.bootstrap.BootstrapException: java.nio.file.AccessDeniedException: /usr/local/elasticsearch/elasticsearch-7.1.0/config/elasticsearch.keystore
Likely ...

				
初始化密钥库问题
Exception in thread "main" org.elasticsearch.bootstrap.BootstrapException: java.nio.file.AccessDeniedException: /usr/local/elasticsearch/elasticsearch-6.6.0/config/elasticsearch.keystore
Like...

解决方法：
该xxxx.dat文件，最后一个参数后没有加回车。这样，在Virtual User Genertator里面能读出最后一个参数，查看列表也正确，但是在Cotroller工具里却无法识别最后一个参数，所以报错。
2  Error-26612:HTTP Status-Code=500(Internal Server Er...
				
1.由gc引起节点脱离集群
     因为gc时会使jvm停止工作，如果某个节点gc时间过长，master ping3次（zen discovery默认ping失败重试3次）不通后就会把该节点剔除出集群，从而导致索引进行重新分配。
解决方法：
（1）优化gc，减少gc时间。（2）调大zen discovery的重试次数（es参数：ping_retries）和超时时间（es参数：ping_ti

				
1、使用root用户启动失败
在有一次搭建elasticsearch的时候，使用systemctl启动elasticsearch失败，然后在bin目录下面去使用启动脚本启动，发现报错不能用root用户启动，报“Caused by: java.lang.RuntimeException: can not run elasticsearch as root”：
[root@localhost bin]...

				
本来只想安安静静装个es，看网上的步骤就两三步就完成了，但是到了我这里，因为我的服务器是新的，只有jdk是我自己装的1.8版本的，装的时候那真的是把坑都踩遍了，看样子不光是软件问题，环境也有很大的关系。下面就把我遇到的坑都贴出来看看吧。
安装的过程就只是解压，修改配置文件，启动的时候，错误就都来了。
启动bin目录下的elasticsearch
[root@VM_0_4_centos elasti...

今天收到告警，vcenter链接状态异常，检查从center发现，输入正确的用户名和密码后，无法登录，提示：User name and password are required（用户名和密码被需要），即等同你未输入用户名和密码；输入错误的密码会提示身份认证非法，说明身份认证还是起作用的，服务状态可判断为正常。
页面强行登录时，报400错误。
问题分析：
1、vcenter输入正确的用户名和密码，无法登录，且提示需要用户名和密码，明明输入了为啥会不识别呢？后沟通确认无人修改过密码；即时修改过，应
[o.e.b.ElasticsearchUncaughtExceptionHandler] [node-1] uncaught exception in thread [main]
org.elasticsearch.bootstrap.StartupException:...
				
完整的错误信息是：uncaught exception in thread [main]org.elasticsearch.bootstrap.StartupException:
java.lang.IllegalStateException: failed to obtain node locks, tried [[/data/elasticsearch]] with lock id [0...

				
[2019-03-18T22:24:21,549][WARN ][o.e.b.ElasticsearchUncaughtExceptionHandler] [] uncaught exception in thread [main]
org.elasticsearch.bootstrap.StartupException: java.lang.RuntimeException: can not ...

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DNS服务器：domain name server == 域名解析服务  ##解析就是把域名变成IP
vim /etc/resolv.conf ##dns的指向文件 不需要重新启动网络立即生效
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