无法加载 JNA 本机支持库 Elasticsearch 6.x

Question

我在 Debian 7 (wheezy) 中安装了 Elasticsearch 6.x。我尝试从 service elasticsearch start 开始，但它给我一条错误消息

root@debian:~# sudo -i service elasticsearch start
[FAIL] Starting Elasticsearch Server: failed!

我试图查看 nano /var/log/elasticsearch/elasticsearch.log 处的 elasticsearch 日志文件，但出现此错误

[2017-12-14T11:25:39,153][WARN ][o.e.b.Natives            ] unable to load JNA native support library, native methods will be disabled.
java.lang.UnsatisfiedLinkError: Native library (com/sun/jna/linux-x86/libjnidispatch.so) not found in resource path ([file:/usr/share/elasticsearch/lib/lucene-spatial-$
        at com.sun.jna.Native.loadNativeDispatchLibraryFromClasspath(Native.java:962) ~[jna-4.4.0-1.jar:4.4.0 (b0)]
        at com.sun.jna.Native.loadNativeDispatchLibrary(Native.java:922) ~[jna-4.4.0-1.jar:4.4.0 (b0)]
        at com.sun.jna.Native.<clinit>(Native.java:190) ~[jna-4.4.0-1.jar:4.4.0 (b0)]
        at java.lang.Class.forName0(Native Method) ~[?:1.8.0_151]
        at java.lang.Class.forName(Class.java:264) ~[?:1.8.0_151]
        at org.elasticsearch.bootstrap.Natives.<clinit>(Natives.java:45) [elasticsearch-6.1.0.jar:6.1.0]
        at org.elasticsearch.bootstrap.Bootstrap.initializeNatives(Bootstrap.java:103) [elasticsearch-6.1.0.jar:6.1.0]
        at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:171) [elasticsearch-6.1.0.jar:6.1.0]
        at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:322) [elasticsearch-6.1.0.jar:6.1.0]
        at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:121) [elasticsearch-6.1.0.jar:6.1.0]
        at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:112) [elasticsearch-6.1.0.jar:6.1.0]
        at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) [elasticsearch-6.1.0.jar:6.1.0]
        at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124) [elasticsearch-cli-6.1.0.jar:6.1.0]
        at org.elasticsearch.cli.Command.main(Command.java:90) [elasticsearch-cli-6.1.0.jar:6.1.0]
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) [elasticsearch-6.1.0.jar:6.1.0]
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:85) [elasticsearch-6.1.0.jar:6.1.0]
[2017-12-14T11:25:39,212][WARN ][o.e.b.Natives            ] cannot check if running as root because JNA is not available
[2017-12-14T11:25:39,212][WARN ][o.e.b.Natives            ] cannot install system call filter because JNA is not available
[2017-12-14T11:25:39,215][WARN ][o.e.b.Natives            ] cannot register console handler because JNA is not available
[2017-12-14T11:25:39,256][WARN ][o.e.b.Natives            ] cannot getrlimit RLIMIT_NPROC because JNA is not available
[2017-12-14T11:25:39,256][WARN ][o.e.b.Natives            ] cannot getrlimit RLIMIT_AS beacuse JNA is not available
[2017-12-14T11:25:39,256][WARN ][o.e.b.Natives            ] cannot getrlimit RLIMIT_FSIZE because JNA is not available

我该如何解决这个问题？我已经安装了 java，它是 version javac 1.8.0_151

我的代码可能出了什么问题？ `

Answer 1

检查您的 /tmp/ 目录的权限。它一定有 noexec.

/tmp 需要 exec 来支持 JNA。解决方法是在 elasticsearch sysconfig 文件中指定 tmp 目录。

类似于export JAVA_OPTS="-Djava.io.tmpdir=$ES_HOME/tmp"

确保存在 $ES_HOME/tmp 目录并且 elasticsearch 用户对其具有写入权限。

我在使用强化的 OS 时遇到了这个问题，还因为默认的 umask 是 0027。

Answer 2

我在 Windows 10 从命令提示符运行ning 时遇到了同样的问题：

unable to load JNA native support library, native methods will be disabled.

要解决此问题，只需运行 elasticsearch.exe 具有管理员权限 （单击开始 -> 输入 "Command" -> 右击 "Command Prompt" -> select "Run as Administrator")

Answer 3

好的，我找到了解决方案。显然，我的虚拟机内存存储 (RAM) 为 1 GB - 2 GB，因此我将虚拟机的 RAM 容量增加到至少 4GB，然后重新启动机器。弹性搜索开始工作得很好。

Answer 4

转到/etc/sysconfig/elasticsearch
添加ES_JAVA_OPTS="-Djna.tmpdir=/var/lib/elasticsearch/tmp".

（对于较新的 Elasticsearch，使用 Djava.io.tmpdir 而不是 Djna.tmpdir）
使用 systemctl start elasticsearch 或 service start elasticsearch 启动 Elasticsearch。
您现在可以看到在 /var/lib/elasticsearch/ 中创建了 tmp 文件夹。
此文件夹应具有 elasticsearch 用户
检查名称 i -l /var/lib/elasticsearch

确保权限文件有如下权限

dr-xr-xr-x root          root          /
drwxr-xr-x root          root          var
drwxr-xr-x root          root          lib
drwxr-x--- elasticsearch elasticsearch elasticsearch

希望您的问题得到解决。

Answer 5

我在通过 YUM 安装了 ElasticSearch 7.8 的 CentOS7 cPanel 服务器上遇到了同样的问题。根据，我做了以下操作：

在/etc/sysconfig/elasticsearch

ES_JAVA_OPTS="-Djna.tmpdir=/var/lib/elasticsearch/tmp"

mkdir -p /var/lib/elasticsearch/tmp
chown -R elasticsearch.elasticsearch /var/lib/elasticsearch/tmp

Answer 6

下面对我有用：

PUT your_index_name/_settings
    {
    "index": {
    "blocks": {
    "read_only_allow_delete": "false"
    }
    }
    }

我关注了下面link:

https://discuss.elastic.co/t/forbidden-12-index-read-only-allow-delete-api/110282/4

Answer 7

在 Ubuntu 18.04，解决方案是

sudo systemctl edit --full elasticsearch.service

添加一行

Environment=ES_JAVA_OPTS="-Djava.io.tmpdir=/var/lib/elasticsearch/tmp"

在 vi 中使用 -x 退出

正在重新启动服务

sudo systemctl restart elasticsearch.service

无法加载 JNA 本机支持库 Elasticsearch 6.x

Unable to load JNA native support library Elasticsearch 6.x

linux

mount

umask

jna

elasticsearch