# Elasticsearch 8 won't start on Centos 7 **URL:** \ **Category:** Elasticsearch\ **Created:** [June 22, 2023, 6:50pm UTC](https://discuss.elastic.co/t/elasticsearch-8-wont-start-on-centos-7/336722 "2023-06-22T18:50:35Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Geek2.0](https://avatars.discourse-cdn.com/v4/letter/g/ce73a5/32.png) [@Geek2.0](https://discuss.elastic.co/u/Geek2.0)\ **Post date:** [June 22, 2023, 6:50pm UTC](https://discuss.elastic.co/t/elasticsearch-8-wont-start-on-centos-7/336722/1 "2023-06-22T18:50:35Z")
I have installed Elasticsearch 7.8 on centos 7 server and it was running normally. After uninstalling it and installing elasticsearch 8.8, I get the following error when trying to start it with the command _sudo systemctl start elasticsearch_ Job for elasticsearch.service failed because the control process exited with error code. See "systemctl status elasticsearch.service" and "journalctl -xe" for details. I have tried to modify the default `network.host` and `host.port` settings to `network.host: 0.0.0.0` and `http.port: 9200` to fix the issue, but it didn't fix the error. ---
**Author:** ![Rios](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rios/32/95745_2.png) [@Rios](https://discuss.elastic.co/u/Rios)\ **Post date:** [June 23, 2023, 5:31am UTC](https://discuss.elastic.co/t/elasticsearch-8-wont-start-on-centos-7/336722/2 "2023-06-23T05:31:05Z")
Check the logs at the /var/log/elasticsearch directory. If there is no details, change `rootLogger.level` to debug in log4j2.properties, and restart ES. By default, you need 50% free RAM and 15% free disk space. ---
**Author:** ![Geek2.0](https://avatars.discourse-cdn.com/v4/letter/g/ce73a5/32.png) [@Geek2.0](https://discuss.elastic.co/u/Geek2.0)\ **Post date:** [June 23, 2023, 7:57am UTC](https://discuss.elastic.co/t/elasticsearch-8-wont-start-on-centos-7/336722/3 "2023-06-23T07:57:00Z")
> [@Rios](#): > > /var/log/elasticsearch Hi Rios, thanks for your reply. Here is the error I get in the logs: ```auto > [2023-06-23T02:41:20,712][ERROR][o.e.b.Elasticsearch] [6747283.taalim.space] fatal exception while booting Elasticsearch > java.lang.NoClassDefFoundError: Could not initialize class com.sun.jna.Native > at org.elasticsearch.systemd.Libsystemd.lambda$static$0(Libsystemd.java:23) ~[?:?] > at java.security.AccessController.doPrivileged(AccessController.java:319) ~[?:?] > at org.elasticsearch.systemd.Libsystemd.(Libsystemd.java:22) ~[?:?] > at org.elasticsearch.systemd.SystemdPlugin.sd_notify(SystemdPlugin.java:117) ~[?:?] > at org.elasticsearch.systemd.SystemdPlugin.onNodeStarted(SystemdPlugin.java:128) ~[?:?] > at java.lang.Iterable.forEach(Iterable.java:75) ~[?:?] > at org.elasticsearch.node.Node.start(Node.java:1515) ~[elasticsearch-8.8.1.jar:?] > at org.elasticsearch.bootstrap.Elasticsearch.start(Elasticsearch.java:438) ~[elasticsearch-8.8.1.jar:?] > at org.elasticsearch.bootstrap.Elasticsearch.initPhase3(Elasticsearch.java:231) ~[elasticsearch-8.8.1.jar:?] > at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:67) ~[elasticsearch-8.8.1.jar:?] > Caused by: java.lang.ExceptionInInitializerError: Exception java.lang.UnsatisfiedLinkError: /tmp/elasticsearch-11646769667885113193/jna1982191581823228932.tmp: /tmp/elasticsearch-11646769667885113193/jna1982191581823228932.tmp: failed to map segment from shared object: Operation not permitted [in thread "main"] > at jdk.internal.loader.NativeLibraries.load(Native Method) ~[?:?] > at jdk.internal.loader.NativeLibraries$NativeLibraryImpl.open(NativeLibraries.java:331) ~[?:?] > at jdk.internal.loader.NativeLibraries.loadLibrary(NativeLibraries.java:197) ~[?:?] > at jdk.internal.loader.NativeLibraries.loadLibrary(NativeLibraries.java:139) ~[?:?] > at java.lang.ClassLoader.loadLibrary(ClassLoader.java:2404) ~[?:?] > at java.lang.Runtime.load0(Runtime.java:817) ~[?:?] > at java.lang.System.load(System.java:2015) ~[?:?] > at com.sun.jna.Native.loadNativeDispatchLibraryFromClasspath(Native.java:1045) ~[jna-5.10.0.jar:?] > at com.sun.jna.Native.loadNativeDispatchLibrary(Native.java:1015) ~[jna-5.10.0.jar:?] > at com.sun.jna.Native.(Native.java:221) ~[jna-5.10.0.jar:?] > at java.lang.Class.forName0(Native Method) ~[?:?] > at java.lang.Class.forName(Class.java:391) ~[?:?] > at java.lang.Class.forName(Class.java:382) ~[?:?] > at org.elasticsearch.bootstrap.Natives.(Natives.java:34) ~[elasticsearch-8.8.1.jar:?] > at org.elasticsearch.bootstrap.Elasticsearch.initializeNatives(Elasticsearch.java:261) ~[elasticsearch-8.8.1.jar:?] > at org.elasticsearch.bootstrap.Elasticsearch.initPhase2(Elasticsearch.java:161) ~[elasticsearch-8.8.1.jar:?] > at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:66) ~[elasticsearch-8.8.1.jar:?] ``` ---
**Author:** ![Geek2.0](https://avatars.discourse-cdn.com/v4/letter/g/ce73a5/32.png) [@Geek2.0](https://discuss.elastic.co/u/Geek2.0)\ **Post date:** [June 23, 2023, 8:05am UTC](https://discuss.elastic.co/t/elasticsearch-8-wont-start-on-centos-7/336722/4 "2023-06-23T08:05:36Z")
I just solved the issue by: Changing in /etc/elasticsearch/jvm.options #-Djava.io.tmpdir=${ES\_TMPDIR} -Djava.io.tmpdir=/var/log/elasticsearch ---
**Author:** ![Rios](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rios/32/95745_2.png) [@Rios](https://discuss.elastic.co/u/Rios)\ **Post date:** [June 23, 2023, 8:06am UTC](https://discuss.elastic.co/t/elasticsearch-8-wont-start-on-centos-7/336722/5 "2023-06-23T08:06:26Z")
elasticsearch user or user under which you are running process doesn't have permissions on tmp directory. Yes, that's change ${ES\_TMPDIR} or -Djava.io.tmpdir in jvm.options ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 21, 2023, 8:06am UTC](https://discuss.elastic.co/t/elasticsearch-8-wont-start-on-centos-7/336722/6 "2023-07-21T08:06:43Z")
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