# Elasticsearch installation issues **URL:** \ **Category:** Elasticsearch\ **Created:** [November 7, 2023, 4:06am UTC](https://discuss.elastic.co/t/elasticsearch-installation-issues/346584 "2023-11-07T04:06:46Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![bosimaosh](https://avatars.discourse-cdn.com/v4/letter/b/85f322/32.png) [@bosimaosh](https://discuss.elastic.co/u/bosimaosh)\ **Post date:** [November 7, 2023, 4:06am UTC](https://discuss.elastic.co/t/elasticsearch-installation-issues/346584/1 "2023-11-07T04:06:47Z")
After installing Elasticsearch, when I try to start the `elasticsearch.service` service, it fails to start and I receive the following error. system is Ubuntu 20.04. Elasticsearch version is 7.17.14 ```auto sudo systemctl status elasticsearch.service ● elasticsearch.service - Elasticsearch Loaded: loaded (/etc/systemd/system/elasticsearch.service; disabled; vendor preset: enabled) Active: failed (Result: exit-code) since Tue 2023-11-07 12:04:54 CST; 9s ago Docs: https://www.elastic.co Process: 25875 ExecStart=/usr/share/elasticsearch/bin/systemd-entrypoint -p ${PID_DIR}/elasticsearch.pid --quiet (code=exited, status=1/FAILURE) Main PID: 25875 (code=exited, status=1/FAILURE) Tasks: 0 (limit: 9424) Memory: 16.0M CGroup: /system.slice/elasticsearch.service Nov 07 12:04:53 CNSHCHJ-DEV10849 systemd-entrypoint[25875]: at java.base/java.lang.Class.forName(Class.java:412) Nov 07 12:04:53 CNSHCHJ-DEV10849 systemd-entrypoint[25875]: at org.elasticsearch.bootstrap.Natives.(Natives.java:34) Nov 07 12:04:53 CNSHCHJ-DEV10849 systemd-entrypoint[25875]: at org.elasticsearch.bootstrap.Bootstrap.initializeNatives(Bootstrap.java:106) Nov 07 12:04:53 CNSHCHJ-DEV10849 systemd-entrypoint[25875]: at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:183) Nov 07 12:04:53 CNSHCHJ-DEV10849 systemd-entrypoint[25875]: at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:434) Nov 07 12:04:53 CNSHCHJ-DEV10849 systemd-entrypoint[25875]: ... 7 more Nov 07 12:04:53 CNSHCHJ-DEV10849 systemd-entrypoint[25875]: ERROR: Elasticsearch did not exit normally - check the logs at /var/log/elasticsearch/elasticsearch.log Nov 07 12:04:54 CNSHCHJ-DEV10849 systemd[1]: elasticsearch.service: Main process exited, code=exited, status=1/FAILURE Nov 07 12:04:54 CNSHCHJ-DEV10849 systemd[1]: elasticsearch.service: Failed with result 'exit-code'. Nov 07 12:04:54 CNSHCHJ-DEV10849 systemd[1]: Failed to start Elasticsearch. ``` I found the following error in the log file "/var/log/elasticsearch/elasticsearch.log." ```auto [2023-11-07T12:04:53,558][INFO][o.e.n.Node] [CNSHCHJ-DEV10849] started [2023-11-07T12:04:53,559][ERROR][o.e.b.ElasticsearchUncaughtExceptionHandler] [CNSHCHJ-DEV10849] fatal error in thread [main], exiting java.lang.NoClassDefFoundError: Could not initialize class com.sun.jna.Native at org.elasticsearch.systemd.Libsystemd.lambda$static$0(Libsystemd.java:23) ~[?:?] at java.security.AccessController.doPrivileged(AccessController.java:319) ~[?:?] at org.elasticsearch.systemd.Libsystemd.(Libsystemd.java:22) ~[?:?] at org.elasticsearch.systemd.SystemdPlugin.sd_notify(SystemdPlugin.java:113) ~[?:?] at org.elasticsearch.systemd.SystemdPlugin.onNodeStarted(SystemdPlugin.java:124) ~[?:?] at java.util.ArrayList.forEach(ArrayList.java:1596) ~[?:?] at org.elasticsearch.node.Node.start(Node.java:1277) ~[elasticsearch-7.17.14.jar:7.17.14] at org.elasticsearch.bootstrap.Bootstrap.start(Bootstrap.java:335) ~[elasticsearch-7.17.14.jar:7.17.14] at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:443) ~[elasticsearch-7.17.14.jar:7.17.14] at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:169) ~[elasticsearch-7.17.14.jar:7.17.14] at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:160) ~[elasticsearch-7.17.14.jar:7.17.14] at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:77) ~[elasticsearch-7.17.14.jar:7.17.14] at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:112) ~[elasticsearch-cli-7.17.14.jar:7.17.14] at org.elasticsearch.cli.Command.main(Command.java:77) ~[elasticsearch-cli-7.17.14.jar:7.17.14] at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:125) ~[elasticsearch-7.17.14.jar:7.17.14] at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:80) ~[elasticsearch-7.17.14.jar:7.17.14] Caused by: java.lang.ExceptionInInitializerError: Exception java.lang.UnsatisfiedLinkError: /tmp/elasticsearch-2814356569535137225/jna13042864340358578611.tmp: /tmp/elasticsearch-2814356569535137225/jna13042864340358578611.tmp: failed to map segment from shared object [in thread "main"] at jdk.internal.loader.NativeLibraries.load(Native Method) ~[?:?] at jdk.internal.loader.NativeLibraries$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:2418) ~[?:?] at java.lang.Runtime.load0(Runtime.java:852) ~[?:?] at java.lang.System.load(System.java:2021) ~[?:?] at com.sun.jna.Native.loadNativeDispatchLibraryFromClasspath(Native.java:1045) ~[jna-5.10.0.jar:5.10.0 (b0)] at com.sun.jna.Native.loadNativeDispatchLibrary(Native.java:1015) ~[jna-5.10.0.jar:5.10.0 (b0)] at com.sun.jna.Native.(Native.java:221) ~[jna-5.10.0.jar:5.10.0 (b0)] at java.lang.Class.forName0(Native Method) ~[?:?] at java.lang.Class.forName(Class.java:421) ~[?:?] at java.lang.Class.forName(Class.java:412) ~[?:?] at org.elasticsearch.bootstrap.Natives.(Natives.java:34) ~[elasticsearch-7.17.14.jar:7.17.14] at org.elasticsearch.bootstrap.Bootstrap.initializeNatives(Bootstrap.java:106) ~[elasticsearch-7.17.14.jar:7.17.14] at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:183) ~[elasticsearch-7.17.14.jar:7.17.14] at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:434) ~[elasticsearch-7.17.14.jar:7.17.14] ``` Want to ask what I should do to solve this problem ---
**Author:** ![bosimaosh](https://avatars.discourse-cdn.com/v4/letter/b/85f322/32.png) [@bosimaosh](https://discuss.elastic.co/u/bosimaosh)\ **Post date:** [November 7, 2023, 6:41am UTC](https://discuss.elastic.co/t/elasticsearch-installation-issues/346584/2 "2023-11-07T06:41:43Z")
Then I found the solution in this link "[Centos 7 and - java.lang.NoClassDefFoundError: Could not initialize class com.sun.jna.Native · Issue #57018 · elastic/elasticsearch · GitHub](https://github.com/elastic/elasticsearch/issues/57018)" ![image](https://us1.discourse-cdn.com/elastic/original/3X/a/e/ae6700efa5409d2406f2fa9fc372403f74d7a05c.png) Now my service is running But I'm still curious about the positioning of this problem ---
**Author:** ![sholzhauer](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/sholzhauer/32/110282_2.png) [@sholzhauer](https://discuss.elastic.co/u/sholzhauer)\ **Post date:** [November 8, 2023, 10:10am UTC](https://discuss.elastic.co/t/elasticsearch-installation-issues/346584/3 "2023-11-08T10:10:57Z")
Reading through the Github issue you mentioned, it appears to be an issue which happens when the location is not writable to the process. Which i.m.o is not an elastic issue but has to do with the system configuration. However, elastic could improve the error if that is the case. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [December 6, 2023, 10:10am UTC](https://discuss.elastic.co/t/elasticsearch-installation-issues/346584/4 "2023-12-06T10:10:58Z")
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