# java.lang.InternalError: internal error: SHA-1 not available **URL:** \ **Category:** Elasticsearch\ **Created:** [May 22, 2017, 11:13pm UTC](https://discuss.elastic.co/t/java-lang-internalerror-internal-error-sha-1-not-available/86743 "2017-05-22T23:13:16Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![david\_doe](https://avatars.discourse-cdn.com/v4/letter/d/46a35a/32.png) [@david\_doe](https://discuss.elastic.co/u/david_doe)\ **Post date:** [May 22, 2017, 11:13pm UTC](https://discuss.elastic.co/t/java-lang-internalerror-internal-error-sha-1-not-available/86743/1 "2017-05-22T23:13:16Z")
Hi Sorry if this question has been asked before, i searched but no where to be found I'm unable to start elasticsearch I did reinstall JAVA but nothing changed Trying to use elasticsearch with wordpress Following this [GitHub - 10up/ElasticPress: A fast and flexible search and query engine for WordPress.](https://github.com/10up/ElasticPress) Tuto **I installed Elastic before java** (just a mistake) OS centos 7.1 Elasticsearch v5.4 Java 1.8.0.131 > **service elasticsearch status** > elasticsearch.service - Elasticsearch > Loaded: loaded (/usr/lib/systemd/system/elasticsearch.service; enabled; vendor preset: disabled) > Active: failed (Result: exit-code) since Mon 2017-05-22 22:36:40 UTC; 2s ago > Docs: [http://www.elastic.co](http://www.elastic.co) > Process: 1657 ExecStart=/usr/share/elasticsearch/bin/elasticsearch -p ${PID\_DIR}/elasticsearch.pid --quiet -Edefault.path.logs=${LOG\_DIR} -Edefault.path.data=${DATA\_DIR} -Edefault.path.conf=${CONF\_DIR} (code=exited, status=128) > Process: 1655 ExecStartPre=/usr/share/elasticsearch/bin/elasticsearch-systemd-pre-exec (code=exited, status=0/SUCCESS) > Main PID: 1657 (code=exited, status=128) > May 22 22:36:37 Movie systemd[1]: Starting Elasticsearch... > May 22 22:36:37 Movie systemd[1]: Started Elasticsearch. > May 22 22:36:40 Movie systemd[1]: elasticsearch.service: main process exited, code=exited, status=128/n/a > May 22 22:36:40 Movie systemd[1]: Unit elasticsearch.service entered failed state. > May 22 22:36:40 Movie systemd[1]: elasticsearch.service failed. * * * **elasticsearch.yml** > cluster.name: mycluster > node.name: mycluster1 > network.host: localhost > http.port: 9200 * * * **Log** > [ERROR][o.e.b.ElasticsearchUncaughtExceptionHandler] [mycluster1] fatal error in thread [main], exiting > java.lang.InternalError: internal error: SHA-1 not available. > at sun.security.provider.SecureRandom.init(SecureRandom.java:108) ~[?:1.8.0\_131] > at sun.security.provider.SecureRandom.(SecureRandom.java:79) ~[?:1.8.0\_131] > at java.security.SecureRandom.getDefaultPRNG(SecureRandom.java:198) ~[?:1.8.0\_131] > at java.security.SecureRandom.(SecureRandom.java:162) ~[?:1.8.0\_131] > at java.io.File$TempDirectory.(File.java:1901) ~[?:1.8.0\_131] > at java.io.File.createTempFile(File.java:2010) ~[?:1.8.0\_131] > at com.sun.jna.Native.extractFromResourcePath(Native.java:1059) ~[jna-4.4.0.jar:4.4.0 (b0)] > at com.sun.jna.Native.loadNativeDispatchLibraryFromClasspath(Native.java:937) ~[jna-4.4.0.jar:4.4.0 (b0)] > at com.sun.jna.Native.loadNativeDispatchLibrary(Native.java:922) ~[jna-4.4.0.jar:4.4.0 (b0)] > at com.sun.jna.Native.(Native.java:190) ~[jna-4.4.0.jar:4.4.0 (b0)] > at java.lang.Class.forName0(Native Method) ~[?:1.8.0\_131] > at java.lang.Class.forName(Class.java:264) ~[?:1.8.0\_131] > at org.elasticsearch.bootstrap.Natives.(Natives.java:45) ~[elasticsearch-5.4.0.jar:5.4.0] > at org.elasticsearch.bootstrap.Bootstrap.initializeNatives(Bootstrap.java:105) ~[elasticsearch-5.4.0.jar:5.4.0] > at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:204) ~[elasticsearch-5.4.0.jar:5.4.0] > at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:360) ~[elasticsearch-5.4.0.jar:5.4.0] > at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:123) ~[elasticsearch-5.4.0.jar:5.4.0] > at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:114) ~[elasticsearch-5.4.0.jar:5.4.0] > at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:67) ~[elasticsearch-5.4.0.jar:5.4.0] > at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:122) ~[elasticsearch-5.4.0.jar:5.4.0] > at org.elasticsearch.cli.Command.main(Command.java:88) ~[elasticsearch-5.4.0.jar:5.4.0] > at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:91) ~[elasticsearch-5.4.0.jar:5.4.0] > at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:84) ~[elasticsearch-5.4.0.jar:5.4.0] > Caused by: java.security.NoSuchAlgorithmException: SHA MessageDigest not available > at sun.security.jca.GetInstance.getInstance(GetInstance.java:159) ~[?:1.8.0\_131] > at java.security.Security.getImpl(Security.java:695) ~[?:1.8.0\_131] > at java.security.MessageDigest.getInstance(MessageDigest.java:167) ~[?:1.8.0\_131] > at sun.security.provider.SecureRandom.init(SecureRandom.java:106) ~[?:1.8.0\_131] > ... 22 more ---
**Author:** ![jprante](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jprante/32/44941_2.png) [@jprante](https://discuss.elastic.co/u/jprante)\ **Post date:** [May 23, 2017, 1:08pm UTC](https://discuss.elastic.co/t/java-lang-internalerror-internal-error-sha-1-not-available/86743/2 "2017-05-23T13:08:28Z")
You have misconfigured your Java. Remove all Java packages and installations, including custom environment variables, and re-install the JDK you want again. ---
**Author:** ![david\_doe](https://avatars.discourse-cdn.com/v4/letter/d/46a35a/32.png) [@david\_doe](https://discuss.elastic.co/u/david_doe)\ **Post date:** [May 24, 2017, 12:17am UTC](https://discuss.elastic.co/t/java-lang-internalerror-internal-error-sha-1-not-available/86743/3 "2017-05-24T00:17:02Z")
Hi jprante Thank You for your reply I did forgot to mention that i'm using centmin mod, if that may play a role. As for java all i did is yum install java, nothing more. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [June 21, 2017, 12:17am UTC](https://discuss.elastic.co/t/java-lang-internalerror-internal-error-sha-1-not-available/86743/4 "2017-06-21T00:17:17Z")
Closed on June 21, 2017, 12:17am UTC This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.