# Es5 couldn't start due to the missing license plugin **URL:** \ **Category:** Elasticsearch\ **Created:** [November 1, 2016, 8:17pm UTC](https://discuss.elastic.co/t/es5-couldnt-start-due-to-the-missing-license-plugin/64630 "2016-11-01T20:17:24Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![andrezh](https://avatars.discourse-cdn.com/v4/letter/a/f0a364/32.png) [@andrezh](https://discuss.elastic.co/u/andrezh)\ **Post date:** [November 1, 2016, 8:17pm UTC](https://discuss.elastic.co/t/es5-couldnt-start-due-to-the-missing-license-plugin/64630/1 "2016-11-01T20:17:24Z")
Hi, After upgrading es to 5.0, I couldn't launch it. I checked the log, and it initially says the plugin license is incompatible. I removed the license. Now I couldn't install the latest license to es 5.0. I searched around and couldn't find any license plugins. Anyone knows how to install the latest license plugin? thanks ---
**Author:** ![nik9000](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/nik9000/32/44947_2.png) [@nik9000](https://discuss.elastic.co/u/nik9000)\ **Post date:** [November 1, 2016, 9:01pm UTC](https://discuss.elastic.co/t/es5-couldnt-start-due-to-the-missing-license-plugin/64630/2 "2016-11-01T21:01:16Z")
All of those plugins are now part of a plugin called `x-pack`. ---
**Author:** ![andrezh](https://avatars.discourse-cdn.com/v4/letter/a/f0a364/32.png) [@andrezh](https://discuss.elastic.co/u/andrezh)\ **Post date:** [November 1, 2016, 10:15pm UTC](https://discuss.elastic.co/t/es5-couldnt-start-due-to-the-missing-license-plugin/64630/3 "2016-11-01T22:15:39Z")
Thank you so much Nik! I added x-pack via elasticsearch-plugin. Now I have the following error indicating something wrong with the bootstrap. I also commented out the bootstrap.mlockall settings in elasticsearch.yml,but still got the same error. Any idea? [2016-11-01T15:09:10,587][ERROR][o.e.b.Bootstrap] Exception java.lang.IllegalArgumentException: unknown setting [bootstrap.mlockall] please check that any required plugins are installed, or check the breaking changes documentation for removed settings at org.elasticsearch.common.settings.AbstractScopedSettings.validate(AbstractScopedSettings.java:271) ~[elasticsearch-5.0.0.jar:5.0.0] at org.elasticsearch.common.settings.AbstractScopedSettings.validate(AbstractScopedSettings.java:239) ~[elasticsearch-5.0.0.jar:5.0.0] at org.elasticsearch.common.settings.SettingsModule.(SettingsModule.java:138) ~[elasticsearch-5.0.0.jar:5.0.0] at org.elasticsearch.node.Node.(Node.java:311) ~[elasticsearch-5.0.0.jar:5.0.0] at org.elasticsearch.node.Node.(Node.java:220) ~[elasticsearch-5.0.0.jar:5.0.0] at org.elasticsearch.bootstrap.Bootstrap$5.(Bootstrap.java:191) ~[elasticsearch-5.0.0.jar:5.0.0] at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:191) ~[elasticsearch-5.0.0.jar:5.0.0] at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:286) [elasticsearch-5.0.0.jar:5.0.0] at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:112) [elasticsearch-5.0.0.jar:5.0.0] at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:103) [elasticsearch-5.0.0.jar:5.0.0] at org.elasticsearch.cli.SettingCommand.execute(SettingCommand.java:54) [elasticsearch-5.0.0.jar:5.0.0] at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:96) [elasticsearch-5.0.0.jar:5.0.0] at org.elasticsearch.cli.Command.main(Command.java:62) [elasticsearch-5.0.0.jar:5.0.0] at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:80) [elasticsearch-5.0.0.jar:5.0.0] at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:73) [elasticsearch-5.0.0.jar:5.0.0] ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [November 2, 2016, 6:51am UTC](https://discuss.elastic.co/t/es5-couldnt-start-due-to-the-missing-license-plugin/64630/4 "2016-11-02T06:51:10Z")
Remove this line in your config: ``` bootstrap.mlockall: xxx ``` ---
**Author:** ![andrezh](https://avatars.discourse-cdn.com/v4/letter/a/f0a364/32.png) [@andrezh](https://discuss.elastic.co/u/andrezh)\ **Post date:** [November 2, 2016, 6:04pm UTC](https://discuss.elastic.co/t/es5-couldnt-start-due-to-the-missing-license-plugin/64630/5 "2016-11-02T18:04:55Z")
Thanks, After commenting out bootstrap.mlockall: xxx, and service stop on all the nodes, I restarted the elastic search. Now I got a different error message. This time, it seems during the bootstrapping, it has node validation exception. ... [2016-11-02T10:59:47,436][INFO][o.e.p.PluginsService] [xlab-node9] loaded module [lang-groovy] [2016-11-02T10:59:47,436][INFO][o.e.p.PluginsService] [xlab-node9] loaded module [lang-mustache] [2016-11-02T10:59:47,436][INFO][o.e.p.PluginsService] [xlab-node9] loaded module [lang-painless] [2016-11-02T10:59:47,436][INFO][o.e.p.PluginsService] [xlab-node9] loaded module [percolator] [2016-11-02T10:59:47,436][INFO][o.e.p.PluginsService] [xlab-node9] loaded module [reindex] [2016-11-02T10:59:47,437][INFO][o.e.p.PluginsService] [xlab-node9] loaded module [transport-netty3] [2016-11-02T10:59:47,437][INFO][o.e.p.PluginsService] [xlab-node9] loaded module [transport-netty4] [2016-11-02T10:59:47,437][INFO][o.e.p.PluginsService] [xlab-node9] loaded plugin [analysis-icu] [2016-11-02T10:59:47,437][INFO][o.e.p.PluginsService] [xlab-node9] loaded plugin [x-pack] [2016-11-02T10:59:49,903][INFO][o.e.n.Node] [xlab-node9] initialized [2016-11-02T10:59:49,903][INFO][o.e.n.Node] [xlab-node9] starting ... [2016-11-02T10:59:50,149][INFO][o.e.t.TransportService] [xlab-node9] publish\_address {172.19.62.4:9300}, bound\_addresses {[::1]:9300}, {127.0.0.1:9300}, {172.19.62.4:9300} [2016-11-02T10:59:50,154][INFO][o.e.b.BootstrapCheck] [xlab-node9] bound or publishing to a non-loopback or non-link-local address, enforcing bootstrap checks [2016-11-02T10:59:50,159][ERROR][o.e.b.Bootstrap] [xlab-node9] node validation exception bootstrap checks failed max file descriptors [65535] for elasticsearch process likely too low, increase to at least [65536] [2016-11-02T10:59:50,161][INFO][o.e.n.Node] [xlab-node9] stopping ... [2016-11-02T10:59:50,312][INFO][o.e.n.Node] [xlab-node9] stopped [2016-11-02T10:59:50,313][INFO][o.e.n.Node] [xlab-node9] closing ... [2016-11-02T10:59:50,325][INFO][o.e.n.Node] [xlab-node9] closed ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [November 2, 2016, 6:19pm UTC](https://discuss.elastic.co/t/es5-couldnt-start-due-to-the-missing-license-plugin/64630/6 "2016-11-02T18:19:25Z")
You must fix that: > max file descriptors [65535] for elasticsearch process likely too low, increase to at least [65536] Read [Bootstrap Checks | Elasticsearch Guide [8.11] | Elastic](https://www.elastic.co/guide/en/elasticsearch/reference/current/bootstrap-checks.html) ---
**Author:** ![andrezh](https://avatars.discourse-cdn.com/v4/letter/a/f0a364/32.png) [@andrezh](https://discuss.elastic.co/u/andrezh)\ **Post date:** [November 2, 2016, 8:10pm UTC](https://discuss.elastic.co/t/es5-couldnt-start-due-to-the-missing-license-plugin/64630/7 "2016-11-02T20:10:18Z")
Thanks so much! Yes, the max file descriptors is set too low. I fixed that. Now it complained a different error. I remembered that when installing the x-pack plugin, it complained about "plugin requires additional permissions" and list a few jdk related permissions. Do those matter? [2016-11-02T13:02:21,611][INFO][o.e.n.Node] [xlab-node9] initialized [2016-11-02T13:02:21,611][INFO][o.e.n.Node] [xlab-node9] starting ... [2016-11-02T13:02:21,825][INFO][o.e.t.TransportService] [xlab-node9] publish\_address {172.19.62.4:9300}, bound\_addresses {[::1]:9300}, {127.0.0.1:9300}, {172.19.62.4:9300} [2016-11-02T13:02:21,829][INFO][o.e.b.BootstrapCheck] [xlab-node9] bound or publishing to a non-loopback or non-link-local address, enforcing bootstrap checks [2016-11-02T13:02:31,736][INFO][o.e.x.m.e.Exporters] [xlab-node9] skipping exporter [default\_local] as it isn't ready yet [2016-11-02T13:02:31,737][ERROR][o.e.x.m.AgentService] [xlab-node9] exception when exporting documents org.elasticsearch.xpack.monitoring.exporter.ExportException: exporters are either not ready or faulty at org.elasticsearch.xpack.monitoring.exporter.Exporters.export(Exporters.java:188) ~[x-pack-5.0.0.jar:5.0.0] at org.elasticsearch.xpack.monitoring.AgentService$ExportingWorker.run(AgentService.java:208) [x-pack-5.0.0.jar:5.0.0] at java.lang.Thread.run(Thread.java:745) [?:1.8.0\_91] ---
**Author:** ![andrezh](https://avatars.discourse-cdn.com/v4/letter/a/f0a364/32.png) [@andrezh](https://discuss.elastic.co/u/andrezh)\ **Post date:** [November 2, 2016, 9:00pm UTC](https://discuss.elastic.co/t/es5-couldnt-start-due-to-the-missing-license-plugin/64630/8 "2016-11-02T21:00:35Z")
Another thing I found is that elasticsearch is started on just one node, even it keeps throwing out exceptions. But it couldn't discover other nodes specified in the elasticsearch.yml. discovery.zen.ping.unicast.hosts: ["172.19.62.4", "172.19.62.6", "172.19.62.8"] When I tried to access 172.19.62.4:9200, it asked for username,password. Is there a default credential for that? best, ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [November 2, 2016, 9:11pm UTC](https://discuss.elastic.co/t/es5-couldnt-start-due-to-the-missing-license-plugin/64630/9 "2016-11-02T21:11:17Z")
In 5.0 it's elastic / changeme ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 5, 2017, 10:07pm UTC](https://discuss.elastic.co/t/es5-couldnt-start-due-to-the-missing-license-plugin/64630/10 "2017-07-05T22:07:09Z")