java.lang.IllegalArgumentException: unknown setting [path.conf] please check that any required plugins are installed, or check the breaking changes documentation for removed settings

Elastic Stack Elasticsearch
1

Hi All,

Greeting !!

I am creating the new setup of ELK, and now i am unable to start ES service. Logs are below for reference.
ES Version: 7.9
elasticsearch.yml config:-
cluster.name: BPOConnectElasticSearch
2 node.name: "BPOConnectNode01"
3 node.master: true
4 node.data: true
5 node.local: true
6 index.number_of_shards: 1
7 #added
8 #index.number_of_replicas: 0
9 path.conf: /etc/elasticsearch/
10 path.data: /opt/data1/ESData/Index
11 path.work: /opt/data1/ESData/work
12 path.logs: /opt/data1/ESData/logs
13 path.repo: /opt/ESRepo
14 bootstrap.mlockall: true
15 #changed 0.0.0.0 to ip local host
16 network.host: Local host IP i given
17 discovery.zen.minimum_master_nodes: 1
18 discovery.zen.ping.multicast.enabled: True
19 discovery.zen.ping.unicast.hosts: ["IP1, IP1"] ----> removed ip for security purpose

at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:161) [elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) [elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:127) [elasticsearch-cli-7.9.1.jar:7.9.1]
at org.elasticsearch.cli.Command.main(Command.java:90) [elasticsearch-cli-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:126) [elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) [elasticsearch-7.9.1.jar:7.9.1]
Suppressed: java.lang.IllegalArgumentException: unknown setting [discovery.zen.ping.multicast.enabled] 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:544) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.common.settings.AbstractScopedSettings.validate(AbstractScopedSettings.java:489) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.common.settings.AbstractScopedSettings.validate(AbstractScopedSettings.java:460) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.common.settings.AbstractScopedSettings.validate(AbstractScopedSettings.java:431) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.common.settings.SettingsModule.(SettingsModule.java:149) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.node.Node.(Node.java:385) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.node.Node.(Node.java:277) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Bootstrap$5.(Bootstrap.java:227) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:227) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:393) [elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:170) [elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:161) [elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) [elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:127) [elasticsearch-cli-7.9.1.jar:7.9.1]
at org.elasticsearch.cli.Command.main(Command.java:90) [elasticsearch-cli-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:126) [elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) [elasticsearch-7.9.1.jar:7.9.1]
[2020-09-13T13:28:42,797][ERROR][o.e.b.ElasticsearchUncaughtExceptionHandler] [BPOConnectNode01] uncaught exception in thread [main]
org.elasticsearch.bootstrap.StartupException: java.lang.IllegalArgumentException: unknown setting [path.conf] please check that any required plugins are installed, or check the breaking changes documentation for removed settings
at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:174) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:161) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:127) ~[elasticsearch-cli-7.9.1.jar:7.9.1]
at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-cli-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:126) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) ~[elasticsearch-7.9.1.jar:7.9.1]
Caused by: java.lang.IllegalArgumentException: unknown setting [path.conf] 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:544) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.common.settings.AbstractScopedSettings.validate(AbstractScopedSettings.java:489) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.common.settings.AbstractScopedSettings.validate(AbstractScopedSettings.java:460) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.common.settings.AbstractScopedSettings.validate(AbstractScopedSettings.java:431) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.common.settings.SettingsModule.(SettingsModule.java:149) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.node.Node.(Node.java:385) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.node.Node.(Node.java:277) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Bootstrap$5.(Bootstrap.java:227) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:227) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:393) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:170) ~[elasticsearch-7.9.1.jar:7.9.1]
... 6 more
Suppressed: 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:544) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.common.settings.AbstractScopedSettings.validate(AbstractScopedSettings.java:489) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.common.settings.AbstractScopedSettings.validate(AbstractScopedSettings.java:460) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.common.settings.AbstractScopedSettings.validate(AbstractScopedSettings.java:431) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.common.settings.SettingsModule.(SettingsModule.java:149) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.node.Node.(Node.java:385) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.node.Node.(Node.java:277) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Bootstrap$5.(Bootstrap.java:227) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:227) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:393) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:170) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:161) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:127) ~[elasticsearch-cli-7.9.1.jar:7.9.1]
at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-cli-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:126) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) ~[elasticsearch-7.9.1.jar:7.9.1]
Suppressed: java.lang.IllegalArgumentException: unknown setting [path.work] 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:544) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.common.settings.AbstractScopedSettings.validate(AbstractScopedSettings.java:489) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.common.settings.AbstractScopedSettings.validate(AbstractScopedSettings.java:460) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.common.settings.AbstractScopedSettings.validate(AbstractScopedSettings.java:431) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.common.settings.SettingsModule.(SettingsModule.java:149) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.node.Node.(Node.java:385) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.node.Node.(Node.java:277) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Bootstrap$5.(Bootstrap.java:227) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:227) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:393) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:170) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:161) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:127) ~[elasticsearch-cli-7.9.1.jar:7.9.1]
at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-cli-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:126) ~[elasticsearch-7.9.1.jar:7.9.1]
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) ~[elasticsearch-7.9.1.jar:7.9.1]
Suppressed: java.lang.IllegalArgumentException: unknown setting [discovery.zen.ping.multicast.enabled] please check that any required plugins are installed, or check the breaking changes documentation for removed s

2 
java.lang.IllegalArgumentException: unknown setting [path.conf] please check that any required plugins are installed, or check the breaking changes documentation for removed settings
java.lang.IllegalArgumentException: unknown setting [bootstrap.mlockall] please check that any required plugins are installed, or check the breaking changes documentation for removed settings
java.lang.IllegalArgumentException: unknown setting [path.work] please check that any required plugins are installed, or check the breaking changes documentation for removed settings
java.lang.IllegalArgumentException: unknown setting [discovery.zen.ping.multicast.enabled] please check that any required plugins are installed, or check the breaking changes documentation for removed s

As it says, these settings are unknown. They used to exist in much older versions but they were all removed a long time ago.

1 Like
3

Hi David,

Thanks for your reply, Yes i found the same and i freshly installed on RHEL 7 and got struck on the mentioned issue. Could you pls help on that

4

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