ES 5.2 node validation exception bootstrap checks failed - no other error

Elastic Stack Elasticsearch
4

It's there, it's higher in the logs.

You need to check higher in the logs. You'll see something like:

[2017-02-01T10:46:10,639][WARN ][o.e.b.JNANatives         ] unable to install syscall filter:
java.lang.UnsupportedOperationException: seccomp unavailable: CONFIG_SECCOMP not compiled into kernel, CONFIG_SECCOMP and CONFIG_SECCOMP_FILTER are needed
        at org.elasticsearch.bootstrap.SystemCallFilter.linuxImpl(SystemCallFilter.java:363) ~[elasticsearch-5.2.0.jar:5.2.0]
        at org.elasticsearch.bootstrap.SystemCallFilter.init(SystemCallFilter.java:638) ~[elasticsearch-5.2.0.jar:5.2.0]
        at org.elasticsearch.bootstrap.JNANatives.tryInstallSystemCallFilter(JNANatives.java:215) [elasticsearch-5.2.0.jar:5.2.0]
        at org.elasticsearch.bootstrap.Natives.tryInstallSystemCallFilter(Natives.java:99) [elasticsearch-5.2.0.jar:5.2.0]
        at org.elasticsearch.bootstrap.Bootstrap.initializeNatives(Bootstrap.java:110) [elasticsearch-5.2.0.jar:5.2.0]
        at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:203) [elasticsearch-5.2.0.jar:5.2.0]
        at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:333) [elasticsearch-5.2.0.jar:5.2.0]
        at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:121) [elasticsearch-5.2.0.jar:5.2.0]
        at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:112) [elasticsearch-5.2.0.jar:5.2.0]
        at org.elasticsearch.cli.SettingCommand.execute(SettingCommand.java:54) [elasticsearch-5.2.0.jar:5.2.0]
        at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:122) [elasticsearch-5.2.0.jar:5.2.0]
        at org.elasticsearch.cli.Command.main(Command.java:88) [elasticsearch-5.2.0.jar:5.2.0]
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:89) [elasticsearch-5.2.0.jar:5.2.0]
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:82) [elasticsearch-5.2.0.jar:5.2.0]

This is telling you why the system call filter failed to install. The docs that @dadoonet pointed you to explain the purpose of this check. You can either address whatever log message you have similar to the above, or just skip the system call filter check by setting bootstrap.system_call_filter to false.

I want to fix this. Which link in the config file does not work?

I want to fix this. Which settings in the config file are deprecated?

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