Starting elasticsearch: OpenJDK 64-Bit Server VM warning: If the number of processors is expected to increase from one, then you should configure the number of parallel GC threads appropriately using -XX:ParallelGCThreads=N
Exception in thread "main" 2018-04-12 09:00:58,596 main ERROR No log4j2 configuration file found. Using default configuration: logging only errors to the console. Set system property 'log4j2.debug' to show Log4j2 internal initialization logging.
SettingsException[Failed to load settings from [elasticsearch.yml]]; nested: MarkedYAMLException[while scanning an alias
 in 'reader', line 90, column 27:
    action.auto_create_index: *
                              ^
expected alphabetic or numeric character, but found

 in 'reader', line 90, column 28:
    *
     ^

 at [Source: sun.nio.ch.ChannelInputStream@5bda8e08; line: 90, column: 25]]; nested: ScannerException[while scanning an alias
 in 'reader', line 90, column 27:
    action.auto_create_index: *
                              ^
expected alphabetic or numeric character, but found

 in 'reader', line 90, column 28:
    *
     ^
];
        at org.elasticsearch.common.settings.Settings$Builder.loadFromStream(Settings.java:1187)
        at org.elasticsearch.common.settings.Settings$Builder.loadFromPath(Settings.java:1162)
        at org.elasticsearch.node.InternalSettingsPreparer.prepareEnvironment(InternalSettingsPreparer.java:99)
        at org.elasticsearch.cli.EnvironmentAwareCommand.createEnv(EnvironmentAwareCommand.java:95)
        at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86)
        at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124)
        at org.elasticsearch.cli.Command.main(Command.java:90)
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92)
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:85)
Caused by: com.fasterxml.jackson.dataformat.yaml.snakeyaml.error.MarkedYAMLException: while scanning an alias
 in 'reader', line 90, column 27:
    action.auto_create_index: *
                              ^
expected alphabetic or numeric character, but found

 in 'reader', line 90, column 28:
    *
     ^

 at [Source: sun.nio.ch.ChannelInputStream@5bda8e08; line: 90, column: 25]
        at com.fasterxml.jackson.dataformat.yaml.snakeyaml.error.MarkedYAMLException.from(MarkedYAMLException.java:27)
        at com.fasterxml.jackson.dataformat.yaml.YAMLParser.nextToken(YAMLParser.java:343)
        at org.elasticsearch.common.xcontent.json.JsonXContentParser.nextToken(JsonXContentParser.java:52)
        at org.elasticsearch.common.settings.Settings.fromXContent(Settings.java:698)
        at org.elasticsearch.common.settings.Settings.fromXContent(Settings.java:673)
        at org.elasticsearch.common.settings.Settings.access$500(Settings.java:82)
        at org.elasticsearch.common.settings.Settings$Builder.loadFromStream(Settings.java:1183)
        ... 8 more
Caused by: while scanning an alias
 in 'reader', line 90, column 27:
    action.auto_create_index: *
                              ^
expected alphabetic or numeric character, but found

 in 'reader', line 90, column 28:
    *
     ^

        at org.yaml.snakeyaml.scanner.ScannerImpl.scanAnchor(ScannerImpl.java:1439)
        at org.yaml.snakeyaml.scanner.ScannerImpl.fetchAlias(ScannerImpl.java:918)
        at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:366)
        at org.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:226)
        at org.yaml.snakeyaml.parser.ParserImpl$ParseBlockMappingValue.produce(ParserImpl.java:585)
        at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:157)
        at org.yaml.snakeyaml.parser.ParserImpl.getEvent(ParserImpl.java:167)
        at com.fasterxml.jackson.dataformat.yaml.YAMLParser.nextToken(YAMLParser.java:340)
        ... 13 more
                                                           [FAILED]