I've created a routine that updates ES clients from 5.x to 6.x and finally 7.x
Somehow some clients cannot be updated.
Loading existing data in 6.8 fails.
Appearently some mappings are causing this.
But there are not templates applied and I cannot see any difference to the other clients, were everything works just fine.
Do I have to apply some templates to the 5.x version and retry or what?
Caused by: org.elasticsearch.index.mapper.MapperParsingException: Failed to parse mapping [datapoint]: No handler for type [string] declared on field [batchId]
java.lang.IllegalStateException: unable to upgrade the mappings for the index [[eve/xGvLV_oqSXeT3BwXNQEeyQ]]
at org.elasticsearch.cluster.metadata.MetaDataIndexUpgradeService.checkMappingsCompatibility(MetaDataIndexUpgradeService.java:205) ~[elasticsearch-6.8.8.jar:6.8.8]
at org.elasticsearch.cluster.metadata.MetaDataIndexUpgradeService.upgradeIndexMetaData(MetaDataIndexUpgradeService.java:103) ~[elasticsearch-6.8.8.jar:6.8.8]
at org.elasticsearch.gateway.GatewayMetaState.upgradeMetaData(GatewayMetaState.java:246) ~[elasticsearch-6.8.8.jar:6.8.8]
at org.elasticsearch.gateway.GatewayMetaState.<init>(GatewayMetaState.java:89) [elasticsearch-6.8.8.jar:6.8.8]
at org.elasticsearch.node.Node.<init>(Node.java:499) [elasticsearch-6.8.8.jar:6.8.8]
at org.elasticsearch.node.Node.<init>(Node.java:266) [elasticsearch-6.8.8.jar:6.8.8]
at org.elasticsearch.bootstrap.Bootstrap$5.<init>(Bootstrap.java:212) [elasticsearch-6.8.8.jar:6.8.8]
at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:212) [elasticsearch-6.8.8.jar:6.8.8]
at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:333) [elasticsearch-6.8.8.jar:6.8.8]
at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:159) [elasticsearch-6.8.8.jar:6.8.8]
at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:150) [elasticsearch-6.8.8.jar:6.8.8]
at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) [elasticsearch-6.8.8.jar:6.8.8]
at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124) [elasticsearch-cli-6.8.8.jar:6.8.8]
at org.elasticsearch.cli.Command.main(Command.java:90) [elasticsearch-cli-6.8.8.jar:6.8.8]
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:116) [elasticsearch-6.8.8.jar:6.8.8]
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:93) [elasticsearch-6.8.8.jar:6.8.8]
Caused by: org.elasticsearch.index.mapper.MapperParsingException: Failed to parse mapping [datapoint]: No handler for type [string] declared on field [batchId]
at org.elasticsearch.index.mapper.MapperService.internalMerge(MapperService.java:399) ~[elasticsearch-6.8.8.jar:6.8.8]
at org.elasticsearch.index.mapper.MapperService.internalMerge(MapperService.java:355) ~[elasticsearch-6.8.8.jar:6.8.8]
at org.elasticsearch.index.mapper.MapperService.merge(MapperService.java:334) ~[elasticsearch-6.8.8.jar:6.8.8]
at org.elasticsearch.cluster.metadata.MetaDataIndexUpgradeService.checkMappingsCompatibility(MetaDataIndexUpgradeService.java:201) ~[elasticsearch-6.8.8.jar:6.8.8] ```