huangkaiyan10 opened a new issue #4136: I can shorten elasticsearch index name URL: https://github.com/apache/skywalking/issues/4136 I wanted to use elassandra's elasticsearch feature on this project and integrate skywalking link tracking to discover this problem.I used the skywalking version is apache-skywalking-apm-6.5.0. [cassandra] Both keyspace and table name should be comprised of only alphanumeric characters, cannot be empty and are limited in size to 48 characters (that limit exists mostly to avoid filenames (which may include the keyspace and table name) to go over the limits of certain file systems). By default, keyspace and table names are case insensitive (myTable is equivalent to mytable) but case sensitivity can be forced by using double-quotes ("myTable" is different from mytable). Below is the error log 2019-12-26 16:38:15,547 - org.apache.skywalking.oap.server.starter.OAPServerStartUp - 55 [main] ERROR [] - Elasticsearch exception [type=invalid_request_exception, reason=Keyspace names shouldn't be more than 48 characters long (got "instance_clr_available_completion_port_threads_hour_20191226")] org.elasticsearch.ElasticsearchStatusException: Elasticsearch exception [type=invalid_request_exception, reason=Keyspace names shouldn't be more than 48 characters long (got "instance_clr_available_completion_port_threads_hour_20191226")] at org.elasticsearch.rest.BytesRestResponse.errorFromXContent(BytesRestResponse.java:177) ~[elasticsearch-6.3.2.jar:6.3.2] at org.elasticsearch.client.RestHighLevelClient.parseEntity(RestHighLevelClient.java:653) ~[elasticsearch-rest-high-level-client-6.3.2.jar:6.3.2] at org.elasticsearch.client.RestHighLevelClient.parseResponseException(RestHighLevelClient.java:628) ~[elasticsearch-rest-high-level-client-6.3.2.jar:6.3.2] at org.elasticsearch.client.RestHighLevelClient.performRequest(RestHighLevelClient.java:535) ~[elasticsearch-rest-high-level-client-6.3.2.jar:6.3.2] at org.elasticsearch.client.RestHighLevelClient.performRequestAndParseEntity(RestHighLevelClient.java:508) ~[elasticsearch-rest-high-level-client-6.3.2.jar:6.3.2] at org.elasticsearch.client.IndicesClient.create(IndicesClient.java:99) ~[elasticsearch-rest-high-level-client-6.3.2.jar:6.3.2] at org.apache.skywalking.oap.server.library.client.elasticsearch.ElasticSearchClient.createIndex(ElasticSearchClient.java:168) ~[library-client-6.5.0.jar:6.5.0] at org.apache.skywalking.oap.server.storage.plugin.elasticsearch.base.StorageEsInstaller.createTable(StorageEsInstaller.java:82) ~[storage-elasticsearch-plugin-6.5.0.jar:6.5.0] at org.apache.skywalking.oap.server.core.storage.model.ModelInstaller.install(ModelInstaller.java:61) ~[server-core-6.5.0.jar:6.5.0] at org.apache.skywalking.oap.server.storage.plugin.elasticsearch.StorageModuleElasticsearchProvider.start(StorageModuleElasticsearchProvider.java:136) ~[storage-elasticsearch-plugin-6.5.0.jar:6.5.0] at org.apache.skywalking.oap.server.library.module.BootstrapFlow.start(BootstrapFlow.java:61) ~[library-module-6.5.0.jar:6.5.0] at org.apache.skywalking.oap.server.library.module.ModuleManager.init(ModuleManager.java:67) ~[library-module-6.5.0.jar:6.5.0] at org.apache.skywalking.oap.server.starter.OAPServerStartUp.main(OAPServerStartUp.java:43) [server-starter-6.5.0.jar:6.5.0]
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