Error locating module

[dwolfson]

In experimenting with XTDB configurations, I see an exception where xtdb is not finding the module xtdb.jdbc/->tx.log. Did I misspell something? Any suggestions?

I tried the following configuration document based on what I saw on the xtdb website:

repositoryConnectionBody = {
"class": "Connection",
"connectorType": {
"class": "ConnectorType",
"connectorProviderClassName": "org.odpi.egeria.connectors.juxt.xtdb.repositoryconnector.XtdbOMRSRepositoryConnectorProvider"
},
"configurationProperties":
{
"xtdbConfig":
{
"xtdb.lucene/lucene-store":
{
"db-dir": "data/servers/xtdb/lucene"
},
"xtdb/index-store":
{
"kv-store":
{
"xtdb/module": "xtdb.rocksdb/->kv-store",
"db-dir": "data/servers/xtdb/rdb-index"
}
},
"xtdb.jdbc/connection-pool":
{
"dialect":
{
"xtdb/module": "xtdb.jdbc.psql/->dialect"
},
"db-spec":
{
"host": "jdbc:postgresql://host.rancher-desktop.internal :5442",
"dbname": "xtdb",
"user": "postgres",
"password": "im7383swg"
}
},
"xtdb/tx-log":
{
"xtdb/module": "xtdb.jdbc/->tx.log",
"connection-pool": "xtdb.jdbc/connection-pool"
},
"xtdb/document-store":
{
"xtdb/module": "xtdb.jdbc/->document-store",
"connection-pool": "xtdb.jdbc/connection-pool"
},
"poll-sleep-duration": "PT0.1S"
}
}
}

When starting Egeria with that configuration loaded, in the audit log I see:
...

Sun Apr 02 13:37:00 GMT 2023 cocoMDS2 Exception OMRS-XTDB-REPOSITORY-0008 The XTDB repository node failed to start due to clojure.lang.ExceptionInfo.
Sun Apr 02 13:37:00 GMT 2023 cocoMDS2 Exception OMRS-XTDB-REPOSITORY-0008 Supplementary information: log record id f8fdfe9d-216b-44f4-a5b3-6d6cb4d93538 clojure.lang.ExceptionInfo returned message of Error locating module and stacktrace of
clojure.lang.ExceptionInfo: Error locating module {:module xtdb.jdbc/->tx.log}
at xtdb.system.ModuleRef.prepare_dep(system.clj:113)
at xtdb.system$opts_reducer$f__6430.invoke(system.clj:131)
at xtdb.system$opts_reducer$f__6430.invoke(system.clj:130)
at clojure.lang.PersistentVector.reduce(PersistentVector.java:343)
at clojure.core$reduce.invokeStatic(core.clj:6885)
at clojure.core$reduce.invoke(core.clj:6868)
at xtdb.system$prep_system.invokeStatic(system.clj:156)
at xtdb.system$prep_system.invoke(system.clj:141)
at xtdb.system$prep_system.invokeStatic(system.clj:142)
at xtdb.system$prep_system.invoke(system.clj:141)
at xtdb.api$start_node.invokeStatic(api.clj:297)
at xtdb.api$start_node.invoke(api.clj:284)
at clojure.lang.Var.invoke(Var.java:384)
at xtdb.api.XtdbFactory.startNode(XtdbFactory.java:16)
at xtdb.api.IXtdb.startNode(IXtdb.java:45)
at org.odpi.egeria.connectors.juxt.xtdb.repositoryconnector.XtdbOMRSRepositoryConnector.start(XtdbOMRSRepositoryConnector.java:157)
at org.odpi.openmetadata.repositoryservices.localrepository.repositoryconnector.LocalOMRSRepositoryConnector.start(LocalOMRSRepositoryConnector.java:162)
at org.odpi.openmetadata.repositoryservices.admin.OMRSOperationalServices.initializeCohortMember(OMRSOperationalServices.java:428)
at org.odpi.openmetadata.adminservices.server.OMAGServerOperationalServices.activateWithSuppliedConfig(OMAGServerOperationalServices.java:324)
at org.odpi.openmetadata.adminservices.server.OMAGServerOperationalServices.activateWithStoredConfig(OMAGServerOperationalServices.java:154)
at org.odpi.openmetadata.adminservices.spring.OperationalServicesResource.activateWithStoredConfig(OperationalServicesResource.java:60)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:207)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:152)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:117)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:884)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:797)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1081)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:974)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1011)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:914)
at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:563)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:885)
at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:631)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:205)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
at org.odpi.openmetadata.http.HttpRequestHeadersFilter.doFilter(HttpRequestHeadersFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
at org.springframework.web.filter.ServerHttpObservationFilter.doFilterInternal(ServerHttpObservationFilter.java:109)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:166)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:115)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:738)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:341)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:390)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:894)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1741)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Thread.java:833)

[dwolfson]

I suspect that this was due to a malformed JSON config. Will test further.

[planetf1]

Additional dependencies are likely needed - for example in your case, for using JDBC with xtdb

The docs at https://egeria-project.org/connectors/repository/xtdb/?h=xtdb#pluggable-persistence have some details

To use in the helm charts, you would need to locate a download source for each library, and add to the 'extralibs' configuration.

We should also consider whether to build

• the xtdb connector
• the associated docker image

with additional dependencies, to suit a broader range of configuration options -- JDBC perhaps being a good example

To do so , the easiest would be to add as gradle dependencies, as this would then be effective for both.