Support of Amazon timestream

1
Hi Experts,   For scaling purposes, my app needs to store time-series data at large. I see Marketplace services with an InfluxDB service that can be used over a REST API. Is there a plan to support reading from Timestream? Go Make It
asked
2 answers
1

Hi Marco,

 

Thank you for the idea! It’s not yet on our roadmap but I would love to learn more about your use case.

 

A Quick lookup in the documentation did tell me that Amazon Timestream supports the JDBC protocol and a subset of SQL statements:

https://docs.aws.amazon.com/timestream/latest/developerguide/supported-sql-constructs.html

https://docs.aws.amazon.com/timestream/latest/developerguide/JDBC.html

 

This could allow you to connect to Timestream through the Mendix Database Connector (https://marketplace.mendix.com/link/component/2888)

 

Let me know if this helps you, otherwise feel free to reach out to me via freek.brinkhuis@mendix.com

answered
0

Hi, 

 

Is there any plan to provide a detailed tutorial on how to connect to Timestream ?

Following the database connector documentation I’m supposed to load the jdbc jar into the userlib directory of my application but several jar’s are available. Which one should be imported ? 

 

I’ve tried all the ones available but always with the following error: 

com.mendix.webui.WebUIException: Exception while executing runtime operation
	at com.mendix.webui.actions.client.RuntimeOperationAction.$anonfun$apply$1(RuntimeOperationAction.scala:56)

Caused by: com.mendix.modules.microflowengine.MicroflowException: com.mendix.systemwideinterfaces.MendixRuntimeException: java.sql.SQLFeatureNotSupportedException: Driver is read-only.
	at MyFirstModule.test (JavaAction : 'Execute query')

Advanced stacktrace:
	at com.mendix.modules.microflowengine.MicroflowUtil.processException(MicroflowUtil.java:83)

Caused by: com.mendix.core.CoreRuntimeException: com.mendix.systemwideinterfaces.MendixRuntimeException: java.sql.SQLFeatureNotSupportedException: Driver is read-only.
	at com.mendix.basis.actionmanagement.ActionManager.executeSync(ActionManager.scala:108)

Caused by: com.mendix.systemwideinterfaces.MendixRuntimeException: java.sql.SQLFeatureNotSupportedException: Driver is read-only.
	at com.mendix.util.classloading.Runner$.withContextClassLoader(Runner.scala:23)

Caused by: java.sql.SQLFeatureNotSupportedException: Driver is read-only.
	at software.amazon.timestream.jdbc.Error.createSQLFeatureNotSupportedException(Error.java:226)
	at software.amazon.timestream.jdbc.TimestreamConnection.setReadOnly(TimestreamConnection.java:493)
	at com.zaxxer.hikari.pool.PoolBase.setupConnection(PoolBase.java:404)
	at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:364)
	at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:201)
	at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:470)
	at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:561)
	at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:100)
	at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112)
	at databaseconnector.impl.JdbcConnectionManager.getConnection(JdbcConnectionManager.java:60)
	at databaseconnector.impl.JdbcConnector.executeQuery(JdbcConnector.java:61)
	at databaseconnector.actions.ExecuteQuery.executeAction(ExecuteQuery.java:73)
	at databaseconnector.actions.ExecuteQuery.executeAction(ExecuteQuery.java:50)
	at com.mendix.systemwideinterfaces.core.UserAction.execute(UserAction.java:58)
	at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.doCall(CoreActionHandlerImpl.scala:71)
	at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.call(CoreActionHandlerImpl.scala:48)
	at com.mendix.core.actionmanagement.internal.InternalCoreAction.call(InternalCoreAction.java:56)
	at com.mendix.basis.actionmanagement.ActionManager.$anonfun$executeSync$2(ActionManager.scala:104)
	at com.mendix.util.classloading.Runner$.withContextClassLoader(Runner.scala:20)
	at com.mendix.basis.actionmanagement.ActionManager.executeSync(ActionManager.scala:103)
	at com.mendix.basis.actionmanagement.UserActionCallBuilderImpl.execute(UserActionCallBuilderImpl.scala:57)
	at com.mendix.modules.microflowengine.actions.actioncall.ForegroundJavaAction.doExecute(ForegroundJavaAction.scala:35)
	at com.mendix.modules.microflowengine.actions.actioncall.ForegroundJavaAction.doExecute(ForegroundJavaAction.scala:11)
	at com.mendix.modules.microflowengine.actions.actioncall.JavaAction.execute(JavaAction.scala:38)
	at com.mendix.modules.microflowengine.microflow.impl.MicroflowObject.$anonfun$execute$1(MicroflowObject.scala:32)
	at scala.Option.flatMap(Option.scala:283)
	at com.mendix.modules.microflowengine.microflow.impl.MicroflowObject.execute(MicroflowObject.scala:29)
	at com.mendix.modules.microflowengine.microflow.impl.MicroflowImpl.$anonfun$executeAfterBreakingIfNecessary$2(MicroflowImpl.scala:167)
	at scala.Option.flatMap(Option.scala:283)
	at com.mendix.modules.microflowengine.microflow.impl.MicroflowImpl.executeAfterBreakingIfNecessary(MicroflowImpl.scala:167)
	at com.mendix.modules.microflowengine.microflow.impl.MicroflowImpl.executeAction(MicroflowImpl.scala:114)
	at com.mendix.systemwideinterfaces.core.UserAction.execute(UserAction.java:58)
	at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.doCall(CoreActionHandlerImpl.scala:71)
	at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.call(CoreActionHandlerImpl.scala:48)
	at com.mendix.core.actionmanagement.internal.InternalCoreAction.call(InternalCoreAction.java:56)
	at com.mendix.basis.actionmanagement.ActionManager.$anonfun$executeSync$2(ActionManager.scala:104)
	at com.mendix.util.classloading.Runner$.withContextClassLoader(Runner.scala:20)
	at com.mendix.basis.actionmanagement.ActionManager.executeSync(ActionManager.scala:103)
	at com.mendix.basis.actionmanagement.MicroflowCallBuilderImpl.execute(MicroflowCallBuilderImpl.scala:62)
	at com.mendix.webui.actions.client.MicroflowRuntimeOperationExecutor.runMicroflow(MicroflowRuntimeOperationExecutor.scala:129)
	at com.mendix.webui.actions.client.MicroflowRuntimeOperationExecutor.$anonfun$apply$4(MicroflowRuntimeOperationExecutor.scala:60)
	at com.mendix.webui.actions.client.RegularClientAction$Helpers$.$anonfun$liftEither$1(RegularClientAction.scala:30)
	at com.mendix.webui.actions.client.RegularClientAction$Helpers$StateHandler.$anonfun$apply$4(RegularClientAction.scala:56)
	at com.mendix.webui.requesthandling.helpers.StateHandling.withState(StateHandling.scala:45)
	at com.mendix.webui.requesthandling.helpers.StateHandling.withState$(StateHandling.scala:42)
	at com.mendix.webui.actions.client.RegularClientAction$Helpers$StateHandler.withState(RegularClientAction.scala:46)
	at com.mendix.webui.actions.client.RegularClientAction$Helpers$StateHandler.apply(RegularClientAction.scala:54)
	at com.mendix.webui.actions.client.RegularClientAction$Helpers$StateHandler.apply(RegularClientAction.scala:46)
	at com.mendix.webui.actions.client.MicroflowRuntimeOperationExecutor.apply(MicroflowRuntimeOperationExecutor.scala:61)
	at com.mendix.webui.actions.client.RuntimeOperationAction.$anonfun$apply$1(RuntimeOperationAction.scala:51)
	at scala.util.Either.flatMap(Either.scala:352)
	at com.mendix.webui.actions.client.RuntimeOperationAction.apply(RuntimeOperationAction.scala:38)
	at com.mendix.webui.actions.client.RuntimeOperationAction.apply(RuntimeOperationAction.scala:29)
	at com.mendix.webui.actions.client.RegularClientAction$Helpers$.$anonfun$liftEither$1(RegularClientAction.scala:30)
	at com.mendix.webui.actions.client.RegularClientAction.$anonfun$execute$3(RegularClientAction.scala:120)
	at scala.util.Try$.apply(Try.scala:210)
	at com.mendix.webui.actions.client.RegularClientAction.$anonfun$execute$2(RegularClientAction.scala:120)
	at com.mendix.webui.actions.client.RegularClientAction.$anonfun$execute$2$adapted(RegularClientAction.scala:118)
	at com.mendix.webui.requesthandling.helpers.ContextHandling.$anonfun$inContext$7(ContextHandling.scala:58)
	at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.scala:18)
	at com.mendix.basis.actionmanagement.ActionMonitoring$.$anonfun$monitor$1(ActionMonitoring.scala:49)
	at com.mendix.util.classloading.Runner$.withContextClassLoader(Runner.scala:20)
	at com.mendix.basis.actionmanagement.ActionMonitoring$.monitor(ActionMonitoring.scala:49)
	at com.mendix.webui.requesthandling.helpers.ContextHandling.inContext(ContextHandling.scala:58)
	at com.mendix.webui.requesthandling.helpers.ContextHandling.inContext$(ContextHandling.scala:32)
	at com.mendix.webui.actions.client.RegularClientAction.inContext(RegularClientAction.scala:94)
	at com.mendix.webui.requesthandling.helpers.ContextHandling.inContext(ContextHandling.scala:29)
	at com.mendix.webui.requesthandling.helpers.ContextHandling.inContext$(ContextHandling.scala:21)
	at com.mendix.webui.actions.client.RegularClientAction.inContext(RegularClientAction.scala:94)
	at com.mendix.webui.actions.client.RegularClientAction.$anonfun$execute$1(RegularClientAction.scala:118)
	at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.scala:18)
	at com.mendix.webui.requesthandling.helpers.ProfileHandling.profileRequest(ProfileHandling.scala:14)
	at com.mendix.webui.requesthandling.helpers.ProfileHandling.profileRequest$(ProfileHandling.scala:10)
	at com.mendix.webui.actions.client.RegularClientAction.profileRequest(RegularClientAction.scala:94)
	at com.mendix.webui.actions.client.RegularClientAction.execute(RegularClientAction.scala:115)
	at com.mendix.webui.requesthandling.ClientRequestHandler.handleAction(ClientRequestHandler.scala:106)
	at com.mendix.webui.requesthandling.ClientRequestHandler.processRequest(ClientRequestHandler.scala:79)
	at com.mendix.externalinterface.connector.RequestHandler.doProcessRequest(RequestHandler.java:37)
	at com.mendix.external.connector.MxRuntimeConnector.$anonfun$processRequest$1(MxRuntimeConnector.scala:54)
	at com.mendix.external.connector.MxRuntimeConnector.$anonfun$processRequest$1$adapted(MxRuntimeConnector.scala:54)
	at com.mendix.util.classloading.Runner$.withContextClassLoader(Runner.scala:20)
	at com.mendix.external.connector.MxRuntimeConnector.processRequest(MxRuntimeConnector.scala:54)
	at com.mendix.basis.impl.MxRuntimeImpl.processRequest(MxRuntimeImpl.scala:221)
	at com.mendix.m2ee.appcontainer.server.handler.RuntimeServlet.service(RuntimeServlet.scala:40)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:750)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:764)
	at org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1665)
	at org.eclipse.jetty.websocket.servlet.WebSocketUpgradeFilter.doFilter(WebSocketUpgradeFilter.java:170)
	at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
	at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:527)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1571)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1383)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:484)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1544)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1305)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
	at org.eclipse.jetty.server.Server.handle(Server.java:563)
	at org.eclipse.jetty.server.HttpChannel.lambda$handle$0(HttpChannel.java:505)
	at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:762)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:497)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:282)
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:314)
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:100)
	at org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:53)
	at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:421)
	at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:390)
	at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:277)
	at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.lambda$new$0(AdaptiveExecutionStrategy.java:139)
	at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:411)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:933)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1077)
	at java.base/java.lang.Thread.run(Thread.java:834)

 

Any idea on what the problem could be ? 

 

Many thanks, 

 

Arnaud

answered