Topics list

[talnicolas]

Hi,

I managed to start the application after adapting a bit the evolutions scripts for the db, successfully registered one zookeepers but nothing appears in the on the Topics page. Here's what I have in the logs:

! @6ii9ko0jf - Internal server error, for (GET) [/topics.json] ->

play.api.Application$$anon$1: Execution exception[[UnsupportedOperationException: > empty.head]] at play.api.Application$class.handleError(Application.scala:293) ~[play_2.10-2.2.1.jar:2.2.1] at play.api.DefaultApplication.handleError(Application.scala:399) [play_2.10-2.2.1.jar:2.2.1] at play.core.server.netty.PlayDefaultUpstreamHandler$$anonfun$12$$anonfun$apply$1.applyOrElse(PlayDefaultUpstreamHandler.scala:165) [play_2.10-2.2.1.jar:2.2.1] at play.core.server.netty.PlayDefaultUpstreamHandler$$anonfun$12$$anonfun$apply$1.applyOrElse(PlayDefaultUpstreamHandler.scala:162) [play_2.10-2.2.1.jar:2.2.1] at scala.runtime.AbstractPartialFunction.apply(AbstractPartialFunction.scala:33) [scala-library-2.10.2.jar:na] at scala.util.Failure$$anonfun$recover$1.apply(Try.scala:185) [scala-library-2.10.2.jar:na] Caused by: java.lang.UnsupportedOperationException: empty.head at scala.collection.immutable.Vector.head(Vector.scala:192) ~[scala-library-2.10.2.jar:na] at common.Util$$anonfun$getPartitionsLogSize$2$$anonfun$apply$16$$anonfun$5.apply(Util.scala:56) ~[classes/:na] at common.Util$$anonfun$getPartitionsLogSize$2$$anonfun$apply$16$$anonfun$5.apply(Util.scala:56) ~[classes/:na] at scala.concurrent.Future$$anonfun$map$1.apply(Future.scala:253) [scala-library-2.10.2.jar:na] at scala.concurrent.Future$$anonfun$map$1.apply(Future.scala:249) [scala-library-2.10.2.jar:na] at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:29) [scala-library-2.10.2.jar:na]

Do you know where the problem could come from?

[cjmamo]

Which version of the console are you using Nicolas?

[talnicolas]

It's the 2.0.0-SNAPSHOT version.

[cjmamo]

Do you have existing topics on Zookeeper?

[cjmamo]

The exception happens when the console tries to retrieve the partition log sizes. Try running the console with the default DB and see if the same exception occurs.

[talnicolas]

Yes I do have topics. I ran it with the default DB but keep getting errors. When I click the staging tab (I registered a stageing Zookeeper) this is what I get:

! @6ijadhk52 - Internal server error, for (GET) [/zookeepers.json/staging] ->

play.api.Application$$anon$1: Execution exception[[JsonMappingException: The object is already closed [90007-172]]] at play.api.Application$class.handleError(Application.scala:293) ~[play_2.10-2.2.1.jar:2.2.1] ... Caused by: com.fasterxml.jackson.databind.JsonMappingException: The object is already closed [90007-172] at com.fasterxml.jackson.databind.ser.DefaultSerializerProvider.serializeValue(DefaultSerializerProvider.java:129) ~[jackson-databind.jar:2.2.2] ... Caused by: org.h2.jdbc.JdbcSQLException: The object is already closed [90007-172] at org.h2.message.DbException.getJdbcSQLException(DbException.java:329) ~[h2.jar:1.3.172] ...

I am able to get my list of topics now.

(By the way, maybe the column "key" in the settings table should be renamed as it is a MySQL keyword).

[cjmamo]

Thanks for letting me know. I'll rename the key column. Regarding that last exception you're seeing, I get that when I use toSeq instead of toList in the model. It could be caused by Squeryl or H2. I'll have to investigate. In the meantime, I'll change the code to use toList.

[gayathrisowmya]

Can u let me know what was the fix to this issue. I am getting the same error now. Topics list is empty though I have topics and the error is as shown below

! @6mo1m620j - Internal server error, for (GET) [/topics.json] ->

play.api.Application$$anon$1: Execution exception[[UnsupportedOperationException: empty.head]] at play.api.Application$class.handleError(Application.scala:293) ~[play_2.10-2.2.1.jar:2.2.1] at play.api.DefaultApplication.handleError(Application.scala:399) [play_2.10-2.2.1.jar:2.2.1] at play.core.server.netty.PlayDefaultUpstreamHandler$$anonfun$12$$anonfun$apply$1.applyOrElse(PlayDefaultUpstreamHandler.scala:165) [play_2.10-2.2.1.jar:2.2.1] at play.core.server.netty.PlayDefaultUpstreamHandler$$anonfun$12$$anonfun$apply$1.applyOrElse(PlayDefaultUpstreamHandler.scala:162) [play_2.10-2.2.1.jar:2.2.1] at scala.runtime.AbstractPartialFunction.apply(AbstractPartialFunction.scala:33) [scala-library.jar:na] at scala.util.Failure$$anonfun$recover$1.apply(Try.scala:185) [scala-library.jar:na] Caused by: java.lang.UnsupportedOperationException: empty.head at scala.collection.immutable.Vector.head(Vector.scala:192) ~[scala-library.jar:na] at controllers.Topic$$anonfun$controllers$Topic$$getPartitionsLogSize$2$$anonfun$apply$26$$anonfun$26.apply(Topic.scala:239) ~[classes/:na] at controllers.Topic$$anonfun$controllers$Topic$$getPartitionsLogSize$2$$anonfun$apply$26$$anonfun$26.apply(Topic.scala:239) ~[classes/:na] at scala.concurrent.Future$$anonfun$map$1.apply(Future.scala:253) [scala-library.jar:na] at scala.concurrent.Future$$anonfun$map$1.apply(Future.scala:249) [scala-library.jar:na] at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:29) [scala-library.jar:na]