Florian Schmidt created FLINK-9356:
--------------------------------------
Summary: Improve error message for when queryable state not ready
/ reachable
Key: FLINK-9356
URL: https://issues.apache.org/jira/browse/FLINK-9356
Project: Flink
Issue Type: Improvement
Components: Queryable State
Affects Versions: 1.5.0
Reporter: Florian Schmidt
When executing the queryable state client and either
a. The queryable state is not ready
b. There is no job with the specified job-id
one sees the following exception:
{code:java}
Exception in thread "main" java.util.concurrent.ExecutionException:
java.lang.RuntimeException: Failed request 0.
Caused by:
org.apache.flink.queryablestate.exceptions.UnknownLocationException: Could not
contact the state location oracle to retrieve the state location.
at
org.apache.flink.queryablestate.client.proxy.KvStateClientProxyHandler.getKvStateLookupInfo(KvStateClientProxyHandler.java:228)
at
org.apache.flink.queryablestate.client.proxy.KvStateClientProxyHandler.getState(KvStateClientProxyHandler.java:162)
at
org.apache.flink.queryablestate.client.proxy.KvStateClientProxyHandler.executeActionAsync(KvStateClientProxyHandler.java:129)
at
org.apache.flink.queryablestate.client.proxy.KvStateClientProxyHandler.handleRequest(KvStateClientProxyHandler.java:119)
at
org.apache.flink.queryablestate.client.proxy.KvStateClientProxyHandler.handleRequest(KvStateClientProxyHandler.java:63)
at
org.apache.flink.queryablestate.network.AbstractServerHandler$AsyncRequestTask.run(AbstractServerHandler.java:236)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:748)
at java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357)
at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1895)
at
org.apache.flink.streaming.tests.queryablestate.QsStateClient.getMapState(QsStateClient.java:122)
at
org.apache.flink.streaming.tests.queryablestate.QsStateClient.main(QsStateClient.java:75)
Caused by: java.lang.RuntimeException: Failed request 0.
Caused by:
org.apache.flink.queryablestate.exceptions.UnknownLocationException: Could not
contact the state location oracle to retrieve the state location.
at
org.apache.flink.queryablestate.client.proxy.KvStateClientProxyHandler.getKvStateLookupInfo(KvStateClientProxyHandler.java:228)
at
org.apache.flink.queryablestate.client.proxy.KvStateClientProxyHandler.getState(KvStateClientProxyHandler.java:162)
at
org.apache.flink.queryablestate.client.proxy.KvStateClientProxyHandler.executeActionAsync(KvStateClientProxyHandler.java:129)
at
org.apache.flink.queryablestate.client.proxy.KvStateClientProxyHandler.handleRequest(KvStateClientProxyHandler.java:119)
at
org.apache.flink.queryablestate.client.proxy.KvStateClientProxyHandler.handleRequest(KvStateClientProxyHandler.java:63)
at
org.apache.flink.queryablestate.network.AbstractServerHandler$AsyncRequestTask.run(AbstractServerHandler.java:236)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:748)
at
org.apache.flink.queryablestate.network.AbstractServerHandler$AsyncRequestTask.lambda$run$0(AbstractServerHandler.java:273)
at
java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:760)
at
java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:736)
at
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)
at
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1977)
at
org.apache.flink.queryablestate.client.proxy.KvStateClientProxyHandler.lambda$executeActionAsync$0(KvStateClientProxyHandler.java:146)
at
java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:760)
at
java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:736)
at
java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:442)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:748)
{code}
This could be improved to display a context-dependant error message, so one can
more easily identify why the connection to queryable state is not possible at
the time
cc [~kkl0u]
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
