vineethvp opened a new issue, #12961:
URL: https://github.com/apache/pinot/issues/12961
Intermittently getting below error while running certain queries. Segments
seems to be healthy and cluster is also running fine.
Mostly observed this with join queries buy sometime simple select query also
failing once this error occurs. Nothing could be traced in the logs directing
to a root cause. Please suggest what might be causing this error?
```
Error Code: 200
QueryExecutionError:
Unable to execute query plan for request: 1489691015000000078 on server:
pinot-server-1.pinot-server-headless.pinot-quickstart.svc.cluster.local@{38061,44933},
ERROR: java.util.concurrent.ExecutionException: java.lang.RuntimeException:
Caught exception while deserializing stage plan for request:
1489691015000000078, stage: 1
at
java.base/java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:395)
at
java.base/java.util.concurrent.CompletableFuture.get(CompletableFuture.java:2028)
at
org.apache.pinot.query.service.server.QueryServer.submit(QueryServer.java:156)
at
org.apache.pinot.common.proto.PinotQueryWorkerGrpc$MethodHandlers.invoke(PinotQueryWorkerGrpc.java:284)
...
Caused by: java.lang.RuntimeException: Caught exception while deserializing
stage plan for request: 1489691015000000078, stage: 1
at
org.apache.pinot.query.service.server.QueryServer.lambda$submit$1(QueryServer.java:126)
at
java.base/java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1736)
... 3 more
Caused by: java.lang.IllegalStateException: Unable to create Object of type:
org.apache.calcite.rel.logical.PinotRelExchangeType
at
org.apache.pinot.query.planner.serde.ProtoSerializationUtils.constructObject(ProtoSerializationUtils.java:252)
at
org.apache.pinot.query.planner.serde.ProtoSerializationUtils.constructMemberVariable(ProtoSerializationUtils.java:194)
at
org.apache.pinot.query.planner.serde.ProtoSerializationUtils.setObjectFieldToObject(ProtoSerializationUtils.java:59)
at
org.apache.pinot.query.planner.plannode.AbstractPlanNode.fromObjectField(AbstractPlanNode.java:81)
...
Caused by: java.lang.ClassNotFoundException:
org.apache.calcite.rel.logical.PinotRelExchangeType
at
java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
at
java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:527)
at java.base/java.lang.Class.forName0(Native Method)
org.apache.pinot.query.service.dispatch.QueryDispatcher.submit(QueryDispatcher.java:206)
org.apache.pinot.query.service.dispatch.QueryDispatcher.submitAndReduce(QueryDispatcher.java:97)
org.apache.pinot.broker.requesthandler.MultiStageBrokerRequestHandler.handleRequest(MultiStageBrokerRequestHandler.java:199)
org.apache.pinot.broker.requesthandler.BaseBrokerRequestHandler.handleRequest(BaseBrokerRequestHandler.java:290)
```
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