aditya-pt opened a new issue #8090:
URL: https://github.com/apache/pinot/issues/8090
If we create replicaGroupPartitionConfig config as below with
`"numReplicaGroups": 1`
```
"replicaGroupPartitionConfig": {
"replicaGroupBased": true,
"numInstances": 0,
"numReplicaGroups": 1,
"numInstancesPerReplicaGroup": 2,
"numPartitions": 2,
"numInstancesPerPartition": 1
}
```
Rebalance servers fails with following error
```
{
"status": "FAILED",
"description": "Caught exception while calculating target assignment:
java.lang.IllegalStateException: Instance partitions: transcript_OFFLINE should
contain 1 replica and 1 partition for non-replica-group based assignment",
"instanceAssignment": {
"OFFLINE": {
"instancePartitionsName": "transcript_OFFLINE",
"partitionToInstancesMap": {
"0_0": [
"Server_11.22.91.152_8098"
],
"1_0": [
"Server_10.45.76.114_9098"
]
}
}
},
"segmentAssignment": null
}
```
Error stack trace in controller logs
```2022/01/28 19:09:36.894 WARN [TableRebalancer] [grizzly-http-server-2]
Caught exception while calculating target assignment for table:
transcript_OFFLINE, aborting the rebalance
java.lang.IllegalStateException: Instance partitions: transcript_OFFLINE
should contain 1 replica and 1 partition for non-replica-group based assignment
at
shaded.com.google.common.base.Preconditions.checkState(Preconditions.java:518)
~[pinot-all-0.10.0-SNAPSHOT-jar-with-dependencies.jar:0.10.0-SNAPSHOT-e7ea235a1e0e94da02b5a8b171bba0b00d0d6076]
at
org.apache.pinot.controller.helix.core.assignment.segment.SegmentAssignmentUtils.getInstancesForNonReplicaGroupBasedAssignment(SegmentAssignmentUtils.java:78)
~[pinot-all-0.10.0-SNAPSHOT-jar-with-dependencies.jar:0.10.0-SNAPSHOT-e7ea235a1e0e94da02b5a8b171bba0b00d0d6076]
at
org.apache.pinot.controller.helix.core.assignment.segment.OfflineSegmentAssignment.reassignSegments(OfflineSegmentAssignment.java:251)
~[pinot-all-0.10.0-SNAPSHOT-jar-with-dependencies.jar:0.10.0-SNAPSHOT-e7ea235a1e0e94da02b5a8b171bba0b00d0d6076]
at
org.apache.pinot.controller.helix.core.assignment.segment.OfflineSegmentAssignment.rebalanceTable(OfflineSegmentAssignment.java:215)
~[pinot-all-0.10.0-SNAPSHOT-jar-with-dependencies.jar:0.10.0-SNAPSHOT-e7ea235a1e0e94da02b5a8b171bba0b00d0d6076]
at
org.apache.pinot.controller.helix.core.rebalance.TableRebalancer.rebalance(TableRebalancer.java:248)
~[pinot-all-0.10.0-SNAPSHOT-jar-with-dependencies.jar:0.10.0-SNAPSHOT-e7ea235a1e0e94da02b5a8b171bba0b00d0d6076]
at
org.apache.pinot.controller.helix.core.PinotHelixResourceManager.rebalanceTable(PinotHelixResourceManager.java:2633)
~[pinot-all-0.10.0-SNAPSHOT-jar-with-dependencies.jar:0.10.0-SNAPSHOT-e7ea235a1e0e94da02b5a8b171bba0b00d0d6076]
at
org.apache.pinot.controller.api.resources.PinotTableRestletResource.rebalance(PinotTableRestletResource.java:590)
~[pinot-all-0.10.0-SNAPSHOT-jar-with-dependencies.jar:0.10.0-SNAPSHOT-e7ea235a1e0e94da02b5a8b171bba0b00d0d6076]
at jdk.internal.reflect.GeneratedMethodAccessor500.invoke(Unknown
Source) ~[?:?]
at
jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[?:?]
at java.lang.reflect.Method.invoke(Method.java:566) ~[?:?]
at
org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory.lambda$static$0(ResourceMethodInvocationHandlerFactory.java:52)
~[pinot-all-0.10.0-SNAPSHOT-jar-with-dependencies.jar:0.10.0-SNAPSHOT-e7ea235a1e0e94da02b5a8b171bba0b00d0d6076]
at
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:124)
[pinot-all-0.10.0-SNAPSHOT-jar-with-dependencies.jar:0.10.0-SNAPSHOT-e7ea235a1e0e94da02b5a8b171bba0b00d0d6076]
at
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:167)
[pinot-all-0.10.0-SNAPSHOT-jar-with-dependencies.jar:0.10.0-SNAPSHOT-e7ea235a1e0e94da02b5a8b171bba0b00d0d6076]
at
org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$TypeOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:219)
[pinot-all-0.10.0-SNAPSHOT-jar-with-dependencies.jar:0.10.0-SNAPSHOT-e7ea235a1e0e94da02b5a8b171bba0b00d0d6076]
at
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:79)
[pinot-all-0.10.0-SNAPSHOT-jar-with-dependencies.jar:0.10.0-SNAPSHOT-e7ea235a1e0e94da02b5a8b171bba0b00d0d6076]
at
org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:469)
[pinot-all-0.10.0-SNAPSHOT-jar-with-dependencies.jar:0.10.0-SNAPSHOT-e7ea235a1e0e94da02b5a8b171bba0b00d0d6076]
at
org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:391)
[pinot-all-0.10.0-SNAPSHOT-jar-with-dependencies.jar:0.10.0-SNAPSHOT-e7ea235a1e0e94da02b5a8b171bba0
```
If numReplicaGroups is changed to 2. Server rebalance is successful
```
"replicaGroupPartitionConfig": {
"replicaGroupBased": true,
"numInstances": 0,
"numReplicaGroups": 2,
"numInstancesPerReplicaGroup": 2,
"numPartitions": 2,
"numInstancesPerPartition": 1
}
```
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