[Fix](InternalSchema) Compute nodes should not be used for Internal schema three replica (#36130) #37961
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…chema three replica (apache#36130) ## Proposed changes Issue Number: close #xxx When I add computing nodes to the cluster, a large number of warning logs will appear in the FE log, as shown below: ``` 2024-06-11 17:50:04,360 WARN (InternalSchemaInitializer|137) [InternalSchemaInitializer.modifyTblReplicaCount():146] Failed to scale replica of stats tbl:column_statistics to 3 org.apache.doris.common.AnalysisException: errCode = 2, detailMessage = errCode = 2, detailMessage = Failed to find enough backend, please check the replication num,replication tag and storage medium and avail capacity of backends. Create failed replications: replication tag: {"location" : "default"}, replication num: 3, storage medium: null at org.apache.doris.common.util.PropertyAnalyzer.analyzeReplicaAllocationImpl(PropertyAnalyzer.java:1217) ~[doris-fe.jar:1.2-SNAPSHOT] at org.apache.doris.common.util.PropertyAnalyzer.analyzeReplicaAllocation(PropertyAnalyzer.java:1136) ~[doris-fe.jar:1.2-SNAPSHOT] at org.apache.doris.catalog.Env.modifyTableReplicaAllocation(Env.java:4868) ~[doris-fe.jar:1.2-SNAPSHOT] at org.apache.doris.catalog.InternalSchemaInitializer.modifyTblReplicaCount(InternalSchemaInitializer.java:123) ~[doris-fe.jar:1.2-SNAPSHOT] at org.apache.doris.catalog.InternalSchemaInitializer.run(InternalSchemaInitializer.java:93) ~[doris-fe.jar:1.2-SNAPSHOT] ```  This is because the computing node is also considered a replica in the code, and the computing node does not have storage resources, resulting in an error message. --------- Co-authored-by: camby <104178625@qq.com>
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bp #36130