sandynz commented on PR #19949:
URL: https://github.com/apache/shardingsphere/pull/19949#issuecomment-1209147407

   From GitHub scaling-it-test log, I didn't find `assertThat(resources.size(), 
is(5));` error of `addTargetResource`. But there's exception:
   ```
   [INFO ] 2022-08-08 15:02:26.094 [docker-java-stream-512339527] 
:Scaling-Proxy - STDOUT: java.lang.NullPointerException: null
   [INFO ] 2022-08-08 15:02:26.095 [docker-java-stream-512339527] 
:Scaling-Proxy - STDOUT:      at 
org.apache.shardingsphere.scaling.distsql.handler.query.ShowScalingJobStatusQueryResultSet.lambda$init$0(ShowScalingJobStatusQueryResultSet.java:51)
   [INFO ] 2022-08-08 15:02:26.095 [docker-java-stream-512339527] 
:Scaling-Proxy - STDOUT:      at 
java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
   [INFO ] 2022-08-08 15:02:26.095 [docker-java-stream-512339527] 
:Scaling-Proxy - STDOUT:      at 
java.util.Iterator.forEachRemaining(Iterator.java:116)
   [INFO ] 2022-08-08 15:02:26.095 [docker-java-stream-512339527] 
:Scaling-Proxy - STDOUT:      at 
java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
   [INFO ] 2022-08-08 15:02:26.095 [docker-java-stream-512339527] 
:Scaling-Proxy - STDOUT:      at 
java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482)
   [INFO ] 2022-08-08 15:02:26.095 [docker-java-stream-512339527] 
:Scaling-Proxy - STDOUT:      at 
java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472)
   [INFO ] 2022-08-08 15:02:26.095 [docker-java-stream-512339527] 
:Scaling-Proxy - STDOUT:      at 
java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
   [INFO ] 2022-08-08 15:02:26.095 [docker-java-stream-512339527] 
:Scaling-Proxy - STDOUT:      at 
java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
   [INFO ] 2022-08-08 15:02:26.095 [docker-java-stream-512339527] 
:Scaling-Proxy - STDOUT:      at 
java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
   [INFO ] 2022-08-08 15:02:26.095 [docker-java-stream-512339527] 
:Scaling-Proxy - STDOUT:      at 
org.apache.shardingsphere.scaling.distsql.handler.query.ShowScalingJobStatusQueryResultSet.init(ShowScalingJobStatusQueryResultSet.java:65)
   [INFO ] 2022-08-08 15:02:26.095 [docker-java-stream-512339527] 
:Scaling-Proxy - STDOUT:      at 
org.apache.shardingsphere.proxy.backend.handler.distsql.ral.scaling.query.QueryableScalingRALBackendHandler.execute(QueryableScalingRALBackendHandler.java:50)
   [INFO ] 2022-08-08 15:02:26.095 [docker-java-stream-512339527] 
:Scaling-Proxy - STDOUT:      at 
org.apache.shardingsphere.proxy.backend.handler.distsql.ral.scaling.query.QueryableScalingRALBackendHandler.execute(QueryableScalingRALBackendHandler.java:39)
   [INFO ] 2022-08-08 15:02:26.095 [docker-java-stream-512339527] 
:Scaling-Proxy - STDOUT:      at 
org.apache.shardingsphere.proxy.backend.handler.DatabaseRequiredBackendHandler.execute(DatabaseRequiredBackendHandler.java:51)
   [INFO ] 2022-08-08 15:02:26.095 [docker-java-stream-512339527] 
:Scaling-Proxy - STDOUT:      at 
org.apache.shardingsphere.proxy.frontend.mysql.command.query.text.query.MySQLComQueryPacketExecutor.execute(MySQLComQueryPacketExecutor.java:94)
   [INFO ] 2022-08-08 15:02:26.095 [docker-java-stream-512339527] 
:Scaling-Proxy - STDOUT:      at 
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:112)
   [INFO ] 2022-08-08 15:02:26.095 [docker-java-stream-512339527] 
:Scaling-Proxy - STDOUT:      at 
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:78)
   [INFO ] 2022-08-08 15:02:26.095 [docker-java-stream-512339527] 
:Scaling-Proxy - STDOUT:      at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
   [INFO ] 2022-08-08 15:02:26.095 [docker-java-stream-512339527] 
:Scaling-Proxy - STDOUT:      at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   [INFO ] 2022-08-08 15:02:26.095 [docker-java-stream-512339527] 
:Scaling-Proxy - STDOUT:      at java.lang.Thread.run(Thread.java:748)
   Error:  2022-08-08 15:02:27.437 [main] o.a.s.i.d.p.cases.base.BaseITCase - 
data access error
   org.springframework.jdbc.UncategorizedSQLException: StatementCallback; 
uncategorized SQLException for SQL [SHOW SCALING STATUS 
0130317c30317c3054317c7368617264696e675f6462]; SQL state [C1997]; error code 
[1997]; Runtime exception: [null]; nested exception is java.sql.SQLException: 
Runtime exception: [null]
   ```
   Did you reproduce it on local?
   


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