WingsGo opened a new issue #3538:
URL: https://github.com/apache/incubator-doris/issues/3538
when execute Ddl `admin set frontend config` without parameters, doris will
throw a Unexpected exception, like following
```
ERROR 1064 (HY000): Unexpected exception: null
```
The error log is:
```
2020-05-09 15:46:45,247 WARN 33036 [StmtExecutor.handleDdlStmt():877] DDL
statement(admin set frontend config) process failed.
java.lang.IllegalStateException: null
at
com.google.common.base.Preconditions.checkState(Preconditions.java:134)
~[guava-15.0.jar:?]
at org.apache.doris.catalog.Catalog.setConfig(Catalog.java:6330)
~[palo-fe.jar:?]
at org.apache.doris.qe.DdlExecutor.execute(DdlExecutor.java:207)
~[palo-fe.jar:?]
at
org.apache.doris.qe.StmtExecutor.handleDdlStmt(StmtExecutor.java:868)
[palo-fe.jar:?]
at org.apache.doris.qe.StmtExecutor.execute(StmtExecutor.java:280)
[palo-fe.jar:?]
at
org.apache.doris.qe.ConnectProcessor.handleQuery(ConnectProcessor.java:182)
[palo-fe.jar:?]
at
org.apache.doris.qe.ConnectProcessor.dispatch(ConnectProcessor.java:314)
[palo-fe.jar:?]
at
org.apache.doris.qe.ConnectProcessor.processOnce(ConnectProcessor.java:476)
[palo-fe.jar:?]
at
org.apache.doris.qe.ConnectProcessor.loop(ConnectProcessor.java:486)
[palo-fe.jar:?]
at
org.apache.doris.qe.ConnectScheduler$LoopHandler.run(ConnectScheduler.java:178)
[palo-fe.jar:?]
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) [?:?]
at java.util.concurrent.FutureTask.run(FutureTask.java:264) [?:?]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
[?:?]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
[?:?]
at java.lang.Thread.run(Thread.java:834) [?:?]
```
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