tanvipenumudy opened a new pull request, #4978:
URL: https://github.com/apache/ozone/pull/4978
## What changes were proposed in this pull request?
The following call stack was noticed while testing out a new command. If the
server sees an unknown request, it should reject it instead of raising an
exception and crashing.
```
java.lang.IllegalStateException: Unrecognized write command type
requestEchoRPC
at
org.apache.hadoop.ozone.om.ratis.utils.OzoneManagerRatisUtils.createClientRequest(OzoneManagerRatisUtils.java:308)
at
org.apache.hadoop.ozone.protocolPB.OzoneManagerRequestHandler.handleWriteRequest(OzoneManagerRequestHandler.java:335)
at
org.apache.hadoop.ozone.om.ratis.OzoneManagerStateMachine.runCommand(OzoneManagerStateMachine.java:533)
at
org.apache.hadoop.ozone.om.ratis.OzoneManagerStateMachine.lambda$1(OzoneManagerStateMachine.java:324)
at
java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1700)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
```
From OzoneManagerRatisUtils.java
```
default:
throw new IllegalStateException("Unrecognized write command " +
"type request" + cmdType);
}
```
## What is the link to the Apache JIRA
https://issues.apache.org/jira/browse/HDDS-8856
## How was this patch tested?
(Please explain how this patch was tested. Ex: unit tests, manual tests)
(If this patch involves UI changes, please attach a screen-shot; otherwise,
remove this)
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