ivandika3 commented on PR #1362:
URL: https://github.com/apache/ratis/pull/1362#issuecomment-4167892726
FYI, I found the following test failures on `testFollowerLinearizableRead`
and `testFollowerLinearizableReadParallel` when disabling dummy request (since
dummy request is a watch request that seems to trigger failover to the leader).
```
java.util.NoSuchElementException
at
java.util.concurrent.ConcurrentSkipListMap.firstKey(ConcurrentSkipListMap.java:2053)
at
org.apache.ratis.util.SlidingWindow$RequestMap.firstSeqNum(SlidingWindow.java:108)
at
org.apache.ratis.util.SlidingWindow$Client.isFirst(SlidingWindow.java:413)
at
org.apache.ratis.client.impl.OrderedAsync.sendRequestWithRetry(OrderedAsync.java:201)
at
org.apache.ratis.util.SlidingWindow$Client.sendOrDelayRequest(SlidingWindow.java:315)
at
org.apache.ratis.util.SlidingWindow$Client.submitNewRequest(SlidingWindow.java:294)
at org.apache.ratis.client.impl.OrderedAsync.send(OrderedAsync.java:172)
at org.apache.ratis.client.impl.AsyncImpl.send(AsyncImpl.java:41)
at
org.apache.ratis.client.impl.AsyncImpl.sendReadOnly(AsyncImpl.java:51)
at
org.apache.ratis.LinearizableReadTests.runTestFollowerLinearizableRead(LinearizableReadTests.java:148)
at
org.apache.ratis.LinearizableReadTests.lambda$runWithNewCluster$0(LinearizableReadTests.java:80)
at
org.apache.ratis.server.impl.MiniRaftCluster$Factory$Get.runWithNewCluster(MiniRaftCluster.java:143)
at
org.apache.ratis.LinearizableReadTests.runWithNewCluster(LinearizableReadTests.java:78)
at
org.apache.ratis.LinearizableReadTests.testFollowerLinearizableRead(LinearizableReadTests.java:106)
at java.lang.reflect.Method.invoke(Method.java:498)
at java.util.ArrayList.forEach(ArrayList.java:1259)
at java.util.ArrayList.forEach(ArrayList.java:1259)
```
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