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https://issues.apache.org/jira/browse/RATIS-141?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16258714#comment-16258714
 ] 

Tsz Wo Nicholas Sze commented on RATIS-141:
-------------------------------------------

It seems easier to reproduce the failure of TestRaftStream if the 
AppendStreamer.LOG is turned off.
{code}
+++ b/ratis-grpc/src/test/java/org/apache/ratis/grpc/TestRaftStream.java
@@ -46,7 +46,7 @@ import static org.junit.Assert.fail;
 
 public class TestRaftStream extends BaseTest {
   static {
-    LogUtils.setLogLevel(AppendStreamer.LOG, Level.ALL);
+//    LogUtils.setLogLevel(AppendStreamer.LOG, Level.ALL);
   }
{code}
With the script in RATIS-147, run
{code}
./dev-support/run-test-repeatedly.sh TestRaftStream#testSimpleWrite
{code}


> In RaftClientProtocolService, the assumption of consecutive callId is invalid
> -----------------------------------------------------------------------------
>
>                 Key: RATIS-141
>                 URL: https://issues.apache.org/jira/browse/RATIS-141
>             Project: Ratis
>          Issue Type: Bug
>            Reporter: Tsz Wo Nicholas Sze
>            Assignee: Tsz Wo Nicholas Sze
>         Attachments: r141_20171117.patch
>
>
> {code}
> //RaftClientProtocolService.AppendRequestStreamObserver.onNext(..)
>               // we assume the callId is consecutive for a stream RPC call
>               final PendingAppend pendingForReply = pendingList.get(
>                   (int) (replySeq - headSeqNum));
> {code}
> Call id is used for different kinds of calls (e.g. getInfo) so that it may 
> not be consecutive.



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