12:07 a.m.
[
https://issues.jboss.org/browse/ISPN-1948?page=com.atlassian.jira.plugin....
]
RH Bugzilla Integration commented on ISPN-1948:
-----------------------------------------------
Misha H. Ali <mhusnain(a)redhat.com> made a comment on [bug
807741|https://bugzilla.redhat.com/show_bug.cgi?id=807741]
Technical note updated. If any revisions are required, please edit the "Technical
Notes" field
accordingly. All revisions will be proofread by the Engineering Content Services
team.
Diffed Contents:
@@ -1,3 +1,4 @@
-The issue is a race condition on the Hot Rod server, which can lead to sending topologies
erroneously as a result of addition of a new node to the cluster. When the issue appears,
clients will start seeing "Invalid magic number" error messages as a result of
the stream containing unexpected data.
+The issue is a race condition on the Hot Rod server, which can lead to topologies being
sent erroneously as a result of addition of a new node to the cluster. When the issue
appears, clients will start seeing "Invalid magic number" error messages as a
result of unexpected data within the stream.
</para>
-When the issue appears, the safest thing to do is to restart the client, but the client
might recover itself once all the unexpected data has been consumed. If the client
recovers, the view topology it has will be lacking one of the added nodes, so although it
would work relatively Ok, it would lead to some uneven request distribution.+<para>
+When this problem is encountered, the recommended approach is to restart the client. If
the client is not restarted, on some occasions, the client may recover after the
unexpected data is consumed but this is not guaranteed. If the client recovers with a
restart, the view topology displayed does not display one of the nodes added, resulting in
uneven request distribution.
Invalid magic number
--------------------
Key: ISPN-1948
URL: https://issues.jboss.org/browse/ISPN-1948
Project: Infinispan
Issue Type: Bug
Affects Versions: 5.1.3.FINAL
Reporter: Michal Linhard
Assignee: Galder Zamarreño
Fix For: 5.1.x, 5.2.0.ALPHA1, 5.2.0.FINAL
Attachments: summary
Here we have the good old "invalid magic number" problem again (JDG 6.0.0.ER5
testing):
https://hudson.qa.jboss.com/hudson/view/EDG6/view/EDG-REPORTS-RESILIENCE/...
{code}
2012-03-26 15:18:43,524 253444 ERROR [org.jboss.smartfrog.edg.loaddriver.DriverNode]
(Client-477:) Error doing PUT(key410977) to node node02 (lastOpTime 1 ms)
org.infinispan.client.hotrod.exceptions.InvalidResponseException:: Invalid magic number.
Expected 0xa1 and received 0x0
at org.infinispan.client.hotrod.impl.protocol.Codec10.readHeader(Codec10.java:92)
at
org.infinispan.client.hotrod.impl.operations.HotRodOperation.readHeaderAndValidate(HotRodOperation.java:78)
at
org.infinispan.client.hotrod.impl.operations.AbstractKeyValueOperation.sendPutOperation(AbstractKeyValueOperation.java:72)
at
org.infinispan.client.hotrod.impl.operations.PutOperation.executeOperation(PutOperation.java:52)
at
org.infinispan.client.hotrod.impl.operations.PutOperation.executeOperation(PutOperation.java:41)
at
org.infinispan.client.hotrod.impl.operations.RetryOnFailureOperation.execute(RetryOnFailureOperation.java:68)
at org.infinispan.client.hotrod.impl.RemoteCacheImpl.put(RemoteCacheImpl.java:219)
at org.infinispan.CacheSupport.put(CacheSupport.java:52)
at
org.jboss.qa.edg.adapter.HotRodAdapter$HotRodRemoteCacheAdapter.put(HotRodAdapter.java:249)
at
org.jboss.qa.edg.adapter.HotRodAdapter$HotRodRemoteCacheAdapter.put(HotRodAdapter.java:234)
at
org.jboss.smartfrog.edg.loaddriver.DriverNodeImpl$ClientThread.makeRequest(DriverNodeImpl.java:244)
at
org.jboss.smartfrog.edg.loaddriver.DriverNodeImpl$ClientThread.run(DriverNodeImpl.java:375)
{code}
The exception repeats many times in the log and the "received" part of
"Expected 0xa1 and received 0xXX" takes on different values.
Also happens in both PUT and GET operations.
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