Bug 808537 - JGroups sender window not found
Summary: JGroups sender window not found
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: JBoss Data Grid 6
Classification: JBoss
Component: unspecified
Version: 6.0.0
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
: ---
Assignee: Tristan Tarrant
QA Contact: Michal Linhard
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2012-03-30 16:15 UTC by Michal Linhard
Modified: 2014-03-17 04:02 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
When nodes leave the cluster, JGroups may log the following messages: "sender window for nodeXXX/default not found". This message is harmless and can be safely ignored.
Clone Of:
Environment:
Last Closed: 2012-04-20 12:44:18 UTC
Type: Bug


Attachments (Terms of Use)

Description Michal Linhard 2012-03-30 16:15:43 UTC
Elasticity tests 4 nodes, dist mode:
http://www.qa.jboss.com/~mlinhard/hyperion/run44-elas-dist/

node 2: (lots of these)
05:31:11,206 SEVERE [org.jgroups.protocols.UNICAST2] (undefined) node0002/default: sender window for node0003/default not found
node 3: (two of these)
05:32:33,060 SEVERE [org.jgroups.protocols.UNICAST2] (undefined) node0003/default: sender window for node0004/default not found
node 4: (lots of these)
05:31:18,099 SEVERE [org.jgroups.protocols.UNICAST2] (undefined) node0004/default: sender window for node0003/default not found

I'm not sure whether this is Infinispan or JGroups bug.

Comment 1 Tristan Tarrant 2012-04-03 07:18:40 UTC
From Bela:


 A sends a unicast to B
 seqno=3
 However, B doesn't have a connection from A and cannot accept seqno=3, it needs to have seqno=1 first
 So B asks A to send the lowest seqno (1)
 A now gets this request, but B has crashed of left in the meantime
So A doesn't find the connection window for B and hence the warning
 This *should* not affect the rest of the system, all you see are some nasty error messages in the log

Comment 2 Tristan Tarrant 2012-04-04 12:25:58 UTC
    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
When nodes are leaving, sometimes JGroups will log the following messages: "sender window for nodeXXXX/default not found". These are harmless and can be ignored

Comment 3 Misha H. Ali 2012-04-04 15:49:35 UTC
    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 +1 @@
-When nodes are leaving, sometimes JGroups will log the following messages: "sender window for nodeXXXX/default not found". These are harmless and can be ignored+When nodes leave the cluster, JGroups may log the following messages: "sender window for nodeXXX/default not found". This message is harmless and can be safely ignored.


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