Error Org.jgroups.protocols.pbcast.nakack Range Is Null
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this post in threaded view ♦ ♦ | Report Content as Inappropriate ♦ ♦ NAKACK - range is null, sender not found in xmit_table We have our application using JGroups set up on 2 win2k3 test-server boxes running in VMware and pulled into a Windows Network Load Balancer setup. Our daily backup procedure stops both boxes, does the backup and puts them back online. Sometime in this process, JGroups starts spamming the logs with the following two lines of error: 2008-09-19 17:11:46,362 ERROR 60152285 [org.jgroups.protocols.pbcast.NAKACK] - range is null 2008-09-19 17:11:46,362 ERROR 60152285 [org.jgroups.protocols.pbcast.NAKACK] - sender OTHER_HOST_IP:4931 not found in xmit_table where https://access.redhat.com/solutions/19014 OTHER_HOST_IP always refers to the ip address of the other cluster node (while the problem happens on both nodes equally). We get thousands of these errors per second and it doesn't appear to stop ever (we actually realized the problem first when the servers had ran out of disk space. We are using JGroups 2.6.3 (the previous stable version), didn't yet have a chance to upgrade to the latest. http://jgroups.1086181.n5.nabble.com/NAKACK-range-is-null-sender-not-found-in-xmit-table-td4529.html Any idea what can cause this problem? Slightly related, should JGroups with the stock udp.xml setup work with windows nodes being in an NLB setup? thanks, Kristof ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/_______________________________________________ javagroups-users mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/javagroups-users Kristof Jozsa Reply | Threaded Open this post in threaded view ♦ ♦ | Report Content as Inappropriate ♦ ♦ Re: NAKACK - range is null, sender not found in xmit_table err.. can I provide any additional piece of info to determine what this problem can be about? cheers, Kristof On Wed, Sep 24, 2008 at 1:39 PM, Kristof Jozsa <[hidden email]> wrote: > We have our application using JGroups set up on 2 win2k3 test-server > boxes running in VMware and pulled into a Windows Network Load > Balancer setup. Our daily backup procedure stops both boxes, does the > backup and puts them back online. Sometime in this process, JGroups > starts spamming the logs with the following two lines of error: > > 2008-09-19 17:11:46,362 ERROR 6015
Class NAKACK java.lang.Object org.jgroups.stack.Protocol org.jgroups.protocols.pbcast.NAKACK All http://jgroups.org/javadoc/org/jgroups/protocols/pbcast/NAKACK.html Implemented Interfaces: DiagnosticsHandler.ProbeHandler, Retransmitter.RetransmitCommand Deprecated. Will be removed in 4.0 @Deprecated public class NAKACK extends Protocol implements Retransmitter.RetransmitCommand, DiagnosticsHandler.ProbeHandler Negative AcKnowledgement layer (NAKs). Messages are assigned a monotonically increasing sequence number (seqno). Receivers deliver messages ordered according error org.jgroups.protocols.pbcast.nakack to seqno and request retransmission of missing messages. Retransmit requests are usually sent to the original sender of a message, but this can be changed by xmit_from_random_member (send to random member) or use_mcast_xmit_req (send to everyone). Responses can error org.jgroups.protocols.pbcast.nakack range also be sent to everyone instead of the requester by setting use_mcast_xmit to true. Author: Bela Ban Field Summary Fields Modifier and Type Field and Description protected BoundedList<Message> become_server_queue Deprecated. protected int become_server_queue_size Deprecated. protected BoundedList