{"id":2432,"date":"2011-05-31T11:22:12","date_gmt":"2011-05-31T15:22:12","guid":{"rendered":"http:\/\/onlineappsdba.com\/index.php\/2011\/05\/31\/error-starting-weblogics-admin-server-coherence-error-while-starting-cluster-wrapped-javanetsocketexception-no-buffer-space-available\/"},"modified":"2011-05-31T11:22:12","modified_gmt":"2011-05-31T15:22:12","slug":"error-starting-weblogics-admin-server-coherence-error-while-starting-cluster-wrapped-javanetsocketexception-no-buffer-space-available","status":"publish","type":"post","link":"https:\/\/onlineappsdba.com\/index.php\/2011\/05\/31\/error-starting-weblogics-admin-server-coherence-error-while-starting-cluster-wrapped-javanetsocketexception-no-buffer-space-available\/","title":{"rendered":"Error Starting WebLogic’s Admin Server – Coherence Error while starting cluster: (Wrapped) java.net.SocketException: No buffer space available"},"content":{"rendered":"

Oracle Coherence<\/a>\u00a0is java based in-memory data-grid product that provides data caching and data replication at application tier level. Most of Oracle Fusion Middleware including WebCenter, SOA, OSB, OAM.. uses coherence<\/strong> in high availability deployment\u00a0to distribute cache at application tier .\u00a0<\/p>\n

For distributed java object cache<\/strong> in Oracle apps R12 check my post here<\/a>\u00a0 (Coherence is NOT used in EBS R12 yet<\/font>)<\/p>\n

For coherence to work properly, operating system kernel parameter should be configured as documented here<\/a>. In my case I faced issue starting Admin Server because of coherence related\u00a0errors on IBM AIX<\/p>\n

________
\n[2011-05-05T12:42:53.075+01:00] [AdminServer] [ERROR] [] [Coherence] [tid: Logge
\n<\/font>r@1751148640<\/font><\/a>3.5.3\/465p2] [userId: <anonymous>] [ecid: 0000IyzxvQKBDCSMyENa6G1Dk
\ncmh000001,0] [APP: oam_admin#11.1.1.3.0]<\/p>\n

2011-05-05 12:42:53.075\/276.984 Oracle Coherence GE 3.5.3\/465p2 <Error> (thread=[ACTIVE] ExecuteThread: ‘1’ for queue: ‘weblogic.kernel.Default (self-tuning)’, member=n\/a):
\nError while starting cluster: (Wrapped) java.net. SocketException: No buffer space available<\/strong><\/p>\n

[[at com.tangosol. coherence.component. net.socket.UdpSocket.i nitializeDatag
\nramSocket(UdpSocket.CDB:28)
\n\u00a0at com.tangosol.coherence. component.net.socket. UdpSocket.open(UdpSocket.CDB:11)
\n\u00a0at com.tangosol.coherence. component.net.Cluster$ SocketManager$UnicastUdpSocket.open(Cluster.CDB:6)<\/font>
\n____________<\/p>\n

.<\/p>\n

Fix<\/u><\/strong> : set parameter for coherence as mentioned here<\/a>\u00a0i.e.<\/p>\n

From root user on IBM AIX
\n___
\nno -o rfc1323=1
\nno -o sb_max=4194304<\/font>
\n___<\/p>\n","protected":false},"excerpt":{"rendered":"

Oracle Coherence\u00a0is java based in-memory data-grid product that provides data caching and data replication at application tier level. 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