I'll fix this per your bug on Monday. Thanks.
--- On Thu, 8/21/08, Niall Gallagher <[EMAIL PROTECTED]> wrote: > From: Niall Gallagher <[EMAIL PROTECTED]> > Subject: Re: Lateral UDP Discovery Issue with JBoss > To: "JCS Users List" <jcs-users@jakarta.apache.org> > Date: Thursday, August 21, 2008, 1:00 PM > Hi Rasuyom, > > It's not clear what JCS is trying to do there - if you > could provide > some of the stack trace it would help. Your environment is > very similar > to ours though - Centos (which version?), Java 6, JBoss > 4.2.2. Although > we are running slightly older JCS 1.2.7.9. Also we are > running the JCS > remote server not the lateral configuration but we had > issues similar to > what you mention. > > It looks like the server might be trying to either: > > 1) open a socket so other servers can connect to it over > the network > ---however it's trying to open the socket on its own > loopback interface > (127.0.0.1) instead of its LAN interface > > or > > 2) connect to a remote server > ---however it's trying to communicate with the other > server using IP > address 127.0.0.1 > > > Issue (1) can be caused by JCS' use of > InetAddress.getLocalHost(). This > causes JCS to confuse the server's loopback interface > with the server's > actual network card, so JCS tries to bind to the loopback > interface > instead of the network card at startup. I've logged a > bug report for JCS > on this here: http://issues.apache.org/jira/browse/JCS-40 > > Issue (2) can be caused by a remote server connecting to > the local > server, but telling the local server to use IP address > 127.0.0.1 for > callbacks. This can cause the local server to try to call > back to the > remote server via 127.0.0.1 which obviously fails. > > I posted my solutions to both these problems in the bug > report above. My > solution was basically to fix the root cause of the issue > which is > InetAddress.getLocalHost() in JCS source code by replacing > all uses of > that method with the method I included in the bug report. > > If you want a quick fix and your servers have static IP > addresses, you > could alter the /etc/hosts file to make > InetAddress.getLocalHost() > return the LAN IP address of the server instead of the > loopback IP. > There are disadvantages to this per my bug report. > > Basically if you see any errors mentioning 127.0.0.1 > it's due to the > InetAddress.getLocalHost() bug. We've successfully > sorted the issue in > our in house build and everything works now. > > Niall > > On Thu, 2008-08-21 at 12:25 -0700, rasuyom wrote: > > > Hi, > > > > I'm pretty new with JCS Lateral UDP Discovery and > I followed the samples but > > i can't seem to make it work. This is how I > configured my cache.ccf > > > > Server 1: > > > jcs.auxiliary.LTCP=org.apache.jcs.auxiliary.lateral.socket.tcp.LateralTCPCacheFactory > > > jcs.auxiliary.LTCP.attributes=org.apache.jcs.auxiliary.lateral.socket.tcp.TCPLateralCacheAttributes > > jcs.auxiliary.LTCP.attributes.TcpListenerPort=11110 > > jcs.auxiliary.LTCP.attributes.AllowGet=true > > #jcs.auxiliary.LTCP.attributes.PutOnlyMode=false > > > jcs.auxiliary.LTCP.attributes.UdpDiscoveryAddr=228.5.6.9 > > jcs.auxiliary.LTCP.attributes.UdpDiscoveryPort=6780 > > jcs.auxiliary.LTCP.attributes.UdpDiscoveryEnabled=true > > > > Server 2: > > > jcs.auxiliary.LTCP=org.apache.jcs.auxiliary.lateral.socket.tcp.LateralTCPCacheFactory > > > jcs.auxiliary.LTCP.attributes=org.apache.jcs.auxiliary.lateral.socket.tcp.TCPLateralCacheAttributes > > jcs.auxiliary.LTCP.attributes.TcpListenerPort=11111 > > #jcs.auxiliary.LTCP.attributes.PutOnlyMode=false > > jcs.auxiliary.LTCP.attributes.AllowGet=true > > > jcs.auxiliary.LTCP.attributes.UdpDiscoveryAddr=228.5.6.9 > > jcs.auxiliary.LTCP.attributes.UdpDiscoveryPort=6780 > > jcs.auxiliary.LTCP.attributes.UdpDiscoveryEnabled=true > > > > > > I have been searching the mail archives and follow > some trails but still > > couldn't fix my errors below: > > > > Server 1: > > 06:20:44,921 ERROR [LateralCacheRestore] Can't fix > Can't fix Socket is null, > > cannot connect to 127.0.0.1:11111 > > > > Server 2: > > 06:21:00,764 ERROR [LateralCacheRestore] Can't fix > Can't fix Socket is null, > > cannot connect to 127.0.0.1:11110 > > > > > > As I saw some people saw this problem with Linux/*nix > systems and I am > > wondering is someone can shed some light on how to > resolve this problem. > > > > Please bear with me. > > > > Thanks! > > > > > > Environment: > > JCS 1.3 Lateral UDP Discovery, JBoss 4.2.2, Centos, > JDK 1.6.0_07 --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
