Nodemanager does not restart managed server after reboot of the Linux operating system

Running Linux 2.6.18, Sun JDK 1.6.0_14 and WebLogic 10.3, we have a functioning correctly nodemanager watch a single managed server. If I kill-9, the managed server, the nodemanager immediately triggers a new. If, however, restart us the box, the nodemanager will start cleanly and does not start the managed server. He seems to believe the node should be kept low and indicates its status UNKNOWN.

I saw where is a problem known on Windows boxes, easily worked around by providing the Xrs setting - for the start settings for the managed server. (Section 5 of the config doc General nodemanager.) I do not, however, where there a just as clean solution for Linux.

Things I've tried:
+ When I put the server for DEBUGGING, it shows no sign of a stop signal is received. It is dumping loads of cluster messages, etc., in the newspaper and then suddenly just log ends so he is going to die by kill-9. If the nodemanager works at this time, he might try to restart the managed server and save it somewhere as failed permanently.
+ The nodemanager saves only the INFO level and connects to evidence to decide to leave the node down. (DEBUGGING is an invalid LogLevel, so that's all I have.)
+ A signal to restart sent our AdminServer (on another Linux machine) begins the node managed through the nodemanager. Nothing unusual happens or is connected.

I'm curious to see things:
+ Is it possible to see what state the nodemanager believes the managed server to be?
+ Is there some value in some doc somewhere who could tell that the server does not have to be restarted?
+ Y at - it is not an action of customer NodeManager log? I see nothing in domain.log or AdminServer.log except when the NM is down.

Thank you

Kevin

ListenPort = 5556
ListenBacklog = 50
SecureListener = true
AuthenticationEnabled = true
NativeVersionEnabled = false
CrashRecoveryEnabled = true
JavaHome = / appl/java/jre
StartScriptEnabled = false
StopScriptEnabled = false
StartScriptName = startWebLogic.sh
StopScriptName =
LogFile=/appl/bea/wlserver_10.3/common/nodemanager/logs/nodemanager.log
LogLevel = INFO
LogLimit = 0
LogCount = 1

You can set NativeVersionEnabled to true. We have faced this in windows that was corrected by changing this property. A few notes on this program:

Faced with this interesting question in Windows 2008 environment. Managed servers were lit by the Manager of knots and it was expected that a reboot of the system after a crash, the node Manager will restore the State of the managed servers in the State it was before the accident. Node Manager is configured to run as a windows service. As a result, he started after server restart. But individual managed servers were not start-up. Interestingly, for managed servers started by the Manager of the nodes there no .lck file in the folder/data / NodeManger.

To resolve this problem always, set the following properties in the nodemanager.properties on the base of node maager directory.

CrashRecoveryEnabled = true / * this default is set to false. This must be enabled for an automatic restart after accident at work * /.

NativeVersionEnabled = true / * this is by default set to true, and it must be configured as such. If disable you this option on platforms for which weblogic provide JNI native libraries (for example in Windows 2008) then this custom create the .lck file and so node Manager cannot restart the server managed after the crash.

Note: According to the documentation official .lck files are necessary for managers to auto restart weblogic node after system crash

Official documentation:

Once the system is restarted, Node Manager checks each managed domain specified in the nodemanager.domains file to determine if there are server instances were not stopped. This is determined by the presence of all the lock files that are created by Node Manager when a WebLogic Server process is created. This lock file contains the process identifier for the WebLogic Server startup script. If the lock file exists, but the process ID is not running, Node Manager will attempt to automatically restart the server.

If the process is running, Node Manager performs an additional check to access the management running servlet in the process to verify that the process corresponding to the process ID is a WebLogic Server instance.

Once the system is restarted, Node Manager checks each managed domain specified in the nodemanager.domains file to determine if there are server instances were not stopped. This is determined by the presence of all the lock files that are created by Node Manager when a WebLogic Server process is created. This lock file contains the process identifier for the WebLogic Server startup script. If the lock file exists, but the process ID is not running, Node Manager will attempt to automatically restart the server. If the process is running, Node Manager performs an additional check to access the management running servlet in the process to verify that the process corresponding to the process ID is a WebLogic Server instance.

*/

Tags: Fusion Middleware

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