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HUAWEI CLOUD Stack 6.5.0 Alarm and Event Reference 04

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ALM-1110017 Tomcat Process Does Not Exist

ALM-1110017 Tomcat Process Does Not Exist

Description

This alarm is generated when a zombie tomcat process exists on an AS node.

Attribute

Alarm ID

Alarm Severity

Auto Clear

1110017

Major

Yes

Parameters

Parameter

Description

Alarm Name

Alarm name.

Source System

Name of the source system where the alarm is generated.

IP Address

IP address of the ECS where the alarm is generated.

Last Occurred At

Time when the alarm was generated for the last time.

Additional Information

Supplementary information about the alarm.

Impact on the System

An AS service exception may occur.

Possible Causes

The child process exits before the parent process but the parent process does not invoke the wait or waitpid command. In this case, the child process becomes a zombie process.

Procedure

  1. Log in to ManageOne Maintenance Portal using a browser.

    • URL: https://Address for accessing the homepage of ManageOne Maintenance Portal:31943, for example, https://oc.type.com:31943
    • Default username: admin; default password: Huawei12#$

  2. On the menu bar in the upper part of the page, choose Alarms > Current Alarms.
  3. In the alarm list, locate the alarm to be handled, and click on the left of the alarm. The Details page is displayed.
  4. Choose Location Info, obtain the host IP address, that is, the IP address of the node where the alarm is generated.
  5. Use PuTTY to log in to the VM identified in 4.

    Default username: admin; default password: IaaS@OS-CLOUD9!

  6. Run the following command to disable PuTTY logout upon timeout:

    TMOUT=0

  7. Run the following command to check whether the tomcat process exists:

    ps -ef|grep autoscaling

    If the following information is displayed, the process exists:

    admin     5637     1 26 10:11 pts/0    00:02:40 /opt/autoscaling/jre1.8/bin/java -Dnop -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djdk.tls.ephemeralDHKeySize=2048 -Dorg.apache.catalina.security.SecurityListener.UMASK=0027 -Djava.endorsed.dirs=/opt/autoscaling/tomcat/endorsed -classpath /opt/autoscaling/tomcat/bin/bootstrap.jar:/opt/autoscaling/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/opt/autoscaling/tomcat -Dcatalina.home=/opt/autoscaling/tomcat -Djava.io.tmpdir=/opt/autoscaling/tomcat/temp org.apache.catalina.startup.Bootstrap start
    admin    31140  4836  0 10:21 pts/0    00:00:00 grep --color=auto autoscaling
    • If yes, go to 8.
    • If no, go to 9.

  8. Run the following command to stop the tomcat process:

    sh /opt/autoscaling/autoscaling-api/autoscaling.sh stop

  9. Run the following command to restart the tomcat process:

    sh /opt/autoscaling/autoscaling-api/autoscaling.sh restart

    If the following information is displayed, the tomcat process is restarted successfully:

    stop autoscaling-api succeed.
    start autoscaling-api succeed.

  10. If the alarm persists, contact technical support for assistance.

Related Information

None

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Updated: 2019-08-30

Document ID: EDOC1100062365

Views: 35772

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