Hi together,
We installed a oracle 11g database (standard edition one) on a virtual machine with operating system CentOS 6.9 (64 bit) using XEN center version 7.1.
The installation of the dbms and the creation of the database was successful.
The problem is, that the enterprise manager fails to start up:
emctl start dbconsole
Oracle Enterprise Manager 11g Database Control Release 11.2.0.1.0
Copyright (c) 1996, 2009 Oracle Corporation. All rights reserved.
https://192.168.2.46:1158/em/console/aboutApplication
Starting Oracle Enterprise Manager 11g Database Control ............................................................................................. failed.
------------------------------------------------------------------
Logs are generated in directory /opt/oracle/app/oracle/product/11.2.0/dbhome_1/v21oracle_MOGO/sysman/log
The Logs show:
2018-01-26 16:23:43,090 Thread-3626379008 Starting Agent 10.2.0.4.2 from /opt/oracle/app/oracle/product/11.2.0/dbhome_1 (00701)
2018-01-26 16:23:43,302 Thread-3626379008 [Oracle Exadata Storage Server] InstanceProperty (MgmtIPAddr2) is marked OPTIONAL but is being used (00506)
2018-01-26 16:23:43,598 Thread-3626379008 [Load Balancer Switch] InstanceProperty (snmpTimeout) is marked OPTIONAL but is being used (00506)
2018-01-26 16:23:46,795 Thread-3626379008 EMAgent started successfully (00702)
2018-01-26 16:23:46,806 Thread-3495442176 <Upload Manager> Exceeded Max allowed Upload data - No of files: 313, Size of upload data: 20,228505MB, Pct
(%) of Disk used: 16,43%, Disabling collections (00852)
2018-01-26 16:23:46,806 Thread-3495442176 Disable collector (00406)
Interestingly, we watched a java process in the top monitor which was starting and consuming significant CPU resources. After a few seconds, a new process with new PID is generated with same behaviour. This behavior repeats for about 10 times, ending in the "failed" message in the command line.
Finally, some output of the top:
top - 12:53:08 up 2 days, 20:33, 3 users, load average: 5.42, 3.93, 2.55
Tasks: 204 total, 1 running, 202 sleeping, 0 stopped, 1 zombie
Cpu(s): 68.1%us, 3.3%sy, 0.0%ni, 28.6%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 3974068k total, 3011740k used, 962328k free, 40964k buffers
Swap: 8699900k total, 0k used, 8699900k free, 2395504k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
30984 oracle 20 0 0 0 0 Z 100.0 0.0 0:06.89 java <defunct>
...
31702 oracle 20 0 2059m 85m 29m S 81.1 2.2 0:02.46 java
The processes keeps to try starting the process in a never ending loop...
Has anybody an idea how to track the problem, or did you watch a similar behaviour? Where would we get more information about the problem what is going wrong? What about a lack of RAM or bad java VM parameters?
Best regards from germany,
Stefan