Oracle Traffic Director (OTD) Instances configured with WebGate plugin shows Memory Usage Increasing Continuously On OTD Nodes (VMs) Causing Out Of Memory (Doc ID 2014440.1)

Last updated on JUNE 20, 2017

Applies to:

Oracle Exalogic Elastic Cloud Software - Version 2.0.6.0.1 and later
Oracle Traffic Director - Version 11.1.1.7.0 and later
Information in this document applies to any platform.

Symptoms

On OTD 11.1.1.7.0 version configured with WebGate Plugin, OTD instances are using a lot of memory up to 3GB

Utilisation at 9 AM

Memory Process ID
======================
4.0G 6055 
0.1G 7255 
0.4G 9727 
0.4G 16611 
3.3G 16615 
3.0G 16629 
2.9G 16632 
3.2G 16633 
0.2G 29336 
Total Oracle Usage: 18.2

 

[root@server ~]# ps -ef | grep 6055
oracle 6055 6052 6 Feb24 ? 01:04:33 trafficd -d /oracle/app/environments/otd/AdminNode/net-WT-oi2nftsecoimweb/config -r /oracle/app/product/otd/11.1.1.7.0 -t /oracle/app/environments/otd/otdtmp/net-WT-oi2nftsecoimweb -u oracle
root 12602 8745 0 09:03 pts/1 00:00:00 grep 6055
You have mail in /var/spool/mail/root
[root@server ~]# ps -ef | grep 16615
root 12757 8745 0 09:03 pts/1 00:00:00 grep 16615
oracle 16615 26930 18 05:02 ? 00:45:31 trafficd -d /oracle/app/environments/otd/AdminNode/net-WT-oi2nftcobuinweb/config -r /oracle/app/product/otd/11.1.1.7.0 -t /oracle/app/environments/otd/otdtmp/net-WT-oi2nftcobuinweb -u oracle
[root@server ~]# ps -ef | grep 16629
root 12843 8745 0 09:03 pts/1 00:00:00 grep 16629
oracle 16629 6399 16 05:02 ? 00:39:47 trafficd -d /oracle/app/environments/otd/AdminNode/net-WT-oi2nftecmsuiweb/config -r /oracle/app/product/otd/11.1.1.7.0 -t /oracle/app/environments/otd/otdtmp/net-WT-oi2nftecmsuiweb -u oracle
[root@server ~]# ps -ef | grep 16632
root 12927 8745 0 09:03 pts/1 00:00:00 grep 16632
oracle 16632 6268 15 05:02 ? 00:38:17 trafficd -d /oracle/app/environments/otd/AdminNode/net-WT-oi2nftporcntweb/config -r /oracle/app/product/otd/11.1.1.7.0 -t /oracle/app/environments/otd/otdtmp/net-WT-oi2nftporcntweb -u oracle
[root@server ~]# ps -ef | grep 16633
root 12993 8745 0 09:03 pts/1 00:00:00 grep 16633
oracle 16633 6153 18 05:02 ? 00:43:25 trafficd -d /oracle/app/environments/otd/AdminNode/net-WT-oi2nftsecidmweb/config -r /oracle/app/product/otd/11.1.1.7.0 -t /oracle/app/environments/otd/otdtmp/net-WT-oi2nftsecidmweb -u oracle
[root@server ~]#

 

 

After 6 Hours we saw the below Utilisation

Memory Process ID
======================
5.8G 16615
5.2G 16629
5.0G 16632
5.6G 16633

and after few mins the vm is just Hung and not responding..

 


Due to this issue, users cannot access when OTD uses a lot of memory and having hang outage.



Changes

 

Cause

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