Engine.sh script doesn't resolve the IP address due a different ifconfig format on RHEL 7
Article ID: KB0092807
Updated On:
| Products | Versions |
|---|---|
| TIBCO Silver Fabric Engine | - |
| TIBCO Silver Fabric | - |
| Not Applicable | - |
Description
Resolution:
The daemon doesn't pick up the IP address correctly due to a different output format of the command "ifconfig -a" which looks like below:
[tibco@trex-centos-01 ~]$ ifconfig -a
docker0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 172.17.42.1 netmask 255.255.0.0 broadcast 0.0.0.0
ether 56:84:7a:fe:97:99 txqueuelen 0 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
The engine fails to get the IP address of the server correctly and returns 0.0.0.0 which in-turn prevents the engine daemon from starting up.
The workaround is to set the environment variable DS_USE_SNAT_IP_ADDRESS to the Engine’s IP on the engine start-up script. This should pick up the correct adapter relative to the IP. I have copied the release notes for the variable below:
The daemon doesn't pick up the IP address correctly due to a different output format of the command "ifconfig -a" which looks like below:
[tibco@trex-centos-01 ~]$ ifconfig -a
docker0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 172.17.42.1 netmask 255.255.0.0 broadcast 0.0.0.0
ether 56:84:7a:fe:97:99 txqueuelen 0 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
The engine fails to get the IP address of the server correctly and returns 0.0.0.0 which in-turn prevents the engine daemon from starting up.
The workaround is to set the environment variable DS_USE_SNAT_IP_ADDRESS to the Engine’s IP on the engine start-up script. This should pick up the correct adapter relative to the IP. I have copied the release notes for the variable below:
DS_USE_SNAT_IP_ADDRESS
This is an Engine Daemon setting.
To use this, set the environment variable DS_USE_SNAT_IP_ADDRESS on a Daemon to the IP address that you want it to report to the Manager and all Drivers as its address. Additionally, you MUST set 'Self Ping' on the fileserver to FALSE in the Engine Configuration.
Alternatively,This can also be set in the .bash_profile of the tibco user account.
Issue/Introduction
Engine.sh script doesn't resolve the IP address due a different ifconfig format on RHEL 7
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