Splunkweb login is not working

[mataharry]

I'm getting the error message above while trying to login the interface.
In IE, the tab also reads Login - Splunk UNKNOWN_VERSION(000) even though I have a valid license installed.

This is my indexer/deployment-server/search-head/coffe-maker.

[yannK · Accepted solution]

So your server an indexer, a search-head and a deployment server ?
do you have an idea of how many deployments-clients connects to it ?

Usually when the web interface is not displaying the version, this is because the splunkd (management port 8089) process is not responding to the splunkweb process.

• because after a restart splunkd is busy (rebuilding the buckets by example)
• or because too many deployments-clients are connected to splunkd on the port 8089 used also for the deployment.

The short term solution is to disable the deployment-server and change the management port from 8089 to another port (like 8090)
in $SPLUNK_HOME/etc/system/local/web.conf
([settings] mgmtHostPort )
That way the deployment-clients will not be served.

The long term solution is to setup a dedicated deployment server.
see http://splunk-base.splunk.com/answers/26620/how-many-clients-can-one-deployment-server-manage