Why are 50% of saved searches and scheduled searches showing as skipped on my Windows search heads?

[brod_geico]

On my windows search heads some of the searches showing skipped status. Some of them are running and some of them are not.
status=skipped, scheduled_time=1418934000.

i have checked below things.
disk quota limit.
alerts conf files
dispatcher

DispatchManager - The system is approaching the maximum number of historical searches that can be run concurrently. current=12 maximum=14
12-18-2014 14:36:04.542 -0500 WARN DispatchManager - The system is approaching the maximum number of historical searches that can be run concurrently. current=12 maximum=14
12-18-2014 14:36:11.979 -0500 WARN DispatchManager - The system is approaching the maximum number of historical searches that can be run concurrently. current=12 maximum=14
12-18-2014 14:36:19.401 -0500 WARN DispatchManager - The system is approaching the maximum number of historical searches that can be run concurrently. current=12 maximum=14

The system is approaching the maximum number of historical searches

[jayannah]

That's because adhoc searches are having higher priority over scheduled searches.

How many CPU core in the search head and indexers in your configuration?

You may have increase number of search heads or CPU core since it looks high number of searches are running concurrently.

[brod_geico]

Thanks for your help i have checked that already. im running with spluk 6.1 verison

[somesoni2]

I guess you're running more searches then your role allows you to run con-currently. Check this link to see how the quota is calculated.

http://wiki.splunk.com/Community:TroubleshootingSearchQuotas