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Error "Exceeded Max Concurrent Instances Of Scheduled Job. Max Limit Is 1" When Running Agents (Doc ID 2777480.1)

Last updated on MAY 23, 2021

Applies to:

Oracle Analytics Server - Version 5.5.0.0.201216 and later
Oracle Analytics Cloud - Version 105.5.0 and later
Business Intelligence Server Enterprise Edition - Version 12.2.1.4.0 and later
Information in this document applies to any platform.

Symptoms

Error "Exceeded max concurrent instances of scheduled job. Max limit is 1" in NQscheduler log when running Agents:

One of our scheduler process logs has:

<timestamp> [OBISCH] [TRACE:1] [] [] [ecid: ] [sik: service1] [tid: e5479700] Agent Started: <agent_path>^M
<timestamp> [OBISCH] [ERROR:1] [] [] [ecid: ] [sik: service1] [tid: e5479700] [nQSError: 77030] Oracle BI Presentation Server Connection Error: Unexpected end of file encountered. 4 bytes were requested and 0 bytes were read. [[^M
file: server/NQSScheduler/iBotWebAPI/Src/IBWUtils.cpp; line: 49^M
Error Codes: KUWODMKH
 in call Session retrieveRC^M
]]^M
<timestamp> [OBISCH] [ERROR:1] [] [] [ecid: ] [sik: service1] [tid: e5479700] [nQSError: 77030] Oracle BI Presentation Server Connection Error: Unexpected end of file encountered. 4 bytes were requested and 0 bytes were read. [[^M
file: server/NQSScheduler/iBotWebAPI/Src/IBWUtils.cpp; line: 49^M
Error Codes: KUWODMKH
 in call Session retrieveRC^M
]]^M
<timestamp> [OBISCH] [ERROR:1] [] [] [ecid: ] [sik: service1] [tid: e5479700] [nQSError: 77006] Oracle BI Presentation Server Error: Invalid iBot session ID. [[^M
file: server/NQSScheduler/iBotWebAPI/Src/IBWUtils.cpp; line: 26^M
Error Codes: MV5BAQPD
, in call Session retrieveRC^M
]]^M
<timestamp> [OBISCH] [TRACE:1] [] [] [ecid: ] [sik: service1] [tid: e5479700] Agent Finished: <agent_path>^M
<timestamp> [OBISCH] [ERROR:1] [] [] [ecid: ] [sik: service1] [tid: e5479700] [nQSError: 67020] Exceeded max concurrent instances of scheduled job. Max limit is 1. [[^M
file: server/NQSScheduler/Scheduler/Src/SchRunningInstanceTable.cpp; line: 51^M
]]^M

Cause

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In this Document
Symptoms
Cause
Solution
References


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