IBM Support

Why did I get "Response content is Error 404" in the gateway log file while sending events to Log Analysis?

Question & Answer


Question

After I configured Omnibus XML Gateway to send events to Log Analysis (LA), I observed the following error messages in the gateway log file:
2020-11-05T17:09:30: Debug: D-GJA-000-000: [ngjava]: XMLGateway: Time to flush event batch to Unity 'https://scala.ibmtest.com:9987/Unity/DataCollector'.
2020-11-05T17:09:30: Debug: D-GJA-000-000: [ngjava]: XMLGateway: [THREAD=45]: Sending JSON Msg To Data Collector 'https://scala.ibmtest.com:9987/Unity/DataCollector': [{"hostname":"OMNIBUS-DS","logpath":"MYOMNI", ...
2020-11-05T17:09:30: Debug: D-GJA-000-000: [ngjava]: XMLGateway: [THREAD=45]: [POST]: Using REST address: https://scala.ibmtest.com:9987/Unity/DataCollector
2020-11-05T17:09:30: Debug: D-GJA-000-000: [ngjava]: XMLGateway: [THREAD=45]: Response content is Error 404: {"RESPONSE_CODE":404,"BATCH_STATUS":"NONE","RESPONSE_MESSAGE":"CTGLA0401E : Missing data source"}
2020-11-05T17:09:30: Error: E-GJA-000-000: [ngjava]: XMLGateway: [THREAD=45]: Failed to send batch to data collector. HTTP response code != 200. [{ responseCode:404 responseMessage:Not Found responseException:null authenticationRequired:false cookieJar:null responseContent:{"RESPONSE_CODE":404,"BATCH_STATUS":"NONE","RESPONSE_MESSAGE":"CTGLA0401E : Missing data source"}
].
How do I fix it?

Answer

First, check the message that starts with "Sending JSON Msg To Data Collector". You can retrieve details about Log Analysis datasource from there.
For example,
Sending JSON Msg To Data Collector 'https://scala.ibmtest.com:9987/Unity/DataCollector': [{"hostname":"OMNIBUS-DS","logpath":"MYOMNI", ...
Referring to the example, the gateway tried to send events to Log Analysis at:
https://scala.ibmtest.com:9987/Unity/DataCollector
The hostname of the datasource was "OMNIBUS-DS" and the logpath was "MYOMNI".
You need to crosscheck the configured datasource to make sure the details are correct.
image 7003
image 7004
To correct the error, you need to make changes to the "scalaTransport.properties" configuration file of the gateway:
[scalaTransport.properties]
​jsonMsgHostname=OMNIBUS-DS
jsonMsgPath=MYOMNI

[{"Line of Business":{"code":"LOB45","label":"Automation"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSPFMY","label":"IBM Operations Analytics - Log Analysis"},"ARM Category":[{"code":"a8m0z000000bpvbAAA","label":"Log Analysis->Third Party Components->XML gateway"}],"ARM Case Number":"","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"1.3.5;1.3.6"}]

Document Information

Modified date:
10 November 2020

UID

ibm16364993

Page Feedback