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Troubleshooting steps for Denodo API failure

Hello Denodo Team, In case, if the REST APIs stops retrieving data. Could you please provide Step by Step troubleshooting sequence to handle this issue.
18-09-2020 17:01:30 -0400

1 Answer

Hi, In my environment, I have a [JSON datasource]( which retrieves data from the REST API and I was able to get the complete results. If I face any issues, I would check the **vdp.log ** file under the "<DENODO_HOME>\logs\vdp" directory for any [status codes]( returned by the Virtual DataPort while accessing the API. To further analyze the root cause, I would also set the corresponding log category to 'TRACE' level by executing this command in VQL Shell like below: `CALL LOGCONTROLLER('httpclient.wire', 'TRACE');` Once this is executed, I would check the ‘vdp.log’ file again to find more information on the issue. Then, I would revert the log level to ERROR: `CALL LOGCONTROLLER('httpclient.wire','ERROR');` You can take a look at the [HTTP Path]( section of the Virtual DataPort Administration Guide. Hope this helps!
Denodo Team
21-09-2020 06:51:36 -0400
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