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KB484591: The Platform Analytics Warehouse doesn’t contain updated data and a FailedSentOutMessages folder is generated in MicroStrategy 2020


Danfeng Zhan

Principal Product Specialist • Strategy


This article explains why the Platform Analytics Warehouse doesn't contain updated data in MicroStrategy 2020. This article also provides a solution to avoid this behavior.

Description


The Platform Analytics wWarehouse doesn’t contain updated data when running the below SQL from the DBQuery tool on Strategy 2020.

SELECT * FROM platform_analytics_wh.access_transactions order by tran_timestamp desc;

ka04W000000Vo0KQAS_0EM4W000001IqzO.jpeg

KFKProducerError.log
 contains many of the following entry:
[HOST:sup-w-003624][PID:12008][THR:13456]Open file C:\Program Files (x86)\Common Files\MicroStrategy\Log\FailedSentOutMessages\KafkaFailMessage_812 for storing fail messages. 

The
FailedSentOutMessages
 folder contains many
KafkaFailMessage_x
files generated in the same folder as the
DSSError.log
file, as shown in the following screenshot.

ka04W000000Vo0KQAS_0EM4W000001IqzY.jpeg

Why is this happening?


The Kafka Server is down unexpectedly as indicated by Kafka

server.log
, as shown below.
INFO [KafkaServer id=0] shut down completed (kafka.server.KafkaServer) ERROR Exiting Kafka. (kafka.server.KafkaServerStartable) INFO [KafkaServer id=0] shutting down (kafka.server.KafkaServer)

Solution


Start the Kafka Server from services. You can see the 

FailedSentOutMessages
 folder is is immediately emptied. The below entries are observed in
KFKProducerError.log
, as shown below.
[HOST:xxx][PID:5876][THR:14988]Start processing fail messages in file C:\Program Files (x86)\Common Files\MicroStrategy\Log\FailedSentOutMessages\KafkaFailMessage_1365. [HOST:xxx][PID:5876][THR:14988]Finish processing 1872 fail messages in the file. 

Refer to Platform Analytics Failed Statistics for the mechanism to resubmit
FailedSentOutStatistics
to the Kafka Broker in Strategy 2020. 


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Knowledge Article

Published:

September 27, 2020

Last Updated:

September 27, 2020