ErrorLog "| /usr/bin/tee -a /var/log/httpd/error_log | /usr/bin/java -cp /usr/local/bin/CustomProducer/producer.jar stdin.producer.StdInProducer /usr/local/bin/CustomProducer/config.json >> /var/log/producer_init.log 2>&1"
Apache successfully starts the process and logs are sent to the producer as will which consumes it from stdin. This is a Apache Kafka command line producer. It buffers the logs before sending out size of which is controllable using setting.
I am consuming these logs using another consumer.
Problem :
Across restart it was found that some logs are missing between error_log file and what consumer is receiving. Can somebody throw a light on how this mechanism works ? In the sense is it that the dependent process ends first and then apache stops in which case it writes few logs that are not passed on.
Or is is that after restart, the dependent process takes some time to start after apache in which case as well few initial logs are missed ?
And finally is there way to overcome this loss ?
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