THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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Usually we have no interest in internal topics when using the kafka-topics.sh command . However, the kafka-topics.sh can't exclude the internal topics simply. We have to write the regular to exclude the internal topics. This kip tries to add a flag (perhaps "exclude-internal") to kafka-topics.sh. If user set the flag, all internal topics will be excluded by the following commands - "list" and "describe"
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