https://community.cloudera.com/t5/Archives-of-Support-Questions/how-to-force-delete-topic-from-kafka/m-p/214534#M72075 <P>Is topic deletion enabled at the broker level (delete.topic.enable=true) in the entire cluster, and did you restart it if you did enable it? </P><P>Maybe since the disk is full, Kafka and related services are refusing to start. Have you verified there are such processes running on the machine? </P><P>The nuclear, manual option would be to delete the topic data from the broker, but you must also purge the Zookeeper records for this topic</P> Sat, 02 Dec 2017 07:22:07 GMT JordanMoore 2017-12-02T07:22:07Z https://community.cloudera.com/t5/Archives-of-Support-Questions/how-to-force-delete-topic-from-kafka/m-p/214533#M72074 <P>we do the following steps in order to delete the topic - <STRONG>hgpo.llo.prmt.processed</STRONG></P><P>but even after <STRONG>12 hours</STRONG> topics folders still not deleted from /var/kafka/kafka-logs</P><P>note - we set - <STRONG><EM>delete.topic.enable=true</EM></STRONG></P><PRE>hkafka01 kafka-logs]# /usr/hdp/current/kafka-broker/bin/kafka-topics.sh --zookeeper master01:2181 --alter --topic hgpo.llo.prmt.processed--config retention.ms=1000 WARNING: Altering topic configuration from this script has been deprecated and may be removed in future releases. Going forward, please use kafka-configs.sh for this functionality Updated config for topic "hgpo.llo.prmt.processedd" kafka01 kafka-logs]# /usr/hdp/current/kafka-broker/bin/kafka-topics.sh --zookeeper master01:2181 --delete --topic hgpo.llo.prmt.processed Topic hgpo.llo.prmt.processed is already marked for deletion.</PRE><P>how to force the topic deletion ?</P><P>on kafka machine ( production machine ) , we see that: ( <STRONG>no free space</STRONG> )</P><PRE>/dev/sdb 15500450528 15500434144 0 100% /var/kafka</PRE><P>and under <STRONG>/var/kafka/kafka-logs , </STRONG>we still see all topic folders (huge size) as example: ( down )</P><P>so is it possible just to remove these folders as example - by <STRONG>rm -rf </STRONG><STRONG> hgpo.llo.prmt.processed-28</STRONG> ?</P><P>under<STRONG> </STRONG><STRONG>/var/kafka/kafka-logs</STRONG> we have many topic folders as :</P><PRE>117G hgpo.llo.prmt.processed-28 117G hgpo.llo.prmt.processed-29 117G hgpo.llo.prmt.processed-3 117G hgpo.llo.prmt.processed-30 117G hgpo.llo.prmt.processed-31 117G hgpo.llo.prmt.processed-32 . . . . . </PRE> Fri, 01 Dec 2017 19:17:11 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/how-to-force-delete-topic-from-kafka/m-p/214533#M72074 mike_bronson7 2017-12-01T19:17:11Z https://community.cloudera.com/t5/Archives-of-Support-Questions/how-to-force-delete-topic-from-kafka/m-p/214534#M72075 <P>Is topic deletion enabled at the broker level (delete.topic.enable=true) in the entire cluster, and did you restart it if you did enable it? </P><P>Maybe since the disk is full, Kafka and related services are refusing to start. Have you verified there are such processes running on the machine? </P><P>The nuclear, manual option would be to delete the topic data from the broker, but you must also purge the Zookeeper records for this topic</P> Sat, 02 Dec 2017 07:22:07 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/how-to-force-delete-topic-from-kafka/m-p/214534#M72075 JordanMoore 2017-12-02T07:22:07Z https://community.cloudera.com/t5/Archives-of-Support-Questions/how-to-force-delete-topic-from-kafka/m-p/214535#M72076 <DIV>@Jordan - regrading what you said purge the Zookeeper records :</DIV><DIV>do you mean to delete the topic by rmr /brokers/topics/hgpo.llo.prmt.processed from the Zc server<BR /> </DIV> Sun, 03 Dec 2017 03:00:23 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/how-to-force-delete-topic-from-kafka/m-p/214535#M72076 mike_bronson7 2017-12-03T03:00:23Z