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Posted to dev@kafka.apache.org by "Sandeep Nemuri (JIRA)" <ji...@apache.org> on 2018/06/11 11:55:00 UTC
[jira] [Created] (KAFKA-7037) Kafka doesn't allow to delete topic
with '+' in the name
Sandeep Nemuri created KAFKA-7037:
-------------------------------------
Summary: Kafka doesn't allow to delete topic with '+' in the name
Key: KAFKA-7037
URL: https://issues.apache.org/jira/browse/KAFKA-7037
Project: Kafka
Issue Type: Bug
Affects Versions: 0.10.1.0
Reporter: Sandeep Nemuri
{code:java}
[kafka@localhost ~]$ /usr/hdp/current/kafka-broker/bin/kafka-topics.sh --create --zookeeper `hostname`:2181 --replication-factor 1 --partitions 1 --topic test+topic
Created topic "test+topic".
[kafka@localhost ~]$ /usr/hdp/current/kafka-broker/bin/kafka-topics.sh --zookeeper `hostname`:2181 --list
__consumer_offsets
test+topic
[kafka@localhost~]$ /usr/hdp/current/kafka-broker/bin/kafka-topics.sh --zookeeper `hostname`:2181 --delete --topic test+topic
Error while executing topic command : Topic test+topic does not exist on ZK path ssltester-3.openstacklocal:2181
[2018-06-11 09:36:32,989] ERROR java.lang.IllegalArgumentException: Topic test+topic does not exist on ZK path ssltester-3.openstacklocal:2181
at kafka.admin.TopicCommand$.deleteTopic(TopicCommand.scala:166)
at kafka.admin.TopicCommand$.main(TopicCommand.scala:68)
at kafka.admin.TopicCommand.main(TopicCommand.scala)
(kafka.admin.TopicCommand$)
{code}
The major issue is that while executing a delete command kafka cli tool is removing the "+" symbol and deleting the incorrect topic. In below case if _"*test+topic"*_ is deleted kafka deletes _*testtopic.*_
{code:java}
[kafka@localhost~]$ /usr/hdp/current/kafka-broker/bin/kafka-topics.sh --create --zookeeper `hostname`:2181 --replication-factor 1 --partitions 1 --topic testtopic
Created topic "testtopic".
[kafka@localhost~]$ /usr/hdp/current/kafka-broker/bin/kafka-topics.sh --zookeeper `hostname`:2181 --topic test+topic --delete
Topic testtopic is marked for deletion.{code}
It seems create topic doesn't check for '+' and delete topic replaces '+' from the topic name.
Create Topic: [https://github.com/apache/kafka/blob/trunk/clients/src/main/java/org/apache/kafka/common/internals/Topic.java#L77-L85]
Delete Topic : [https://github.com/apache/kafka/blob/trunk/core/src/main/scala/kafka/consumer/TopicFilter.scala#L28-L33]
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