[
https://issues.apache.org/jira/browse/KAFKA-7037?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16701690#comment-16701690
]
ASF GitHub Bot commented on KAFKA-7037:
---------------------------------------
omkreddy closed pull request #5193: KAFKA-7037: Improve the topic command
description of `--topic` option
URL: https://github.com/apache/kafka/pull/5193
This is a PR merged from a forked repository.
As GitHub hides the original diff on merge, it is displayed below for
the sake of provenance:
As this is a foreign pull request (from a fork), the diff is supplied
below (as it won't show otherwise due to GitHub magic):
diff --git a/core/src/main/scala/kafka/admin/TopicCommand.scala
b/core/src/main/scala/kafka/admin/TopicCommand.scala
index 9d284521a6e..37dd233913b 100755
--- a/core/src/main/scala/kafka/admin/TopicCommand.scala
+++ b/core/src/main/scala/kafka/admin/TopicCommand.scala
@@ -308,8 +308,9 @@ object TopicCommand extends Logging {
val deleteOpt = parser.accepts("delete", "Delete a topic")
val alterOpt = parser.accepts("alter", "Alter the number of partitions,
replica assignment, and/or configuration for the topic.")
val describeOpt = parser.accepts("describe", "List details for the given
topics.")
- val topicOpt = parser.accepts("topic", "The topic to be create, alter or
describe. Can also accept a regular " +
- "expression except for --create
option")
+ val topicOpt = parser.accepts("topic", "The topic to create, alter,
describe or delete. It also accepts a regular " +
+ "expression, except for --create
option. Put topic name in double quotes and use the '\\' prefix " +
+ "to escape regular expression
symbols; e.g. \"test\\.topic\".")
.withRequiredArg
.describedAs("topic")
.ofType(classOf[String])
diff --git a/core/src/test/scala/unit/kafka/admin/TopicCommandTest.scala
b/core/src/test/scala/unit/kafka/admin/TopicCommandTest.scala
index a469f8efe04..5d2d873425f 100644
--- a/core/src/test/scala/unit/kafka/admin/TopicCommandTest.scala
+++ b/core/src/test/scala/unit/kafka/admin/TopicCommandTest.scala
@@ -278,4 +278,37 @@ class TopicCommandTest extends ZooKeeperTestHarness with
Logging with RackAwareT
assertTrue(output.contains(topic))
assertFalse(output.contains(Topic.GROUP_METADATA_TOPIC_NAME))
}
+
+ @Test
+ def testTopicOperationsWithRegexSymbolInTopicName(): Unit = {
+ val topic1 = "test.topic"
+ val topic2 = "test-topic"
+ val escapedTopic = "\"test\\.topic\""
+ val unescapedTopic = "test.topic"
+ val numPartitionsOriginal = 1
+
+ // create brokers
+ val brokers = List(0, 1, 2)
+ TestUtils.createBrokersInZk(zkClient, brokers)
+
+ // create the topics
+ val createOpts = new TopicCommandOptions(Array("--partitions",
numPartitionsOriginal.toString,
+ "--replication-factor", "1", "--topic", topic1))
+ TopicCommand.createTopic(zkClient, createOpts)
+ val createOpts2 = new TopicCommandOptions(Array("--partitions",
numPartitionsOriginal.toString,
+ "--replication-factor", "1", "--topic", topic2))
+ TopicCommand.createTopic(zkClient, createOpts2)
+
+ val escapedCommandOpts = new TopicCommandOptions(Array("--topic",
escapedTopic))
+ val unescapedCommandOpts = new TopicCommandOptions(Array("--topic",
unescapedTopic))
+
+ // topic actions with escaped regex do not affect 'test-topic'
+ // topic actions with unescaped topic affect 'test-topic'
+
+
assertFalse(TestUtils.grabConsoleOutput(TopicCommand.describeTopic(zkClient,
escapedCommandOpts)).contains(topic2))
+
assertTrue(TestUtils.grabConsoleOutput(TopicCommand.describeTopic(zkClient,
unescapedCommandOpts)).contains(topic2))
+
+ assertFalse(TestUtils.grabConsoleOutput(TopicCommand.deleteTopic(zkClient,
escapedCommandOpts)).contains(topic2))
+ assertTrue(TestUtils.grabConsoleOutput(TopicCommand.deleteTopic(zkClient,
unescapedCommandOpts)).contains(topic2))
+ }
}
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> delete topic command replaces '+' from the topic name which leads incorrect
> topic deletion
> ------------------------------------------------------------------------------------------
>
> Key: KAFKA-7037
> URL: https://issues.apache.org/jira/browse/KAFKA-7037
> Project: Kafka
> Issue Type: Bug
> Affects Versions: 0.10.1.0, 1.0.0
> Reporter: Sandeep Nemuri
> Assignee: Vahid Hashemian
> Priority: Major
> Fix For: 2.2.0
>
>
> 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}
> delete topic replaces '+' from the topic name
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