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Colin McCabe resolved KAFKA-16905. ---------------------------------- Resolution: Fixed > Thread block in describe topics API in Admin Client > --------------------------------------------------- > > Key: KAFKA-16905 > URL: https://issues.apache.org/jira/browse/KAFKA-16905 > Project: Kafka > Issue Type: Bug > Components: clients > Affects Versions: 3.8.0, 3.9.0 > Reporter: Apoorv Mittal > Assignee: Apoorv Mittal > Priority: Major > Fix For: 3.8.0 > > > The threads blocks while running admin client's descirbe topics API. > > {code:java} > "kafka-admin-client-thread | adminclient-3" #114 daemon prio=5 os_prio=31 > cpu=6.57ms elapsed=417.17s tid=0x00000001364fc200 nid=0x13403 waiting on > condition [0x00000002bb419000] > java.lang.Thread.State: WAITING (parking) > at jdk.internal.misc.Unsafe.park(java.base@17.0.7/Native Method) > - parking to wait for <0x0000000773804828> (a > java.util.concurrent.CompletableFuture$Signaller) > at > java.util.concurrent.locks.LockSupport.park(java.base@17.0.7/LockSupport.java:211) > at > java.util.concurrent.CompletableFuture$Signaller.block(java.base@17.0.7/CompletableFuture.java:1864) > at > java.util.concurrent.ForkJoinPool.unmanagedBlock(java.base@17.0.7/ForkJoinPool.java:3463) > at > java.util.concurrent.ForkJoinPool.managedBlock(java.base@17.0.7/ForkJoinPool.java:3434) > at > java.util.concurrent.CompletableFuture.waitingGet(java.base@17.0.7/CompletableFuture.java:1898) > at > java.util.concurrent.CompletableFuture.get(java.base@17.0.7/CompletableFuture.java:2072) > at > org.apache.kafka.common.internals.KafkaFutureImpl.get(KafkaFutureImpl.java:165) > at > org.apache.kafka.clients.admin.KafkaAdminClient.handleDescribeTopicsByNamesWithDescribeTopicPartitionsApi(KafkaAdminClient.java:2324) > at > org.apache.kafka.clients.admin.KafkaAdminClient.describeTopics(KafkaAdminClient.java:2122) > at org.apache.kafka.clients.admin.Admin.describeTopics(Admin.java:311) > at > io.confluent.kafkarest.controllers.TopicManagerImpl.describeTopics(TopicManagerImpl.java:155) > at > io.confluent.kafkarest.controllers.TopicManagerImpl.lambda$listTopics$2(TopicManagerImpl.java:76) > at > io.confluent.kafkarest.controllers.TopicManagerImpl$$Lambda$1925/0x0000000800891448.apply(Unknown > Source) > at > java.util.concurrent.CompletableFuture$UniCompose.tryFire(java.base@17.0.7/CompletableFuture.java:1150) > at > java.util.concurrent.CompletableFuture.postComplete(java.base@17.0.7/CompletableFuture.java:510) > at > java.util.concurrent.CompletableFuture.complete(java.base@17.0.7/CompletableFuture.java:2147) > at > io.confluent.kafkarest.common.KafkaFutures.lambda$toCompletableFuture$0(KafkaFutures.java:45) > at > io.confluent.kafkarest.common.KafkaFutures$$Lambda$1909/0x0000000800897528.accept(Unknown > Source) > at > org.apache.kafka.common.internals.KafkaFutureImpl.lambda$whenComplete$2(KafkaFutureImpl.java:107) > at > org.apache.kafka.common.internals.KafkaFutureImpl$$Lambda$1910/0x0000000800897750.accept(Unknown > Source) > at > java.util.concurrent.CompletableFuture.uniWhenComplete(java.base@17.0.7/CompletableFuture.java:863) > at > java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(java.base@17.0.7/CompletableFuture.java:841) > at > java.util.concurrent.CompletableFuture.postComplete(java.base@17.0.7/CompletableFuture.java:510) > at > java.util.concurrent.CompletableFuture.complete(java.base@17.0.7/CompletableFuture.java:2147) > at > org.apache.kafka.common.internals.KafkaCompletableFuture.kafkaComplete(KafkaCompletableFuture.java:39) > at > org.apache.kafka.common.internals.KafkaFutureImpl.complete(KafkaFutureImpl.java:122) > at > org.apache.kafka.clients.admin.KafkaAdminClient$4.handleResponse(KafkaAdminClient.java:2106) > at > org.apache.kafka.clients.admin.KafkaAdminClient$AdminClientRunnable.handleResponses(KafkaAdminClient.java:1370) > at > org.apache.kafka.clients.admin.KafkaAdminClient$AdminClientRunnable.processRequests(KafkaAdminClient.java:1523) > at > org.apache.kafka.clients.admin.KafkaAdminClient$AdminClientRunnable.run(KafkaAdminClient.java:1446) > at java.lang.Thread.run(java.base@17.0.7/Thread.java:833) {code} -- This message was sent by Atlassian Jira (v8.20.10#820010)