# Schema Registry fails to start **URL:** \ **Category:** Schema Registry\ **Created:** [6 March 2023 03:55 UTC](https://forum.confluent.io/t/schema-registry-fails-to-start/7350 "2023-03-06T03:55:02Z")\ **Posts on this page:** 14\ **Page:** 1
**Author:** ![hjconfka](https://avatars.discourse-cdn.com/v4/letter/h/b2d939/32.png) [@hjconfka](https://forum.confluent.io/u/hjconfka)\ **Post date:** [6 March 2023 03:55 UTC](https://forum.confluent.io/t/schema-registry-fails-to-start/7350/1 "2023-03-06T03:55:02Z")
Im using Confluent kafka 6.1.0 with JDK 8 and trying to start the services with confluent local services start but getting “Schema Registry failed to start” with the error: io.confluent.kafka.schemaregistry.exceptions.SchemaRegistryInitializationException: io.confluent.kafka.schemaregistry.exceptions.SchemaRegistryTimeoutException: Timed out waiting for join group to complete Caused by: io.confluent.kafka.schemaregistry.exceptions.SchemaRegistryTimeoutException: Timed out waiting for join group to complete This is a standalone local env. Any idea what might be causing this error? ---
**Author:** ![keyurbitw](https://avatars.discourse-cdn.com/v4/letter/k/e36b37/32.png) [@keyurbitw](https://forum.confluent.io/u/keyurbitw)\ **Post date:** [6 March 2023 06:05 UTC](https://forum.confluent.io/t/schema-registry-fails-to-start/7350/2 "2023-03-06T06:05:01Z")
Can you please ensure connectivity to Kafka Brokers? Also can you please validate `kafkastore.bootstrap.servers` points to the correct broker address? ---
**Author:** ![hjconfka](https://avatars.discourse-cdn.com/v4/letter/h/b2d939/32.png) [@hjconfka](https://forum.confluent.io/u/hjconfka)\ **Post date:** [6 March 2023 15:09 UTC](https://forum.confluent.io/t/schema-registry-fails-to-start/7350/3 "2023-03-06T15:09:05Z")
Yes the settings are: confluent-6.1.0/etc/schema-registry/schema-registry.properties kafkastore.bootstrap.servers=PLAINTEXT://:9092 confluent-6.1.0/etc/kafka/server.properties listeners=PLAINTEXT://:9092 ---
**Author:** ![mmuehlbeyer](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.confluent.io/mmuehlbeyer/32/1088_2.png) [@mmuehlbeyer](https://forum.confluent.io/u/mmuehlbeyer)\ **Post date:** [6 March 2023 15:15 UTC](https://forum.confluent.io/t/schema-registry-fails-to-start/7350/4 "2023-03-06T15:15:55Z")
hey @hjconfka any errors in brokers logs? best, michael ---
**Author:** ![hjconfka](https://avatars.discourse-cdn.com/v4/letter/h/b2d939/32.png) [@hjconfka](https://forum.confluent.io/u/hjconfka)\ **Post date:** [6 March 2023 15:18 UTC](https://forum.confluent.io/t/schema-registry-fails-to-start/7350/5 "2023-03-06T15:18:49Z")
Just ran the start service again with the following: $ confluent local services start The local commands are intended for a single-node development environment only, NOT for production usage. [https://docs.confluent.io/current/cli/index.html](https://docs.confluent.io/current/cli/index.html) Using CONFLUENT\_CURRENT: /tmp/confluent.184303 Starting ZooKeeper ZooKeeper is [UP] Starting Kafka Kafka is [UP] Starting Schema Registry Schema Registry is [UP] Starting Kafka REST Kafka REST is [UP] Starting Connect Error: Connect failed to start $ confluent local services status The local commands are intended for a single-node development environment only, NOT for production usage. [https://docs.confluent.io/current/cli/index.html](https://docs.confluent.io/current/cli/index.html) Using CONFLUENT\_CURRENT: /tmp/confluent.184303 Connect is [DOWN] Control Center is [DOWN] Kafka is [DOWN] Kafka REST is [UP] ksqlDB Server is [DOWN] Schema Registry is [UP] ZooKeeper is [UP] in the connect.log: org.apache.kafka.connect.errors.ConnectException: Failed to connect to and describe Kafka cluster. Check worker’s broker connection and security properties. at org.apache.kafka.connect.util.ConnectUtils.lookupKafkaClusterId(ConnectUtils.java:72) at org.apache.kafka.connect.util.ConnectUtils.lookupKafkaClusterId(ConnectUtils.java:53) at org.apache.kafka.connect.cli.ConnectDistributed.startConnect(ConnectDistributed.java:95) at org.apache.kafka.connect.cli.ConnectDistributed.main(ConnectDistributed.java:78) Caused by: java.util.concurrent.ExecutionException: org.apache.kafka.common.errors.TimeoutException: Call(callName=listNodes, deadlineMs=1678115641688, tries=1, nextAllowedTryMs=1678115641789) timed out at 1678115641689 after 1 attempt(s) at org.apache.kafka.common.internals.KafkaFutureImpl.wrapAndThrow(KafkaFutureImpl.java:45) at org.apache.kafka.common.internals.KafkaFutureImpl.access$000(KafkaFutureImpl.java:32) at org.apache.kafka.common.internals.KafkaFutureImpl$SingleWaiter.await(KafkaFutureImpl.java:89) at org.apache.kafka.common.internals.KafkaFutureImpl.get(KafkaFutureImpl.java:260) at org.apache.kafka.connect.util.ConnectUtils.lookupKafkaClusterId(ConnectUtils.java:66) … 3 more Caused by: org.apache.kafka.common.errors.TimeoutException: Call(callName=listNodes, deadlineMs=1678115641688, tries=1, nextAllowedTryMs=1678115641789) timed out at 1678115641689 after 1 attempt(s) Caused by: org.apache.kafka.common.errors.TimeoutException: Timed out waiting for a node assignment. Call: listNodes ---
**Author:** ![mmuehlbeyer](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.confluent.io/mmuehlbeyer/32/1088_2.png) [@mmuehlbeyer](https://forum.confluent.io/u/mmuehlbeyer)\ **Post date:** [6 March 2023 15:42 UTC](https://forum.confluent.io/t/schema-registry-fails-to-start/7350/6 "2023-03-06T15:42:47Z")
hey as the Kafka broker does not start I would recommend to start checking the log of the broker. Then proceed further to the other services. best, michael ---
**Author:** ![hjconfka](https://avatars.discourse-cdn.com/v4/letter/h/b2d939/32.png) [@hjconfka](https://forum.confluent.io/u/hjconfka)\ **Post date:** [6 March 2023 15:51 UTC](https://forum.confluent.io/t/schema-registry-fails-to-start/7350/7 "2023-03-06T15:51:05Z")
Hi Michael, Thx for your quick response. Here are the errors I see in the server.log: [2023-03-06 07:11:43,559] INFO [Admin Manager on Broker 0]: Error processing alter configs request for resource ConfigResource(type=TOPIC, name=‘\_confluent\_balancer\_broker\_samples’), config ArrayBuffer(AlterConfigOp{opType=SET, configEntry=ConfigEntry(name=cleanup.policy, value=delete, source=UNKNOWN, isSensitive=false, isReadOnly=false, synonyms=)}, AlterConfigOp{opType=SET, configEntry=ConfigEntry(name=retention.ms, value=12000000, source=UNKNOWN, isSensitive=false, isReadOnly=false, synonyms=)}) (kafka.server.AdminManager) org.apache.kafka.common.errors.UnknownTopicOrPartitionException: The topic ‘\_confluent\_balancer\_broker\_samples’ does not exist. [2023-03-06 07:11:43,564] ERROR Skip updating configuration of topic \_confluent\_balancer\_broker\_samples due to exception. (com.linkedin.kafka.cruisecontrol.SbkTopicUtils) java.lang.RuntimeException: org.apache.kafka.common.errors.UnknownTopicOrPartitionException: The topic ‘\_confluent\_balancer\_broker\_samples’ does not exist. at com.linkedin.kafka.cruisecontrol.SbkTopicUtils.ensureTopicCreated(SbkTopicUtils.java:121) at com.linkedin.kafka.cruisecontrol.SbkTopicUtils.checkTopicPropertiesMaybeCreate(SbkTopicUtils.java:53) at com.linkedin.kafka.cruisecontrol.monitor.sampling.KafkaSampleStore.configure(KafkaSampleStore.java:150) at com.linkedin.kafka.cruisecontrol.config.KafkaCruiseControlConfig.getConfiguredInstance(KafkaCruiseControlConfig.java:1367) at io.confluent.databalancer.startup.StartupComponents$Builder.build(StartupComponents.java:91) at io.confluent.databalancer.startup.CruiseControlStartable.startUp(CruiseControlStartable.java:73) at io.confluent.databalancer.ConfluentDataBalanceEngine.doStart(ConfluentDataBalanceEngine.java:425) at io.confluent.databalancer.ConfluentDataBalanceEngine.doStart(ConfluentDataBalanceEngine.java:412) at io.confluent.databalancer.ConfluentDataBalanceEngine.lambda$onActivation$3(ConfluentDataBalanceEngine.java:151) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at com.linkedin.kafka.cruisecontrol.common.KafkaCruiseControlThreadFactory.lambda$newThread$1(KafkaCruiseControlThreadFactory.java:43) at java.lang.Thread.run(Thread.java:748) … [2023-03-06 07:11:48,118] ERROR [KafkaServer id=0] Fatal error during KafkaServer startup. Prepare to shutdown (kafka.server.KafkaServer) java.lang.NoSuchMethodError: org.apache.kafka.connect.util.KafkaBasedLog.(Ljava/lang/String;Ljava/util/Map;Ljava/util/Map;Ljava/util/function/Supplier;Lorg/apache/kafka/connect/util/Callback;Lorg/apache/kafka/common/utils/Time;Ljava/util/function/Consumer;)V at io.confluent.license.LicenseStore.createKafkaBasedLog(LicenseStore.java:201) at io.confluent.license.LicenseStore.setupAndCreateKafkaBasedLog(LicenseStore.java:175) at io.confluent.license.LicenseStore.(LicenseStore.java:120) at io.confluent.license.validator.ConfluentLicenseValidator$KafkaLicenseStore.(ConfluentLicenseValidator.java:382) at io.confluent.license.validator.ConfluentLicenseValidator.createLicenseStore(ConfluentLicenseValidator.java:217) at io.confluent.license.validator.ConfluentLicenseValidator.start(ConfluentLicenseValidator.java:122) at kafka.server.KafkaServer.startup(KafkaServer.scala:677) at kafka.server.KafkaServerStartable.startup(KafkaServerStartable.scala:44) at kafka.Kafka$.main(Kafka.scala:82) at kafka.Kafka.main(Kafka.scala) … [2023-03-06 07:11:51,236] ERROR Exiting Kafka. (kafka.server.KafkaServerStartable) WARN [Producer clientId=confluent-telemetry-reporter-local-producer] Connection to node 0 (/127.0.1.1:9092) could not be established. Broker may not be available. (org.apache.kafka.clients.NetworkClient) ---
**Author:** ![mmuehlbeyer](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.confluent.io/mmuehlbeyer/32/1088_2.png) [@mmuehlbeyer](https://forum.confluent.io/u/mmuehlbeyer)\ **Post date:** [7 March 2023 06:29 UTC](https://forum.confluent.io/t/schema-registry-fails-to-start/7350/8 "2023-03-07T06:29:54Z")
hmm anything else in the logs? not getting the exact error from the snippets above. which confluent version did you use? 6.1? best, michael ---
**Author:** ![hjconfka](https://avatars.discourse-cdn.com/v4/letter/h/b2d939/32.png) [@hjconfka](https://forum.confluent.io/u/hjconfka)\ **Post date:** [7 March 2023 14:49 UTC](https://forum.confluent.io/t/schema-registry-fails-to-start/7350/9 "2023-03-07T14:49:58Z")
Hi Michael, yes it is 6.1.0 installed on a Linux OS. I’m not seeing any other errors in the server.log. Sometimes NoSuchMethodError indicates the wrong method signature which might mean older/wrong class file or possibly wrong jar file - just guessing at this point 🙂 . ---
**Author:** ![mmuehlbeyer](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.confluent.io/mmuehlbeyer/32/1088_2.png) [@mmuehlbeyer](https://forum.confluent.io/u/mmuehlbeyer)\ **Post date:** [7 March 2023 14:58 UTC](https://forum.confluent.io/t/schema-registry-fails-to-start/7350/10 "2023-03-07T14:58:53Z")
Hi @hjconfka basically if you don’t have any constraints forcing you to use confluent 6.1 I would at least recommend to use Confluent platform 7.3.x best, michael ---
**Author:** ![hjconfka](https://avatars.discourse-cdn.com/v4/letter/h/b2d939/32.png) [@hjconfka](https://forum.confluent.io/u/hjconfka)\ **Post date:** [7 March 2023 15:29 UTC](https://forum.confluent.io/t/schema-registry-fails-to-start/7350/11 "2023-03-07T15:29:53Z")
Thx Micheal, I’ll try it with 7.3.2 and update this thread… ---
**Author:** ![hjconfka](https://avatars.discourse-cdn.com/v4/letter/h/b2d939/32.png) [@hjconfka](https://forum.confluent.io/u/hjconfka)\ **Post date:** [8 March 2023 21:13 UTC](https://forum.confluent.io/t/schema-registry-fails-to-start/7350/12 "2023-03-08T21:13:13Z")
Thx Michael, 7.3.2 seems to be working well with JDK 11. I started using the Spool Dir Connector which is working but can’t seem to find the docs for any specific Configuration Properties. Any idea where I might be able to find it… ---
**Author:** ![mmuehlbeyer](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.confluent.io/mmuehlbeyer/32/1088_2.png) [@mmuehlbeyer](https://forum.confluent.io/u/mmuehlbeyer)\ **Post date:** [9 March 2023 08:17 UTC](https://forum.confluent.io/t/schema-registry-fails-to-start/7350/13 "2023-03-09T08:17:00Z")
ok cool you’re talking about this one? > **[Spool Dir Source Connector for Confluent Platform | Confluent Documentation](https://docs.confluent.io/kafka-connectors/spooldir/current/overview.html)** > > Get started with the Spool Dir Source connector for Confluent Platform. best, michael ---
**Author:** ![hjconfka](https://avatars.discourse-cdn.com/v4/letter/h/b2d939/32.png) [@hjconfka](https://forum.confluent.io/u/hjconfka)\ **Post date:** [9 March 2023 18:20 UTC](https://forum.confluent.io/t/schema-registry-fails-to-start/7350/14 "2023-03-09T18:20:51Z")
Yes, but for some reason they’ve decided to put it here instead: [https://docs.confluent.io/kafka-connectors/spooldir/current/connectors/csv\_source\_connector.html#file-system](https://docs.confluent.io/kafka-connectors/spooldir/current/connectors/csv_source_connector.html#file-system)