# Schema Registry **URL:** https://forum.confluent.io/c/schema-registry/19.md?page=2 [Latest](https://forum.confluent.io/latest.md) · [Categories](https://forum.confluent.io/categories.md) **Page:** 3 --- ## [Schema Registry Could Not Be Started](https://forum.confluent.io/t/schema-registry-could-not-be-started/9069)
**Author:** [@f2498985](https://forum.confluent.io/u/f2498985)\ **Replies:** 6\ **Last updated:** [15 November 2023 22:15 UTC](https://forum.confluent.io/t/schema-registry-could-not-be-started/9069 "2023-11-15T22:15:13Z")
Hello. I have build Schema Registry from github sources, trying to start and got \[2023-11-13 19:39:49,099\] INFO Adding listener with HTTP/2: NamedURI{uri=http://0.0.0.0:8081, name='null'} (io.confluent.rest.Application… --- ## [Nested static namespace causes SchemaParseException: Can't redefine](https://forum.confluent.io/t/nested-static-namespace-causes-schemaparseexception-cant-redefine/9085)
**Author:** [@emojl](https://forum.confluent.io/u/emojl)\ **Replies:** 0\ **Last updated:** [15 November 2023 07:24 UTC](https://forum.confluent.io/t/nested-static-namespace-causes-schemaparseexception-cant-redefine/9085 "2023-11-15T07:24:28Z")
Hi, I have a problem with generating java classes from avro schema with avro-maven-plugin. I get org.apache.avro.SchemaParseException: can't redefine. My schemas is auto registered from cdc with debezium and then insert… --- ## [Schema Registry Inter-Instance Service Discovery](https://forum.confluent.io/t/schema-registry-inter-instance-service-discovery/8963)
**Author:** [@kimulimuli](https://forum.confluent.io/u/kimulimuli)\ **Replies:** 1\ **Last updated:** [15 November 2023 06:34 UTC](https://forum.confluent.io/t/schema-registry-inter-instance-service-discovery/8963 "2023-11-15T06:34:59Z")
Dear Community, re-posting my question here as my employer decided to block Slack which makes it impossible to continue my previous thread on the Slack Channel. We are deploying Schema Registry in a multi-dc, active/sta… --- ## [Confluent SchemaRegistry throwing io.confluent.kafka.schemaregistry.rest.exceptions.RestUnknownLeaderException: Leader not known Error](https://forum.confluent.io/t/confluent-schemaregistry-throwing-io-confluent-kafka-schemaregistry-rest-exceptions-restunknownleaderexception-leader-not-known-error/7166)
**Author:** [@keyurbitw](https://forum.confluent.io/u/keyurbitw)\ **Replies:** 2\ **Last updated:** [10 November 2023 02:48 UTC](https://forum.confluent.io/t/confluent-schemaregistry-throwing-io-confluent-kafka-schemaregistry-rest-exceptions-restunknownleaderexception-leader-not-known-error/7166 "2023-11-10T02:48:42Z")
Hi, We have been using Schema Registry in HA mode with 3 replicas. We have started seeing io.confluent.kafka.schemaregistry.rest.exceptions.RestUnknownLeaderException: Leader not known. error intermittently. We have … --- ## [Standalone confluent schema registry not starting](https://forum.confluent.io/t/standalone-confluent-schema-registry-not-starting/8884)
**Author:** [@ravikumaraju](https://forum.confluent.io/u/ravikumaraju)\ **Replies:** 5\ **Last updated:** [24 October 2023 13:52 UTC](https://forum.confluent.io/t/standalone-confluent-schema-registry-not-starting/8884 "2023-10-24T13:52:20Z")
I see below error in my /var/log when I start Standalone schema registry. I have the Apache Zookeeper and Kafka server up and running. I have java location in profile path and java home variables. \[Oct 5 16:18:18 chn-v… --- ## [Registering a schema via C#](https://forum.confluent.io/t/registering-a-schema-via-c/8173)
**Author:** [@MeeJosh](https://forum.confluent.io/u/MeeJosh)\ **Replies:** 1\ **Last updated:** [18 September 2023 06:32 UTC](https://forum.confluent.io/t/registering-a-schema-via-c/8173 "2023-09-18T06:32:37Z")
I’m creating some simple console apps to learn Kafka and running into issues when trying to register a schema. I set up my environment in docking using this: version: '2' services: zookeeper: image: confluentinc/… --- ## [Serializing A C# Class To Pass To Schema Registry?](https://forum.confluent.io/t/serializing-a-c-class-to-pass-to-schema-registry/8227)
**Author:** [@MeeJosh](https://forum.confluent.io/u/MeeJosh)\ **Replies:** 1\ **Last updated:** [18 September 2023 06:27 UTC](https://forum.confluent.io/t/serializing-a-c-class-to-pass-to-schema-registry/8227 "2023-09-18T06:27:28Z")
I’d like to serialize a number of C# classes and place them on the Schema Registry as opposed to auto-registering, what is the simplest way to take a C# class and manually registering it? It doesn’t like the format I ge… --- ## [Confluent 7.4 schema registry](https://forum.confluent.io/t/confluent-7-4-schema-registry/8323)
**Author:** [@vibi](https://forum.confluent.io/u/vibi)\ **Replies:** 1\ **Last updated:** [18 September 2023 06:26 UTC](https://forum.confluent.io/t/confluent-7-4-schema-registry/8323 "2023-09-18T06:26:00Z")
The local commands are intended for a single-node development environment only, NOT for production usage. See more: https://docs.confluent.io/current/cli/index.html As of Confluent Platform 8.0, Java 8 is no longer supp… --- ## [Schema Registry Url for curl usage](https://forum.confluent.io/t/schema-registry-url-for-curl-usage/8624)
**Author:** [@LBalsa](https://forum.confluent.io/u/LBalsa)\ **Replies:** 1\ **Last updated:** [18 September 2023 06:24 UTC](https://forum.confluent.io/t/schema-registry-url-for-curl-usage/8624 "2023-09-18T06:24:39Z")
Hi all, this feels like a silly question but I’m unclear if I am using the correct url to upload schemas to the confluent hosted schema registry. I plan to version control them and have CI upload them rather than the pro… --- ## [Schema Registry private access](https://forum.confluent.io/t/schema-registry-private-access/8671)
**Author:** [@jais61](https://forum.confluent.io/u/jais61)\ **Replies:** 1\ **Last updated:** [18 September 2023 06:23 UTC](https://forum.confluent.io/t/schema-registry-private-access/8671 "2023-09-18T06:23:03Z")
Hello! Having going private using a dedicated clusters and private links I was surprised that we needed to go public when using the Schema Registry. Are there any ways of having this registry private? Best Regards Jan … --- ## [Failed to get Kafka cluster id while creating Schema Registry pod](https://forum.confluent.io/t/failed-to-get-kafka-cluster-id-while-creating-schema-registry-pod/8680)
**Author:** [@Habib](https://forum.confluent.io/u/Habib)\ **Replies:** 1\ **Last updated:** [18 September 2023 06:21 UTC](https://forum.confluent.io/t/failed-to-get-kafka-cluster-id-while-creating-schema-registry-pod/8680 "2023-09-18T06:21:54Z")
We are creating Confluent cluster in Openshift and using CFK for the same. Our Kafka brokers , Zookeeper is running fine but while starting the Schema Registry we are getting the below error. Can someone please help. \[… --- ## [Register proto schema with REST api](https://forum.confluent.io/t/register-proto-schema-with-rest-api/7503)
**Author:** [@KenHuffman](https://forum.confluent.io/u/KenHuffman)\ **Replies:** 3\ **Last updated:** [14 September 2023 07:29 UTC](https://forum.confluent.io/t/register-proto-schema-with-rest-api/7503 "2023-09-14T07:29:42Z")
The REST api supports registering schema versions for protobuf file if the body of the POST request is a JSON version of the proto file. Where can I find the utility that converts .proto files to .json content? Some Con… --- ## [Data Quality Rules](https://forum.confluent.io/t/data-quality-rules/8663)
**Author:** [@chKK16](https://forum.confluent.io/u/chKK16)\ **Replies:** 1\ **Last updated:** [14 September 2023 07:25 UTC](https://forum.confluent.io/t/data-quality-rules/8663 "2023-09-14T07:25:45Z")
Hello everyone, I hope you’re all doing well. I wanted to reach out to the community because I’m relatively new to Kafka, and I’ve been exploring data quality rules. While I’ve made some progress, I still have a few que… --- ## [Specify Schema Version When Registering](https://forum.confluent.io/t/specify-schema-version-when-registering/7803)
**Author:** [@kcab](https://forum.confluent.io/u/kcab)\ **Replies:** 1\ **Last updated:** [30 August 2023 15:47 UTC](https://forum.confluent.io/t/specify-schema-version-when-registering/7803 "2023-08-30T15:47:34Z")
From what we understand, every time a schema is successfully updated, its version is also increments. Is it possible for us to define the version of a schema when we are updating it? We want to do this so that we could d… --- ## [How to enable validation of Avro default fields in Confluent Cloud Schema Registry?](https://forum.confluent.io/t/how-to-enable-validation-of-avro-default-fields-in-confluent-cloud-schema-registry/7930)
**Author:** [@Ben](https://forum.confluent.io/u/Ben)\ **Replies:** 9\ **Last updated:** [30 August 2023 15:45 UTC](https://forum.confluent.io/t/how-to-enable-validation-of-avro-default-fields-in-confluent-cloud-schema-registry/7930 "2023-08-30T15:45:33Z")
I know how to enable validation of Avro defaults in Schema Registry on Confluent Platform. You just need to set: SCHEMA\_REGISTRY\_SCHEMA\_PROVIDERS\_AVRO\_VALIDATE\_DEFAULTS: 'true' in your cp-schema-registry container (or… --- ## [Schema-registry rebalancing](https://forum.confluent.io/t/schema-registry-rebalancing/8456)
**Author:** [@Norsu296](https://forum.confluent.io/u/Norsu296)\ **Replies:** 0\ **Last updated:** [3 August 2023 15:19 UTC](https://forum.confluent.io/t/schema-registry-rebalancing/8456 "2023-08-03T15:19:44Z")
Hello, I have problem with schema-registry, I run it on clean kubernetes cluster where installed is only Kafka Cluster, zookeeper and schema-registry. Brokers are running, I can connect to them and send/read messages fro… --- ## [Maven plugin to register tags and business metadata](https://forum.confluent.io/t/maven-plugin-to-register-tags-and-business-metadata/8177)
**Author:** [@onlymohan](https://forum.confluent.io/u/onlymohan)\ **Replies:** 0\ **Last updated:** [26 June 2023 18:31 UTC](https://forum.confluent.io/t/maven-plugin-to-register-tags-and-business-metadata/8177 "2023-06-26T18:31:03Z")
Hi, I am trying to use the latest confluent maven plugin to registry subjects with tags and business meta. Invocation is successful, but I don’t see the tags in confluent console. I am following the guidelines mentione… --- ## [Schema validation - can't produce a record when validation is switched on: record rejected by the record interceptor](https://forum.confluent.io/t/schema-validation-cant-produce-a-record-when-validation-is-switched-on-record-rejected-by-the-record-interceptor/7836)
**Author:** [@josephh](https://forum.confluent.io/u/josephh)\ **Replies:** 1\ **Last updated:** [22 June 2023 16:01 UTC](https://forum.confluent.io/t/schema-validation-cant-produce-a-record-when-validation-is-switched-on-record-rejected-by-the-record-interceptor/7836 "2023-06-22T16:01:54Z")
Hi, I’m working through producing avro messages and applying message validation - against schema - at message produce time. But I am seeing an error i don’t really understand. I’m doing the following. Run Confluent … --- ## [UI not showing tags associated to schema fields](https://forum.confluent.io/t/ui-not-showing-tags-associated-to-schema-fields/8057)
**Author:** [@jkothamb](https://forum.confluent.io/u/jkothamb)\ **Replies:** 0\ **Last updated:** [8 June 2023 17:39 UTC](https://forum.confluent.io/t/ui-not-showing-tags-associated-to-schema-fields/8057 "2023-06-08T17:39:22Z")
Hi, for some schema fields, UI is not showing tags associated to it even though the REST API clearly shows the associated tag. Please see the screenshot below and response of the REST API for one such schema field called… --- ## [Command Center error: No Schema Registry clusters found](https://forum.confluent.io/t/command-center-error-no-schema-registry-clusters-found/7850)
**Author:** [@josephh](https://forum.confluent.io/u/josephh)\ **Replies:** 4\ **Last updated:** [17 May 2023 19:31 UTC](https://forum.confluent.io/t/command-center-error-no-schema-registry-clusters-found/7850 "2023-05-17T19:31:59Z")
I’m running Confluent local, multi-broker setup. I’ve followed the instructions to turn do with schema reg at Broker-side Schema ID Validation | Confluent Documentation, including setting confluent.schema.registry.url… --- ## [Unable to execute CURL command on Schema Registry REST API](https://forum.confluent.io/t/unable-to-execute-curl-command-on-schema-registry-rest-api/7811)
**Author:** [@ranjeetborate](https://forum.confluent.io/u/ranjeetborate)\ **Replies:** 0\ **Last updated:** [9 May 2023 11:07 UTC](https://forum.confluent.io/t/unable-to-execute-curl-command-on-schema-registry-rest-api/7811 "2023-05-09T11:07:40Z")
I’ve 3 instances of Schema Registry up and running on a unix server with specific port numbers specified corresponding to the listener parameter in each of the schema-registry.properties file. When I try to trigger the A… --- ## [Protobuf serializer using Dynamic message](https://forum.confluent.io/t/protobuf-serializer-using-dynamic-message/7766)
**Author:** [@pkishork](https://forum.confluent.io/u/pkishork)\ **Replies:** 1\ **Last updated:** [5 May 2023 11:56 UTC](https://forum.confluent.io/t/protobuf-serializer-using-dynamic-message/7766 "2023-05-05T11:56:02Z")
I am trying to use probuf serializer provided by confluent . I am constructing Dynamic message and publishing it to kafka cluster . But am not able to consume same message using kafka consumer . Does producing and con… --- ## [Register a complex AVRO schema](https://forum.confluent.io/t/register-a-complex-avro-schema/7749)
**Author:** [@talgat-aitchanov-kn](https://forum.confluent.io/u/talgat-aitchanov-kn)\ **Replies:** 0\ **Last updated:** [2 May 2023 10:17 UTC](https://forum.confluent.io/t/register-a-complex-avro-schema/7749 "2023-05-02T10:17:15Z")
Hi team, Could you help me out to register reference based AVRO schema into schema registry? I am using next gradle plugin with its configuration build.gradle... id 'com.github.davidmc24.gradle.plugin.avro'… --- ## [Kafka - Schema Registry (Json) Example - Local Machine](https://forum.confluent.io/t/kafka-schema-registry-json-example-local-machine/7725)
**Author:** [@gopinathreddy.d](https://forum.confluent.io/u/gopinathreddy.d)\ **Replies:** 0\ **Last updated:** [27 April 2023 17:11 UTC](https://forum.confluent.io/t/kafka-schema-registry-json-example-local-machine/7725 "2023-04-27T17:11:55Z")
I am newbie to Kafka & trying to learn and implement.I am looking for Kafka - Schema Registry using Json example to configure & run in Windows Local Machine. Can anyone please help me how to configure & implement it. i … --- ## [Vulnerabilities in schema registry](https://forum.confluent.io/t/vulnerabilities-in-schema-registry/7602)
**Author:** [@Srinivas\_Ganta](https://forum.confluent.io/u/Srinivas_Ganta)\ **Replies:** 1\ **Last updated:** [11 April 2023 14:37 UTC](https://forum.confluent.io/t/vulnerabilities-in-schema-registry/7602 "2023-04-11T14:37:12Z")
Hi, I am working on schema registry vulnerabilities. There is a list of Vulnerabilities we found. we are unable to find in which schema registry version, the below vulnerabilities are going to be fixed. CVE-2020-36518 … --- ## [Issue with json schema registry](https://forum.confluent.io/t/issue-with-json-schema-registry/7586)
**Author:** [@iheb090](https://forum.confluent.io/u/iheb090)\ **Replies:** 0\ **Last updated:** [7 April 2023 10:20 UTC](https://forum.confluent.io/t/issue-with-json-schema-registry/7586 "2023-04-07T10:20:57Z")
i work with spring cloud stream kafka , i have an issue with with json schema registry I use the version 7.1.4 of confluent dependency , i use topic name strategy so when i save the schema by this pattern topicname-valu… --- ## [Docker schema-registry config for acl](https://forum.confluent.io/t/docker-schema-registry-config-for-acl/7541)
**Author:** [@sevenouts](https://forum.confluent.io/u/sevenouts)\ **Replies:** 2\ **Last updated:** [4 April 2023 05:14 UTC](https://forum.confluent.io/t/docker-schema-registry-config-for-acl/7541 "2023-04-04T05:14:14Z")
I’m trying to use ACL for schema registry. The requirements say i must have some form of authentication in place. So i decided to use HTTP basic authentication. When i look at its documentation: https://docs.confluent.… --- ## [Cp-schema-registry docker config for Basic HTTP authentication](https://forum.confluent.io/t/cp-schema-registry-docker-config-for-basic-http-authentication/7521)
**Author:** [@sevenouts](https://forum.confluent.io/u/sevenouts)\ **Replies:** 0\ **Last updated:** [29 March 2023 08:20 UTC](https://forum.confluent.io/t/cp-schema-registry-docker-config-for-basic-http-authentication/7521 "2023-03-29T08:20:47Z")
Hi everyone, I’m trying to config schema registry using docker for basic http authentication Based on this documentation: HTTP Basic Authentication | Confluent Documentation i have to do this setting export SCHEM… --- ## [Spring boot/Quarkus/Schema registry example](https://forum.confluent.io/t/spring-boot-quarkus-schema-registry-example/7401)
**Author:** [@mhadziom](https://forum.confluent.io/u/mhadziom)\ **Replies:** 0\ **Last updated:** [13 March 2023 12:42 UTC](https://forum.confluent.io/t/spring-boot-quarkus-schema-registry-example/7401 "2023-03-13T12:42:33Z")
Hi. I just become aware that link from “Where next?” section in Java EE and Spring Boot, where usage of Schema registry should be demonstrated, actually links it to the same page again: I cannot find proper java nor … --- ## [Schema Registry Setup works from when app runs in local but fails when app is deployed to docker](https://forum.confluent.io/t/schema-registry-setup-works-from-when-app-runs-in-local-but-fails-when-app-is-deployed-to-docker/7394)
**Author:** [@mrdj](https://forum.confluent.io/u/mrdj)\ **Replies:** 0\ **Last updated:** [12 March 2023 06:16 UTC](https://forum.confluent.io/t/schema-registry-setup-works-from-when-app-runs-in-local-but-fails-when-app-is-deployed-to-docker/7394 "2023-03-12T06:16:12Z")
I created a kafka service in docker which internally uses three images. Below are the images confluentinc/cp-zookeeper:latest confluentinc/cp-kafka:latest confluentinc/cp-schema-registry:latest My docker-compose.yml … [Previous page](https://forum.confluent.io/c/schema-registry/19.md?page=1) [Next page](https://forum.confluent.io/c/schema-registry/19.md?page=3)