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Error while connecting to HDF Schema Registry "Unexpected character ('<' (code 60))"

Error while connecting to HDF Schema Registry "Unexpected character ('<' (code 60))"

New Contributor

We are using Debezium to connect to SQL Server as our Producer. When running connect-standalone.sh with the workers.properties config below, we are getting this error message:

Caused by: io.confluent.kafka.schemaregistry.client.rest.exceptions.RestClientException: Unexpected character ('<' (code 60)): expected a valid value (number, String, array, object, 'true', 'false' or 'null')


This is what our registry.log file says:

INFO [2019-07-08 14:31:34.685] [dw-22] c.h.r.s.w.RewriteUriFilter - Forwarding request [com.hortonworks.registries.auth.server.AuthenticationFilter$1@4031172] to [/api/v1/confluent]

WARN [2019-07-08 14:31:34.689] [dw-22] c.h.r.a.s.AuthenticationFilter - Authentication exception: GSSException: Failure unspecified at GSS-API level (Mechanism level: Request is a replay (34))


And this is what registry.out says:

10.61.101.55 - - [08/Jul/2019:18:31:34 +0000] "POST /subjects/staging.dbo.table-key/versions HTTP/1.1" 401 319 "-" "Java/1.8.0_112" 10

10.61.101.55 - - [08/Jul/2019:18:31:34 +0000] "POST /subjects/staging.dbo.table-key/versions HTTP/1.1" 403 478 "-" "Java/1.8.0_112" 63


worker.properties contents:

offset.storage.file.filename=/tmp/connect.offsets

client.id=test_sqlserver-dbhistory

bootstrap.servers=:6667

offset.flush.interval.ms=10000

rest.port=10082

rest.host.name=

rest.advertised.port=10082

rest.advertised.host.name=


	
internal.key.converter=org.apache.kafka.connect.json.JsonConverter

internal.value.converter=org.apache.kafka.connect.json.JsonConverter

internal.key.converter.schemas.enable=false

internal.value.converter.schemas.enable=false




basic.auth.credentials.source=SASL_INHERIT




key.converter.schemas.enable=true

value.converter.schemas.enable=true




key.converter=io.confluent.connect.avro.AvroConverter

key.converter.schema.registry.url=http://:7788

value.converter=io.confluent.connect.avro.AvroConverter

value.converter.schema.registry.url=http://:7788



key.converter.basic.auth.credentials.source=USER_INFO

key.converter.schema.registry.basic.auth.user.info=user:pass


	
value.converter.basic.auth.credentials.source=USER_INTO

value.converter.schema.registry.basic.auth.user.info=user:pass


	
plugin.path=/usr/local/share/kafka/plugins/

security.protocol=PLAINTEXTSASL

security.inter.broker.protocol=PLAINTEXTSASL

sasl.mechanism=PLAIN
1 REPLY 1

Re: Error while connecting to HDF Schema Registry "Unexpected character ('<' (code 60))"

New Contributor

@blinton1  Any update how you solved this  ?