INFO NetworkClient:819 - [AdminClient clientId=adminclient-1] Disconnecting from node -1 due to socket connection setup timeout. The timeout value is 27930 ms. 2023-05-11 13:58:54 INFO AdminMetadataManager:235 - [AdminClient clientId=adminclient-1] Metadata update failed

[YLChen-007]

I can not run curl -X GET  http://localhost:8080/topics in bridge container!

So i cannot get kafka info from bridge.

bridge container log:

Kafka Bridge configuration:
#Bridge configuration
bridge.id=my-bridge
#Kafka common properties
kafka.bootstrap.servers=my-cluster-kafka-bootstrap:9092
kafka.security.protocol=PLAINTEXT
#Apache Kafka AdminClient
#Apache Kafka Producer
#Apache Kafka Consumer
#HTTP configuration
http.host=0.0.0.0
http.port=8080
http.cors.enabled=false
http.cors.allowedOrigins=
http.cors.allowedMethods=
++ dirname /opt/strimzi/bin/docker/../kafka_bridge_run.sh

• MYPATH=/opt/strimzi/bin/docker/..
• '[' -z -Dlog4j2.configurationFile=file:/opt/strimzi/custom-config/log4j2.properties ']'
• JAVA_OPTS=' -Dvertx.cacheDirBase=/tmp/vertx-cache -Djava.security.egd=file:/dev/./urandom'
• '[' -n '' ']'
• exec java -Dvertx.cacheDirBase=/tmp/vertx-cache -Djava.security.egd=file:/dev/./urandom -Dlog4j2.configurationFile=file:/opt/strimzi/custom-config/log4j2.properties -classpath '/opt/strimzi/bin/docker/../../libs/*' io.strimzi.kafka.bridge.Application --config-file=/tmp/kafka-bridge.properties
  2023-05-11 13:46:40 INFO Application:60 - Strimzi Kafka Bridge 0.24.0 is starting
  2023-05-11 13:46:40 INFO Application:80 - Bridge configuration BridgeConfig(config={bridge.id=my-bridge},kafkaConfig=KafkaConfig(config={security.protocol=PLAINTEXT, bootstrap.servers=my-cluster-kafka-bootstrap:9092},consumerConfig=KafkaConsumerConfig(config={}),producerConfig=KafkaProducerConfig(config={}),adminConfig=KafkaAdminConfig(config={})),httpConfig=HttpConfig(config={http.cors.allowedOrigins=, http.port=8080, http.cors.allowedMethods=, http.cors.enabled=false, http.host=0.0.0.0}))
  2023-05-11 13:46:41 INFO HttpBridge:185 - Starting HTTP-Kafka bridge verticle...
  2023-05-11 13:46:41 INFO AdminClientConfig:376 - AdminClientConfig values:
  bootstrap.servers = [my-cluster-kafka-bootstrap:9092]
  client.dns.lookup = use_all_dns_ips
  client.id =
  connections.max.idle.ms = 300000
  default.api.timeout.ms = 60000
  metadata.max.age.ms = 300000
  metric.reporters = []
  metrics.num.samples = 2
  metrics.recording.level = INFO
  metrics.sample.window.ms = 30000
  receive.buffer.bytes = 65536
  reconnect.backoff.max.ms = 1000
  reconnect.backoff.ms = 50
  request.timeout.ms = 30000
  retries = 2147483647
  retry.backoff.ms = 100
  sasl.client.callback.handler.class = null
  sasl.jaas.config = null
  sasl.kerberos.kinit.cmd = /usr/bin/kinit
  sasl.kerberos.min.time.before.relogin = 60000
  sasl.kerberos.service.name = null
  sasl.kerberos.ticket.renew.jitter = 0.05
  sasl.kerberos.ticket.renew.window.factor = 0.8
  sasl.login.callback.handler.class = null
  sasl.login.class = null
  sasl.login.connect.timeout.ms = null
  sasl.login.read.timeout.ms = null
  sasl.login.refresh.buffer.seconds = 300
  sasl.login.refresh.min.period.seconds = 60
  sasl.login.refresh.window.factor = 0.8
  sasl.login.refresh.window.jitter = 0.05
  sasl.login.retry.backoff.max.ms = 10000
  sasl.login.retry.backoff.ms = 100
  sasl.mechanism = GSSAPI
  sasl.oauthbearer.clock.skew.seconds = 30
  sasl.oauthbearer.expected.audience = null
  sasl.oauthbearer.expected.issuer = null
  sasl.oauthbearer.jwks.endpoint.refresh.ms = 3600000
  sasl.oauthbearer.jwks.endpoint.retry.backoff.max.ms = 10000
  sasl.oauthbearer.jwks.endpoint.retry.backoff.ms = 100
  sasl.oauthbearer.jwks.endpoint.url = null
  sasl.oauthbearer.scope.claim.name = scope
  sasl.oauthbearer.sub.claim.name = sub
  sasl.oauthbearer.token.endpoint.url = null
  security.protocol = PLAINTEXT
  security.providers = null
  send.buffer.bytes = 131072
  socket.connection.setup.timeout.max.ms = 30000
  socket.connection.setup.timeout.ms = 10000
  ssl.cipher.suites = null
  ssl.enabled.protocols = [TLSv1.2, TLSv1.3]
  ssl.endpoint.identification.algorithm = https
  ssl.engine.factory.class = null
  ssl.key.password = null
  ssl.keymanager.algorithm = SunX509
  ssl.keystore.certificate.chain = null
  ssl.keystore.key = null
  ssl.keystore.location = null
  ssl.keystore.password = null
  ssl.keystore.type = JKS
  ssl.protocol = TLSv1.3
  ssl.provider = null
  ssl.secure.random.implementation = null
  ssl.trustmanager.algorithm = PKIX
  ssl.truststore.certificates = null
  ssl.truststore.location = null
  ssl.truststore.password = null
  ssl.truststore.type = JKS
  2023-05-11 13:46:41 INFO AppInfoParser:119 - Kafka version: 3.2.3
  2023-05-11 13:46:41 INFO AppInfoParser:120 - Kafka commitId: 50029d3ed8ba576f
  2023-05-11 13:46:41 INFO AppInfoParser:121 - Kafka startTimeMs: 1683812801686
  2023-05-11 13:46:41 INFO HttpBridge:103 - HTTP-Kafka Bridge started and listening on port 8080
  2023-05-11 13:46:41 INFO HttpBridge:104 - HTTP-Kafka Bridge bootstrap servers my-cluster-kafka-bootstrap:9092
  2023-05-11 13:46:41 INFO Application:127 - HTTP verticle instance deployed [58d80413-80b2-4e34-aa4d-4689d2bbcf67]
  2023-05-11 13:46:50 INFO NetworkClient:819 - [AdminClient clientId=adminclient-1] Disconnecting from node -1 due to socket connection setup timeout. The timeout value is 8245 ms.
  2023-05-11 13:47:08 INFO NetworkClient:819 - [AdminClient clientId=adminclient-1] Disconnecting from node -1 due to socket connection setup timeout. The timeout value is 18459 ms.
  2023-05-11 13:47:11 INFO AdminMetadataManager:235 - [AdminClient clientId=adminclient-1] Metadata update failed
  org.apache.kafka.common.errors.TimeoutException: Timed out waiting to send the call. Call: fetchMetadata
  2023-05-11 13:47:40 INFO NetworkClient:819 - [AdminClient clientId=adminclient-1] Disconnecting from node -1 due to socket connection setup timeout. The timeout value is 28544 ms.
  2023-05-11 13:47:41 INFO AdminMetadataManager:235 - [AdminClient clientId=adminclient-1] Metadata update failed
  org.apache.kafka.common.errors.TimeoutException: Timed out waiting to send the call. Call: fetchMetadata
  2023-05-11 13:48:10 INFO NetworkClient:819 - [AdminClient clientId=adminclient-1] Disconnecting from node -1 due to socket connection setup timeout. The timeout value is 28321 ms.
  2023-05-11 13:48:11 INFO AdminMetadataManager:235 - [AdminClient clientId=adminclient-1] Metadata update failed
  org.apache.kafka.common.errors.TimeoutException: Timed out waiting to send the call. Call: fetchMetadata
  2023-05-11 13:48:38 INFO NetworkClient:819 - [AdminClient clientId=adminclient-1] Disconnecting from node -1 due to socket connection setup timeout. The timeout value is 27232 ms.
  2023-05-11 13:48:41 INFO AdminMetadataManager:235 - [AdminClient clientId=adminclient-1] Metadata update failed
  org.apache.kafka.common.errors.TimeoutException: Timed out waiting to send the call. Call: fetchMetadata
  2023-05-11 13:49:11 INFO NetworkClient:819 - [AdminClient clientId=adminclient-1] Disconnecting from node -1 due to socket connection setup timeout. The timeout value is 29655 ms.
  2023-05-11 13:49:11 INFO AdminMetadataManager:235 - [AdminClient clientId=adminclient-1] Metadata update failed
  org.apache.kafka.common.errors.TimeoutException: Timed out waiting for a node assignment. Call: fetchMetadata
  2023-05-11 13:49:41 INFO NetworkClient:819 - [AdminClient clientId=adminclient-1] Disconnecting from node -1 due to socket connection setup timeout. The timeout value is 28878 ms.
  2023-05-11 13:49:41 INFO AdminMetadataManager:235 - [AdminClient clientId=adminclient-1] Metadata update failed

[scholzj]

The log suggests your connection to the Kafka cluster is not working. But without the full configurations of both he Bridge and the Kafka cluster, it is hard to say why.

[YLChen-007]

Thank your reply. I have solved this problem.

The bridge yaml has a wrong bootstrapServers setting. I change the bootstrapServers property as following , then it can work fine.

apiVersion: kafka.strimzi.io/v1beta2
kind: KafkaBridge
metadata:
name: my-bridge
spec:
replicas: 1
bootstrapServers: my-cluster-kafka-plain-bootstrap.my-cluster-operator-namespace.svc:9092
http:
port: 8080