[jira] [Comment Edited] (FLINK-27962) KafkaSourceReader fails to commit consumer offsets for checkpoints

["Dmytro (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-27962?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17552327#comment-17552327 ] 

Dmytro edited comment on FLINK-27962 at 6/9/22 5:55 PM:
--------------------------------------------------------

[~martijnvisser], thank you for answering again!

The thing is the broker is available, {+}otherwise{+}:

Why does a Flink job restart always fixes the committing issue immediately?

Why are all other Flink jobs committing offsets successfully (using the same brokers) when the only one job cannot use the only one regularly crashed broker?

Why Storm Spouts can consume messages (using the same brokers and topics) without any broker problems for months?

It is weird and doesn't look like general issue with brokers.


was (Author: JIRAUSER290675):
[~martijnvisser], thank you for answering again!

The thing is the broker is available, {+}otherwise{+}:

Why does a Flink job restart always fixes the committing issue immediately?

Why are all other Flink jobs committing offsets successfully (using the same brokers) when the only one job cannot use the only one regularly crashed broker?

Why Storm ** Spouts can consume ** messages (using the same brokers and topics) without any broker problems for months?

It is weird and doesn't look like general issue with brokers.

> KafkaSourceReader fails to commit consumer offsets for checkpoints
> ------------------------------------------------------------------
>
>                 Key: FLINK-27962
>                 URL: https://issues.apache.org/jira/browse/FLINK-27962
>             Project: Flink
>          Issue Type: Bug
>          Components: Connectors / Kafka
>    Affects Versions: 1.15.0, 1.14.4
>            Reporter: Dmytro
>            Priority: Major
>
> The KafkaSourceReader works well for many hours, then fails and re-connects successfully, then continues to work some time. After the first three failures it hangs on "Offset commit failed" and never connected again. Restarting the Flink job does help and it works until the next "3 times fail".
> I am aware about [the note|https://nightlies.apache.org/flink/flink-docs-stable/docs/connectors/datastream/kafka/#consumer-offset-committing] that Kafka source does NOT rely on committed offsets for fault tolerance. Committing offset is only for exposing the progress of consumer and consuming group for monitoring.
> I agree if the failures are only periodic, but I would argue complete failures are unacceptable
> *Failed to commit consumer offsets for checkpoint:*
> {code:java}
> Caused by: org.apache.kafka.common.errors.CoordinatorNotAvailableException: The coordinator is not available.
> 2022-06-06 14:19:52,297 WARN  org.apache.flink.connector.kafka.source.reader.KafkaSourceReader [] - Failed to commit consumer offsets for checkpoint 464521
> org.apache.kafka.clients.consumer.RetriableCommitFailedException: Offset commit failed with a retriable exception. You should retry committing the latest consumed offsets.
> Caused by: org.apache.kafka.common.errors.CoordinatorNotAvailableException: The coordinator is not available.
> 2022-06-06 14:20:02,297 WARN  org.apache.flink.connector.kafka.source.reader.KafkaSourceReader [] - Failed to commit consumer offsets for checkpoint 464522
> org.apache.kafka.clients.consumer.RetriableCommitFailedException: Offset commit failed with a retriable exception. You should retry committing the latest consumed offsets.
> Caused by: org.apache.kafka.common.errors.CoordinatorNotAvailableException: The coordinator is not available.
> 2022-06-06 14:20:02,297 WARN  org.apache.flink.connector.kafka.source.reader.KafkaSourceReader [] - Failed to commit consumer offsets for checkpoint 464523
> org.apache.kafka.clients.consumer.RetriableCommitFailedException: Offset commit failed with a retriable exception. You should retry committing the latest consumed offsets
> ..... fails permanently until the job restart
>  {code}
> *Consumer Config:*
> {code:java}
> allow.auto.create.topics = true
> auto.commit.interval.ms = 5000
> auto.offset.reset = none
> bootstrap.servers = [test.host.net:9093]
> check.crcs = true
> client.dns.lookup = use_all_dns_ips
> client.id = test-client-id
> client.rack =
> connections.max.idle.ms = 180000
> default.api.timeout.ms = 60000
> enable.auto.commit = false
> exclude.internal.topics = true
> fetch.max.bytes = 52428800
> fetch.max.wait.ms = 500
> fetch.min.bytes = 1
> group.id = test-group-id
> group.instance.id = null
> heartbeat.interval.ms = 3000
> interceptor.classes = []
> internal.leave.group.on.close = true
> internal.throw.on.fetch.stable.offset.unsupported = false
> isolation.level = read_uncommitted
> key.deserializer = class org.apache.kafka.common.serialization.ByteArrayDeserializer
> max.partition.fetch.bytes = 1048576
> max.poll.interval.ms = 300000
> max.poll.records = 500
> metadata.max.age.ms = 180000
> metric.reporters = []
> metrics.num.samples = 2
> metrics.recording.level = INFO
> metrics.sample.window.ms = 30000
> partition.assignment.strategy = [class org.apache.kafka.clients.consumer.RangeAssignor]
> receive.buffer.bytes = 65536
> reconnect.backoff.max.ms = 1000
> reconnect.backoff.ms = 50
> request.timeout.ms = 60000
> retry.backoff.ms = 100
> sasl.client.callback.handler.class = null
> sasl.jaas.config = [hidden]
> 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 = class com.test.kafka.security.AzureAuthenticateCallbackHandler
> sasl.login.class = 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.mechanism = OAUTHBEARER
> security.protocol = SASL_SSL
> security.providers = null
> send.buffer.bytes = 131072
> session.timeout.ms = 30000
> socket.connection.setup.timeout.max.ms = 30000
> socket.connection.setup.timeout.ms = 10000
> ssl.cipher.suites = null
> ssl.enabled.protocols = [TLSv1.2]
> 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 = TLSv1.2
> 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
> value.deserializer = class org.apache.kafka.common.serialization.ByteArrayDeserializer {code}



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