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https://issues.apache.org/jira/browse/SAMZA-560?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14317326#comment-14317326
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Navina Ramesh commented on SAMZA-560:
-------------------------------------
Let me give it a try.
> StreamAppender not working after upgrading kafka producer API
> -------------------------------------------------------------
>
> Key: SAMZA-560
> URL: https://issues.apache.org/jira/browse/SAMZA-560
> Project: Samza
> Issue Type: Bug
> Reporter: Yan Fang
> Assignee: Navina Ramesh
>
> After SAMZA-227, StreamAppender is not working. Digging into it a little,
> still can not figure it out.
> It throws exception with
> {code}
> Exception in thread "main" org.apache.kafka.common.errors.TimeoutException:
> Failed to update metadata after 60000 ms.
> {code}
> Log:
> {code}
> 2015-02-11 12:19:15 SamzaAppMaster$ [INFO] got container id:
> container_1423528474084_0023_02_000001
> 2015-02-11 12:19:15 KafkaSystemProducer [TRACE] Enqueueing message:
> log4j-log, OutgoingMessageEnvelope [systemStream=SystemStream [system=kafka2,
> stream=__samza_printout_task1_1_logs], keySerializerName=null,
> messageSerializerName=null, partitionKey=[B@155a6bd1, key=[B@155a6bd1,
> message=[B@635c714a].
> 2015-02-11 12:19:15 KafkaSystemProducer [INFO] Creating a new producer for
> system kafka2.
> 2015-02-11 12:19:15 ProducerConfig [INFO] ProducerConfig values:
> block.on.buffer.full = true
> retry.backoff.ms = 100
> buffer.memory = 33554432
> batch.size = 16384
> metrics.sample.window.ms = 30000
> metadata.max.age.ms = 300000
> receive.buffer.bytes = 32768
> timeout.ms = 30000
> max.in.flight.requests.per.connection = 1
> metric.reporters = []
> bootstrap.servers = [localhost:9092]
> client.id = samza_producer-printout_task1-1-1423685955347-0
> compression.type = none
> retries = 2147483647
> max.request.size = 1048576
> send.buffer.bytes = 131072
> acks = 1
> reconnect.backoff.ms = 10
> linger.ms = 0
> metrics.num.samples = 2
> metadata.fetch.timeout.ms = 60000
> 2015-02-11 12:19:15 KafkaProducer [TRACE] Starting the Kafka producer
> 2015-02-11 12:19:15 Metadata [DEBUG] Updated cluster metadata version 1 to
> Cluster(nodes = [Node(localhost, 9092)], partitions = [])
> 2015-02-11 12:19:15 KafkaProducer [DEBUG] Kafka producer started
> 2015-02-11 12:19:15 KafkaSystemProducer [DEBUG] Created a new producer for
> system kafka2.
> 2015-02-11 12:19:15 KafkaProducer [TRACE] Requesting metadata update for
> topic __samza_printout_task1_1_logs.
> 2015-02-11 12:19:15 Sender [DEBUG] Starting Kafka producer I/O thread.
> 2015-02-11 12:20:15 KafkaSystemProducer [TRACE] Enqueueing message:
> log4j-log, OutgoingMessageEnvelope [systemStream=SystemStream [system=kafka2,
> stream=__samza_printout_task1_1_logs], keySerializerName=null,
> messageSerializerName=null, partitionKey=[B@609548c3, key=[B@609548c3,
> message=[B@68dc2bbe].
> 2015-02-11 12:20:15 KafkaProducer [TRACE] Requesting metadata update for
> topic __samza_printout_task1_1_logs.
> {code}
> Also tested configuring two kafka systems in one job, which worked.
> Really can not figure it out why the KafkaProducer created through the
> StreamAppender does not work.
> Any ideas?
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