I am in the early stages of exploring the use of Kafka for large-scale application I am authoring. Generally, the documentation has been pretty good and quite pleased with getting things set-up in a couple of hours. However, I am attempting to run the QuickStart using CLI to locally confirm that producers/consumers works through Zookeeper and Kafka. I get the following exception when a producer connects to Zookeeper. Subsequently, I am unable to send/receive message. The exception is:
[2012-12-19 10:38:15,993] INFO Got user-level KeeperException when processing sessionid:0x13bb3cfbcde0000 type:create cxid:0x1 zxid:0xfffffffffffffffe txntype:unknown reqpath:n/a Error Path:/brokers/ids Error:KeeperErrorCode = NoNode for /brokers/ids (org.apache.zookeeper.server.PrepRequestProcessor) [2012-12-19 10:38:16,032] INFO Got user-level KeeperException when processing sessionid:0x13bb3cfbcde0000 type:create cxid:0x2 zxid:0xfffffffffffffffe txntype:unknown reqpath:n/a Error Path:/brokers Error:KeeperErrorCode = NoNode for /brokers (org.apache.zookeeper.server.PrepRequestProcessor)
I would appreciate it if some could point me in the right direction. Kind regards,
Chris Alexander Technical Architect and Engineer Gravy, Inc.
And then reran the FAQ QuickStart. Maybe newly created directories finally recursively inherited my permissions.
I see /tmp/kafka-logs/test0/00000000000000000000.kafka but unable to open the file in a standard editor to view what has been logged - file is binary. What is the recommend application to view the topic log?
From: "Jun Rao" <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Sent: Wednesday, December 19, 2012 11:53:56 AM Subject: Re: Unable To Run QuickStart From CLI
These exceptions are at the info level and are normal. Did you see data in the kafka broker log?
On Wed, Dec 19, 2012 at 7:59 AM, Christopher Alexander < [EMAIL PROTECTED]> wrote:
Thanks Jun and Joel. I've got my Kafka development instance up and running. I do have a few questions through:
1. In /bin I note that there is kafka-server-stop.sh and zookeeper-server-stop.sh. I assume the scripts should be executed in this order for a clean shutdown? 2. Clearly absent are shutdown scripts for the producer and consumer. Does this reflect the overall design decisions about Kafka's push/pull model wherein any type of producer or consumer shutdown will not impact the broker? If so, no need for an explicit shutdown script. Is that correct?
From: "Joel Koshy" <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Sent: Wednesday, December 19, 2012 2:11:22 PM Subject: Re: Unable To Run QuickStart From CLI
You will need to use the ConsoleConsumer (see the bin directory) or create a Java/Scala consumer connector. On Wed, Dec 19, 2012 at 9:41 AM, Christopher Alexander < [EMAIL PROTECTED]> wrote:
1. Yes. 2. Producer and consumer are libraries used in client services. So, the client app needs to call the appropriate shutdown method in the producer and consumer library.
On Thu, Dec 20, 2012 at 7:28 AM, Christopher Alexander < [EMAIL PROTECTED]> wrote:
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