On 10/18/2012 09:46 PM, Yang Ye (JIRA) wrote:
      [ 
https://issues.apache.org/jira/browse/KAFKA-267?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Yang Ye updated KAFKA-267:
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     Attachment: kafka-267-v4.patch


create a function "generateProducerData" for common use. It can generate for 
both sync and async mode, fixed and variable length, sequential id mode and 
non-sequential id mode.

The main structure of the fun() function of ProducerThread is shrinked to :

For each batch:
      For each topic:
            generateProducerData
            send
            sleep if required

Enhance ProducerPerformance to generate unique random Long value for payload
----------------------------------------------------------------------------

                 Key: KAFKA-267
                 URL: https://issues.apache.org/jira/browse/KAFKA-267
             Project: Kafka
          Issue Type: Improvement
            Reporter: John Fung
            Assignee: Yang Ye
         Attachments: kafka-267-v1.patch, kafka-267-v2.patch, 
kafka-267-v3.patch, kafka-267-v4.patch


This is achieved by:
1. Adding a new class UniqueRandom to shuffle a range of numbers.
2. An optional new argument "start-index" is added to specify the starting 
number of the range to be shuffled. If this argument is omitted, it is defaulted to 1. So 
it is backward compatible with the argument options.
3. The ending number of the range is the starting number + number of messages - 
1.
Other ProducerPerformance advancement:
1. producing to multiple topics
2. supporting multiple instances of producer performance ( and distinguishes 
them)
3. allowing waiting some time after sending a request
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the only reason to sleep is? that's not part of your function. But if you're batching your function needs to know where it left off sending and where it left off receiving ack's and then you run the batch with an error condition on those .... what i mean....generateProducerData, in a batch, should do as little and report as much as possible as quickly as possible. eh? batches fail because of records. no batcher runs serially when the code below is mt safe.

w

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