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https://issues.apache.org/jira/browse/KAFKA-552?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13471930#comment-13471930
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John Fung commented on KAFKA-552:
---------------------------------

* Attached the following files for reference:

File 1: system_test_output_1349730350.log - System Test console output file. It 
provides the sequence of all testing events with timestamps

File 2: testcase_0122_logs.tar.gz - This file has all log messages for ZK, 
brokers, producer, consumer in testcase_0122. This testcase has producer in 
sync mode and acks set to 1

File 3: testcase_0123_logs.tar.gz - This file has all log messages for ZK, 
brokers, producer, consumer in testcase_0123. This testcase has producer in 
async mode and acks set to 1


* The issue in this JIRA is as follows (the following is taken from 
testcase_0123):

1. In topic "test_2", the producer produces 6700 messages but consumer received 
6695 messages (as shown below).
2. In producer log, there are no Error messages related to the failure to send 
messages (producer log can be found in 
testcase_0123/logs/producer_performance-5/producer_performance.log in the 
attached tar file).
3. From the log segment checksums shown below, messages are replicated to all 
brokers across the cluster properly.


* Test Results shown for testcase_0123:

2012-10-08 14:31:31,156 - INFO - 
======================================================
2012-10-08 14:31:31,156 - INFO - validating data matched
2012-10-08 14:31:31,156 - INFO - 
======================================================
2012-10-08 14:31:31,241 - INFO - no. of unique messages on topic [test_1] sent 
from publisher  : 6800 (kafka_system_test_utils)
2012-10-08 14:31:31,241 - INFO - no. of unique messages on topic [test_1] 
received by consumer : 6800 (kafka_system_test_utils)
2012-10-08 14:31:31,315 - INFO - no. of unique messages on topic [test_2] sent 
from publisher  : 6700 (kafka_system_test_utils)
2012-10-08 14:31:31,315 - INFO - no. of unique messages on topic [test_2] 
received by consumer : 6695 (kafka_system_test_utils)
2012-10-08 14:31:31,315 - INFO - See 
/home/jfung/workspace_kafka/kafka_r1395693_502v7_sanity/system_test/replication_testsuite/testcase_
0123/logs/console_consumer-7/msg_id_missing_in_consumer.log for missing 
MessageID (kafka_system_test_utils)
2012-10-08 14:31:31,316 - INFO - 
================================================
2012-10-08 14:31:31,317 - INFO - validating broker log segment checksums
2012-10-08 14:31:31,317 - INFO - 
================================================
2012-10-08 14:31:38,996 - INFO - log segment files checksum :

{u'broker-1': {'test_1-0/00000000000000000000.kafka': '691684159',
               'test_1-1/00000000000000000000.kafka': '3681205309',
               'test_1-2/00000000000000000000.kafka': '3571211770',
               'test_2-0/00000000000000000000.kafka': '85299972',
               'test_2-1/00000000000000000000.kafka': '4115697331',
               'test_2-2/00000000000000000000.kafka': '3974179431'},
 u'broker-2': {'test_1-0/00000000000000000000.kafka': '691684159',
               'test_1-1/00000000000000000000.kafka': '3681205309',
               'test_1-2/00000000000000000000.kafka': '3571211770',
               'test_2-0/00000000000000000000.kafka': '85299972',
               'test_2-1/00000000000000000000.kafka': '4115697331',
               'test_2-2/00000000000000000000.kafka': '3974179431'},
 u'broker-3': {'test_1-0/00000000000000000000.kafka': '691684159',
               'test_1-1/00000000000000000000.kafka': '3681205309',
               'test_1-2/00000000000000000000.kafka': '3571211770',
               'test_2-0/00000000000000000000.kafka': '85299972',
               'test_2-1/00000000000000000000.kafka': '4115697331',
               'test_2-2/00000000000000000000.kafka': '3974179431'}}


                
> No error messages logged for those failing-to-send messages from Producer
> -------------------------------------------------------------------------
>
>                 Key: KAFKA-552
>                 URL: https://issues.apache.org/jira/browse/KAFKA-552
>             Project: Kafka
>          Issue Type: Bug
>            Reporter: John Fung
>         Attachments: system_test_output_1349730350.log, 
> testcase_0122_logs.tar.gz, testcase_0123_logs.tar.gz
>
>


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