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[KAFKA-1610] Local modifications to collections generated from mapValues will be lost - Kafka - [issue]
...In our current Scala code base we have 40+ usages of mapValues, however it has an important semantic difference with map, which is that "map" creates a new map collection instance, while "ma...
http://issues.apache.org/jira/browse/KAFKA-1610    Author: Guozhang Wang, 2014-08-29, 18:04
[KAFKA-1617] Move Metadata Cache to TopicManager and handling of Offset Request to LogManager - Kafka - [issue]
...This is a follow-up of KAFKA-1583. In order to make Kafka APIs a pure stateless layer that just forwards different requests to the corresponding managers, there are still two tasks left:1. M...
http://issues.apache.org/jira/browse/KAFKA-1617    Author: Guozhang Wang, 2014-08-28, 22:00
Re: Request log is 300MB/hour - Kafka - [mail # user]
...Hello Edward,You can try to increase the maxWait and minBytes (currently they are 100 msand 1 byte from your logs) so that the consumer will not frequently try topull data if there is little...
   Author: Guozhang Wang, 2014-08-28, 20:03
[KAFKA-1420] Replace AdminUtils.createOrUpdateTopicPartitionAssignmentPathInZK with TestUtils.createTopic in unit tests - Kafka - [issue]
...This is a follow-up JIRA from KAFKA-1389.There are a bunch of places in the unit tests where we misuse AdminUtils.createOrUpdateTopicPartitionAssignmentPathInZK to create topics, where TestU...
http://issues.apache.org/jira/browse/KAFKA-1420    Author: Guozhang Wang, 2014-08-28, 19:08
Re: Review Request 25044: KAFKA-1611 - Improve system test configuration - Kafka - [mail # dev]
...This is an automatically generated e-mail. To reply, visit:https://reviews.apache.org/r/25044/#review51803Ship it!Thanks for the patch. LGTM.- Guozhang WangOn Aug. 26, 2014, 12:04 a.m., Gwen...
   Author: Guozhang Wang, 2014-08-28, 18:16
[KAFKA-1616] Purgatory Size and Num.Delayed.Request metrics are incorrect - Kafka - [issue]
...The request purgatory used two atomic integers "watched" and "unsatisfied" to record the purgatory size ( = watched + unsatisfied) and number of delayed requests ( = unsatisfied). But due to...
http://issues.apache.org/jira/browse/KAFKA-1616    Author: Guozhang Wang, 2014-08-28, 18:12
[expand - 1 more] - Re: Review Request 25155: Fix KAFKA-1616 - Kafka - [mail # dev]
...This is an automatically generated e-mail. To reply, visit:https://reviews.apache.org/r/25155/(Updated Aug. 28, 2014, 5:12 p.m.)Review request for kafka.Bugs: KAFKA-1616    ht...
   Author: Guozhang Wang, 2014-08-28, 17:12
[expand - 1 more] - Re: [DISCUSSION] Error Handling and Logging at Kafka - Kafka - [mail # dev]
...Thanks Joe / Gwen for the great input. I have commented on the pageaccordingly also.There is a ticket for the background connection issue: KAFKA-1592.On Wed, Aug 27, 2014 at 10:25 AM, Gwen S...
   Author: Guozhang Wang, 2014-08-27, 20:40
[KAFKA-1591] Clean-up Unnecessary stack trace in error/warn logs - Kafka - [issue]
...Some of the unnecessary stack traces in error / warning log entries can easily pollute the log files. Examples include KAFKA-1066, etc....
http://issues.apache.org/jira/browse/KAFKA-1591    Author: Guozhang Wang, 2014-08-27, 19:23
[KAFKA-1592] Some INFO level logging needs to be DEBUG - Kafka - [issue]
...Some of the INFO level log4j entries are not really useful, for example in SocketServer.Processor, due to metadata requests that reply on a separate and short-lived socket, the following log...
http://issues.apache.org/jira/browse/KAFKA-1592    Author: Guozhang Wang, 2014-08-27, 18:43
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