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https://issues.apache.org/jira/browse/KAFKA-202?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13185842#comment-13185842
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Jay Kreps commented on KAFKA-202:
---------------------------------
Hey Neha, 0.8 doesn't build for me and is missing a few files in the patch. Did
those get missed in the checkin?
[info] == core-kafka / compile ==
[info] Source analysis: 134 new/modified, 0 indirectly invalidated, 0 removed.
[info] Compiling main sources...
[error]
/Users/jkreps/work/kafka-git/core/src/main/scala/kafka/network/SocketServer.scala:45:
not found: type RequestChannel
[error] val requestChannel = new RequestChannel(numProcessorThreads,
maxQueuedRequests)
[error] ^
[error]
/Users/jkreps/work/kafka-git/core/src/main/scala/kafka/network/SocketServer.scala:190:
not found: type RequestChannel
[error] val requestChannel: RequestChannel,
[error] ^
[error]
/Users/jkreps/work/kafka-git/core/src/main/scala/kafka/network/SocketServer.scala:301:
not found: value RequestChannel
[error] val req = RequestChannel.Request(processor = id, requestKey =
key, request = request, start = time.nanoseconds)
[error] ^
[error]
/Users/jkreps/work/kafka-git/core/src/main/scala/kafka/server/KafkaServer.scala:26:
RequestChannel is not a member of kafka.network
[error] import kafka.network.{SocketServerStats, SocketServer, RequestChannel}
[error] ^
[error]
/Users/jkreps/work/kafka-git/core/src/main/scala/kafka/server/KafkaServer.scala:40:
not found: type KafkaRequestHandlerPool
[error] var requestHandlerPool: KafkaRequestHandlerPool = null
[error] ^
[error]
/Users/jkreps/work/kafka-git/core/src/main/scala/kafka/server/KafkaServer.scala:69:
not found: type KafkaRequestHandlerPool
[error] requestHandlerPool = new
KafkaRequestHandlerPool(socketServer.requestChannel, new
KafkaApis(logManager).handle, config.numIoThreads)
[error] ^
[error] 6 errors found
[info] == core-kafka / compile ==
[error] Error running compile: Compilation failed
[info]
[info] Total time: 21 s, completed Jan 13, 2012 12:46:07 PM
[info]
[info] Total session time: 24 s, completed Jan 13, 2012 12:46:07 PM
[error] Error during build
> Make the request processing in kafka asynchonous
> ------------------------------------------------
>
> Key: KAFKA-202
> URL: https://issues.apache.org/jira/browse/KAFKA-202
> Project: Kafka
> Issue Type: New Feature
> Reporter: Jay Kreps
> Assignee: Jay Kreps
> Fix For: 0.8
>
> Attachments: KAFKA-202-v2.patch, KAFKA-202-v3.patch,
> KAFKA-202-v4.patch, KAFKA-202-v5.patch, KAFKA-202-v6.patch,
> KAFKA-48-socket-server-refactor-draft.patch
>
>
> We need to handle long-lived requests to support replication. To make this
> work we need to make the processing mechanism asynchronous from the network
> threads.
> To accomplish this we will retain the existing pool of network threads but
> add a new pool of request handling threads. These will do all the disk I/O.
> There will be a queue mechanism to transfer requests to and from this
> secondary pool.
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