xueqiang wang created KAFKA-1646:
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Summary: Improve consumer read performance for Windows
Key: KAFKA-1646
URL: https://issues.apache.org/jira/browse/KAFKA-1646
Project: Kafka
Issue Type: Improvement
Components: log
Affects Versions: 0.8.1.1
Environment: Windows
Reporter: xueqiang wang
Assignee: Jay Kreps
This patch is for Window platform only. In Windows platform, if there are more
than one replicas writing to disk, the segment log files will not be consistent
in disk and then consumer reading performance will be dropped down greatly.
This fix allocates more disk spaces when rolling a new segment, and then it
will improve the consumer reading performance in NTFS file system.
This patch doesn't affect file allocation of other filesystems, for it only
adds statements like 'if(Os.iswindow)' or adds methods used on Windows.
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