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Honghai Chen edited comment on KAFKA-1646 at 3/6/15 9:01 AM: ------------------------------------------------------------- Updated reviewboard against branch origin/0.8.1 Hi, [~jkreps] [~junrao] [~jghoman]] please check the review at https://reviews.apache.org/r/29091/diff/7/ , appreciate. was (Author: waldenchen): Updated reviewboard against branch origin/0.8.1 Please check the review at https://reviews.apache.org/r/29091/diff/7/ [~jkreps] > 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: xueqiang wang > Labels: newbie, patch > Attachments: Improve consumer read performance for Windows.patch, > KAFKA-1646-truncate-off-trailing-zeros-on-broker-restart-if-bro.patch, > KAFKA-1646_20141216_163008.patch, KAFKA-1646_20150306_005526.patch > > > 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. -- This message was sent by Atlassian JIRA (v6.3.4#6332)