[jira] [Updated] (HADOOP-13293) add a special 0 byte input stream for empty blobs
[ https://issues.apache.org/jira/browse/HADOOP-13293?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Shilun Fan updated HADOOP-13293: Target Version/s: 3.5.0 (was: 3.4.0) > add a special 0 byte input stream for empty blobs > - > > Key: HADOOP-13293 > URL: https://issues.apache.org/jira/browse/HADOOP-13293 > Project: Hadoop Common > Issue Type: Sub-task > Components: fs/s3 >Affects Versions: 2.8.0 >Reporter: Steve Loughran >Priority: Minor > > S3a (and the other object stores) have a lot of IO going on, even for 0 byte > files. They don't need to: that's a special case which can be handled > locally. A special ZeroByteInputStream class could handle this for all the > object stores. > This isn't much of an optimization: code shouldn't normally need to go > through 0 byte files, but we see evidence it does sometimes happen. -- This message was sent by Atlassian Jira (v8.20.10#820010) - To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org
[jira] [Updated] (HADOOP-13293) add a special 0 byte input stream for empty blobs
[ https://issues.apache.org/jira/browse/HADOOP-13293?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Steve Loughran updated HADOOP-13293: Parent: HADOOP-18067 (was: HADOOP-17566) > add a special 0 byte input stream for empty blobs > - > > Key: HADOOP-13293 > URL: https://issues.apache.org/jira/browse/HADOOP-13293 > Project: Hadoop Common > Issue Type: Sub-task > Components: fs/s3 >Affects Versions: 2.8.0 >Reporter: Steve Loughran >Priority: Minor > > S3a (and the other object stores) have a lot of IO going on, even for 0 byte > files. They don't need to: that's a special case which can be handled > locally. A special ZeroByteInputStream class could handle this for all the > object stores. > This isn't much of an optimization: code shouldn't normally need to go > through 0 byte files, but we see evidence it does sometimes happen. -- This message was sent by Atlassian Jira (v8.20.1#820001) - To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org
[jira] [Updated] (HADOOP-13293) add a special 0 byte input stream for empty blobs
[ https://issues.apache.org/jira/browse/HADOOP-13293?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Steve Loughran updated HADOOP-13293: Parent: HADOOP-15220 (was: HADOOP-14831) > add a special 0 byte input stream for empty blobs > - > > Key: HADOOP-13293 > URL: https://issues.apache.org/jira/browse/HADOOP-13293 > Project: Hadoop Common > Issue Type: Sub-task > Components: fs/s3 >Affects Versions: 2.8.0 >Reporter: Steve Loughran >Priority: Minor > > S3a (and the other object stores) have a lot of IO going on, even for 0 byte > files. They don't need to: that's a special case which can be handled > locally. A special ZeroByteInputStream class could handle this for all the > object stores. > This isn't much of an optimization: code shouldn't normally need to go > through 0 byte files, but we see evidence it does sometimes happen. -- This message was sent by Atlassian JIRA (v7.6.3#76005) - To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org
[jira] [Updated] (HADOOP-13293) add a special 0 byte input stream for empty blobs
[ https://issues.apache.org/jira/browse/HADOOP-13293?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Steve Loughran updated HADOOP-13293: Parent Issue: HADOOP-14831 (was: HADOOP-13204) > add a special 0 byte input stream for empty blobs > - > > Key: HADOOP-13293 > URL: https://issues.apache.org/jira/browse/HADOOP-13293 > Project: Hadoop Common > Issue Type: Sub-task > Components: fs/s3 >Affects Versions: 2.8.0 >Reporter: Steve Loughran >Priority: Minor > > S3a (and the other object stores) have a lot of IO going on, even for 0 byte > files. They don't need to: that's a special case which can be handled > locally. A special ZeroByteInputStream class could handle this for all the > object stores. > This isn't much of an optimization: code shouldn't normally need to go > through 0 byte files, but we see evidence it does sometimes happen. -- This message was sent by Atlassian JIRA (v6.4.14#64029) - To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org
