[jira] [Updated] (HDFS-3370) HDFS hardlink
[ https://issues.apache.org/jira/browse/HDFS-3370?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Liyin Tang updated HDFS-3370: - Attachment: HDFS-HardLink.pdf > HDFS hardlink > - > > Key: HDFS-3370 > URL: https://issues.apache.org/jira/browse/HDFS-3370 > Project: Hadoop HDFS > Issue Type: New Feature >Reporter: Hairong Kuang >Assignee: Liyin Tang > Attachments: HDFS-HardLink.pdf > > > We'd like to add a new feature hardlink to HDFS that allows harlinked files > to share data without copying. Currently we will support hardlinking only > closed files, but it could be extended to unclosed files as well. > Among many potential use cases of the feature, the following two are > primarily used in facebook: > 1. This provides a lightweight way for applications like hbase to create a > snapshot; > 2. This also allows an application like Hive to move a table to a different > directory without breaking current running hive queries. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (HDFS-3370) HDFS hardlink
[ https://issues.apache.org/jira/browse/HDFS-3370?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Liyin Tang updated HDFS-3370: - Attachment: (was: HDFS-HardLink.pdf) > HDFS hardlink > - > > Key: HDFS-3370 > URL: https://issues.apache.org/jira/browse/HDFS-3370 > Project: Hadoop HDFS > Issue Type: New Feature >Reporter: Hairong Kuang >Assignee: Liyin Tang > > We'd like to add a new feature hardlink to HDFS that allows harlinked files > to share data without copying. Currently we will support hardlinking only > closed files, but it could be extended to unclosed files as well. > Among many potential use cases of the feature, the following two are > primarily used in facebook: > 1. This provides a lightweight way for applications like hbase to create a > snapshot; > 2. This also allows an application like Hive to move a table to a different > directory without breaking current running hive queries. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (HDFS-3370) HDFS hardlink
[ https://issues.apache.org/jira/browse/HDFS-3370?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Liyin Tang updated HDFS-3370: - Attachment: HDFS-HardLink.pdf > HDFS hardlink > - > > Key: HDFS-3370 > URL: https://issues.apache.org/jira/browse/HDFS-3370 > Project: Hadoop HDFS > Issue Type: New Feature >Reporter: Hairong Kuang >Assignee: Liyin Tang > Attachments: HDFS-HardLink.pdf > > > We'd like to add a new feature hardlink to HDFS that allows harlinked files > to share data without copying. Currently we will support hardlinking only > closed files, but it could be extended to unclosed files as well. > Among many potential use cases of the feature, the following two are > primarily used in facebook: > 1. This provides a lightweight way for applications like hbase to create a > snapshot; > 2. This also allows an application like Hive to move a table to a different > directory without breaking current running hive queries. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (HDFS-3370) HDFS hardlink
[ https://issues.apache.org/jira/browse/HDFS-3370?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Liyin Tang updated HDFS-3370: - Attachment: (was: HDFS-HardLinks.pdf) > HDFS hardlink > - > > Key: HDFS-3370 > URL: https://issues.apache.org/jira/browse/HDFS-3370 > Project: Hadoop HDFS > Issue Type: New Feature >Reporter: Hairong Kuang >Assignee: Liyin Tang > > We'd like to add a new feature hardlink to HDFS that allows harlinked files > to share data without copying. Currently we will support hardlinking only > closed files, but it could be extended to unclosed files as well. > Among many potential use cases of the feature, the following two are > primarily used in facebook: > 1. This provides a lightweight way for applications like hbase to create a > snapshot; > 2. This also allows an application like Hive to move a table to a different > directory without breaking current running hive queries. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (HDFS-3370) HDFS hardlink
[ https://issues.apache.org/jira/browse/HDFS-3370?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Liyin Tang updated HDFS-3370: - Attachment: HDFS-HardLinks.pdf Attached HDFS-HardLinks design doc and any comments are so welcome. > HDFS hardlink > - > > Key: HDFS-3370 > URL: https://issues.apache.org/jira/browse/HDFS-3370 > Project: Hadoop HDFS > Issue Type: New Feature >Reporter: Hairong Kuang >Assignee: Liyin Tang > Attachments: HDFS-HardLinks.pdf > > > We'd like to add a new feature hardlink to HDFS that allows harlinked files > to share data without copying. Currently we will support hardlinking only > closed files, but it could be extended to unclosed files as well. > Among many potential use cases of the feature, the following two are > primarily used in facebook: > 1. This provides a lightweight way for applications like hbase to create a > snapshot; > 2. This also allows an application like Hive to move a table to a different > directory without breaking current running hive queries. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (HDFS-3370) HDFS hardlink
[ https://issues.apache.org/jira/browse/HDFS-3370?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Hairong Kuang updated HDFS-3370: Description: We'd like to add a new feature hardlink to HDFS that allows harlinked files to share data without copying. Currently we will support hardlinking only closed files, but it could be extended to unclosed files as well. Among many potential use cases of the feature, the following two are primarily used in facebook: 1. This provides a lightweight way for applications like hbase to create a snapshot; 2. This also allows an application like Hive to move a table to a different directory without breaking current running hive queries. was: We'd like to add a new feature to HDFS, hardlink, that allows harlinked files to share data without copying. Currently we will support hardlinking only closed files, but it could be extended to unclosed files as well. Among many potential use cases of feature, the following two are primarily used in facebook: 1. This provides a lightweight way for applications like hbase to create a snapshot; 2. This also allows an application like Hive to move a table to a different directory without breaking current running hive queries. > HDFS hardlink > - > > Key: HDFS-3370 > URL: https://issues.apache.org/jira/browse/HDFS-3370 > Project: Hadoop HDFS > Issue Type: New Feature >Reporter: Hairong Kuang >Assignee: Liyin Tang > > We'd like to add a new feature hardlink to HDFS that allows harlinked files > to share data without copying. Currently we will support hardlinking only > closed files, but it could be extended to unclosed files as well. > Among many potential use cases of the feature, the following two are > primarily used in facebook: > 1. This provides a lightweight way for applications like hbase to create a > snapshot; > 2. This also allows an application like Hive to move a table to a different > directory without breaking current running hive queries. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira