[ https://issues.apache.org/jira/browse/HBASE-18824?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Xiang Li updated HBASE-18824: ----------------------------- Description: In http://hbase.apache.org/book.html#versions, 1. In chapter 27.2.4 Put bq. Doing a put always creates a new version of a cell, at a certain timestamp. {color:#205081}By default the system uses the server’s currentTimeMillis{color}, ... 2. In chapter 27.2.5 Delete bq. Deletes work by creating tombstone markers. For example, let’s suppose we want to delete a row. For this you can specify a version, or else {color:#205081}by default the currentTimeMillis is used.{color}... Checking the code, when timestamp is not specified, HConstants.LATEST_TIMESTAMP is used, which is Long.MAX_VALUE. Thanks to [Jerry and Chia-Ping Tsai's comments|https://issues.apache.org/jira/browse/HBASE-18824?focusedCommentId=16167392&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16167392]. was: In http://hbase.apache.org/book.html#versions, 1. In chapter 27.2.4 Put bq. Doing a put always creates a new version of a cell, at a certain timestamp. {color:#205081}By default the system uses the server’s currentTimeMillis{color}, ... 2. In chapter 27.2.5 Delete bq. Deletes work by creating tombstone markers. For example, let’s suppose we want to delete a row. For this you can specify a version, or else {color:#205081}by default the currentTimeMillis is used.{color}... Checking the code, when timestamp is not specified, HConstants.LATEST_TIMESTAMP is used, which is Long.MAX_VALUE. Thanks to [Chia-Ping Tsai's comment|https://issues.apache.org/jira/browse/HBASE-18824?focusedCommentId=16167392&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16167392]. > Add meaningful comment to HConstants.LATEST_TIMESTAMP to explain why it is > MAX_VALUE > ------------------------------------------------------------------------------------ > > Key: HBASE-18824 > URL: https://issues.apache.org/jira/browse/HBASE-18824 > Project: HBase > Issue Type: Improvement > Reporter: Xiang Li > Assignee: Xiang Li > Priority: Minor > > In http://hbase.apache.org/book.html#versions, > 1. In chapter 27.2.4 Put > bq. Doing a put always creates a new version of a cell, at a certain > timestamp. {color:#205081}By default the system uses the server’s > currentTimeMillis{color}, ... > 2. In chapter 27.2.5 Delete > bq. Deletes work by creating tombstone markers. For example, let’s suppose we > want to delete a row. For this you can specify a version, or else > {color:#205081}by default the currentTimeMillis is used.{color}... > Checking the code, when timestamp is not specified, > HConstants.LATEST_TIMESTAMP is used, which is Long.MAX_VALUE. > Thanks to [Jerry and Chia-Ping Tsai's > comments|https://issues.apache.org/jira/browse/HBASE-18824?focusedCommentId=16167392&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16167392]. > -- This message was sent by Atlassian JIRA (v6.4.14#64029)