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https://issues.apache.org/jira/browse/HBASE-18824?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiang Li updated HBASE-18824:
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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 [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].
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 [~chia7712]'s [link
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 [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].
>
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