回复：Re: What's the format of Cassandra's timestamp, microsecond or millisecond?

[yh...@sina.com]

Thanks,  Something wrong with the client.


----- 原始邮件 -----
发件人：Jeff Jirsa <Je...@crowdstrike.com>
收件人："user@cassandra.apache.org" <us...@cassandra.apache.org>, "yhqruc@sina.com" <yh...@sina.com>
主题：Re: What's the format of Cassandra's timestamp, microsecond or millisecond?
日期：2015年08月11日 00点00分

The timestamp is arbitrary precision, selected by the client. If you’re seeing milliseconds on some data and microseconds on others, then you have one client that’s using microseconds and another on milliseconds – adjust your clients.


From:  "yhqruc@sina.com"
Reply-To:  "user@cassandra.apache.org", "yhqruc@sina.com"
Date:  Sunday, August 9, 2015 at 10:40 PM
To:  user
Subject:  What's the format of Cassandra's timestamp, microsecond or millisecond?

Hi, All:    When I use cassandra.thrift API to manipulate the data, the timestamp is in millisecond. It can be verified in cli:[default@ks_wwapp] get cf_user['100031'];

=> (super_column=01#uid#,
     (name=0#d#, value=bf86010000000000, timestamp=1438689394196))
   When I use cli to set a column, the timestamp is in microseconds. Such as:[default@ks_wwapp] get cf_user['100049'];

=> (super_column=sc_name,
     (name=c_name, value=635f76616c7565, timestamp=1439184495344000))
Now, I can't use cassandra.thrift API to update the key 100049. 
What's wrong with cassandra?
Thanks!