Other parts of the non-hadoop system will continue to add records to mysql db when I move those records (and remove the very same records from mysql db at the same time) to hadoop for processing. That's why I am doing those mysql commands.
What are you suggesting? If I do it like you suggest, dump all records from mysql db to a file in hdfs, how do I remove those very same records from the mysql db at the same time? Just rename it first and then dump them and then read them from the hdfs file? or should I do it my way? which way is faster? Thanks. Edward J. Yoon-2 wrote: > > Hadoop is a distributed filesystem. If you wanted to backup your table > data to hdfs, you can use SELECT * INTO OUTFILE 'file_name' FROM > tbl_name; Then, put it to hadoop dfs. > > Edward > > On Thu, May 21, 2009 at 12:08 AM, dealmaker <vin...@gmail.com> wrote: >> >> No, actually I am using mysql. So it doesn't belong to Hive, I think. >> >> >> owen.omalley wrote: >>> >>> >>> On May 19, 2009, at 11:48 PM, dealmaker wrote: >>> >>>> >>>> Hi, >>>> I want to backup a table and then create a new empty one with >>>> following >>>> commands in Hadoop. How do I do it in java? Thanks. >>> >>> Since this is a question about Hive, you should be asking on >>> hive-u...@hadoop.apache.org >>> . >>> >>> -- Owen >>> >>> >> >> -- >> View this message in context: >> http://www.nabble.com/How-to-Rename---Create-DB-Table-in-Hadoop--tp23629956p23637131.html >> Sent from the Hadoop core-user mailing list archive at Nabble.com. >> >> > > > > -- > Best Regards, Edward J. Yoon @ NHN, corp. > edwardy...@apache.org > http://blog.udanax.org > > -- View this message in context: http://www.nabble.com/How-to-Rename---Create-Mysql-DB-Table-in-Hadoop--tp23629956p23638051.html Sent from the Hadoop core-user mailing list archive at Nabble.com.
