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From Abe Weinograd <>
Subject Date deserialization change in 3.0
Date Fri, 04 Apr 2014 15:03:26 GMT
We are bulk loading rows into our HBase tables directly via M/R -> HFiles.
 This worked well in 2.2.3 and has broken with 3.0.

We have a 3 column PK (int, date, int).  When I insert directly via the
JDBC driver, everything works well.  When loading via the HFile, logging
the Hex String from our M/R job and doing a scan on the table in the hbase
shell, it shows this:

The first 12 bytes (int then date) of our key looks like this on the scan:

x00\x00\x1D\x8F\xD5&\x84\x00 was supposed to represent 12/31/2999 00:00:00
The long value is 32503593600000L

We are using hbase client util Bytes.toBytes(32503593600000L) to get our
value.  It seems like a change in the PDataType code causes this not to
work anymore with 3.0.

Does this make sense?  Is there an easy way for us to fix it?  I know the
Bytes.toBytes() representation looks funny with the & in it, but it seems
to work across the board.

Any ideas how we can work around this?


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