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From Lee Parker <...@socialagency.com>
Subject timestamp not found
Date Thu, 15 Apr 2010 15:39:58 GMT
We are currently migrating about 70G of data from mysql to cassandra.  I am
occasionally getting the following error:

Required field 'timestamp' was not found in serialized data! Struct:
Column(name:74 65 78 74, value:44 61 73 20 6C 69 65 62 20 69 63 68 20 76 6F
6E 20 23 49 6E 61 3A 20 68 74 74 70 3A 2F 2F 77 77 77 2E 79 6F 75 74 75 62
65 2E 63 6F 6D 2F 77 61 74 63 68 3F 76 3D 70 75 38 4B 54 77 79 64 56 77 6B
26 66 65 61 74 75 72 65 3D 72 65 6C 61 74 65 64 20 40 70 6A 80 01 00 01 00,
timestamp:0)

The loop which is building out the mutation map for the batch_mutate call is
adding a timestamp to each column.  I have verified that the time stamp is
there for several calls and I feel like if the logic was bad, i would see
the error more frequently.  Does anyone have suggestions as to what may be
causing this?

Lee Parker
lee@spredfast.com

[image: Spredfast]

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