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From Roland Gude <>
Subject strange issue with timeUUID columns
Date Wed, 22 Dec 2010 15:18:48 GMT

I am experiencing a strange issue when using TimeUUID as columnkeys.
I am storing a number of events with timeUUId as key in a row. Later I try to query for a
slice of that row with a given lower bound timeUUID and upperBoundTimeUUID (constructed as
described in the wiki)
If I inserted the events in ascending order everything goes well
If for some reason I insert the events in random order (which may very well happen in a concurrent
scenario) and I later query for the data (even with much more tolerant bounds) I get no data
Furthermore if I wait for some time (about 15 minutes seem to be sufficient) I can query the
data again.
The Cassandra I use is a single node 0.7.0-rc2
I am querying with hector.

Has anyone else experienced such issues?
Can someone think of an explanation for this?

Kind regards,


Roland Gude
Software Engineer

Im Mediapark 8, 50670 Köln

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