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From Олександр Силка <sylkaa...@gmail.com>
Subject Re: Problem with UUID
Date Fri, 08 Apr 2011 22:45:59 GMT
I try to use method getUniqueTimeUUIDinMillis from
https://github.com/rantav/hector/blob/master/core/src/main/java/me/prettyprint/cassandra/utils/TimeUUIDUtils.java
but i still get same result "InvalidRequestException(why:TimeUUID should be
16 or 0 bytes (3))";

9 квітня 2011 р. 01:32 Олександр Силка <sylkaalex@gmail.com> написав:

> Thanks that you try to help me,  but i still get error message
> InvalidRequestException(why:TimeUUID should be 16 or 0 bytes (3))
> This code UUID timeUUID = getTimeUUID(); doesn't solve my problem.
>
> 9 квітня 2011 р. 01:16 Ed Anuff <ed@anuff.com> написав:
>
> Oops, I should have been more clear.  You have this code:
>>
>> UUID timeUUID = getTimeUUID().randomUUID();
>>
>> what you need is this code:
>>
>> UUID timeUUID = getTimeUUID();
>>
>> What I meant by not understanding the error message was that I thought
>> the TimeUUIDType gave a different error message than the one your're
>> seeing when you put a random UUID into a time UUID CF.  Try the above
>> fix and see if it makes the problem go away.
>>
>> Ed
>>
>> 2011/4/8 Patrick Julien <pjulien@gmail.com>:
>> > I think this is what you're looking for
>> >
>> > http://wiki.apache.org/cassandra/FAQ#working_with_timeuuid_in_java
>> >
>> > 2011/4/8 Олександр Силка <sylkaalex@gmail.com>:
>> >>
>> >> Then how i can generate correct time UUID key in java ?
>> >>
>> >> 8 квітня 2011 р. 22:58 Ed Anuff <ed@anuff.com> написав:
>> >>>
>> >>> Hmm, if you're really doing this, you're not getting a time uuid:
>> >>>
>> >>>  UUID timeUUID = getTimeUUID().randomUUID();
>> >>>
>> >>> That call to randomUUID() is invoking the static randomUUID() method
>> >>> in java.util.UUID which is generating a non-time random uuid.  I'm not
>> >>> sure why you're getting that error message though.
>> >>>
>> >>> Ed
>> >>>
>> >>> 2011/4/8 Олександр Силка <sylkaalex@gmail.com>:
>> >>> > Hi everyone,
>> >>> > I have column family called site sorted
>> >>> > by org.apache.cassandra.db.marshal.TimeUUIDType.
>> >>> > When I try to save some data using hector i get next
>> >>> > message InvalidRequestException(why:TimeUUID should be 16 or 0
bytes
>> >>> > (3)).
>> >>> > My Cassandra version 0.7.0
>> >>> >
>> >>> > This is snippets of my code:
>> >>> > public static java.util.UUID getTimeUUID() {
>> >>> > return java.util.UUID.fromString(new
>> com.eaio.uuid.UUID().toString());
>> >>> > }
>> >>> > UUID timeUUID = getTimeUUID().randomUUID();
>> >>> > List<HColumn<String, String>> columns =
>> DaoHelper.getStringCols(site);
>> >>> >  Mutator<UUID> mutator = HFactory.createMutator(keyspace,
>> >>> > UUIDSerializer.get());
>> >>> >  for (HColumn<?, ?> column : columns) {
>> >>> >           mutator.addInsertion(timeUUID, columnFamilyName, column);
>> >>> >  }
>> >>> > I am new in Cassandra and i really want to understand how it
>> works.So
>> >>> > please
>> >>> > help me.
>> >>
>> >>
>> >
>>
>
>

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