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Posted to user@cassandra.apache.org by Олександр Силка <sy...@gmail.com> on 2011/04/08 21:52:25 UTC
Problem with UUID
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.
Re: Problem with UUID
Posted by Олександр Силка <sy...@gmail.com>.
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 <sy...@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 <pj...@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 <sy...@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 <sy...@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.
>> >>
>> >>
>> >
>>
>
>
Re: Problem with UUID
Posted by Олександр Силка <sy...@gmail.com>.
Thanks a lot Ed. I understand where was my problem. I thought that
compareWith applied for a rows not for columns.
9 квітня 2011 р. 01:46 Ed Anuff <ed...@anuff.com> написав:
> I think the problem is this then:
>
> mutator.addInsertion(timeUUID, columnFamilyName, column);
>
> I'm not sure what you're doing here, but you're using your timeUUID as
> the row key, not the column name. I don't see you actually assigning
> the column name so I don't know what you're putting in it. You're
> getting that error message because whatever is the column name in that
> column is not a UUID.
>
> Ed
>
> 2011/4/8 Олександр Силка <sy...@gmail.com>:
> > 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 <pj...@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 <sy...@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 <sy...@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.
> >> >>
> >> >>
> >> >
> >
> >
>
Re: Problem with UUID
Posted by Олександр Силка <sy...@gmail.com>.
Is that mean with this configuration i must use for column value only UUID ?
I realy don't understand how it work.
I little change my code:
UUID timeUUID = DaoHelper.getTimeUUID();
HColumn<String, String> column = HFactory.createColumn("name", "Alex",
StringSerializer.get(), StringSerializer.get());
Mutator<UUID> mutator = HFactory.createMutator(keyspace,
UUIDSerializer.get());
mutator.addInsertion(timeUUID, columnFamilyName, column);
mutator.execute();
9 квітня 2011 р. 01:46 Ed Anuff <ed...@anuff.com> написав:
> I think the problem is this then:
>
> mutator.addInsertion(timeUUID, columnFamilyName, column);
>
> I'm not sure what you're doing here, but you're using your timeUUID as
> the row key, not the column name. I don't see you actually assigning
> the column name so I don't know what you're putting in it. You're
> getting that error message because whatever is the column name in that
> column is not a UUID.
>
> Ed
>
> 2011/4/8 Олександр Силка <sy...@gmail.com>:
> > 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 <pj...@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 <sy...@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 <sy...@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.
> >> >>
> >> >>
> >> >
> >
> >
>
Re: Problem with UUID
Posted by Ed Anuff <ed...@anuff.com>.
I think the problem is this then:
mutator.addInsertion(timeUUID, columnFamilyName, column);
I'm not sure what you're doing here, but you're using your timeUUID as
the row key, not the column name. I don't see you actually assigning
the column name so I don't know what you're putting in it. You're
getting that error message because whatever is the column name in that
column is not a UUID.
Ed
2011/4/8 Олександр Силка <sy...@gmail.com>:
> 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 <pj...@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 <sy...@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 <sy...@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.
>> >>
>> >>
>> >
>
>
Re: Problem with UUID
Posted by Олександр Силка <sy...@gmail.com>.
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 <pj...@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 <sy...@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 <sy...@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.
> >>
> >>
> >
>
Re: Problem with UUID
Posted by Ed Anuff <ed...@anuff.com>.
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 <pj...@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 <sy...@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 <sy...@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.
>>
>>
>
Re: Problem with UUID
Posted by Patrick Julien <pj...@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 <sy...@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 <sy...@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.
>
>
Re: Problem with UUID
Posted by Олександр Силка <sy...@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 <sy...@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.
>
Re: Problem with UUID
Posted by Ed Anuff <ed...@anuff.com>.
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 <sy...@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.