a question about assigning timestamp?

2013-07-13 Thread yonghu
Hello, From the reference book 5.8.1.4. Put, if I issue a Put command without specifying timestamp, the server will generate a TS for me! I wonder if the server means the master node or regionservers? In my understanding, the server means the regionserver, as the master will only tells the

the scan will be executed parallel if not use coprocessor?

2013-07-13 Thread ch huang
ATT

Re: a question about assigning timestamp?

2013-07-13 Thread Azuryy Yu
yes, you are right. that is RS. On Jul 13, 2013 4:22 PM, yonghu yongyong...@gmail.com wrote: Hello, From the reference book 5.8.1.4. Put, if I issue a Put command without specifying timestamp, the server will generate a TS for me! I wonder if the server means the master node or

Re: ZK-related issue when updating from 0.94.6 to 0.94.8

2013-07-13 Thread Adrien Mogenet
My RS finally started without the strange ZK error, but regions are still not moving... Here is the new sample from RS log : http://pastebin.com/raw.php?i=QJxs4chE I can't see anything strange in the ZK's logs, just classical connect/disconnect requests. When should ZK nodes move from

Re: the scan will be executed parallel if not use coprocessor?

2013-07-13 Thread Ted Yu
Can you clarify your question a little bit ? That is, are you expecting parallel scan within region boundary or across boundaries ? Cheers On Jul 13, 2013, at 1:43 AM, ch huang justlo...@gmail.com wrote: ATT

Re: ZK-related issue when updating from 0.94.6 to 0.94.8

2013-07-13 Thread Ted Yu
Take a look at https://issues.apache.org/jira/browse/HBASE-8259 Cheers On Jul 13, 2013, at 4:04 AM, Adrien Mogenet adrien.moge...@gmail.com wrote: My RS finally started without the strange ZK error, but regions are still not moving... Here is the new sample from RS log :

Re: the scan will be executed parallel if not use coprocessor?

2013-07-13 Thread ch huang
hi ted ,for example i have a table with 10 regions, if i offer the condition hit the data of 8 regions,is it different do it use oraginal scan and use coprocessor? i know coprocessor can do it parallel for each region ,but why the oraginal scan will slow than coprocessor? On Sat, Jul 13, 2013

Re: the scan will be executed parallel if not use coprocessor?

2013-07-13 Thread Ted Yu
Have you read https://blogs.apache.org/hbase/entry/coprocessor_introduction? Cheers On Sat, Jul 13, 2013 at 4:50 AM, ch huang justlo...@gmail.com wrote: hi ted ,for example i have a table with 10 regions, if i offer the condition hit the data of 8 regions,is it different do it use oraginal

Re: small hbase doubt

2013-07-13 Thread Asaf Mesika
I ment to ask if this type of compression is supported over RPC calls in 0.95? On Saturday, July 13, 2013, Ted Yu wrote: bq. Do you think prefix compression can also be utilized here? In your use case, prefix compression would help in reducing bandwidth consumption. On Thu, Jul 11, 2013

Re: small hbase doubt

2013-07-13 Thread Ted Yu
Not yet, to my knowledge. On Sat, Jul 13, 2013 at 10:57 AM, Asaf Mesika asaf.mes...@gmail.com wrote: I ment to ask if this type of compression is supported over RPC calls in 0.95? On Saturday, July 13, 2013, Ted Yu wrote: bq. Do you think prefix compression can also be utilized here?