Re: RowKey hashing in HBase 1.0

2015-05-06 Thread Michael Segel
Jeremy, I think you have to be careful in how you say things. While over time, you’re going to get an even distribution, the hash isn’t random. Its consistent so that hash(x) = y and will always be the same. You’re taking the modulus to create 1 to n buckets. In each bucket, your new key is

Re: RowKey hashing in HBase 1.0

2015-05-06 Thread jeremy p
Thank you for the explanation, but I'm a little confused. The key will be monotonically increasing, but the hash of that key will not be. So, even though your original keys may look like : 1_foobar, 2_foobar, 3_foobar After the hashing, they'd look more like : 349000_1_foobar, 99_2_foobar, 00

Re: [VOTE] First release candidate for HBase 1.1.0 (RC0) is available.

2015-05-06 Thread Nick Dimiduk
I'm also traveling today. I've already extended the vote for this RC to Sunday, and since no one has said this is a -1 -worthy regression, this candidate continues to stand. On Wed, May 6, 2015 at 12:16 PM, Andrew Purtell wrote: > Formally, -0 > > Given tomorrow is hbasecon perhaps it would be

Re: [VOTE] First release candidate for HBase 1.1.0 (RC0) is available.

2015-05-06 Thread Andrew Purtell
Formally, -0 Given tomorrow is hbasecon perhaps it would be better to spin a RC on Friday? I can take HBASE-13637 but am sitting on a plane at the moment. Won't be able to get to it until tonight. > On May 6, 2015, at 10:43 AM, Nick Dimiduk wrote: > > On Wed, May 6, 2015 at 10:13 AM, Andrew

Re: [VOTE] First release candidate for HBase 1.1.0 (RC0) is available.

2015-05-06 Thread Nick Dimiduk
On Wed, May 6, 2015 at 10:13 AM, Andrew Purtell wrote: > I prefer to patch the POMs. > Is this a formal -1? I've opened HBASE-13637 for tracking this issue. Let's get it fixed and I'll spin a new RC tonight. > On May 5, 2015, at 4:16 PM, Nick Dimiduk wrote: > > > > So what's the conclusion he

Re: [VOTE] First release candidate for HBase 1.1.0 (RC0) is available.

2015-05-06 Thread Andrew Purtell
I prefer to patch the POMs. > On May 5, 2015, at 4:16 PM, Nick Dimiduk wrote: > > So what's the conclusion here? Are we dropping 2.2 support or updating the > poms and sinking the RC? > >> On Fri, May 1, 2015 at 7:47 AM, Sean Busbey wrote: >> >> On Thu, Apr 30, 2015 at 6:48 PM, Andrew Purt

HBase bug HBASE-13566

2015-05-06 Thread kongzhiguiji
hi,I got a metaLogRoller bug can make regionserver abort,and now I use a conf named hbase.regionserver.logroll.errors.tolerated to ignore the problem I don't now how to solve it directly,please help meHBASE-13566 : As hbase run MetaLogRoller thread for writting meta hlog, I got below errorERROR