Re: question on column families

2018-11-13 Thread Antonio Si
Thanks Allan. Then, why is it a problem of having too many column families? If there are column families with no data, would that cause any issues? Thanks. Antonio. On Tue, Nov 13, 2018 at 7:09 PM Allan Yang wrote: > No, Every column family has its own memstore. Each one is 128MB in your >

Re: check if column family has any data

2018-11-13 Thread Jingyun Tian
Hi, The problem of your scan is that filter will grab all data then do the filter things. Thus it's very slow. You may try to specify the column family when you scan, like "scan 't1', { LIMIT => 10, COLUMNS => ['c1', 'c2'], CACHE_BLOCKS => false}". Sincerely, Jingyun Tian On Wed, Nov 14, 2018 at

Re: question on column families

2018-11-13 Thread Allan Yang
No, Every column family has its own memstore. Each one is 128MB in your case. When flushing, the flusher will choose those memstore who satisfy certain conditions, so it is possible that not every column family(Store) will flush the memstore. Best Regards Allan Yang Antonio Si 于2018年11月14日周三

Re: [ANNOUNCE] New HBase committer Jingyun Tian

2018-11-13 Thread Jingyun Tian
Thank you all! Sincerely, Jingyun Tian On Wed, Nov 14, 2018 at 8:59 AM stack wrote: > Welcome jingyun. > S > > On Mon, Nov 12, 2018, 11:54 PM 张铎(Duo Zhang) > > On behalf of the Apache HBase PMC, I am pleased to announce that Jingyun > > Tian has accepted the PMC's invitation to become a

Re: [ANNOUNCE] New HBase committer Jingyun Tian

2018-11-13 Thread stack
Welcome jingyun. S On Mon, Nov 12, 2018, 11:54 PM 张铎(Duo Zhang) On behalf of the Apache HBase PMC, I am pleased to announce that Jingyun > Tian has accepted the PMC's invitation to become a committer on the > project. We appreciate all of Jingyun's generous contributions thus far and > look

question on column families

2018-11-13 Thread Antonio Si
Hi, I would like to confirm my understand. Let's say I have 13 column families in a hbase table. 11 of those column families have no data, which 2 column families have large amount of data. My understanding is that the size of memstore, which is 128M in my env, will be shared across all column

check if column family has any data

2018-11-13 Thread Antonio Si
Hi, Is there an easy way to check if a column family of a hbase table has any data? I try something like "scan '', { LIMIT => 10, FILTER=>"FamilyFilter(=, 'binary:')" } in hbase shell and it timeout. I guess it's because my table has 15TB of data. So, I am guessing that particular family has no

Re: [ANNOUNCE] New HBase committer Jingyun Tian

2018-11-13 Thread Zach York
Congratulations, Jingyun! Welcome! On Tue, Nov 13, 2018 at 10:59 AM Peter Somogyi wrote: > Congratulations Jingyun! > > On Tue, Nov 13, 2018 at 8:54 AM 张铎(Duo Zhang) > wrote: > > > On behalf of the Apache HBase PMC, I am pleased to announce that Jingyun > > Tian has accepted the PMC's

Re: [ANNOUNCE] New HBase committer Jingyun Tian

2018-11-13 Thread Peter Somogyi
Congratulations Jingyun! On Tue, Nov 13, 2018 at 8:54 AM 张铎(Duo Zhang) wrote: > On behalf of the Apache HBase PMC, I am pleased to announce that Jingyun > Tian has accepted the PMC's invitation to become a committer on the > project. We appreciate all of Jingyun's generous contributions thus

Re: [ANNOUNCE] New HBase committer Jingyun Tian

2018-11-13 Thread Andrew Purtell
Congratulations and welcome, Jingyun! On Mon, Nov 12, 2018 at 11:54 PM 张铎(Duo Zhang) wrote: > On behalf of the Apache HBase PMC, I am pleased to announce that Jingyun > Tian has accepted the PMC's invitation to become a committer on the > project. We appreciate all of Jingyun's generous

Re: [ANNOUNCE] New HBase committer Jingyun Tian

2018-11-13 Thread Ted Yu
Congratulations, Jingyun! Original message From: Srinivas Reddy Date: 11/13/18 12:46 AM (GMT-08:00) To: d...@hbase.apache.org Cc: Hbase-User Subject: Re: [ANNOUNCE] New HBase committer Jingyun Tian Congratulations Jingyun-Srinivas- Typed on tiny keys. pls ignore

Re: [ANNOUNCE] New HBase committer Jingyun Tian

2018-11-13 Thread Yu Li
Congratulations and welcome, Jingyun! Best Regards, Yu On Tue, 13 Nov 2018 at 16:46, Srinivas Reddy wrote: > Congratulations Jingyun > > - > Srinivas > > - Typed on tiny keys. pls ignore typos.{mobile app} > > On Tue 13 Nov, 2018, 15:54 张铎(Duo Zhang) > > On behalf of the Apache HBase PMC,

Re: [ANNOUNCE] New HBase committer Jingyun Tian

2018-11-13 Thread Srinivas Reddy
Congratulations Jingyun - Srinivas - Typed on tiny keys. pls ignore typos.{mobile app} On Tue 13 Nov, 2018, 15:54 张铎(Duo Zhang) On behalf of the Apache HBase PMC, I am pleased to announce that Jingyun > Tian has accepted the PMC's invitation to become a committer on the > project. We

Re: [ANNOUNCE] New HBase committer Jingyun Tian

2018-11-13 Thread Allan Yang
Congratulations, Jingyun! Best Regards Allan Yang Ashish Singhi 于2018年11月13日周二 下午4:33写道: > Congratulations & Welcome! > > Regards, > Ashish > > On Tue, Nov 13, 2018 at 1:24 PM 张铎(Duo Zhang) > wrote: > > > On behalf of the Apache HBase PMC, I am pleased to announce that Jingyun > > Tian has

Re: [ANNOUNCE] New HBase committer Jingyun Tian

2018-11-13 Thread Ashish Singhi
Congratulations & Welcome! Regards, Ashish On Tue, Nov 13, 2018 at 1:24 PM 张铎(Duo Zhang) wrote: > On behalf of the Apache HBase PMC, I am pleased to announce that Jingyun > Tian has accepted the PMC's invitation to become a committer on the > project. We appreciate all of Jingyun's generous