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48 discussions - 236 posts

  • 1.Is there any max limit on key size of hbase table. 2.Is multiple small tables vs one large table which one is preferred. 3.for bulk load -when LoadIncremantalHfile is run it again recalculates the ...
    Shushant AroraShushant Arora
    Aug 17, 2015 at 1:45 pm
    Aug 19, 2015 at 4:21 pm
  • I have a table with 2 column families, call them A and B, with new data regularly being added. They are very different sizes: B is 100x the size of A. Among other uses for this data, I have a ...
    Dave LathamDave Latham
    Aug 1, 2015 at 2:17 pm
    Aug 3, 2015 at 7:23 pm
  • Hi all, Since I kerberized my cluster, it seems like I can't use HBase anymore ... For example, executing create 'toto','titi' on HBase shell results in the printing of this line endlessly : WARN ...
    Loïc ChanelLoïc Chanel
    Aug 20, 2015 at 12:46 pm
    Sep 1, 2015 at 1:06 pm
  • Hi, we are using version 1.0.0+cdh5.4.4+160 We have heavy write load, ~ 10K per econd We have 10 nodes 7 disks each. I read some perf notes, they state that HBase can handle 1K per second writes per ...
    Serega SheypakSerega Sheypak
    Aug 11, 2015 at 10:23 am
    Aug 13, 2015 at 1:14 pm
  • Hi, I'm curious about how exactly region movement works with regard to data transfer. To my understanding from the docs given an HDFS-backed cluster, a region movement / transition involves changing ...
    DonmaiDonmai
    Aug 25, 2015 at 4:36 pm
    Aug 27, 2015 at 2:19 pm
  • Hi, We wanted to have deleted data for a week. So we configured MIN_VERSIONS = 1 KEEP_DELETED_CELLS = TTL TTL = 1 week. As per our understanding, after 1 week the deleted data becomes available for ...
    Mukund murraliMukund murrali
    Aug 5, 2015 at 6:34 am
    Aug 20, 2015 at 5:25 pm
  • Hi, I am using HBase 0.98 with HFiles of majorVersion 3. Is it possible to get and set cell tags from the HBase shell utility? I have been looking at various JIRAs and see some example client testing ...
    Suresh SubbiahSuresh Subbiah
    Aug 31, 2015 at 7:25 pm
    Sep 11, 2015 at 12:06 am
  • Hello, HBase RegionServers fail once in a while: - it can be any regionserver, not always de same - it can happen when all the cluster is idle (at least not executing any human launched task) - it ...
    Adrià VilàAdrià Vilà
    Aug 7, 2015 at 8:01 am
    Aug 10, 2015 at 5:17 pm
  • Quick question here. Compactions seems to be triggered when we flush automatically, but not when we flush manually. for 1 to 10 put into a table flush the table end of for Will create 10 files, and ...
    Jean-Marc SpaggiariJean-Marc Spaggiari
    Aug 5, 2015 at 5:16 pm
    Aug 6, 2015 at 7:26 pm
  • I'm trying to construct a `Get` the does two things: - Gets a cell by specific, known column qualifier, and - Gets more cells by column qualifier prefix public class Test { public static final byte[] ...
    Dmitry MinkovskyDmitry Minkovsky
    Aug 3, 2015 at 8:40 pm
    Aug 4, 2015 at 3:23 am
  • Hi, I am trying to use following code to test HBase Thrift interface for Node.js but it is not working. *var thrift = require('thrift');* *var hbase = require('./gen-nodejs/THBaseService');* *var ...
    Chandrashekhar KotekarChandrashekhar Kotekar
    Aug 24, 2015 at 12:00 pm
    Aug 24, 2015 at 2:25 pm
  • Congratulations Stephen.
    Ted YuTed Yu
    Aug 21, 2015 at 2:12 am
    Aug 22, 2015 at 3:39 am
  • Good morning, I just installed Hbase from brew repository, in MacOSX (Darwin Kernel Version 14.3.0) Hbase 1.0.1, hadoop 2.7.1, zookeeper 3.4.6-1. Lab:~ danielmantovani$ hbase shell SLF4J: Class path ...
    Daniel de Oliveira MantovaniDaniel de Oliveira Mantovani
    Aug 4, 2015 at 2:25 pm
    Aug 5, 2015 at 2:36 pm
  • Hello, Is there a Java API support for compound filter (a hierarchy of filters)? What I mean by compound filter is: (Filter1 AND filter2) OR (Filter2 OR filter4) I believe (not sure though) there's ...
    Kannan RamanathanKannan Ramanathan
    Aug 17, 2015 at 8:07 pm
    Aug 18, 2015 at 2:32 pm
  • Hi, Occasionally when I run restore_snapshot on HBase 0.98.10, it appears that the table directory structure created by the restore_snapshot command is not correct: rootdir/data/default/foo Is what ...
    DonmaiDonmai
    Aug 26, 2015 at 4:58 pm
    Aug 26, 2015 at 7:03 pm
  • Hi all, The default size of Hbase.hregion.memstore.flush.size is define as 128 MB for Hbase.hregion.memstore.flush.size. Could anyone kindly explain what would be the impact if we increase this to a ...
    Gautam BorahGautam Borah
    Aug 24, 2015 at 4:27 pm
    Aug 24, 2015 at 6:22 pm
  • I'm looking for ways to setup an incremental update task to replicate the MySQL table to HBase. Sqoop seems like an option to import but doesn't seem to handle row updates and deletes. Hoping there ...
    Buntu DevBuntu Dev
    Aug 14, 2015 at 11:56 pm
    Aug 15, 2015 at 12:51 am
  • Hello the community, In my case, I want to cleanup the HTables that older than certain days; so we need to get the table's creation time, is there any API to get this? If not, I may have to add such ...
    ShaoFeng ShiShaoFeng Shi
    Aug 14, 2015 at 9:54 am
    Aug 14, 2015 at 2:29 pm
  • Hi All, As titled, now we're using 0.98.12 in our product env but would like to do some planing for upgrading to branch-1. I could see 1.1.2 is coming soon but 1.2 is also in progress w/ some ...
    Yu LiYu Li
    Aug 24, 2015 at 9:41 am
    Aug 29, 2015 at 11:39 am
  • Hi, I have generated node.js files using Thrift and trying to get a single row from HBase. I am getting thrift.ProcessFunction: Internal error processing get <http://pastebin.com/embed.php?i=r9uqr8iN ...
    Chandrashekhar KotekarChandrashekhar Kotekar
    Aug 24, 2015 at 2:32 pm
    Aug 25, 2015 at 6:23 am
  • Hi Recently we tried adding a new regionserver to the cluster. The region server had the following logs for all the regions it tried to open. 2015-08-14 01:23:52,175 ERROR ...
    Mukund murraliMukund murrali
    Aug 20, 2015 at 11:58 am
    Aug 21, 2015 at 11:53 am
  • Hello, I'm new to HBase, so pardon the stupid question. Hbase is meant to run on HDFS I presume, although it is not the default on the 'single host' setup. My question is: assuming I have a HDFS ...
    MrEMrE
    Aug 20, 2015 at 3:32 pm
    Aug 20, 2015 at 3:47 pm
  • Hi all I have been trying to run hbase on a standalone mode with 1.1.0 and 0.98 versions without luck. Can some one please guide me on what to do. I have wasted one whole day for this. I always end ...
    Rakesh sharmaRakesh sharma
    Aug 15, 2015 at 5:57 pm
    Aug 15, 2015 at 7:29 pm
  • I'm planning on writing a time series of user action events including user profile, attributes and product purchase transactions to answer these questions/queries: - What are the events leading up to ...
    Buntu DevBuntu Dev
    Aug 27, 2015 at 6:58 pm
    Aug 27, 2015 at 10:22 pm
  • Hi How many ways about hbase pre-split? thank u very much! Best regards! Jackie
    JackiehbaseuserJackiehbaseuser
    Aug 27, 2015 at 1:38 am
    Aug 27, 2015 at 12:33 pm
  • Hi I want to the mornitor the Hbase(based hbase 0.96.2),which tool can i choose ! Thank u very much! Best regards! qiguo
    JackiehbaseuserJackiehbaseuser
    Aug 20, 2015 at 12:25 pm
    Aug 20, 2015 at 5:06 pm
  • Hi. I used PerformanceEvaluation randomWrite for perf measurement. Here are my metrics: -- Timers ---------------------------------------------------------------------- .putTimer count = 3944591 mean ...
    Serega SheypakSerega Sheypak
    Aug 13, 2015 at 8:23 am
    Aug 13, 2015 at 7:52 pm
  • hi，all： I use the HBase version is hbase-0.96.0.This afternoon,I met a problem. dead loop small compact in the region server log. Regionserver on the log is as follows： 2015-08-07 16:03:24,406 INFO ...
    聪聪聪聪
    Aug 7, 2015 at 9:16 am
    Aug 10, 2015 at 7:56 am
  • Hi, I need to implement a limited sql like filter+group+order, and the group is on a fixed-length prefix of the rowkey (fixed per query), and the results are multiple metrics including some custom ...
    Nicolae MarasoiuNicolae Marasoiu
    Aug 7, 2015 at 4:43 pm
    Aug 9, 2015 at 3:31 am
  • Hi All How does HBase flush memstore besides the configuration in [hbase.hregion.memstore.flush.size]? I believe we set flush size to 64M, but I find many *small* memstore flush logs as below ...
    Chang ChenChang Chen
    Aug 1, 2015 at 8:15 am
    Aug 2, 2015 at 1:54 pm
  • I'm planning on ingesting web page events via Flume to HBase and wanted to know if there are any ways HBase related projects to define rules to trigger an action if given criteria is met. For ...
    Buntu DevBuntu Dev
    Aug 26, 2015 at 7:39 am
    Aug 26, 2015 at 9:14 am
  • Hi How many ways when i design the hbase rowkey ,and give some examples. Thank u very much! Best regards! qiguo
    JackiehbaseuserJackiehbaseuser
    Aug 23, 2015 at 3:01 pm
    Aug 23, 2015 at 3:52 pm
  • Hello, Which is the fastest way to dump the content of Hbase table to Hdfs? is it possible to use the hbase snapshot + Spark to do this? now we have already use the hbase snapshot + mapreduce-v2(does ...
    Dong.yajunDong.yajun
    Aug 19, 2015 at 3:11 pm
    Aug 19, 2015 at 3:52 pm
  • hi, I was read the source code of hbase-client recently,and I have a question,what's the different between class ClientScanner and ClientSmallScanner?What's make the ClientSmallScanner get a better ...
    Whodarewin2006Whodarewin2006
    Aug 18, 2015 at 3:11 pm
    Aug 18, 2015 at 3:38 pm
  • Folks, I’d like to get REST gateway impersonation going on my cluster but I’m a little confused by the docs (section 55.8 of the reference guide for the version I’m using, 0.98.13.) As I understand ...
    Rose, JosephRose, Joseph
    Aug 10, 2015 at 9:55 pm
    Aug 10, 2015 at 11:01 pm
  • Hi, I have some difficulties understanding the "ExecutorService parameter" for HConnectionManager.createConnection and HConnection.getTable. 1 what's this executorService used for? is it used only ...
    Mike FangMike Fang
    Aug 10, 2015 at 9:28 pm
    Aug 10, 2015 at 10:02 pm
  • Hi all, We have two hbase cluster (one prod, one backup) running hbase 0.94.6 (from cdh4.) and have setup master-master replication. Last week we find the .oldlogs in the prod cluster was growing ...
    Shuai LinShuai Lin
    Aug 7, 2015 at 7:14 am
    Aug 7, 2015 at 9:07 am
  • Hi, I am using HBase in collaboration with Apache Flink… Unfortunately the Flink-Cluster is not able to deal with tables that are split over more than one region server. The clients are just shutting ...
    Lydia IcklerLydia Ickler
    Aug 6, 2015 at 8:43 pm
    Aug 6, 2015 at 10:23 pm
  • I've been thinking of creating a new Twemproxy/Thrift (https://github.com/twitter/twemproxy) like proxy for HBase that would be based on using (as the underlying transport protocol) the native ...
    Amit MorAmit Mor
    Aug 5, 2015 at 7:30 am
    Aug 5, 2015 at 5:45 pm
  • Hi all, I'm having the issue of OutOfOrderScannerNextException, which in this case happens in scan with fuzzy row filter and only for a specific arguments, i.e. some fuzzy filter arguments work ...
    Michal HarisMichal Haris
    Aug 4, 2015 at 9:49 pm
    Aug 4, 2015 at 10:23 pm
  • Hi All We use HBase 0.96.1.1, and find a very strange issue which looks like CompactSplitThread is waiting for something! The following logs are from problematic RegionServer: 2015-07-29 10:15:39,702 ...
    Chang ChenChang Chen
    Aug 3, 2015 at 12:18 pm
    Aug 3, 2015 at 12:51 pm
  • I was able to successfully export data to S3 using below command. hbase org.apache.hadoop.hbase.mapreduce.Export docs s3n://KEY:[email protected]/data/bkp1 1440760612 1440848237 and I was able to ...
    Arun PatelArun Patel
    Aug 29, 2015 at 2:32 pm
    Aug 29, 2015 at 2:32 pm
  • I think Dinesh was referring to: http://docs.oracle.com/javase/7/docs/api/java/lang/Process.html Cheers
    Ted YuTed Yu
    Aug 13, 2015 at 10:30 pm
    Aug 13, 2015 at 10:30 pm
  • On behalf of the development community, I'm pleased to announce the release of YCSB version 0.3.0. Highlights: * Apache HBase 1.0 support * Aerospke 3.5 support (new) * Apache Cassandra 2.0 CQL ...
    Govind KamatGovind Kamat
    Aug 11, 2015 at 12:15 am
    Aug 11, 2015 at 12:15 am
  • Heya, One of our "advertised features" on 1.1 is a shaded packaging of client jars. Initial patches went through but it seems the feature is not standing up to more thorough testing. A number of ...
    Nick DimidukNick Dimiduk
    Aug 10, 2015 at 5:46 pm
    Aug 10, 2015 at 5:46 pm
  • I'm looking into how to apply changes to Mysql table to HBase and came across this list of projects to stream the binlog events but not sure how these changes events get parsed to be applied to HBase ...
    Buntu DevBuntu Dev
    Aug 6, 2015 at 6:45 pm
    Aug 6, 2015 at 6:45 pm
  • Hi St.Ack and thanks, I just gave Twemproxy as an example for the concept and need, no Redis/Memcached in this case. The core of the concept (if it solves anything...) is that every client node ...
    Amit MorAmit Mor
    Aug 6, 2015 at 8:06 am
    Aug 6, 2015 at 8:06 am
  • Hi, We are using HDP 2.1, already upgrading to 2.2, ready for 2.3, meaning we have 0.98.0 and 0.98.4 currently on different environments. I saw in last let's say two months, before we started ...
    Dejan MengesDejan Menges
    Aug 3, 2015 at 2:53 pm
    Aug 3, 2015 at 2:53 pm
Aug 2015
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54 users for August 2015

Ted Yu: 58 posts Vladimir Rodionov: 16 posts Jean-Marc Spaggiari: 11 posts Serega Sheypak: 10 posts Mukund murrali: 9 posts Shushant Arora: 9 posts Anil Gupta: 8 posts Donmai: 8 posts Loïc Chanel: 8 posts Buntu Dev: 7 posts Chandrashekhar Kotekar: 7 posts Dave Latham: 7 posts Adrià Vilà: 4 posts Andrew Purtell: 4 posts Daniel de Oliveira Mantovani: 4 posts Dmitry Minkovsky: 4 posts Jackiehbaseuser: 4 posts Kannan Ramanathan: 3 posts Chang Chen: 3 posts Esteban Gutierrez: 3 posts
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