Grokbase Groups HBase user March 2015

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69 discussions - 360 posts

  • Hi All, We have a strange issue with HBase performance (overall cluster performance) in case one of datanodes in the cluster unexpectedly goes down. So scenario is like follows: - Cluster works fine, ...
    Dejan MengesDejan Menges
    Mar 16, 2015 at 1:41 pm
    Mar 23, 2015 at 4:54 pm
  • Hello everyone, I’m facing a very strange situation with my test cluster. Several services are up and running, and I would like to start HBase. HBase master starts well, but impossible to start any ...
    Mar 26, 2015 at 7:45 am
    Apr 2, 2015 at 7:48 am
  • Hi all- I've got an HFile that's reporting a corrupt block in "hadoop fsck" and was hoping to get some advice on recovering as much data as possible. When I examined the blk-* file on the three data ...
    Mike DillonMike Dillon
    Mar 18, 2015 at 12:05 am
    Mar 23, 2015 at 3:01 pm
  • Folks, I’m new to HBase (but not new to these sorts of data stores.) I think HBase would be a good fit for a project I’m working on, except for one thing: the amount of data we’re talking about, ...
    Rose, JosephRose, Joseph
    Mar 3, 2015 at 3:33 pm
    Mar 16, 2015 at 2:11 pm
  • The TTL property of the table was set to six months. The table had reached the TTL condition on last October, its capacity was about 700G via command "hdfs dfs -du -h /hbase/data/defaulta" at that ...
    David chenDavid chen
    Mar 10, 2015 at 1:56 am
    Mar 18, 2015 at 7:10 am
  • Hello- Sometime back I asked a question about introducing new nodes w/ more storage that existing nodes. I was told at the time that HBase will not be able to utilize the additional storage; I ...
    Ted TuttleTed Tuttle
    Mar 17, 2015 at 2:27 pm
    Apr 3, 2015 at 6:30 pm
  • hi, guys, I am trying to get a rough idea about the performance comparison between c++ and java client when access HBase table, and is surprised to find out that Thrift (c++) is 4X slower The ...
    Demai NiDemai Ni
    Mar 7, 2015 at 12:47 am
    Mar 10, 2015 at 6:52 pm
  • Hi, We have a secured cluster. All components are working well, except hbase. Specifically, this is what I see on regionserver: 2015-03-14 02:16:11,657 DEBUG [RpcServer.reader=5,port=60020] ...
    Manoj MurumkarManoj Murumkar
    Mar 14, 2015 at 6:29 am
    Mar 16, 2015 at 11:25 pm
  • Now we found in version of HBASE v0.98.5, there can't be set the configuration about "hbase.regionserver.restart.on.zk.expire" ,so would you please tell us there have other ways to replace this ...
    Yu, BellaYu, Bella
    Mar 2, 2015 at 2:26 am
    Mar 4, 2015 at 4:22 am
  • Hi, My requirement is to partition an HBase Table and return a group of records (i.e. rows having a specific format) without having to iterate over all of its rows. These partitions (which should ...
    Gokul BalakrishnanGokul Balakrishnan
    Mar 17, 2015 at 12:34 pm
    Mar 18, 2015 at 12:28 pm
  • Hi It seems one of our region servers has been stuck closing a region for almost 22 hours. Puts or gets eventually fail with an exception [1]. Is there any safe way to release the region like ...
    Kristoffer SjögrenKristoffer Sjögren
    Mar 14, 2015 at 8:14 pm
    Mar 15, 2015 at 10:04 am
  • Hi, Let's see where we are! :) 1-question poll: Btw: 6 months ago the guess was that HBase version usage distribution was: 60% 0.94 30% 0.96 ...
    Otis GospodneticOtis Gospodnetic
    Mar 12, 2015 at 2:47 pm
    Mar 23, 2015 at 8:35 pm
  • Hi, While trying to run hbase balancer I am getting error message as "This server is in the failed servers list".Due to this cluster is not getting balanced. Even though regionserver is up and ...
    Sandeep LSandeep L
    Mar 3, 2015 at 11:10 am
    Mar 5, 2015 at 5:45 pm
  • Hi all, I am working on a Cloudera CDH5.3.1 cluster (so hbase-0.98.6+cdh5.3.1+74) and the cluster is running in AWS. The cluster is composed of 6 machines, 2 masters and 4 slaves. I am having problem ...
    Giusto MicheleGiusto Michele
    Mar 6, 2015 at 4:30 pm
    Mar 10, 2015 at 4:08 pm
  • Congrats, Sean. -- Thanks & Regards, Anil Gupta
    Anil guptaAnil gupta
    Mar 26, 2015 at 6:07 pm
    Mar 27, 2015 at 1:30 pm
  • Hi all, I try to use Prefix Filter on hbase shell. It throws an exception. I do not understand its reason. Could you help me ? scan 'table1',{FILTER = "PrefixFilter('Row1')", LIMIT = 1} ROW ...
    Talat UyarerTalat Uyarer
    Mar 25, 2015 at 8:48 am
    Mar 26, 2015 at 12:10 am
  • HI All, I am new to hbase shell and don't know this is normal or not. When I run a hbase command it return all kind of information like java libs etc before a result was return. Please see screen ...
    Garry ChenGarry Chen
    Mar 25, 2015 at 12:45 pm
    Mar 25, 2015 at 4:47 pm
  • Hello, We bulk load our table and during that process, pre-split regions to optimize load across servers. The number of regions build up and we manually are merging them back. Any merge of two ...
    Abe WeinogradAbe Weinograd
    Mar 23, 2015 at 1:56 pm
    Mar 24, 2015 at 3:12 am
  • I’m trying to run the standalone HBase with the Zookeeper that it launches, on a Mac I’ve carefully gone through the quickstart and get the error below. I’ve also done the following things to try to ...
    Pat FerrelPat Ferrel
    Mar 21, 2015 at 7:45 pm
    Mar 22, 2015 at 5:47 pm
  • Hi, I'm trying to use HBaseStorage to read data from HBase 1. I do persist smth to hbase each day using hbase-client java api 2. using HBaseStorage vis oozie Now I failed to read persisted data using ...
    Serega SheypakSerega Sheypak
    Mar 18, 2015 at 10:14 pm
    Mar 19, 2015 at 7:54 pm
  • Hello, I'm fairly new to HBase so would be grateful for any assistance. My project is as follows: use HBase as an underlying data store for an analytics cluster (powered by Apache Spark). In doing ...
    Gokul BalakrishnanGokul Balakrishnan
    Mar 4, 2015 at 5:48 am
    Mar 5, 2015 at 5:12 pm
  • Hi, experts I am using HBase0.98.10 and have 3 problems about BucketCache configuration. First: I read the reference guide of Apache HBase to learn how to config BucketCache. I find that when using ...
    Mar 1, 2015 at 8:58 am
    Mar 3, 2015 at 5:32 am
  • Hello- Our master process started consuming a large amount of CPU (75% of box) several days back and hasn't stopped. I have 2 questions: 1) what is it doing (stack dump and log below) 2) is it safe ...
    Ted TuttleTed Tuttle
    Mar 26, 2015 at 7:19 pm
    Mar 28, 2015 at 6:22 am
  • Hello: If I am unable to do JAVA coding and prefer HBase shell for HBase works/interactions, will I be able to do all operations? i.e. Is JAVA coding (Client API) needed to do something in HBase ...
    Sudeep PandeySudeep Pandey
    Mar 13, 2015 at 3:28 pm
    Mar 13, 2015 at 5:50 pm
  • HI, i tried to connect to local deployed hbase with my codes below, but can't connect to it successfully. and attach the log data i can see from hbase side. if anyone give me any tip on it, will be ...
    James TengJames Teng
    Mar 27, 2015 at 7:47 am
    Mar 31, 2015 at 3:05 am
  • I am struggling for getting my HBase shell running. It throws me the above exception in subject line. I have checked that hbase-site.xml matches perfectly with hadoop one. Please help. I am attaching ...
    Mar 20, 2015 at 3:17 pm
    Mar 20, 2015 at 10:32 pm
  • Hi, I have 2 clusters running HBase, and I want to export a snapshot from cluster A to cluster B. When I am doing exportSnapshot I am getting, because it is searching ...
    Akmal AbbasovAkmal Abbasov
    Mar 17, 2015 at 11:39 am
    Mar 17, 2015 at 4:50 pm
  • I am looking to see how often I will need to add RegionServers, etc. based on the amount of data entering HBase. Is there a way to get the size on disk of a row or an average across all rows? I want ...
    Mark TseMark Tse
    Mar 16, 2015 at 7:28 pm
    Mar 17, 2015 at 5:10 am
  • We ran a hbase cluser with version 0.98.1+cdh5.1.0 and with auto compaction. I have noticed a few times that compaction stuck under the following circumstances. 1. Some server in the cluster is hard ...
    Chen SongChen Song
    Mar 16, 2015 at 2:55 pm
    Mar 16, 2015 at 5:11 pm
  • Hi everyone, When I do a scan on a table with about 700 rows (about 50 columns each), the RegionServers will systematically go offline one at a time until all the RegionServers are offline. This is ...
    Mark TseMark Tse
    Mar 6, 2015 at 9:52 pm
    Mar 9, 2015 at 5:53 pm
  • Hi, Stack Still thanks much for your quick reply. The reason that we don't shrink the heap and allocate the savings to the offheap is that we want to cache datablocks as many as possible. The memory ...
    Mar 3, 2015 at 9:03 am
    Mar 4, 2015 at 5:18 am
  • Hi all, We're looking into using TableSnapshotInputFormat on a salted table, and we need to push down conditions on the rest of the rowkey to each bucket (using hive with my patch for ...
    Andrew MainsAndrew Mains
    Mar 27, 2015 at 6:56 pm
    Mar 28, 2015 at 6:19 am
  • Hi guys, I'v tried to install HBASE 0.98 on a CentOS linux server. I tried different settings but always get one specific Zookeeper error message. my final configuration is as follow /etc/hosts ...
    Ali RahmaniAli Rahmani
    Mar 25, 2015 at 7:05 pm
    Mar 26, 2015 at 6:51 am
  • Hi, I have hbase scan with some filters. If the scan going through 1 million rows then the filters reduce it down to 100 rows to send back to the client. How can I know that the scan went through 1 ...
    Mar 18, 2015 at 10:37 pm
    Mar 20, 2015 at 1:45 am
  • Hi, Suppose I have enabled encryption in a column family by setting "ENCRYPTION = 'AES'". Now I want to disable encryption for this column family. How to do this through HBase Shell? As per alter ...
    Pankaj krPankaj kr
    Mar 19, 2015 at 6:55 am
    Mar 19, 2015 at 11:13 am
  • Hi, I am using hbase connection pooling using HConnection hConnection=HConnectionManager.createConnection(conf); I see most of method of HConnectionManager goes to depreciated. Please provide to me ...
    Mar 18, 2015 at 2:46 pm
    Mar 18, 2015 at 10:57 pm
  • Hi All, I am new to hbase and using Amazon EMR with hbase hbase-0.94.18 install. Always getting "hbase(main):002:0 15:59:13.023 [main-SendThread(ip-172-31-12-99.ec2.internal:2181)] DEBUG ...
    Garry ChenGarry Chen
    Mar 18, 2015 at 4:47 pm
    Mar 18, 2015 at 5:23 pm
  • Hi, finally I met HBase perfomance problems :( I see this message: org.apache.hadoop.hbase.regionserver.wal.FSHLog Slow sync cost: 345 ms, current pipeline: [] in log file sometimes [] contains ...
    Serega SheypakSerega Sheypak
    Mar 13, 2015 at 9:47 am
    Mar 14, 2015 at 9:07 am
  • ​I am unable to launch the mapreduce copytable job on hbase (src cluster to copy a table across to dest cluster 0.98.6 In our current src cluster, zookeeper is being managed by hbase with ...
    Mar 11, 2015 at 7:48 pm
    Mar 12, 2015 at 7:48 am
  • Hi, I'm using Hbase running on 9 nodes. My table distributed to 12 regions and contains about 113M records. I'm running pagination query using /Filter pageFilter = new ...
    Mar 4, 2015 at 3:54 pm
    Mar 9, 2015 at 5:25 pm
  • See St.Ack
    Michael StackMichael Stack
    Mar 5, 2015 at 6:00 pm
    Mar 6, 2015 at 9:52 pm
  • Hi, experts. I am studying how to program an Endpoint. The material I have is a book "HBase The Definitive Guide(3rd)". I also read the blog ...
    Mar 5, 2015 at 3:03 am
    Mar 6, 2015 at 1:15 am
  • When using TableInputFormat to make HBase data available to map/reduce jobs we can use the settings SCAN_TIMERANGE_START and SCAN_TIMERANGE_END to specify a time range during scan. Is it possible to ...
    Felipe Sodré SilvaFelipe Sodré Silva
    Mar 4, 2015 at 1:26 am
    Mar 4, 2015 at 6:25 pm
  • My tomcat based REST API application is not able to process request due to above mentioned error. I have tried following things so far : 1. checking if all the jar files are available or not 2 ...
    Chandrashekhar KotekarChandrashekhar Kotekar
    Mar 3, 2015 at 5:10 am
    Mar 3, 2015 at 6:39 pm
  • Hi all, i have encountered the problem connecting to hbase via phoenix client, below is the debug log i got from the client side.and the most notable error should be retrying after sleep of 10013 ...
    James TengJames Teng
    Mar 31, 2015 at 7:10 am
    Mar 31, 2015 at 6:15 pm
  • Hello hbase users, I have a requirement to migrate data between CDH4 and CDH5. To migrate data from CDH4 to CDH5, I am using export - distcp - import hbase tools and its very well. But the same ...
    Arun MishraArun Mishra
    Mar 31, 2015 at 3:30 am
    Mar 31, 2015 at 4:11 am
  • Every so often using the reverse key scan on the thrift API seems to throw an error We have even isolated to specific record. What is surprising to us is that when we make are start row the very next ...
    Abraham TomAbraham Tom
    Mar 28, 2015 at 2:05 am
    Mar 28, 2015 at 2:11 am
  • You've missed HBASE-12972 and HBASE-12975. See the discussion on those issues why 1.1.0. -- Best regards, - Andy Problems worthy of attack prove their worth by hitting back. - Piet Hein (via Tom ...
    Andrew PurtellAndrew Purtell
    Mar 25, 2015 at 10:08 pm
    Mar 26, 2015 at 7:40 pm
  • I’m planning to develop a dashboard which shows reads/writes on per table basis. Just wondering, do we already have any application, which supports giving that information ? If not, what should i ...
    Mar 24, 2015 at 12:33 am
    Mar 24, 2015 at 12:49 am
  • Hello, I am running a ycsb instance to insert data into hbase.All was well when this was against hbase 0.96.1.Now I am trying to run the same program to another cluster which is configured with hbase ...
    Nishanth SNishanth S
    Mar 19, 2015 at 6:00 pm
    Mar 23, 2015 at 3:47 am
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86 users for March 2015

Nick Dimiduk: 23 posts Ted Yu: 23 posts Michael Segel: 18 posts Dejan Menges: 17 posts Nicolas Liochon: 14 posts Jean-Marc Spaggiari: 13 posts Michael Stack: 13 posts Sean Busbey: 10 posts Andrew Purtell: 8 posts Esteban Gutierrez: 8 posts Kristoffer Sjögren: 8 posts Mike Dillon: 8 posts Serega Sheypak: 8 posts David chen: 7 posts Donhoff_h: 7 posts Lars hofhansl: 7 posts Manoj Murumkar: 7 posts Mikhail Antonov: 7 posts Ocassano: 7 posts Bryan Beaudreault: 6 posts
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