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90 discussions - 534 posts

  • Hi All, My HBase cluster has 8 Region Servers (CDH 4.4.0, HBase 0.94.6). Each Region Server is with the following configuration, 16 Core CPU, 192 GB RAM, 800 GB SATA (7200 RPM) Disk (Unfortunately ...
    Ramu M SRamu M S
    Oct 7, 2013 at 5:02 am
    Nov 1, 2013 at 8:27 am
  • Hi All, We have been running into an RPC deadlock issue on HBase and from investigation, we believe the root of the issue is in us doing cross region increments from a coprocessor. After some further ...
    John WeatherfordJohn Weatherford
    Oct 10, 2013 at 1:43 am
    Oct 15, 2013 at 8:48 pm
  • Hi, I'm write currently a HBase Java programm which iterates over every row in a table. I have to modiy some rows if the column size (the amount of columns in this row) is bigger than 25000. Here is ...
    Oct 24, 2013 at 2:53 pm
    Oct 26, 2013 at 2:27 pm
  • Hello, In the oldest verison of HBase , I can get the HTableInterface by HTablePool.getTable() method. However, in the latest Hbase version0.94.12, HTablePool is deprecated. So, I tried to use ...
    Oct 22, 2013 at 4:38 pm
    Oct 24, 2013 at 8:15 pm
  • I'm trying to load data into hbase using HFileOutputFormat and incremental bulk load but am getting rather lackluster performance, 10h for ~0.5TB data, ~50000 blocks. This is being loaded into a ...
    Harry WayeHarry Waye
    Oct 23, 2013 at 2:58 pm
    Oct 26, 2013 at 1:43 pm
  • Hello everyone in the mailing list. I want to introduce an open-source library Haeinsa which supports multi-row, multi-table transaction on HBase. Haeinsa is client-only library that support ...
    Myungbo KimMyungbo Kim
    Oct 10, 2013 at 6:00 am
    Nov 8, 2013 at 1:07 pm
  • Hello, I want to check the status of each coprocessor, in a given table. Let's say I have 3 CPs and one of them is removed due to some unhandled exception, so I want to see this status (3 deployed, 2 ...
    Wei TanWei Tan
    Oct 21, 2013 at 9:45 pm
    Oct 23, 2013 at 8:55 pm
  • Hi there, I have a cluster running vanilla Hadoop 2.1.1 and am trying to deploy HBase 0.96 on top. At first the master was crapping out with this when I was trying to start it: 2013-10-28 ...
    Oct 28, 2013 at 11:19 pm
    Oct 31, 2013 at 9:11 pm
  • Hi, What is the default value of '*hbase.client.scanner.caching*' for *HBase 0.90.6* version in particular? Is it 1 or 100? Thanks
    A LaxmiA Laxmi
    Oct 20, 2013 at 6:18 pm
    Oct 28, 2013 at 1:05 pm
  • Hi all, The first release candidate of AsyncHBase "post-singularity" is now available for download. AsyncHBase remains true to its initial promise: the API is still backward compatible, but under the ...
    Oct 29, 2013 at 4:58 am
    Dec 24, 2013 at 5:12 pm
  • Hi, I am running in Hbase in pseudo distributed mode. ( Hadoop version - 1.1.2 , Hbase version - 0.94.7 ) I am getting few exceptions in both hadoop ( namenode , datanode) logs and hbase(region ...
    Vimal JainVimal Jain
    Oct 22, 2013 at 7:02 am
    Oct 31, 2013 at 10:21 am
  • Hi All: This could be a stupid question.But here it goes.... We knew that we can use "put" to insert some small files by converting it to bytes first. But for a large file,I think we would better ...
    Jack ChanJack Chan
    Oct 23, 2013 at 4:08 am
    Oct 24, 2013 at 12:24 pm
  • Hi all, I am using the batch method[1] and it states that I will get an array of objects containing possibly null values. So my question is if there is a way on knowing which operation was the one ...
    Renato Marroquín MogrovejoRenato Marroquín Mogrovejo
    Oct 2, 2013 at 10:35 pm
    Oct 3, 2013 at 4:11 pm
  • Hello, I am getting this YADE all the time HBASE_HEAPSIZE=8000 Settings: -ea -XX:+UseConcMarkSweepGC -XX:MaxGCPauseMillis=200 -XX:+HeapDumpOnOutOfMemoryError -XX:+CMSIncrementalMode -XX:+UseParNewGC ...
    Prakash kadelPrakash kadel
    Oct 7, 2013 at 3:32 pm
    Nov 1, 2013 at 3:28 pm
  • Hi, I try to load a big amount of data into a hbase cluster. I've imported successfully up to 3000 Millionen Datasets (KV Pairs). But if I try to import 6000 Millionen I got this error after 60-95% ...
    Oct 20, 2013 at 10:57 am
    Oct 24, 2013 at 2:44 pm
  • Hi, There is a record which size is 30KB on a txt file. When I've written 50,000 records into HBase table, the UI shows that about 400MB of disk is used (not 1,500,00 KB). I don't know why!!!!! Is ...
    Farrokh ShahriariFarrokh Shahriari
    Oct 11, 2013 at 6:58 am
    Oct 20, 2013 at 4:31 pm
  • Is it possible to make schema changes to HBase Table without having to explicitly disable the Table ? ( I want to add new Column Family to existing table). Thanks, Chetan
    Oct 29, 2013 at 4:10 pm
    Nov 5, 2013 at 8:29 am
  • Hi I have a relatively simple situation, As an example I have a table of Users, with first and last name. I set a scan a FilterList and I add a SingleColumnValueFilter, with column ...
    Oct 24, 2013 at 8:55 am
    Oct 25, 2013 at 12:53 am
  • Over the past couple of months we have seen a significant increase in datanode I/O load in our cluster, an increase of 100% in disk read/write rates while our application requests have increased by a ...
    Oct 16, 2013 at 3:47 pm
    Oct 17, 2013 at 6:39 pm
  • Hello everyone, I'm using this tool to export and "import" snapshots from S3: https://github.com/lospro7/snapshot-s3-util/blob/master/src/main/java/com/imgur/backup/SnapshotS3Util.java I'm using this ...
    Adrian SandulescuAdrian Sandulescu
    Oct 8, 2013 at 1:35 pm
    Oct 12, 2013 at 12:26 am
  • Hi all, I trying to start HBase from eclipse by using this tutorial: http://michaelmorello.blogspot.com/2012/06/hbase-096-eclipse-maven.html However I could not find the logs of hbase. If I start ...
    Salih KardanSalih Kardan
    Oct 30, 2013 at 6:42 am
    Nov 4, 2013 at 5:52 am
  • Hi All, I am running HBase 0.94.6 with 8 region servers and getting throughput of around 15K Read OPS and 20K Write OPS per server through YCSB tests. Table is pre created with 8 regions per region ...
    Ramu M SRamu M S
    Oct 25, 2013 at 4:46 am
    Oct 28, 2013 at 6:05 pm
  • I can't get test commands to work with hbase. Could someone help me figure this out? Everything seems to be set up correctly, jps reports that hmaster is running on the master node, hadoop1, and ...
    Oct 25, 2013 at 6:52 pm
    Oct 25, 2013 at 9:08 pm
  • The Phoenix team is pleased to announce the immediate availability of Phoenix 2.1 [1]. More than 20 individuals contributed to the release. Here are some of the new features now available: * ...
    James TaylorJames Taylor
    Oct 25, 2013 at 12:25 am
    Oct 28, 2013 at 6:41 pm
  • Hi All, Today I have 1 of 9 region servers down because of zookeeper timeout, this is the log: 2013-10-23 07:41:34,139 INFO org.apache.hadoop.hbase.regionserver.Store: Starting compaction of 4 ...
    Henry HungHenry Hung
    Oct 23, 2013 at 3:42 am
    Oct 23, 2013 at 8:46 am
  • Hi, Can someone help how to query on partial rowkey. For example I have rowkey like below: Name1|accounts|t120 Name2|HR|t110 Etc., I need to get all records which has "accounts" in the rowkey. Pls ...
    Oct 16, 2013 at 8:09 am
    Oct 16, 2013 at 5:30 pm
  • What happened to the "hbase.master" parameter? I dont see it in the docs... was it deprecated? It appears to still have an effect in 94.7 -- Jay Vyas http://jayunit100.blogspot.com
    Jay VyasJay Vyas
    Oct 3, 2013 at 11:43 pm
    Oct 4, 2013 at 4:23 pm
  • Hi, We are using hbase-0.94.1 While trying to access hbase with API all of suddenly we got following exception in our production cluster: "from org.apache.hadoop.hbase.zookeeper.ZooKeeperNodeTracker ...
    Sandeep LSandeep L
    Oct 3, 2013 at 6:45 am
    Oct 3, 2013 at 1:26 pm
  • Hi I tried to run the hadoop rowcount job First at all, I just notice that the command is rowcounter and not rowcount. secondly, I got the following error when running it: hadoop jar hbase-0.90.4.jar ...
    Sznajder ForMailingListSznajder ForMailingList
    Oct 30, 2013 at 10:37 am
    Nov 12, 2013 at 4:58 pm
  • Hi everybody, I've been attempting to export a snapshot from one of my HBase clusters to the other. Both clusters are running 0.94.6-cdh4.4.0. I am able to successfully export a very small collection ...
    Cooper BetheaCooper Bethea
    Oct 29, 2013 at 10:06 pm
    Oct 29, 2013 at 11:09 pm
  • Hi All,I wanted to know what are the various tools and strategies to ingest the data into HBase.I mean should we consider following options (based on use case requirements):- Map Reduce to store the ...
    Oct 29, 2013 at 9:25 pm
    Oct 29, 2013 at 10:17 pm
  • Hi, We are using HBase 0.94.1. We are facing a strange issue form long time not at got any proper solution. Here is the issue:Whenever one region server in cluster goes down, whole HBase wont respond ...
    Sandeep LSandeep L
    Oct 28, 2013 at 7:22 am
    Oct 29, 2013 at 3:47 am
  • Hello all, I have a couple of questions for HBase. 1. Is there any way to find out by how much time the replication is lagging on the peer cluster or even primary cluster is ok. 2. Say replication is ...
    Hdev mlHdev ml
    Oct 28, 2013 at 7:10 pm
    Oct 29, 2013 at 1:04 am
  • Hi Folks, New to NOSQL designing data model for primary care system. i have normalized sample DB relationship model e.g. HBASE-0.94.0 Patient table: ============ 1) Patient_id - PK 2) Added_BY 3) ...
    Oct 28, 2013 at 3:47 pm
    Oct 28, 2013 at 10:08 pm
  • Hi, I am running HBase 0.94.6 (cdh-4.4.0) with 25 region servers. I am testing a scenario to read and write only from/to RAM. I have the following settings Table precreated with 25 regions. HFile ...
    Vinay KashyapVinay Kashyap
    Oct 22, 2013 at 11:48 am
    Oct 25, 2013 at 3:06 pm
  • Hi all, Recently, i read the source of HBase's HLog, and i got some questions that puzzled me a lot. here there are: 1 why use reflection to init a SequenceFile.Writer in SequenceFileLogWriter? i ...
    Wukang LinWukang Lin
    Oct 24, 2013 at 3:50 pm
    Oct 24, 2013 at 5:30 pm
  • Hi, I am running Hbase in pseudo distributed mode.( Hbase 0.94.7 and Hadoop 1.1.2). I am getting certain exceptions in Hadoop's namenode and data node files which are :- Namenode :- 2013-10-18 ...
    Vimal JainVimal Jain
    Oct 18, 2013 at 10:23 am
    Oct 20, 2013 at 8:18 pm
  • How are the timestamps associated with cell versions within HBase similar/different to the long values that I get using System.currentTimeMillis() in Java? If I print both, the hbase timestamp long ...
    Hrishikesh PHrishikesh P
    Oct 18, 2013 at 7:56 pm
    Oct 18, 2013 at 9:16 pm
  • Hello all, We are looking at a solution for HBase backup, recovery and replication for DR We did take a look at the HBase replication, but we are not sure whether it is being used at large. Our data ...
    Hdev mlHdev ml
    Oct 17, 2013 at 7:53 pm
    Oct 17, 2013 at 11:18 pm
  • Hi, I found that there is no master znode under /hbase in zookeeper. Actually, the /hbase directory is not even created after just start the master (Based on Log and webUI, the master is up fine) ...
    Tianying ChangTianying Chang
    Oct 10, 2013 at 5:47 pm
    Oct 11, 2013 at 12:38 am
  • Ive noticed that alltogether removing the 127* addresses from my /etc/hosts fixes my hbase configuration so that my client can create tables without failing and the hmaster initialies fully. Anyone ...
    Jay VyasJay Vyas
    Oct 2, 2013 at 3:20 pm
    Oct 3, 2013 at 12:27 pm
  • Hi all I am getting the error below while starting hbase (hbase 0.94.11). I guess since hbase cannot connect to hadoop, I get this error. *java.lang.RuntimeException: Failed suppression of fs ...
    Salih KardanSalih Kardan
    Oct 25, 2013 at 1:11 pm
    Oct 31, 2013 at 8:27 pm
  • Hi all I am getting the error below while starting hbase (hbase 0.94.11) *java.lang.RuntimeException: Failed suppression of fs shutdown hook: Thread[Thread-8,5,main] at ...
    Salih KardanSalih Kardan
    Oct 25, 2013 at 2:47 pm
    Oct 25, 2013 at 8:58 pm
  • Hi, I'm trying to get a Hbase 0.96 install to work with with Hadoop 2.2. The region servers seems to be running fine, though the HMaster exits with the following stacktrace. 2013-10-23 16:31:05,206 ...
    Paul HonigPaul Honig
    Oct 23, 2013 at 5:09 pm
    Oct 24, 2013 at 9:57 am
  • Hi, I would like to fetch data from hbase table using map reduce export API. I see that I can fetch data using start and stop time, but I don't see any information regarding start and stop row key ...
    Oct 21, 2013 at 9:41 pm
    Oct 22, 2013 at 2:33 pm
  • hbase-0.96.0 is now available for download [0]. Apache HBase is a scalable, distributed data store that runs atop Apache Hadoop. The hbase-0.96.0 release has been more than a year in the making and ...
    Michael StackMichael Stack
    Oct 19, 2013 at 8:29 pm
    Oct 22, 2013 at 4:12 am
  • Hi, I have configured Hbase in pseudo distributed mode. I have only one table in hbase (event_data). When i run following command it shows that this table has utilized 8.38 GB. Command :- ...
    Vimal JainVimal Jain
    Oct 17, 2013 at 12:46 pm
    Oct 20, 2013 at 5:10 pm
  • Hi all, Our HBase is slowing down because of lots of disk reads. We are trying to analyze it. We have lots of real time random reads. And We found that HBase is constantly reading from disk instead ...
    Vaibhav PuranikVaibhav Puranik
    Oct 18, 2013 at 10:20 pm
    Oct 19, 2013 at 12:32 am
  • Moving to user@hbase.apache.org. HBASE-8912 is still unresolved, and 0.94.13 is just the targeted version presently. Are you certain this is the exact issue you're hitting? I believe you can ...
    Harsh JHarsh J
    Oct 17, 2013 at 9:44 am
    Oct 17, 2013 at 8:05 pm
  • I'm setting up a Hbase cluster on a cloud infrastructure. HBase version: 0.94.11 Hadoop version: 1.0.4 Currently I have 4 nodes in my cluster (1 master, 3 regionservers) and I'm using YCSB (yahoo ...
    Thanasis NaskosThanasis Naskos
    Oct 4, 2013 at 9:08 am
    Oct 4, 2013 at 1:08 pm
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122 users for October 2013

Ted Yu: 72 posts Vladimir Rodionov: 32 posts Jean-Marc Spaggiari: 24 posts Ramu M S: 19 posts Lars hofhansl: 18 posts Michael Segel: 16 posts Vimal Jain: 15 posts John: 13 posts Michael Segel: 12 posts James Taylor: 9 posts Tsuna: 9 posts Yonghu: 9 posts A Laxmi: 8 posts Dhaval Shah: 8 posts Harry Waye: 8 posts Jean-Daniel Cryans: 8 posts Adrien Mogenet: 6 posts Anil gupta: 6 posts Asaf Mesika: 6 posts Gary Helmling: 6 posts
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