1. Is HBase stable and production-ready? stackoverflow.comFor folks who have deployed HBase on their own clusters, do you feel that it's sufficiently stable for production use? What types of troubles or issues have you run into? I ... |
2. secondary index on column store dbs stackoverflow.comIs there any column store database that supports secondary index ? I know HBase does, but it's not there yet. Haggai. |
3. Looking for a good HBase tutorial stackoverflow.comI'm looking for a good and tested HBase tutorial, where I can find one? |
4. i got this exception while i run hbase client stackoverflow.com |
5. Using Hbase with C# stackoverflow.comHow can I use a Hbase database with C#/VB.NET ? (use=connect, query, get the result, insert, update, delete) I don't find useful answers with google. |
6. How to read data from Hbase? stackoverflow.comHi there I'm use to SQL, but I need to read data from a HBase table. Any help on this would be great. A book or maybe just some sample code ... |
7. How to improve HBase Scanner? stackoverflow.comHo do I configure HBase so that the scanner only retrieves a number of records at a time? Or how do I improve the scanner when the database contains a lot ... |
8. web Interface for HBase data access stackoverflow.comI want a web interface for viewing data in HBase (like phpMyAdmin is for mySQL but for HBase). Are there any existing solutions/tools out there? |
9. Referential Integrity and HBase stackoverflow.comOne of the first sample schemas you read about in the HBase FAQ is the Student-Course example for a many-many relationship. The schema has a Courses column in the Student table ... |
10. Problem with zohmg data import into hbase stackoverflow.com
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11. send Hbase batch Puts compressed? stackoverflow.comIs there a way to send a batch of hbase puts, compressed. I'm setting auto flush to false and I'm using a bufferSize of 2MG. Is there a way to compress the ... |
12. Retrieving information from aggregated weblogs data, how to do it? stackoverflow.comI would like to know how to retrieve data from aggregated logs? This is what I have: |
13. Problem with HBase in classpath stackoverflow.com
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14. multiple or bulk fetch or get in HBase Java client? stackoverflow.comDoes the HBase Java client support multi-get (aka bulk fetch), kind of like memcached multi-get? I've scoured the docs and the Internet for at least an hour and couldn't find ... |
15. Hbase and 1- Many Relation stackoverflow.comI have one question which can be best described by the following scenario. Suppose I have three tables BaseCategory,Category and products. If i am thinking in terms of RDBMS then the relationship ... |
16. How do you use a custom comparator with SingleColumnValueFilter on HBase? stackoverflow.comI am trying to filter rows from a HBase table using two SingleColumnValueFilter objects to bring back all records that fall within a range of long values for the ... |
17. is there a way to rollback hbase stackoverflow.comIs there a way to rollback values to a previous stage at cell level (row level might work also) I imported a file with wrong data and I just need to go ... |
18. getting rid of Hbase configuration deprecated warning stackoverflow.comI'm getting this error message in my log file |
19. How to store complex objects into hadoop Hbase? stackoverflow.comI have complex objects with collection fields which needed to be stored to Hadoop. I don't want to go through whole object tree and explicitly store each field. So I just ... |
20. Using HBase to store time series data stackoverflow.comWe are trying to use HBase to store time-series data. The model we have currently stores the time-series as versions within a cell. This implies that the cell could end up ... |
21. Difference between a row-oriented and column-oriented databases in dealing information retrieval stackoverflow.comRecently, I started working on HBase (one of the column-oriented databases). While going through the source code, one question keeps popping in my head. Thought of asking this. My question is, how ... |
22. Data Visualization & HBase stackoverflow.comGreetings, I have been looking through the questions on this site and I haven't found any related questions. I have currently built a Flex/PHP/MySQL app where I take an extract from my Hadoop ... |
23. HBase binary key type via Stargate stackoverflow.comis there a way to request a binary key type (int, byte array) instead of string using HBase's Stargate? |
24. HBase record lost upon closing stackoverflow.comHI, I install Hbase 0.89 (oct release) using local filesystem, for dev and test purpose. I created few tables and rows using hbase shell. somehow whenever i restart hbase, no data/table ... |
25. hbase error: "10/12/26 06:48:07 INFO ipc.HbaseRPC: Server at /127.0.0.1:58920 could not be reached after 1 tries, giving up." stackoverflow.comDose anyone know what's wrong with hbase? I am using vm image of cloudera distribution for hadoop, previously it was working fine but now giving me this error after every second ... |
26. Storing objects and relationships between them in HBase stackoverflow.comI'm starting a personal project that involves storing a large database of objects and the relationships between objects. I chose Hadoop and HBase because it will need to be multi node ... |
27. HBase via JRuby suggestions? stackoverflow.comThe HBase shell is now based on jirb, the JRuby implementation of the interactive ruby shell irb. Are there any nice tricks for interacting with HBase in JRuby ... |
28. Replicating a standalone HBase 0.2 deployment stackoverflow.comAs far as I'm aware the current stable release of HBase, 0.2, does not support replication, although it is being built into the next version. How would you recommend replicating ... |
29. HBase NoServerForRegionException? stackoverflow.comI am getting this exception when for a while i didn't communicated with HBase: org.apache.hadoop.hbase.client.NoServerForRegionException: Timed out trying to locate root region because: Connection refused is this something related with session expiry, if ... |
30. HBase Column RegEx through Thrift from C# stackoverflow.comI'm using the thrift interface (http://apache.mesi.com.ar//incubator/thrift/0.5.0-incubating/) to access HBase on my cluster. I can connect, get and display records; Use the start and stop dates. The documentation (http://hbase.apache.org/docs/r0.89.20100924/apidocs/org/apache/hadoop/hbase/thrift/doc-files/Hbase.html#Fn_Hbase_scannerOpenWithStop) ... |
31. HBase connection exception stackoverflow.comI try to run HBase in a Pseudo-Distributed mode. But it doesn't work after I set hbase-site.xml. Each time I try to run a command inside hbase shell I get this ... |
32. HBase java.lang.OutOfMemoryError stackoverflow.comI'm having the following issue with Hbase. I have a script which starts the HBase shell and inserts many rows into a table with a single column. I have tried inserting 10,000 ... |
33. java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/MasterNotRunningException stackoverflow.comI created by own HBase java client code, but I am having a really difficult time compiling it and getting it to run. I am compiling from the command line, and ... |
34. Looking for proper hbase-site.xml hbase-default.xml config example for HBase client stackoverflow.comI am trying to connect to an HBase node from a Java application. HBaseConfiguration is key, but the available Javadoc and documentation is really poor and insufficient. Does anyone have proper examples ... |
35. Help: org.apache.hadoop.hbase.MasterNotRunningException 12.34.56.78:60000 stackoverflow.comI am writting a small Java application to connect to a HBase node. The ZooKeeper connection is successful, but later, I systematically get the following error (I have changed my IP ... |
36. ZookeeperConnectionException in HBase Standalone mode stackoverflow.comI'm using hbase-0.90.0. I'm running it in standalone mode. While trying to execute any commands from "hbase shell" it is giving me the following error. hbase(main):003:0> status 'detailed' ERROR: org.apache.hadoop.hbase.ZooKeeperConnectionException: org.apache.hadoop.hbase.ZooKeeperConnectionException: org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode ... |
37. HBase bulk load spawn high number of reducer tasks - any workaround stackoverflow.comHBase bulk load (using configureIncrementalLoad helper method) configures the job to create as many reducer task as the regions in the hbase table. So if there are few hundred regions then ... |
38. ActiveMQ with HBase persistence stackoverflow.comIs it possible to use HBase as persistence database for ActiveMQ? Anyone had done something similar? |
39. Any idea on how to write an Hadoop InputFormat / OutputFormat for Hbase stackoverflow.comIs anyone have some experience of writing a Hadoop InputFormat/OutputFormat that get their date from Hbase ? I'd like something more specific than the HbaseTableInputFormat because my idea is to return my ... |
40. what is gora and its features? stackoverflow.comwhat is gora? what does it do for us? how it work with hbase? which features dose it have? do you know a good essay or web page which can help me? ... |
41. ERROR: org.apache.hadoop.hbase.MasterNotRunningException: null+hbase+hadoop stackoverflow.com
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42. Is it possible to set where condition to hbase row-keys? stackoverflow.comIs it possible to set where condition to hbase row-keys? Suppose I have row-keys 1,2,3,4,5... I need to query like "where row-key<4"?? |
43. Problem with extending HBase Put stackoverflow.comI have a problem while trying to extend HBase Put class. I have a code like this |
44. Which is better HBASE or Neo4j stackoverflow.comHi guys i am analyzing few things for doing a Proof of concept. I want to convert a Employee payroll database to Nosql. Which is better to use HBASE or Neo4j? Or ... |
45. HBase: How does replication work? stackoverflow.comI'm currently evaluating HBase as a Datastore, but one question was left unanswered: HBase stores many copies of the same object on many nodes (aka replication). As HBase features so-called strong ... |
46. ETL associated with HADOOP database Hbase? stackoverflow.comHI can anybody tell me which are the ETL Tools which can be used with Hbase which is the database of hadoop? I mean to say like how the data in ... |
47. Hbase multiple metrics stackoverflow.comPossible Duplicate:Hi, i want to have multiple metrics per dimension on my HBase table. For example 3 metrics for a bunch of 20 dimensions. What ... |
48. Mutiple maps followed by one reduce with Hadoop and HBase stackoverflow.comI have several Hbase tables. I wish to run a map task on each table (each map being a different |
49. LIFO / sorted database design pattern stackoverflow.comI want to store data (as an archive) in two seperate lists one is to be a sort of LIFO stack where new data just gets pushed on top and the ... |
50. hbase command versus hadoop command stackoverflow.comThe little bit of description of hbase in the O'Reilly Elephant book shows the use of the 'hbase' command line wrapper to run a map-reduce job using hbase. However, our code has ... |
51. HBase one to many 'relationship' storage stackoverflow.comI'm pondering the best way to implement a one to many relationship in HBase. Say an ACCOUNT has many TRANSACTION(s). Is it better to a) Add columns to a transactions: column family on ... |
52. What to use for real-time log aggregation and quering? stackoverflow.com
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53. NativeException: org.apache.hadoop.hbase.MasterNotRunningException: null stackoverflow.comI have started Hadoop and Hbase successfully. But when I try this operation like, ./hbase shell HBase Shell; enter 'help' for list of supported commands. Version: 0.20.3, r902334, Mon Jan 25 13:13:08 PST 2010 hbase(main):001:0> ... |
54. HBase - Column family stackoverflow.comI'm a beginner in HBase. I need to design my table. I want to play with the following information: At the date XX-XX-XXXX, the word 'HELLO' is in document 2,3,4 and the weight of ... |
55. Hbase storage engine stackoverflow.comAny idea about the storage engine used in hbase? |
56. Hbase-database configuration stackoverflow.comI'm new to Hbase.I have created a table using hbase shell.By default it's storing on /tmp folder. I want to change the storage location. where I should change the configuration. Thanks in ... |
57. hbase database creation stackoverflow.comI m new to hbase.. There are some errors while creatin table in hbase |
58. Get all families in hbase stackoverflow.comI have a hbase table with Rows: word, Families: dateI want to get a scanner for all the words at the date 'd', how I can do this? So ... |
59. How to use HBase? stackoverflow.comI need help regarding database. I am trying to create a Java project which uses the data from 25 different XML files to display a graph. My question is can the ... |
60. Is there any C library for HBase? stackoverflow.comI need HBase to store large amount of indexing keywords and values (currently using Redis), but I can't find any C library to connect, write or read HBase. I Googled, but found ... |
61. Why won't Gradle pass dependency to compiler at testCompile phase? stackoverflow.comRunning Gradle 1.0-milestone-3. I have a sub-project that depends on the following: |
62. HBase: How to delete region stackoverflow.comDue to legal issues I need to delete old data from HBase. I found a way to split the region using my criteria and by that moving the old data to the ... |
63. Will using hadoop 20-append with hbase 90.3 break? stackoverflow.comTrying to install hbase, but the word on the street is that if I don't use a hadoop from the 20-append branch, I'll lose data. This tutorial says ... |
64. HBase: how to filter by "key not start with" stackoverflow.comusing PrefixFilter("word") it is possible to filter all keys which start with "word". I am trying to get the opposite, all key which not start with "word". Is it a filter which ,match ... |
65. What is meant by sparse data/ datastore/ database? stackoverflow.comHave been reading up on Hadoop and HBase lately, and came across this term- HBase is an open-source, distributed, sparse, column-oriented store...What do they mean by sparse? Does it have ... |
66. How to connect to remote HBase in Java? stackoverflow.comI have a standlone HBase server. This is my hbase-site.xml: |
67. CompressionTest for LZO fails stackoverflow.comI sincerely thank you for reading my post. I'm trying to install LZO 2.03 compression codec on HBase on my server (running Xeon CPUs). I'm currently running Hadoop 0.20.1 with HBase 0.90.2. I've followed ... |
68. hbase thrift api has method like HBaseAdmin.modifyColumn? stackoverflow.comis there a method in hbase thrift api that like HBaseAdmin.modifyColumn ? i can't find any method contain "modify" in thrift schema |
69. HBase & Mahout - Using HBase as a Datastore/source for Mahout - Classification stackoverflow.comI'm working on a large text classification project and we have our text data (simple messages) stored in HBase. We have two problems, first we would like to use HBase as ... |
70. HBase filter inheritance consultation stackoverflow.comI need a filter which is a bit like TimestampsFilter except that it takes a time frame and applies every row with timestamp within this frame. This is my implementation: |
71. Hbase Log shows user-level KeeperException messages stackoverflow.comI have been getting INFO level log messages as below: 2011-07-31 15:11:02,910 INFO org.apache.zookeeper.server.PrepRequestProcessor: Got user-level KeeperException when processing sessionid:0x1317f82af4e0004 type:create cxid:0x1 zxid:0xfffffffffffffffe txntype:unknown reqpath:n/a Error Path:/hbase Error:KeeperErrorCode = NodeExists for /hbase 2011-07-31 ... |
72. Structured and Unstructured indexing - Lucene and Hbase stackoverflow.comI have a set of 200M documents I need to index. Every document has a free text and additional set of sparse metadata information (100+ columns). It seems that the right tool ... |
73. hbase data modeling for activity feeds/news feeds/timeline stackoverflow.comI decided to use HBase in a project to store the users activities in a social network. Despite the fact that HBase has a simple way to express data (column oriented) ... |
74. How can I prevent Hbase from overwriting existing values in cells? stackoverflow.comCan anyone explain how to prevent hbase from updating the cell in the concrete column and key if the value already exists? |
75. Is it faster to compare String's, or byte arrays? stackoverflow.comSo, might sound like an odd question, but is it faster to compare 2 String's, or byte[]'s (using Arrays.equals())? I'm working with Hadoop/Hbase, and I get byte[] as the ... |
76. Accessing HBase running in VM with a client on host system stackoverflow.comI try to write some data to hbase with a client program HBase @ Hadoop runs in a preconfigured VM from Cloudera @ ubuntu. The Client runs on the system hosting the VM ... |
77. Java Connect to HBase(mutiple zookeeprs?) stackoverflow.comI am writing a program in Java connecting HBase. I currently have multiple zookeepers in my enviroment. Currently I use: |
78. How to cast a java.lang.Class |
79. Difference between String.getBytes() and Bytes.toBytes(String data) stackoverflow.comI'm writing a Hadoop/HBase job. I needed to transform a Java |
80. Hbase Stargate REST Interface: How to encode a scanner with filter in XML? stackoverflow.comI'm using Hbase over Stargate and want to use a scanner with certain filters. In java or thrift, this would be no problem, but I don't find any advice how to ... |
81. Hbase regionservers stackoverflow.comWe have installed hadoop cluster. We want to use HBase over it. My hbase-site.xml is below |
82. Is it better to send data to hbase via one stream or via several servers concurrently? stackoverflow.comI'm sorry if this question is basic(I'm new to nosql). Basically I have a large mathimatical process that I'm splitting up and having different servers process and send the result ... |
83. HBase getting all timestamped values for a cell stackoverflow.comi have the following scenario in my hbase instance |
84. Does an HTable increment consider the auto-flush setting? stackoverflow.comI'm trying to improve Hbase throughput for increments. Is it possible to "buffer" several increments (for different rows) by setting autoflush to false and then call |
85. Get value by family in HBase stackoverflow.comRow: FamilyMap for each row.
Is there any ... |
86. How to delete all data from solr and hbase stackoverflow.comhow to delete all data from solr by command . We are using solr with lily, means hbase . so can you tell how to delete data from hbase and solr . |
87. what is best HBase client API for java stackoverflow.comIm working on a project in which i got to use hbase.The project is in java based. I need to know what is the best hbase client api for java. |
88. Is there any way while using redis we could write behind to hbase stackoverflow.comAs far as i know redis only write-behind in a binary file. but our software requirement is to write behind to hbase using any compatible distributed maps(redis).Is there any way while ... |
89. Hbase client do not able to connect with remote Hbase server stackoverflow.comi have written a following hbase client class for remote server: |
90. Uncatchable exception NodeJS stackoverflow.comI have an application which writes to a datastore, so I attempt to send an HTTP request out to the datastore (hbase + stargate). ETIMEDOUT exception, which kills the process. I ... |
91. Is there a maximum version number in hbase? stackoverflow.comIf I want to insert in a table: |
92. Why doesn't sending HBase Gangla metrics work from Java with Aspectj AOP? stackoverflow.comI'm trying to do HBase performance monitoring with Aspectj using Hbase metrics and push the results in Ganglia without success. Logging works, so my aspect is executing, but it won't push ... |
93. Importtsv not loading all records stackoverflow.comI'm calling importtsv from within a Java class and for some reason it's not loading all of the records. Not sure if this is an actual importtsv problem or something ... |
94. What is best architecture to store huge videos and lot log file with processed data? stackoverflow.comIt is a research project. We will record lot videos everyday, and metadata with log data would be saved in semantic model, RDF or OWL. The video would be used to ... |
95. what is the volume of Cloudera CDH3 for 50 nodes stackoverflow.comThe free version only support limited 50 nodes. If I use 10 times 2T hard disk for one computer. That means 10*2*50 = 1000T I could save 1000T data, right? Thanks |
96. Why Hbase only return 3 version for a cell no matter I set { VERSION = 100} or not stackoverflow.com |
97. Architecture issues in web services and image storing ? stackoverflow.comExplanation of the scenario : Numerous buyers can register with the Hub(market place).There are numerous suppliers with a personalized application and an independent data storage system(it could be a text file,excel sheet,various ... |
98. HBase KeyValue.getKey() returns extra characters stackoverflow.comthe following hBase code returns some weird characters on the front of my rowKey: "\u0000""\u0014""ei:shrimp:-749…."The prepended weird characters are '\u0000' and '\u0014', and sometimes '\u0016'. I put quotes in the ... |
99. HBase binding to an incorrect address stackoverflow.comI'm attempting to run running HBase in pseudo-distributed mode. I've followed all of the steps in the tutorial. My hbase-site.xml looks like this: |
100. Using HBase for analytics stackoverflow.comI'm almost completely new to HBase. I would like to take my current site tracking based on MySQL and put it to HBase because MySQL simply doesn't scale anymore. I'm totally lost ... |