user@hbase.apache.org discussions for June 2015

29	HConnection thread waiting on blocking queue indefinitely

Hi All, HBase client waits indefinitely for performing any operation. On taking, jstack we saw all the threads waiting on BoundedCompletionService.take() call. Regards, Meeran.

Meeran
Jun 2, 2015 at 12:59 pm
Jul 25, 2015 at 11:11 am

15	How to make the client fast fail

Hi, I have got the Connection object with default configuration, if the zookeeper or HMaster or Region server is down, the client didn't fast fail and it took almost 20 mins to thrown an error. What ...

PRANEESH KUMAR
Jun 10, 2015 at 4:55 am
Jun 24, 2015 at 6:33 am

12	RegionServer 60030 Show All RPC Handler Task is empty

Hi, all We are using 0.98.6-cdh5.2.0, rUnknown And when we visit the web regionserverhost:60030 to see Show All RPC Handler Tasks, found No tasks currently running on this node. But we configure ...

Louis.hust
Jun 26, 2015 at 3:03 pm
Jul 9, 2015 at 8:28 am

11	Scan got exception

Hi, all When I scan a table using hbase shell, got the following message: hbase(main):001:0 scan 'atpco:ttf_record6' ROW COLUMN+CELL ERROR ...

Louis Hust
Jun 30, 2015 at 3:31 am
Jul 9, 2015 at 8:53 am

10	Stochastic Balancer by tables

Hi, I've noticed there are two settings available when using the HBase balancer (specifically the default stochastic balancer) hbase.master.balancer.stochastic.tableSkewCost ...

Nasron Cheong
Jun 18, 2015 at 2:50 pm
Jun 19, 2015 at 7:31 pm

8	HBase shell providing wrong results with startrow(with composite key having String and Ints)

Hi All, I m having a lot of trouble dealing with HBase shell. I am running following query: scan 'CAR_ARCHIVE' , {COLUMNS= 'A', STARTROW = '33078' , LIMIT= 1} ROW COLUMN+CELL ...

Anil gupta
Jun 8, 2015 at 8:57 pm
Jun 15, 2015 at 4:48 am

8	How are version conflicts handled in HBase?

I'm trying to confirm the behavior of HBase when there are concurrent writes to the same cell that happen at the exact same millisecond and not providing a timestamp value to the Put operations ...

Dia Kharrat
Jun 5, 2015 at 12:08 am
Jun 7, 2015 at 12:59 am

7	Potential bugs in HTable In incrementColumnValue method

Hi HBase community, Can anyone confirm that the method incrementColumnValue is implemented correctly? I'm talking about mainly the deprecated method: @Deprecated @Override public long ...

Jerry Lam
Jun 9, 2015 at 3:06 pm
Jun 10, 2015 at 12:32 am

6	How to monitor and control heavy network traffic for region server

Hi all, We are using HBASE 0.96 with Hadoop 2.2.0, recently we found there are some SCAN operations last for more than 1 hours, which lead to heavy network traffic, because some data is not stored at ...

娄帅
Jun 10, 2015 at 5:37 pm
Jun 11, 2015 at 3:30 pm

6	Iterate hbase resultscanner

HI I have weired issue with Hbase Result Scanner This is my scenario i have a list of Resultscanner(ListofScanner) from this Resultscanner list i want extract all results as list of ...

Beeshma r
Jun 8, 2015 at 4:20 pm
Jun 11, 2015 at 1:05 am

5	Hbase: TransactionManager: Create table

Hi, Would like to know if transaction manager supports create-table operation. I learn that it cant be supported. Could you confirm me? http://hbase.apache.org/acid-semantics.html Thanks, Hari

Hariharan_sethuraman
Jun 12, 2015 at 6:09 am
Jun 12, 2015 at 4:10 pm

5	Query on OutOfOrderScannerNextException

Hello, I have a query on OutOfOrderScannerNextException. I am using hbase 0.98.6 with 45 nodes. I have a mapreduce job which scan 1 table for last 1 day worth data using timerange. It has been ...

Arun Mishra
Jun 6, 2015 at 8:49 pm
Jun 7, 2015 at 2:08 pm

5	hfile.bucket.BucketAllocatorException: Allocation too big size

Hi, I'm getting messages like: 015-06-01 14:02:29,529 WARN org.apache.hadoop.hbase.io.hfile.bucket.BucketCache: Failed allocating for block ce18012f4dfa424db88e92de29e76a9b_25809098330 ...

Dejan Menges
Jun 1, 2015 at 2:06 pm
Jun 1, 2015 at 3:07 pm

4	Re: [VOTE] First release candidate for HBase 1.1.1 (RC0) is available

+1 Ran test suite against Java 1.8.0_45 Checked signature Practiced basic shell commands

Ted Yu
Jun 24, 2015 at 8:25 pm
Jun 26, 2015 at 1:01 am

4	Hbase Timestamp Queries

Hi, Can I use HBase's timestamps to gettting rows greater/smaller than this timestamp . Is it possible ? Thanks -- Talat UYARER Websitesi: http://talat.uyarer.com Twitter ...

Talat Uyarer
Jun 9, 2015 at 7:34 am
Jun 10, 2015 at 7:41 am

4	How to do a fast range scan on a prefix

Assume that my keys look like this : bar:0 bar:1 bar:2 baz:0 baz:1 foo:0 foo:1 foo:2 How do I do a fast range scan that returns all the rows that begin with "baz:"? Assume that I know nothing about ...

Jeremy p
Jun 5, 2015 at 6:18 pm
Jun 5, 2015 at 7:21 pm

4	zookeeper closing socket connection exception

Hi, I'm running into this issue several times but still not able resolve kindly help me in this regard. I have written a crawler which will be keep running for several days after 4 days of continuous ...

Jeevi tesh
Jun 1, 2015 at 7:15 pm
Jun 2, 2015 at 4:21 pm

4	How to scan only Memstore from end point co-processor

Hi all, Here is our use case, We have a very write heavy cluster. Also we run periodic end point co processor based jobs that operate on the data written in the last 10-15 mins, every 10 minute. Is ...

Gautam Borah
Jun 1, 2015 at 6:17 am
Jun 2, 2015 at 2:35 am

3	hbase 0.94.26 hangs when a datanode is suspended via SIGSTOP

Hi community, I am testing the time to recovery of hbase 0.94.26. 0.94.26 can tolerate region server failures very smoothly. However, it seems client cannot recover when a datanode is suspended ...

Neutron sharc
Jun 17, 2015 at 5:42 pm
Jul 8, 2015 at 6:27 pm

3	2 bucket caches?

Hi, Is it possible to have 2 bucket cache on a single region server? Like L2 and L3? I would like to have L2 offheap and block evicted from L2 going into L3 on SSD. So we already have something like ...

Jean-Marc Spaggiari
Jun 29, 2015 at 6:20 am
Jun 29, 2015 at 4:12 pm

3	Could not reseek StoreFileScanner

hi i got this exception in reduce task when task try to incement table. Jun 27 12:42:56 10.3.72.94 [INFO]-2015/06/27 12:42:56-AsyncProcess.logAndResubmit(713) - #10486, table=table1, attempt=10/35 ...

غلامرضا
Jun 27, 2015 at 10:45 am
Jun 28, 2015 at 5:32 am

3	Hbase master selection doubt

How Hbase uses Zookeeper for Master selection and region server failure detection when Zookeeper is not strictly consistent. Say In Hbase Master selection process, how does a node is 100 % sure that ...

Shushant Arora
Jun 27, 2015 at 2:20 pm
Jun 27, 2015 at 2:57 pm

3	OutOfOrderScannerNextException consistently killing mapreduce jobs

One of our clusters running HBase 0.98.6-cdh5.3.0 used to work (relatively) smoothly until a couple of days ago, when out of the sudden jobs stated grinding to a halt and getting killed upon ...

Mateusz Kaczynski
Jun 25, 2015 at 5:12 pm
Jun 25, 2015 at 6:14 pm

3	Fix Number of Regions per Node ?

Hi, Is it possible to configure HBase to have only fix number of regions per node per table in hbase. For example node1 serves 2 regions, node2 serves 3 regions etc for any table created ? Thanks, ...

Rahul malviya
Jun 18, 2015 at 12:12 am
Jun 22, 2015 at 8:02 pm

3	Where can I find the apidoc for newer version of Hbase?

Hi, I can only find documentations for 0.94 version of Hbase at http://hbase.apache.org/0.94/apidocs/index.html, but where can I find the URL for newer version? Thanks

Guxiaobo1982
Jun 14, 2015 at 1:34 am
Jun 15, 2015 at 4:44 am

3	Hbase Bulk load - Map Reduce job failing

Hi I have map reduce job for hbase bulk load. Job is converting data into Hfiles and loading into hbase but after certain map % job is failing. Below is the exception that I am getting. Error ...

Shashi Vishwakarma
Jun 3, 2015 at 6:15 am
Jun 11, 2015 at 6:02 am

3	Monitor off heap Bucket Cache

Hi, What's the best way to monitor / know how's bucket cache being used, how much stuff is cached there, etc? Our RegionServer can use 32G of heap size, so we exported HBASE_OFFHEAPSIZE to 24G in ...

Dejan Menges
Jun 1, 2015 at 9:24 am
Jun 2, 2015 at 5:20 pm

2	HBase Shell : NoMethodError: undefined method `getTerminal' for Java::Jline::Terminal:Module

Hi, My compilation is successful, HBase-0.98.12.1 [INFO] ------------------------------------------------------------------------ [INFO] Reactor Summary: [INFO] [INFO] HBase ...

Arthur Chan
Jun 17, 2015 at 11:23 pm
Jul 16, 2015 at 8:48 am

2	HBase monitoring

hello! I try to monitor memory of my regionservers. I have HBase 0.98 on CDH 5.3.1. I can see inconsistency between HBase metrics (here is metrics dump from HBase UI): "name" ...

Wojciech Indyk
Jun 24, 2015 at 9:27 am
Jul 7, 2015 at 9:29 am

2	Zookeeper load balancing hbase requests

Hi Team, I have a query , with having an ensemble of zookeeper instances . Does hbase requests get load balanced as against having a single zookeeper instance.? Apart from zookeeper availability is ...

Bharath Kumar
Jun 26, 2015 at 1:48 am
Jun 26, 2015 at 4:50 am

2	question regarding HBASE-7351

Hello, I am using hbase cdh version 0.98.6. I am facing a problem where a disk controller fails on a host and all disk operation kind of hang up on that host. But region server/data node processes ...

Arun Mishra
Jun 24, 2015 at 4:48 am
Jun 24, 2015 at 5:26 pm

2	Rate Limiters in hbase

Does hbase provide time based increment option? Also something like checkAndIncrement? Thanks Regards Mukund Murrali

Mukund murrali
Jun 22, 2015 at 2:06 pm
Jun 23, 2015 at 4:27 am

2	Could not clone a snapshot, complaining the table already exist, although the table does not exist

Hi, I am trying to trying to clone a table from a snapshot, but it always fail with below error. That table does not exist, although I was trying to clone the same table, but failed. I feel that a ...

Tianying Chang
Jun 18, 2015 at 7:38 pm
Jun 22, 2015 at 5:04 am

2	clone table(72TB data) failed with socket timeout

Hi, I am trying to clone a table from a snapshot. The snapshot is reported to be healthy. However, clone table failed with socket time error, shown as below. BTW, the table is huge with 72T data ...

Tianying Chang
Jun 18, 2015 at 5:15 am
Jun 22, 2015 at 1:02 am

2	Is it possible to execute co-processors like cron job?

Hi, Can you please help to see if there is any feature in HBase which will satisfy following? 1) I need something which will be native to HBase and 2) Which will be able to execute some code at ...

Chandrashekhar Kotekar
Jun 19, 2015 at 6:53 am
Jun 19, 2015 at 12:18 pm

2	Has anybody used hbase client 1.0.x in karaf environment

Hi hbase users, [Reposting this issue] Hbase-client 0.94.x is working fine in karaf environment. We are working on a task to use latest/stable hbase-client 1.0.x version. Since the hbase-client ...

Hariharan_sethuraman
Jun 11, 2015 at 5:10 am
Jun 11, 2015 at 3:16 pm

2	HBase client: refreshing the connection

Hi All, We are using 0.94.15 in our Opendaylight/TSDR project currently. We observed put operation hanged for 20 mins (with all default timeouts) and then throws an IOException. Even when we ...

Hariharan_sethuraman
Jun 1, 2015 at 8:21 am
Jun 9, 2015 at 5:17 am

2	What cause hfile saved under /hbase/.archive besides snapshot?

Hi, I found that there are many hfiles saved under /hbase/.archive/table/. I know when there is a snapshot taken, the hfile might have to be saved under /hbase/.archive. But when we are not even ...

Tianying Chang
Jun 5, 2015 at 7:25 pm
Jun 5, 2015 at 10:05 pm

1	HBase Start Error: java.io.IOException: com.google.protobuf.ServiceException: java.lang.NoSuchMethodError:

Hi, my Hbase: 0.98.11 and Protobul: 2.6.0 *** cannot use 2.5.0, cz my machine is ppc64le and uname -m ppc64le I m trying hbase 0.98.11 on ppc64le, using protobuf 2.6.0, the hadoop here (2.6.0) is ...

Arthur Chan
Jun 17, 2015 at 12:52 pm
Jul 2, 2015 at 6:12 am

1	ports of exteranl zookeeper ensemble

Hi dear all, I have an existing zookeeper ensemble, which is kafka01:2181,kafka02:2182,kafka03:2183,data04:2184,data05:2185 (port is different) and export HBASE_MANAGES_ZK=false in hbase-env.sh, and ...

俞忠静
Jun 29, 2015 at 5:57 pm
Jun 29, 2015 at 6:04 pm

1	Visibility Labels...

Hey Guys, Is anyone using HBase's visibility labels feature in their production environments? If so, could you share your experience? -- View this message in context ...

Sonny
Jun 25, 2015 at 5:03 am
Jun 27, 2015 at 3:41 pm

1	HBase still try to start a zookeeper instance even with HBASE_MANAGES_ZK set to false in standalone mode.

Hi My Hbase version is 1.0 running on mac, it seems a bug .

Guxiaobo1982
Jun 19, 2015 at 3:07 am
Jun 19, 2015 at 8:40 am

1	setMaxResultSize equivalent in 0.94.15?

Hi, We are using HBase version: 0.94.15. We are hitting OOM when we try to scan for latest 1000 records. We learnt it because all records are being retrieved from Hbase resulting OOM in our ...

Hariharan_sethuraman
Jun 15, 2015 at 9:21 am
Jun 15, 2015 at 1:45 pm

1	Table Delete in Apache Hbase

Hello Hbase users and developers, I have a few questions regarding how table table delete works in hbase. *What I know:* If a hbase table is deleted(after disabling), the SYSTEM.CATALOG entries ...

Arun Kumaran Sabtharishi
Jun 11, 2015 at 6:47 pm
Jun 11, 2015 at 6:52 pm

1	TimeStamp Range Filter for scanning in Hbase ?

Hello I am an Intern at Yahoo-Flickr, during one of the projects I wanted to scan the hbase table first based on timestamp range and then apply some other filter. However timestamp "range" filter is ...

Devpriya Dave
Jun 10, 2015 at 5:37 pm
Jun 10, 2015 at 5:54 pm

1	HBase and Hive integration

Hi - Newbie question: I got Hive and HBase on different clusters and say all the appropriate ports are open to connect Hive to HBase, then how to create a Hive managed HBase table? Thanks!

Buntu Dev
Jun 5, 2015 at 5:54 pm
Jun 5, 2015 at 5:56 pm

1	How to create HTableInterface object per thread in REST API?

Hello everyone, We have a REST API which communicates with HBase for CRUD operations. During load testing we saw that REST API throws "String index out of range" exception if multiple parallel ...

Chandrashekhar Kotekar
Jun 5, 2015 at 6:02 am
Jun 5, 2015 at 1:45 pm

1	PhoenixIOException resolved only after compaction, is there a way to avoid it?

Hi Everyone, We load the data to Hbase tables through BulkImports. If the data set is small, we can query the imported data from phoenix with no issues. If data size is huge (with respect to our ...

Siva
Jun 1, 2015 at 6:10 pm
Jun 1, 2015 at 8:16 pm

0	[DISCUSS] correcting abusive behavior on mailing lists was (Re: [DISCUSS] Multi-Cluster HBase Client)

(I took the liberty of moving us off of Ted's feature discussion thread) A three month ban sounds better than a permanent ban. But it still seems likely to just result in the ban-ee walking away from ...

Sean Busbey
Jun 30, 2015 at 7:09 pm
Jun 30, 2015 at 7:09 pm

0	load hbase data directly from hfile with pre-split regions

hi, guys, May i load hfiles by pre-split regions when copying table from other cluster to a new cluster? here is what i do at now: 1. distcp hfile folder from source cluster to destination cluster ...

伍照坤
Jun 26, 2015 at 5:00 pm
Jun 26, 2015 at 5:00 pm

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