thrift server dies frequently (very 2 hours)

2012-11-08 Thread Xiang Hua
Hi, we use c++ thrift gateway to connect to hbase, but thrift server died frequently without any error log. below is the GC info, showing FGC increase too fast, i am not sure if this is the reasion lead thrift server down. hadoop@hadoop3 ~]$ [hadoop@hadoop3 ~]$ jstat -gcutil 20267 4000 100

Re: Performance of scan setTimeRange VS manually doing it

2012-09-12 Thread Xiang Hua
Hi, do you have script in python for rack awareness configuration? Thanks! beatls On Thu, Sep 13, 2012 at 5:52 AM, Tom Brown wrote: > When I query HBase, I always include a time range. This has not been a > problem when querying recent data, but it seems to be an issue when I > query old

Re: HBASE garbage collection problem

2012-09-12 Thread Xiang Hua
hi, where can i fidn the GC log? I am a newcomer. Thanks! beatls On Wed, Sep 12, 2012 at 11:09 PM, Amlan Roy wrote: > Hi, > > > > I was doing some load testing on my cluster. I am writing to HBase (version > 0.92.0) from 20 threads simultaneously. After running the program for some > t

Re: HBASE garbage collection problem

2012-09-13 Thread Xiang Hua
Hi, pls give some advice for adding a datanode. can we add a datanode without shutdown cluster. Thanks! beatls

Re: HBASE garbage collection problem

2012-09-13 Thread Xiang Hua
yes, region server is included. as well as datanode. On Thu, Sep 13, 2012 at 4:50 PM, samar kumar wrote: > Do you mean Region server?? > > On 13/09/12 2:04 PM, "Xiang Hua" wrote: > > >Hi, > > pls give some advice for adding a datanode. > > can we

Re: Can not access HBase Shell.

2012-09-13 Thread Xiang Hua
Hi, not root user can not find all the hadoop process. 1. root use find all the process, below: [root@hadoop1 ~]# jps 17452 SecondaryNameNode 18266 Main 7759 Jps 32095 QuorumPeerMain 17108 JobTracker 16955 TaskTracker 17566 HMaster 17177 NameNode 17765 HRegionServer 19424 ThriftServer

nonroot user cannot login 'hbase shell'?

2012-09-16 Thread Xiang Hua
Hi, hbase shell problem? root user can acces hbase shell, but nonroot user hdfs cannot,see below. any advice?

Re: nonroot user cannot login 'hbase shell'?

2012-09-17 Thread Xiang Hua
> > Which user is your HBase running on? > > Mine is running with "hbase" user and I use "hbase" user to connect to > the shell. Is your's running under root? > > JM > > 2012/9/17, Xiang Hua : > > Hi, > > hbase shell problem? >

Re: 答复: hmaster down cause by zookeeper?

2012-10-12 Thread Xiang Hua
d there's a catch statement finally to log > all exception, no throw again. > > IMHO, the hbase master log file is the right place you need to dive:) > > 发件人: Xiang Hua [bea...@gmail.com] > 发送时间: 2012年10月12日 3:14 > 收件人: user@hbase.apache.org &g

hmaster and regionserver died

2012-10-13 Thread Xiang Hua
Hi, the HMaster died as well as regionservers, below is hmaster's log. could you please find what's problem? 2012-10-12 00:14:19,444 INFO org.apache.zookeeper.ClientCnxn: Socket connection established to bj-ecsxhm4f3I-r3-5-r810-2-hbase-stor-3/ 10.20.16.34:2181, initiating session 2012-10-12 00

Re: hmaster and regionserver died

2012-10-15 Thread Xiang Hua
We will check the zk log. On Monday, October 15, 2012, Ramkrishna.S.Vasudevan wrote: > Check your GC configurations. Seems to that a Full GC has happened and the > Zookeeper thought that to be session expiry. > > Regards > Ram > > > -Original Message- > &g

Re: hmaster and regionserver died

2012-10-15 Thread Xiang Hua
est R. beatls On Mon, Oct 15, 2012 at 4:00 PM, Ramkrishna.S.Vasudevan < ramkrishna.vasude...@huawei.com> wrote: > Hi > > Sorry if my reply mislead you. I meant to see the GC logs that should > give > you an idea of if Full GC happened. > > Regards > Ram > > > --

how to "copy" oracle to HBASE, just like goldengate

2012-11-01 Thread Xiang Hua
Hi, IS there any tool to 'copy' whole oracle data of an instance into 'hbase'. Best R. huaxiang