Re: Connection refused Error

Many thanks. I had to re-install hadoop all over and then start the daemons. It works now  Anand Murali  11/7, 'Anand Vihar', Kandasamy St, MylaporeChennai - 600 004, IndiaPh: (044)- 28474593/ 43526162 (voicemail) On Saturday, April 18, 2015 11:43 AM, sreebalineni . wrote: if no c

Re: Connection refused Error

if no changes maku sure all daemons running properly though it looks like started it might not running for long time On Apr 18, 2015 7:59 AM, "Anand Murali" wrote: > Yes > > Sent from my iPhone > > On 17-Apr-2015, at 9:01 pm, madhav krish wrote: > > Did you start your name node using start-dfs.s

The correct way to find number of mappers and reducers

Hi, There are good guides on the number of mappers and reducers in a hadoop job. For example: Running Hadoop on Ubuntu Linux (Single-Node Cluster)http://goo.gl/kaA1h5 Partitioning your job into maps and reduces http://goo.gl/tpU23 However, there are some, say noob, question here. Assume

Re: Connection refused Error

Yes Sent from my iPhone > On 17-Apr-2015, at 9:01 pm, madhav krish wrote: > > Did you start your name node using start-dfs.sh? > >> On Apr 17, 2015 1:52 AM, "Anand Murali" wrote: >> Dear All: >> >> I installed Hadoop-2.6 on Ubuntu 14.10 desktop yesterday and was able to >> connect to hdfs a

Re: [HA] Starting standby node in HA

I had a problem in hdfs-site.xml: *dfs.namenode.http-address.[nameservice ID].[name node ID] was not set correctly* On Fri, Apr 17, 2015 at 5:40 PM, Fernando O. wrote: > Hi All, > I'm trying to setup a HA cluster, I started (and formatted) one > namenode, resourcemanager and zkfc. > > Now I'

[HA] Starting standby node in HA

Hi All, I'm trying to setup a HA cluster, I started (and formatted) one namenode, resourcemanager and zkfc. Now I'm not sure how to startup the sencond (standby) namenode, I ssh to the box and executed sbin/hadoop-daemon.sh start namenode but it tries to start the "primary" namenode and not t

Error in YARN localization with Active Directory user -- inconsistent directory name escapement

We have a Cloudera 5.3 cluster running on CentOS6 that is Kerberos-enabled and uses an external AD domain controller for the KDC. We are able to authenticate, browse HDFS, etc. However, YARN fails during localization because it seems to get confused by the presence of a \ character in the loca

several jobs in one MapReduce runtime

Hi, I have a MapReduce runtime where I put several jobs running in concurrency. How I manage the job scheduler so that it won't run a job at a time? Thanks, -- --

Re: Found weird issue with HttpFS and WebHdfsFileSystem

Hello Bram, I'm glad to hear the information was helpful. If you'd like to request access to childNum as part of a guaranteed public API, then I encourage you to create a jira issue in the HDFS project. We could consider it for the future. HdfsFileStatus is a representation of the HDFS wire p

Re: Exception while import in sqoop

Hello Kumar, This is another question that would be better handled through the u...@sqoop.apache.org list. Chris Nauroth Hortonworks http://hortonworks.com/ From: Kumar Jayapal mailto:kjayapa...@gmail.com>> Reply-To: "user@hadoop.apache.org

Exception while import in sqoop

Hi, I installed sqoop2 and trying to execute simple export command to check the db connection Does any one have reason and resolution of this error. sqoop import --connect jdbc:mysql://mysql.mmc.com:3306/hive --username hive --password sdeecer --table ROLES Exception has occurred during

Re: Connection refused Error

Did you start your name node using start-dfs.sh? On Apr 17, 2015 1:52 AM, "Anand Murali" wrote: > Dear All: > > I installed Hadoop-2.6 on Ubuntu 14.10 desktop yesterday and was able to > connect to hdfs and run mapreduce job on singlenode yarn setup. Today I am > unable to connect with following

Re: Connection refused Error

Did you start your name node using start-dfs.sh? On Apr 17, 2015 1:52 AM, "Anand Murali" wrote: > Dear All: > > I installed Hadoop-2.6 on Ubuntu 14.10 desktop yesterday and was able to > connect to hdfs and run mapreduce job on singlenode yarn setup. Today I am > unable to connect with following

Re: Found weird issue with HttpFS and WebHdfsFileSystem

Hi Chris, Thanks for this reply. I thought something funny was happening. The childNum field is actually very useful (eg for (not) rendering a expansion marker next to a folder in a GUI when it has children), so it's a pity the info is there, but get's "eaten up" by the general interface, only to

Connection refused Error

Dear All: I installed Hadoop-2.6 on Ubuntu 14.10 desktop yesterday and was able to connect to hdfs and run mapreduce job on singlenode yarn setup. Today I am unable to connect with following anand_vihar@Latitude-E5540:~/hadoop-2.6.0/sbin$ start-yarn.sh starting yarn daemons starting resourcemanag

ipc.Client: Retrying connect to server

Hello,I have done all steps (as far as I know) to bring up the hadoop. However, I get the this error 15/04/17 12:45:31 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:54310. Already tried 0 time(s). There are a lot of threads and posts regarding this error and I tried them. Howe

Re: Deprecation Error

Many thanks Chris  Anand Murali  11/7, 'Anand Vihar', Kandasamy St, MylaporeChennai - 600 004, IndiaPh: (044)- 28474593/ 43526162 (voicemail) On Thursday, April 16, 2015 11:27 PM, Chris Nauroth wrote: Hello Anand, MapReduce provides 2 similar but slightly different public APIs for

Re: Add keys to column family in HBase using Python

bq. add columns to the HBase table(from Hive) Since desired approach is to add column through Hive, please consider Hive mailing list as well. Cheers On Thu, Apr 16, 2015 at 10:45 AM, Chris Nauroth wrote: > Hello Manoj, > > I recommend restarting this thread over at u...@hbase.apache.org. T