hadoop version 2.4.1
Network is in good condition.
What causes the session timeout?
** DFSZKFailoverController logs2014-08-11 17:20:13,226 DEBUG
org.apache.zookeeper.ClientCnxn: Got ping response for sessionid:
0x147a0162d86000c after 0ms2014-08-11 17:20:27,012 INFO
org.apache.zookeeper
Hello
Your are correct Tez is a yarn app or client to be more precise. It is not
bundled by default in hadoop 2, same as pig for example it is up to you to
add it. Tez and pig are actually close in that sense that they are not
services to be installed exactly but rather clients to be added and use
Hello
As the hadoop ecosystem moves fast and the yarn part was a mini revolution
I understand your confusion.
To make it simple in hadoop 1 there were two main things Hadoop MapReduce
and Hadoop HDFS.
Hadoop MR was actually two things: A compute paradigme, map-reduce and a
distribution process of
Hi,
I have an input which has about 10M records，each recored is a rowkey in
hbase.
How can i get these data from HBase with MapReduce job?
Thanks,
Lei
leiwang...@gmail.com
Hi
I am running Hadoop 2.4.1 with YARN HA enabled (two name nodes, NM1 and NM2).
When verifying ResourceManager failover, I use “kill -9” to terminate the
ResourceManager in name node 1 (NM1), if I run the the test job, it seems that
the failover of ResourceManager keeps trying NM1 and NM2 non
Hi,
I've made some changed to the default block placement policy and want to
see how if affects a cluster. Any suggestions on how I can test the
before and after of a cluster after making these changes?
I read up a bit on Rumen and GridMix in my search for tools that would
help me benchmark
Hi,
If I have TWO nodes for ResourceManager HA, what should be the correct steps
and commands to start and stop ResourceManager in a ResourceManager HA cluster ?
Unlike ./sbin/start-dfs.sh (which can start all NNs from a NN), it seems that
./sbin/start-yarn.sh can only start YARN in a node at a
Hey, Arthur:
Did you use single node cluster or multiple nodes cluster? Could you
share your configuration file (yarn-site.xml) ? This looks like a
configuration issue.
Thanks
Xuan Gong
On Mon, Aug 11, 2014 at 9:45 AM, arthur.hk.c...@gmail.com <
arthur.hk.c...@gmail.com> wrote:
> Hi,
>
>
Hi,
I¹ve been reading a lot of posts about needing to set a high ulimit for file
descriptors in Hadoop and I think it¹s probably the cause of a lot of the
errors I¹ve been having when trying to run queries on larger data sets in
Hive. However, I¹m really confused about how and where to set the lim
Hi,
it is a multiple-node cluster, two master nodes (rm1 and rm2), below is my
yarn-site.xml.
At the moment, the ResourceManager HA works if:
1) at rm1, run ./sbin/start-yarn.sh
yarn rmadmin -getServiceState rm1
active
yarn rmadmin -getServiceState rm2
14/08/12 07:47:59 INFO ipc.Client: Retry
Hi Folks ,
I have been writing a map-reduce application where I am having an input
file containing records and every field in the record is separated by some
delimiter.
In addition to this user will also provide a list of columns that he wants
to lookup in a master properties file (stored in HDFS
Some questions:
Q1) I need start yarn in EACH master separately, is this normal? Is there
a way that I just run ./sbin/start-yarn.sh in rm1 and get the
STANDBY ResourceManager in rm2 started as well?
No, need to start multiple RMs separately.
Q2) How to get alerts (e.g. by email) if the ACTIVE R
Hi,
Thank y very much!
At the moment if I run ./sbin/start-yarn.sh in rm1, the standby STANDBY
ResourceManager in rm2 is not started accordingly. Please advise what would be
wrong? Thanks
Regards
Arthur
On 12 Aug, 2014, at 1:13 pm, Xuan Gong wrote:
> Some questions:
> Q1) I need start
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