Hi people, i'm new on this user list, and i need help!
I'm starting with hadoop recently, and i'm trying to use it with giraph.
So, for building giraph, i choose the 2.4 release of hadoop (because
according to this link
So, if I want to change the default dead time, I have to compile from
source first?
Is there any other way that I use to change dead time from native
hadoop-2.6 (not from source)?
Or maybe the native doesn't have a feature to change the dead time?
Thank's all for the responses :)
On Sun, Mar 29,
At
http://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-common/ClusterSetup.html#Monitoring_Health_of_NodeManagers
is a description of how you can have a script check the health of a node
and indicate to the ResourceManager that it is unhealthy. This seems to be
at the cluster level.
Thank you for your response and explanation, but I couldn't find
dfs.namenode.heartbeat.recheck-interval parameter on
http://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/hdfs-default.xml
that you told before, maybe any other formula with this version?
On Sat, Mar 28, 2015 at
Himawan:
Please see the following constants
in
hadoop-hdfs-project//hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
:
public static final String DFS_NAMENODE_HEARTBEAT_RECHECK_INTERVAL_KEY =
dfs.namenode.heartbeat.recheck-interval;
public static final int
Himawan:
You don't need to recompile the code.
Please see this thread http://search-hadoop.com/m/LgpTk2FkzEk
The last comment in that thread led to:
https://issues.apache.org/jira/browse/HDFS-7685
Cheers
On Sat, Mar 28, 2015 at 6:36 PM, Himawan Mahardianto mahardia...@ugm.ac.id
wrote:
So, if
HI
The NameNode updates this detail after 10.30 minutes by default. You can see
the dead and live datanodes at that time.
It computes this heartbeatExpireInterval time by the following formula
heartbeatExpireInterval = 2 * heartbeatRecheckInterval +
10 * 1000* heartbeatInterval
where
