Hello,
I am new to Hadoop, and i have built Hadoop cluster, where in i have Namenode and secondaryname node in 2 different nodes.
So when i have to change checkpointing timings, i ahve seen i whould use following parameters
dfs.namenode.checkpoint.period – 60
dfs.namenode.checkpoint.txns — 10
dfs.namenode.checkpoint.check.period — 60
I have made these changes in Namenode, and want to check functioning of the checkpointing i have changed. So have restarted using stop-dfs.sh, and started using start-dfs.sh
And i have checked with dfs.namenode.name.dir parameter.i have set it to /usr/local/hadoop/editlog1
And when i restart services, i see fsimage .md5 being created in /usr/local/hadoop/editlog1 after restart , but i dont see fs-mage.md5 created after every 1 min, as i have set dfs.namenode.checkpoint.period – 60
So i am not sure if i am doing something wrong, or do we have any method to check if checkpointing is happening as per our changed parameters.
Thanks & Regards,
Srilatha K.