What are the port numbers of namenode, job tracker and task tracker?
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What is Disk Balancer in Apache Hadoop?
shouldn't DFS be able to handle large volumes of data already?
How can you overwrite the replication factors in HDFS?
what factors the block size takes before creation?
What is HDFS Block size? How is it different from traditional file system block size?
What is the difference between Gen1 and Gen2 Hadoop with regards to the Namenode?
Should we use RAID in Hadoop or not?
How would you use Map/Reduce to split a very large graph into smaller pieces and parallelize the computation of edges according to the fast/dynamic change of data?
What is a Combiner?
What is a spill factor with respect to the ram?
What are active and passive "NameNodes"?
What do you mean by taskinstance?
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