How many instances of JobTracker can run on a Hadoop Cluser?

1030

---

What's the best way to copy files between HDFS clusters?

1366

---

Can Apache Kafka be used without Zookeeper?

1044

---

What is Your Cluster size ?

1447

---

What is the default block size in hdfs?

1053

---

What are active and passive "NameNodes"?

1477

---

It can be possible that a Job has 0 reducers?

978

---

What are combiners and its purpose?

943

---

On what basis Namenode will decide which datanode to write on?

1276

---

Can Hadoop be compared to NOSQL database like Cassandra?

920

---

What is a Secondary Namenode? Is it a substitute to the Namenode?

1041

---

what are relational operations in pig latin?

874

---

What is the difference between SQL and NoSQL?

1090

---

What are the additional benefits YARN brings in to Hadoop?

977

---

what are the steps involved in decommissioning removing

1041

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