How to configure hadoop to reuse JVM for mappers?

787

---

How to resolve IOException: Cannot create directory

673

---

How to change replication factor of files already stored in HDFS?

701

---

shouldn't DFS be able to handle large volumes of data already?

762

---

what is a datanode?

636

---

How does NameNode tackle DataNode failures?

871

---

What is InputSplit and RecordReader?

635

---

What is the purpose of dfsadmin tool?

907

---

How can you connect an application

714

---

how is a file of the size 1 GB uncompressed

587

---

Is map like a pointer?

669

---

What is the default replication factor?

683

---

How can one increase replication factor to a desired value in Hadoop?

778

---

What is a Record Reader in hadoop?

679

---

What is version-id mismatch error in hadoop?

745

---