How to configure hadoop to reuse JVM for mappers?

914

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How to resolve IOException: Cannot create directory

788

---

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

823

---

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

878

---

what is a datanode?

739

---

How does NameNode tackle DataNode failures?

973

---

What is InputSplit and RecordReader?

746

---

What is the purpose of dfsadmin tool?

1037

---

How can you connect an application

834

---

how is a file of the size 1 GB uncompressed

686

---

Is map like a pointer?

765

---

What is the default replication factor?

787

---

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

901

---

What is a Record Reader in hadoop?

797

---

What is version-id mismatch error in hadoop?

864

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