How to configure hadoop to reuse JVM for mappers?

1167

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How to resolve IOException: Cannot create directory

972

---

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

964

---

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

1027

---

what is a datanode?

885

---

How does NameNode tackle DataNode failures?

1111

---

What is InputSplit and RecordReader?

884

---

What is the purpose of dfsadmin tool?

1201

---

How can you connect an application

984

---

how is a file of the size 1 GB uncompressed

878

---

Is map like a pointer?

880

---

What is the default replication factor?

950

---

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

1085

---

What is a Record Reader in hadoop?

914

---

What is version-id mismatch error in hadoop?

1020

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