How to configure hadoop to reuse JVM for mappers?

1151

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How to resolve IOException: Cannot create directory

961

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

954

---

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

1017

---

what is a datanode?

878

---

How does NameNode tackle DataNode failures?

1105

---

What is InputSplit and RecordReader?

875

---

What is the purpose of dfsadmin tool?

1191

---

How can you connect an application

979

---

how is a file of the size 1 GB uncompressed

867

---

Is map like a pointer?

872

---

What is the default replication factor?

942

---

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

1076

---

What is a Record Reader in hadoop?

906

---

What is version-id mismatch error in hadoop?

1013

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