How to configure hadoop to reuse JVM for mappers?

1206

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How to resolve IOException: Cannot create directory

1029

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

1008

---

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

1067

---

what is a datanode?

937

---

How does NameNode tackle DataNode failures?

1181

---

What is InputSplit and RecordReader?

969

---

What is the purpose of dfsadmin tool?

1255

---

How can you connect an application

1036

---

how is a file of the size 1 GB uncompressed

933

---

Is map like a pointer?

924

---

What is the default replication factor?

995

---

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

1124

---

What is a Record Reader in hadoop?

967

---

What is version-id mismatch error in hadoop?

1062

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