How to configure hadoop to reuse JVM for mappers?

1241

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How to resolve IOException: Cannot create directory

1076

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

1040

---

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

1109

---

what is a datanode?

977

---

How does NameNode tackle DataNode failures?

1208

---

What is InputSplit and RecordReader?

1015

---

What is the purpose of dfsadmin tool?

1299

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How can you connect an application

1066

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how is a file of the size 1 GB uncompressed

962

---

Is map like a pointer?

952

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What is the default replication factor?

1027

---

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

1159

---

What is a Record Reader in hadoop?

1015

---

What is version-id mismatch error in hadoop?

1087

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