How to configure hadoop to reuse JVM for mappers?

1199

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How to resolve IOException: Cannot create directory

1007

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

999

---

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

1060

---

what is a datanode?

921

---

How does NameNode tackle DataNode failures?

1155

---

What is InputSplit and RecordReader?

940

---

What is the purpose of dfsadmin tool?

1241

---

How can you connect an application

1024

---

how is a file of the size 1 GB uncompressed

923

---

Is map like a pointer?

911

---

What is the default replication factor?

985

---

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

1116

---

What is a Record Reader in hadoop?

954

---

What is version-id mismatch error in hadoop?

1051

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