How to configure hadoop to reuse JVM for mappers?

1168

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How to resolve IOException: Cannot create directory

973

---

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?

886

---

How does NameNode tackle DataNode failures?

1112

---

What is InputSplit and RecordReader?

885

---

What is the purpose of dfsadmin tool?

1202

---

How can you connect an application

984

---

how is a file of the size 1 GB uncompressed

878

---

Is map like a pointer?

882

---

What is the default replication factor?

951

---

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

1086

---

What is a Record Reader in hadoop?

916

---

What is version-id mismatch error in hadoop?

1024

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