Question
What happens when two clients try to write into the same HDFS file

Answers

HDFS supports exclusive writes only.
When the first client contacts the name-node to open the file for writing, the name-node grants a lease to the client to create this file. When the second client tries to open the same file for writing, the name-node will see that the lease for the file is already granted to another client, and will reject the open request for the second client   Your Comment




More Software Questions..
What is the inputsplit in map reduce software?

What is software configuration management?

What Is Java Api For Xml-based Rpc (jax-rpc)?

How can you implement fine-grained auditing?

What is IBM’s simple explanation for Big Data’s four critical features?

What is static synchronized method in JDBC API? Give an example?

What does the NULLIF function do?

What happens if a start method is not invoked and the run method is directly invoked?

Should we override finalize method

what is the difference between mysql_fetch_array and mysql_fetch_object?

How will XML affect my document links?

Why to use Style Sheets?

What are Filters in MVC?

Can you explain Application layer in OSI model?

How to define new testplan attributes?

What are the minimum system requirements to run Photoshop? Is it possible to run Photoshop over linux?

Which oracle package is used to manage the oracle lock management services?

What is Latch Up? Explain Latch Up with cross section of a CMOS Inverter. How do you avoid Latch Up?

What is marker interface?

What types of partitioning are there for BW?



Search
Can you Answer!!
  • Q a person who decided to go weekend trip should not exceed 8 hours driving in a day average spped of forward journey is 40 mph.due to traffic insundays the return journey average speed is 30 mph.how far he can select a picnic spot.
  • Q How you can insert video in microsoft word 2013 ?
  • Q what is the abbreviation of RailTel
  • Q RANK TRANSFORMATION IN INFORMATICA
  • Q Who was the first chairman of the UGC?
  • Q Explain what is dhcp rogue server?
  • Q Write down the functions of placenta.
  • Q How does citrix xen desktop help in enterprises?
  • Q What is the value of ‘comm’ and ‘sal’ after executing the following query if the initial value of ‘sal’ is 10000?
  • Q what is the floral formula of Dryopteridaceae ?
  • Q Can teachers who instruct outside of the classroom be considered to have a primary duty of teaching? What about those who may have a primary duty of teaching, but do not instruct people enrolled in degree-seeking programs?