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The data is written directly to datanode?
Yes, otherwise the namenode would have become the bottleneck
No, the data is first handed over to namenode and namenode gives it datanode.
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1 Chapter Overview - HDFS
2 Why HDFS?
3 HDFS - HDFS stands for:...
4 HDFS - Average life of a Hard Disk Drive is:...
5 HDFS - What does it mean by scaling out?...
6 HDFS - NAS (Network Attached Storage) or SAN (Storage Area network) do...
7 HDFS - NameNode & DataNodes
8 HDFS - What is not true about HDFS?...
9 HDFS - Which of the following is not a metadata of file?...
10 HDFS - Can we run the namenode and datanode on the same...
11 HDFS - What best describes namenode or datanode?...
12 HDFS - If you have two computers A (16GB, 512GB Disk) and...
13 HDFS - Does datanode know the name and the parent folder name...
14 HDFS - When we create a folder which will be impacted?...
15 HDFS - Which machine is namenode?...
16 HDFS - The metadata is stored on...
17 HDFS - When we create a file in HDFS which will be...
18 HDFS - Design & Limitations
19 HDFS - Replication
20 HDFS - On what basis does the HDFS breaks a big file...
21 HDFS - Which of the following is not true about replication in...
22 HDFS - If there is a file of size 270 Megabytes in...
23 HDFS - Which of the following is not an advantage of having...
24 HDFS - If losing three nodes at a time is possible in...
25 HDFS - If we had a replication factor of two on a...
26 HDFS - Say, we have a file which is very important and...
27 HDFS - If you have a file of size 150MB having a...
28 HDFS - We have a cluster having two racks R1 and R2....
29 HDFS - If we have five machines in our cluster out of...
30 HDFS - Which one will consume more memory on namenode?...
31 HDFS - File Reading - Writing
32 HDFS - In HDFS, which is more efficient to store?...
33 HDFS - The read speed of SSD is faster than HDD...
34 HDFS - In HDFS, which one will take more time?...
35 HDFS - To recieve the first byte will be faster in case...
36 HDFS - HDFS provides strong consistency?...
37 HDFS - The replication happens between the datanodes?...
38 HDFS - Once data is written to data node, does client need...
39 HDFS - The data is written directly to datanode?...
40 HDFS - For reading the actual data, the name node reads the...
41 HDFS - Who splits the file into blocks?...
42 HDFS - Namenode Backup & Failover
43 HDFS - On every change in the namenode such creation of directory,...
44 HDFS - In hadoop 2.x, which of the following setups is highly...
45 HDFS - In case the namenode crashes, for recovering the namenode metadata,...
46 HDFS - In Hadoop 2.x with the standby setup, is there are...
47 HDFS - When do you use mount tables?...
48 HDFS - Mount tables is a service:...
49 HDFS - Hands-On with Ambari
50 HDFS - Hands-On with Console
51 HDFS - Hands-On - More Commands
52 HDFS - The home folder in linux console for a user john1234...
53 HDFS - To transfer files from your laptop to webconsole, we use...
54 HDFS - Your home folder in HDFS start with:...
55 Create Text File Using Nano
56 Copy File to HDFS
57 Set Replication Factor
58 HDFS - Summary
59 HDFS - Resources
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