Add my Obsidian notes

content/BigData/Hadoop/Apache Hive.md

@@ -32,6 +32,7 @@ aliases:
 ![[Screenshot 2025-07-23 at 18.27.30.png|]]
 
 ##### Hive Usage
+{% raw %}
 ```
 #Start a hive shell:
 $hive
@@ -57,3 +58,4 @@ $hive -e 'SELECT name FROM mta;'
 #Execute script from file
 $hive -f hive_script.txt
 ```
+{% endraw %}

content/BigData/Hadoop/Apache Spark.md

@@ -36,6 +36,7 @@ aliases:
 	- Each [[RDD]] keeps track of how it was derived. If a node fails, Spark **recomputes only the lost partition** from the original transformations.
 	
 ##### Writing Spark Code in Python
+{% raw %}
 ```
 # Spark Context Initialization
 from pyspark import SparkConf, SparkContext
@@ -52,6 +53,8 @@ distData = sc.parallelize(data)
 distFile = sc.textFile("data.txt")
 distFile = sc.textFile("folder/*.txt")
 ```
+{% endraw %}
+
 ##### **RDD Transformations (Lazy)**
 These create a new RDD from an existing one.
 

content/BigData/Hadoop/HDFS.md

@@ -21,6 +21,7 @@ Stores huge files (Typical file size GB-TB) across multiple machines.
 - Parquet Files - Yet another RC file
 
 ##### HDFS Command Line
+{% raw %}
 ```
 # List files
 hadoop fs -ls /path
@@ -34,7 +35,7 @@ hadoop fs -cat /file
 # Upload file
 hadoop fs -copyFromLocal file.txt hdfs://...
 ```
-
+{% endraw %}
 #### HDFS Architecture – Main Components
 ##### **1.** NameNode (Master Node)
 - **Stores metadata** about the filesystem: