BigData quick reference noted

Hello Friends,

This blog page is dedicated for BigData reading material.

https://www.oracle-cloud.com/

https://www.slideshare.net/BernardMarr/big-data-25-facts/2-Every_2_dayswe_create_as

https://d3c33hcgiwev3.cloudfront.net/_b80b26ca6e61e6dc1e42e754e9bcd3b4_WhatLaunchedTheBigDataEra-Altintas-Final.pdf?Expires=1569542400&Signature=H2QTpw346bGE0wyFCJUX~VEKNt5ASs6mlxkyGlqOvmdvp9gpN9Mc3phkdWbYDEe8BeXurFHATcAI3G2tWzuvmDVuvShdAPGkMmCgz4dlTwMVTbyW1YWSeiMjxbeO8b37Q8zs09xTby1Ax7ENqaRtsB~CQ-zCisBSq~vGRZpA4rI_&Key-Pair-Id=APKAJLTNE6QMUY6HBC5A

Linux inode setup

 

  
Command to find inode:
----------------------
find . -printf "%h\n" | cut -d/ -f-2 | sort | uniq -c | sort -rn

command to remove file:
-----------------------
nohup find /u02/app/oracle/product/11.2.0/dbhome_2/rdbms/audit -type f -name "*.aud" -mtime +7 -exec rm -f {} \; &
nohup find /u02/app/oracle/product/11.2.0/dbhome_4/rdbms/audit -type f -name "*.aud" -mtime +7 -exec rm -f {} \; &
nohup find /u02/app/oracle/product/12.1.0/dbhome_2/rdbms/audit -type f -name "*.aud" -mtime +7 -exec rm -f {} \; &
nohup find /u02/app/oracle/product/12.1.0/dbhome_2/rdbms/audit -type f -name "*.aud" -mtime +7 -exec rm -f {} \; &


[root@server1 ~]# df -ih /u02
Filesystem     Inodes IUsed IFree IUse% Mounted on
/dev/xvdg        5.7M  5.2M  501K   92% /u02

[root@server1 ~]# pwd
/root

[root@server1 ~]# cd /u02
[root@server1 u02]# cd app

[root@server1 app]# find . -printf "%h\n" | cut -d/ -f-2 | sort | uniq -c | sort -rn
5505547 ./oracle
      3 .
[root@server1 app]# df -ih /u02
Filesystem     Inodes IUsed IFree IUse% Mounted on
/dev/xvdg        5.7M  5.2M  505K   92% /u02

[root@server1 app]# cd /u02/app/oracle/product

[root@server1 product]# ls
11.2.0  12.1.0  12.2.0  nohup.out  oem13

[root@server1 product]# find . -printf "%h\n" | cut -d/ -f-2 | sort | uniq -c | sort -rn
2427032 ./12.1.0
1920579 ./11.2.0
 930820 ./12.2.0
 130574 ./oem13
      6 .
[root@server1 product]#