Disk Space and RAM Full on SafeSquid Server
Overview
Manage disk space on the SafeSquid server. When any of the partitions that are used by SafeSquid are full, it results in undefined behaviour. This may lead to something like, SafeSquid failing in processing the connections.
Prerequisites
Give the enough size to backup store.
Example: If you want to take a backup of files of size 5GB then consider the store up to 5.5 GB
Don't delete the original log files (.log extension) and database files.
Check disk space
Run the below command to check the available disk space on each partition.
df -kh
You will see the Used and Available sizes on each partition.
Filesystem Size Used Avail Use% Mounted on
udev 735M 4.0K 735M 1% /dev
tmpfs 150M 428K 149M 1% /run
/dev/dm-2 4.9G 4.2G 424M 91% /
none 4.0K 0 4.0K 0% /sys/fs/cgroup
none 5.0M 0 5.0M 0% /run/lock
none 746M 0 746M 0% /run/shm
none 100M 0 100M 0% /run/user
/dev/sda1 232M 37M 179M 17% /boot
/dev/mapper/dev--vg-var+cache+safesquid 1.8G 2.8M 1.7G 1% /var/cache/safesquid
/dev/mapper/dev--vg-usr+local+safesquid 1.8G 44M 1.7G 3% /usr/local/safesquid
/dev/mapper/dev--vg-var+db+safesquid 15G 193M 14G 2% /var/db/safesquid
/dev/mapper/dev--vg-var+log+safesquid 15G 171M 14G 2% /var/log/safesquid
/dev/ram1 62M 1.3M 58M 3% /tmp/safesquid
If any of the above partitions are observed to be used over 80%, then you may take a backup of the following files and delete files as per your requirement.
Partitions
When the "/ " partition is full remove the files from the below paths:
/opt/safesquid/bin
change the directory to /opt/safesquid/bin by using the command below:
cd /opt/safesquid/bin
The default files and folders are:
sections
modules
safesquid -> safesquid-2017.0518.2110.3-swg-concept*
You should not delete the tar file which is soft-linked to the SafeSquid file. In the above image, it is: safesquid-2017.0518.2110.3-swg-concept*
/var/log
You can also take the backup of system logs and delete the files with the .gz extension. This folder contains the logs related to a system, so don't delete or modify the original files (i.e. with the .log extension).
Example: dmesg.1.gz
/var/cache/safesquid
Delete all files from this folder by using the command mentioned below. No need to take a backup of any file from this folder.
rm -rf *
/var/db/safesquid
Delete all files except these three files from the directory: /var/db/safesquid/report/
safesquid2.db
safesquid2.db-wal
safesquid2.db-shm
These files will be used to store the data required for reports generation
you can take a backup or directly delete these files.
If you delete or move the above files to another destination then restart the SafeSquid server, in order to create the deleted or moved files.
/var/log/safesquid
Change the directory to :/var/log/safesquid/native/ by using the below command
cd /var/log/safesquid/native/
Native logs are used to store the data related to requests and responses. You can delete all files in this folder, no backup is required.
Example file name to be deleted: 20161223132118-safesquid.log.gz
Change the directory to: /var/log/safesquid/extended/ by using the below command
cd /var/log/safesquid/extended/
Extended logs are used to store the data related to users' information for each connection. Take a backup of these files if required.
Example file name to be deleted: 20161223132118-extended.log.gz
Change the directory to: /var/log/safesquid/performance/ by using the below command
cd /var/log/safesquid/performance/
Performance logs are used to store the data related to safesquid performance statistics. You can take a backup if required and delete it.
Example file name to be deleted: 20161223132118-performance.log.gz
Change the directory to :/var/log/safesquid/config/ by using the below command
cd /var/log/safesquid/config/
config logs used to store the data related to safesquid interface requests and responses. No need to take a backup of these files.
Example file name to be deleted: 20161223132118-config.log.gz
/tmp/safesquid
Delete all files and folders present in this directory. By using this command
rm -rf *
This memory will be used only in upgradation time.