Disk space and RAM is 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.

1. 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 below paths:

/opt/safesquid/bin

change the directory to /opt/safesquid/bin by using the below command:

1. 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 the 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 below command. No need to take a backup of any file from this folder.

1. 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.

Note: 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

1. 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:

1. 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:

1. 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:

1. 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:

1. rm -rf  *

This memory will be used only in upgradation time.

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