Automatic CDR Retrieval

This procedure describes how to configure the ProSBC to send its Call Detail Records (CDR) files to a remote server automatically and perform daily (or monthly) file archives.

Overview

The tbcopycdr script supports the following features:

  • Move cdr files from TMG_CDR_DIR to TMG_TEMP_DIR

  • Send files to a remote server

  • Move sucessfully sent files (rename to .sent.gz) from TMG_TEMP_DIR to TMG_ARCHIVE_DIR (ARCHIVE=true)

  • Rename sucessfully sent files (.sent.gz) in TMG_TEMP_DIR (ARCHIVE=false; ERASE_AFTER_SEND=false)

  • Delete sucessfully sent files from TMG_TEMP_DIR (ARCHIVE=false; ERASE_AFTER_SEND=true)

  • If a file failed to be sent to remote server, it is kept in TMG_TEMP_DIR until it is successfully sent

The tbarchivecdr script creates a gzip tar archive with all gz files copied by tbcopycdr in TMG_ARCHIVE_DIR

  • Change directory to TMG_ARCHIVE_DIR

  • Create a temporary folder with the current date (for example: 2016-01-30)

  • Sleep for 90 second

  • Move all *.gz files and $TMG_TEMP_DIR/$LOG_FILE to this folder

  • Archive the folder in a gzipped tar file (cdr_2016_01_30_$hostname.tgz)

Configuration

The script is configured with user variables.

  • CONFIG_FILE: Configuration file name and location. By default, it is set to /root/tbcopycdr.cfg

CONFIG_FILE=/root/tbcopycdr.cfg

tbcopycdr.cfg file example:

TMG_TEMP_DIR=/home/tbcopycdr
TMG_CDR_DIR=/lib/tb/toolpack/setup/12358/cdr_logs
ARCHIVE=true
TMG_ARCHIVE_DIR=/lib/tb/toolpack/setup/12358/cdr_archive
ARCHIVE_MAX_DAYS=180
REMOTE_HOST=192.168.101.170
REMOTE_PORT=22
REMOTE_DIR=/root/cdr_backups
REMOTE_USER=root

The configuration file can redefine any of the following user variables. To see the default variables:

head -n 50 /usr/bin/tbcopycdr

  • TMG_CDR_DIR: Tmedia directory where the CDR are located. Default is /lib/tb/toolpack/setup/12358/cdr_logs

TMG_CDR_DIR=/lib/tb/toolpack/setup/12358/cdr_logs

  • REMOTE_HOST : Remote hostname or Ip address. Remote host copy is disabled by default.

REMOTE_HOST=10.10.10.10

  • REMOTE_PORT : Remote host ssh port.

REMOTE_PORT=22

  • REMOTE_DIR : Remote directory where to copy the backup files (/root/backup by default)

REMOTE_DIR=/root/backup

  • REMOTE_USER : Remote host login user.

REMOTE_USER=root

  • CONNECT_TIMEOUT : scp connection timeout

CONNECT_TIMEOUT=10

  • ARCHIVE: true or false. If set to true, move successfully sent files (rename to .sent.gz) from TMG_TEMP_DIR to TMG_ARCHIVE_DIR. Default is false.

ARCHIVE=false

  • TMG_ARCHIVE_DIR: Directory where the cdrs are moved if ARCHIVE=true

TMG_ARCHIVE_DIR=/lib/tb/toolpack/setup/12358/cdr_archive

  • ARCHIVE_MAX_DAYS: Define how many days the archive file (.tgz) should be kept in TMG_ARCHIVE_DIR. This user variable is used by tbarchivecdr only.

# Assign no value to disable
ARCHIVE_MAX_DAYS=

  • ERASE_AFTER_SEND: Take effect only if ARCHIVE is false. If ERASE_AFTER_SEND is true, erase file from TMG_TEMP_DIR, else, rename and keep files in working directory.

ERASE_AFTER_SEND=false

Note: If you set ERASE_AFTER_SEND to false, the CDR text file will be available in the /home/telcobridges/cdr/ directory and renamed *.gz.already_send.

Remote Server Copy

You must create an SSH key pair and copy it to the remote server, if the remote server copy is configured. This will enable copy the backup files to the remote host without asking for a password. Follow the instructions here:

Troubleshooting

Test

  • Run the tbcopycdr script with the -v option

tbcopycdr -v

If no errors are seen in the shell, your configuration is correct. In addition, you should have a hello_world.log file on the remote host.

Log File

Transfer results are written in $TMG_TEMP_DIR/$LOG_FILE

Schedule the Scripts

  • Create a new crontab on the Tmedia

crontab -e

  • Add new lines with the cron configuration

tbcopycdr:

Frequency
Cron Configuration

Every 10 minutes

*/10 * * * * /usr/bin/tbcopycdr > /dev/null 2>&1

hourly (top of the hour)

0 * * * * /usr/bin/tbcopycdr > /dev/null 2>&1

daily (midnight)

0 0 * * * /usr/bin/tbcopycdr > /dev/null 2>&1

tbarchivecdr:

Frequency
Cron Configuration

daily@23h59

59 23 * * * /usr/bin/tbarchivecdr > /dev/null 2>&1

weekly (sunday@23h59)

59 23 * 7 * /usr/bin/tbarchivecdr > /dev/null 2>&1

Cron table example for a cdr copy to an external server every 10 minutes with a daily archive of all the transmitted files:

*/10 * * * * /usr/bin/tbcopycdr > /dev/null 2>&1
59 23 * * * /usr/bin/tbarchivecdr > /dev/null 2>&1
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