/manticoresearch-backup

Repository for Manticore Search backup scripts

Primary LanguagePHPGNU General Public License v3.0GPL-3.0

Manticore Backup

How to use

Read the official documentation for all the information about using the tool.

Developer documentation

Structure

Folder Description
bin This directory contains various binaries to execute and also build script
bin/run This script is used for run the backup script in development and use it for debug purpose
build This directory is ignored by git but built binary goes there
src All sources code goes here
src/lib Library independent components
src/lib/func.php All helper functions that required to use the script are here
src/main.php This is the main entrypoint for starting the logic
test All tests are here

Philosophy

  1. Keep the tool as small and lightweight as possible with no/minimum external dependencies.
  2. Try to write the code so that we can use it in different OSes (Windows, Linux, and any other where PHP can be used).
  3. We can use external binaries like rsync or any others, but we should maintain the native behavior so that we can still use the script when there is no such dependency.
  4. Tests should cover every new feature or extension to the script.

Backup structure

The directory with name backup-%date% is created in the --backup-dir folder. The target created directory has the following structure:

Folder Description
data The path to store all files (tables) from the searchd data dir
config The directory is for saving configs, mainly manticore.json and manticore.conf
state The searchd state files backup dir
versions.json This file contains versions of manticore where current backup was made

Building

To build the final executable you need to to run bin/build. The executable can be found then in the ./build directory under build/manticore-backup.

We recommend using manticore-executor. In this case, the script will use the custom-built PHP binary with all required extensions to run the tool. If you are adding a new functionality which requires a specific PHP module make sure you update manticore-executor as well.

The final script is a PHP Phar archive that can be run with PHP version of 8.1.11 that contains the next extensions:

  • zstd
  • Phar
  • Posix

Developing

To develop and run the system without building process you should use bin/run script that does all the magic.

Tests

All tests are located in the test directory.

We use PHPUnit for testing.

There are two tests: unit tests of used components and integrated tests of the whole script behavior.

Metrics

The backup tool by default sends your anonymized metrics to Manticore metrics server. It helps maintainers a lot with improving the product. We respect your privacy and you can be sure that the metrics are anonymous and no sensitive info is sent out, but if you still want to disable the telemetry, please make sure you run the tool with the flag --disable-metric or use the environment variable TELEMETRY=0.

Here are all metrics that we collect:

Metric Description
collector 🏷 backup. Means this metric comes from the backup tool
os_name 🏷️ Name of the operating system
machine_id 🏷 Server identifier (the content of /etc/machine-id in Linux)
invocation Sent when backup was invoked. Boolean
failed Sent in case the backup was failed. Boolean
done Sent when the backup/restore was successful. Boolean
arg_* What arguments you used to run the tool (skipping all your index names etc.)
backup_store_versions_fails Indicates that it failed to save your Manticore version in the backup
backup_table_count Total count of backed up tables
backup_no_permissions Failed to backup due to no permissions to destination dir
backup_total_size Total size of the full backup
backup_time How long it took to backup
restore_searchd_running Failed to run restoring process due to searchd being running already
restore_no_config_file No config file in the backup on restore
restore_time How long it took to restore
fsync_time How long it took to fsync
restore_target_exists It occurs when there's a folder or index in the destination folder to restore to
terminations In case the process was terminated
signal_* What signal was used to terminate the process
tables How many tables Manticore holds
config_unreachable Passed configuration file does not exist
config_data_dir_missing Failed to parse data_dir from the passed configuration file
config_data_dir_is_relative data_dir path in the configuration file of the Manticore instance is relative