Thanks to visit codestin.com
Credit goes to github.com

Skip to content

Lock file feature #6

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom
Merged
merged 6 commits into from
Jun 20, 2016
Merged

Lock file feature #6

merged 6 commits into from
Jun 20, 2016

Conversation

timvaillancourt
Copy link
Contributor

@timvaillancourt timvaillancourt commented Jun 17, 2016 •
edited
Loading

Added exclusive lock capabilities after seeing it is possible for many processes to overlap each other. Lock is acquired at beginning of backup run and is released on success and failure (inside the exception handler). Lock file path is overridable.

Example logging + backup running:

$ mongodb-consistent-backup -v -c /etc/rdba/percona-backup-mongo.yml 
[2016-06-17 16:32:41,863] [DEBUG] [MainProcess] [DB:connect:20] Getting MongoDB connection to centos7-mongos1:27017
[2016-06-17 16:32:41,874] [DEBUG] [MainProcess] [Lock:acquire:17] Acquired exclusive lock on file: /tmp/mongodb-consistent-backup.lock
[2016-06-17 16:32:41,874] [INFO] [MainProcess] [Backup:run:184] Starting backup of centos7-mongos1:27017 in sharded mode
…
…
[2016-06-17 16:34:33,840] [INFO] [MainProcess] [Archiver:run:102] Archiver threads completed
[2016-06-17 16:34:33,840] [DEBUG] [MainProcess] [Lock:release:26] Releasing exclusive lock on file: /tmp/mongodb-consistent-backup.lock
[2016-06-17 16:34:33,840] [INFO] [MainProcess] [Backup:run:303] Backup completed in 111.988605022 sec

Output if you try to run another backup at the same time:

[tim@centos7 ~]$ mongodb-consistent-backup -v -c /etc/rdba/percona-backup-mongo.yml
[2016-06-17 16:32:45,088] [DEBUG] [MainProcess] [DB:connect:20] Getting MongoDB connection to centos7-mongos1:27017
[2016-06-17 16:32:45,095] [DEBUG] [MainProcess] [Lock:acquire:20] Error acquiring lock on file: /tmp/mongodb-consistent-backup.lock
[2016-06-17 16:32:45,095] [CRITICAL] [MainProcess] [Backup:run:159] Could not acquire lock! Is another mongodb-consistent-backup process running? Exiting

@timvaillancourt timvaillancourt mentioned this pull request Jun 17, 2016
Closed
@dbmurphy dbmurphy merged commit 47b617f into Percona-Lab:master Jun 20, 2016
@timvaillancourt timvaillancourt deleted the lock_file branch June 20, 2016 10:08
dbmurphy pushed a commit that referenced this pull request Feb 22, 2018
@timvaillancourt
Merge pull request #6 from timvaillancourt/travis_push_builds
6028f04 
change branch match
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Reviewers
No reviews
Assignees
No one assigned
Labels
None yet
Projects
None yet
Milestone
No milestone
Development

Successfully merging this pull request may close these issues.
2 participants
@timvaillancourt @dbmurphy