Introduction Real-time/timing data synchronization tool based on rsync Use scene When two or more servers do load balancing and need to synchronize website data When data mirroring is required In other projects that require real-time file synchronization Data backup Glossary: [Sync method] Increment: Synchronize when data is changed/increased, and only add and replace files [Sync method] Mirror: Keep the data at both ends consistent with the dir structure, The following operations will be sync: delete, append and replace files and directories [Sync cycle] Real-time: Real-time monitoring of file and directory status, once there is a change, the synchronization task will be executed immediately [Sync cycle] Timing : scan files and directories at regular intervals for changes, and perform synchronization tasks when changes are detected Add a receiving task Add a receiving task on the server that receives the data and get the sync key Note: please make sure the [Sync to] directory is empty, if there are files/dirs, please make a backup to prevent the data loss of the receiving server after selecting the mirror mode in the sending task Add sending tasks Add sending tasks to the data source server After the setup is complete, check whether your two servers are configured correctly and then click the sync button to activate synchronization

I don't think you can do load balancing on a database. thiagotgc

thiagotgc IF you use AWS, use Amazon RDS for database.

how can I use load balancing if I use hetzner dedicated server? can you please explain how to setup load balancing for dedicated server? After that I will setup sync.

If I use the Sync Tool, will the sync from the 2nd time onwards only apply to the new file? And one more thing, if I delete a file on the original server, will the secondary server automatically delete that file?

If I use the Sync Tool, will the sync from the 2nd time onwards only apply to the new file? And one more thing, if I delete a file on the original server, will the secondary server automatically delete that file? Just the main server to buy the plugin or both? How is the fee calculated?

What if the Master server is offline? Will data be recorded to the slave server and then synced to Master server when it comes back online?

I do not understand, how to configure this do you need to have the purchase of the plugin on both servers?

deewinc Thats a good question. Waiting for an answer too

How to use [ Sync Tool ]

aaPanel_Kern

inguide
Hello, are you saying that all 3 servers are backed up to 1 server? Yes, as long as the file name and directory are different.

inguide

aaPanel_Kern good! thanlk you

inguide

Hello
Is the plugin a monthly fee?

aaPanel_Kern

inguide
Hello, this depends on your needs, there are monthly and annual payments

Raffi

Hi, does it manage also the database sync ? (ie : wordpress)

aaPanel_Kern

Raffi
hi,
Only support the file directory synchronization, and does not support the database

swsemnto

if i need to install both the server of sync tool
does it mean i need to pay twice?

Thanks!

aaPanel_Kern

Hello, yes, the purchased plugin can only be used in one server

aaP_ramaorientalservice

real-time sync not work ,

aaPanel_Kern

aaP_ramaorientalservice
Hello, out of sync is there any information to provide? What information does the sync log show?
What version is your operating system?

aaP_ramaorientalservice

i use Ubuntu 22.04.1 LTS, the realtime log is always empty and i need to click on sync ever, because if i modify or insert new file, the sync not start
panel version 6.8.27 ,

Manually perform sync tasks [server1] 2023-04-24 21:21:41
Manually perform sync tasks [server2] 2023-04-24 21:21:39
Manually perform sync tasks [server1] 2023-04-23 20:25:40
etc.. etc...

aaPanel_Kern

aaP_ramaorientalservice
Hello, can you try to reinstall the sync tools?

aaP_ramaorientalservice

ok solved with new installation. thx

aaPanel_Kern

ngoctuanktqdtube

How to sync mysql? please help me

aaPanel_Kern

Hello, it is recommended to use a search engine to find relevant resources. The sync tool does not synchronize the database

ngoctuanktqdtube

MIRWEB

OS : Ubuntu 20.04.6 LTS x86_64(Py3.7.9)

Files are not syncing even after adding them.
I've reinstalled several times, but the synchronization still doesn't work.

Is there another way?

aaPanel_Kern

MIRWEB
Hello, execute the command to check whether rsync and lsyncd are started.
ps aux|grep sync
If not, is it normal to try to start it manually?

/etc/init.d/lsyncd start
/etc/init.d/rsynd start
ps aux|grep sync

MIRWEB

aaPanel_Kern

/etc/init.d/lsyncd start Starting lsyncd (via systemctl): lsyncd.serviceJob for lsyncd.service failed because the service did not take the steps required by its unit configuration. See "systemctl status lsyncd.service" and "journalctl -xe" for details. failed!

The issue was not resolved, so I uninstalled and reinstalled the 'rsync tool'. However, it's not proceeding from the screen below.

aaPanel_Kern

MIRWEB
check log
systemctl status lsyncd.service

MIRWEB

aaPanel_Kern

The following message was displayed.

lsyncd.service - SYSV: Lightweight inotify based sync daemon
Loaded: loaded (/etc/init.d/lsyncd; generated)
Active: failed (Result: protocol) since Fri 2023-09-15 12:35:45 KST; 9h ago
Docs: man:systemd-sysv-generator(8)

Sep 15 12:35:45 q361-2821.cafe24.com systemd[1]: Starting SYSV: Lightweight inotify based sync daemon...
Sep 15 12:35:45 q361-2821.cafe24.com lsyncd[331026]: Starting lsyncd:
Sep 15 12:35:45 q361-2821.cafe24.com lsyncd[331046]: /usr/bin/lsyncd: error while loading shared libraries: liblua5>
Sep 15 12:35:45 q361-2821.cafe24.com systemd[1]: lsyncd.service: Can't open PID file /run/lsyncd.pid (yet?) after s>
Sep 15 12:35:45 q361-2821.cafe24.com systemd[1]: lsyncd.service: Failed with result 'protocol'.
Sep 15 12:35:45 q361-2821.cafe24.com systemd[1]: Failed to start SYSV: Lightweight inotify based sync daemo

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