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Top Forums UNIX for Beginners Questions & Answers How to apply the update statement in multiple servers on multiple dbs at a time .? Post 303034459 by rbatte1 on Friday 26th of April 2019 11:08:34 AM
I suppose it depends how critical your update is to synchronise. I have a vague memory about transactions being described with a two-phase commit, however that required database links to be in place and might have been Oracle only. It was a way of ensuring that updates were prepared (actually done but not committed) on all connected databases before a follow up COMMIT was sent to all. I can't remember how you set it up or what restrictions there may be, but you might get some assistance searching for that.

Two-phase commit protocol - Wikipedia has a 'brief' outline.


What database software are you using? Versions might also be important.



Kind regards,
Robin
 
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SYSTEMD-MACHINE-ID-COMMIT.SERVICE(8)			 systemd-machine-id-commit.service		      SYSTEMD-MACHINE-ID-COMMIT.SERVICE(8)

NAME
systemd-machine-id-commit.service - Commit a transient machine ID to disk SYNOPSIS
systemd-machine-id-commit.service DESCRIPTION
systemd-machine-id-commit.service is an early boot service responsible for committing transient /etc/machine-id files to a writable disk file system. See machine-id(5) for more information about machine IDs. This service is started after local-fs.target in case /etc/machine-id is a mount point of its own (usually from a memory file system such as "tmpfs") and /etc is writable. The service will invoke systemd-machine-id-setup --commit, which writes the current transient machine ID to disk and unmount the /etc/machine-id file in a race-free manner to ensure that file is always valid and accessible for other processes. See systemd-machine-id-setup(1) for details. The main use case of this service are systems where /etc/machine-id is read-only and initially not initialized. In this case, the system manager will generate a transient machine ID file on a memory file system, and mount it over /etc/machine-id, during the early boot phase. This service is then invoked in a later boot phase, as soon as /etc has been remounted writable and the ID may thus be committed to disk to make it permanent. SEE ALSO
systemd(1), systemd-machine-id-setup(1), machine-id(5), systemd-firstboot(1) systemd 237 SYSTEMD-MACHINE-ID-COMMIT.SERVICE(8)

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