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"standby clone" - don't copy external config files in dry run mode

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Avoid copying files during a --dry-run as it may introduce unexpected changes
on the target node. During an actual clone operation, any problems with
copying files will be detected early and the operation aborted before
the actual database cloning commences.

GitHub #491.
This commit is contained in:
Ian Barwick
2018-08-16 13:59:00 +09:00
parent bacab8d31c
commit d4ad8ce20c
3 changed files with 44 additions and 16 deletions
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38
repmgr-action-standby.c
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@@ -471,6 +471,7 @@ do_standby_clone(void)
termPQExpBuffer(&msg);
r = test_ssh_connection(runtime_options.host, runtime_options.remote_user);
if (r != 0)
{
log_error(_("remote host \"%s\" is not reachable via SSH - unable to copy external configuration files"),
@@ -498,32 +499,41 @@ do_standby_clone(void)
termPQExpBuffer(&msg);
/*
* Here we'll attempt an initial test copy of the detected external
* files, to detect any issues before we run the base backup.
*
* Note this will exit with an error, unless -F/--force supplied.
*
* We don't do this during a --dry-run as it may introduce unexpected changes
* on the local node; during an actual clone operation, any problems with
* copying files will be detected early and the operation aborted before
* the actual database cloning commences.
*
* TODO: put the files in a temporary directory and move to their final
* destination once the database has been cloned.
*/
if (runtime_options.copy_external_config_files_destination == CONFIG_FILE_SAMEPATH)
if (runtime_options.dry_run == false)
{
/*
* Files will be placed in the same path as on the source server;
* don't delete after copying.
*/
copy_configuration_files(false);
if (runtime_options.copy_external_config_files_destination == CONFIG_FILE_SAMEPATH)
{
/*
* Files will be placed in the same path as on the source server;
* don't delete after copying.
*/
copy_configuration_files(false);
}
else
{
/*
* Files will be placed in the data directory - delete after copying.
* They'll be copied again later; see TODO above.
*/
copy_configuration_files(true);
}
else
{
/*
* Files will be placed in the data directory - delete after copying.
* They'll be copied again later; see TODO above.
*/
copy_configuration_files(true);
}
}
}