On Wed, Jan 7, 2015 at 5:39 AM, Peter Eisentraut <pete...@gmx.net> wrote: > Also, since you have been maintaining this tool for a while, what is the > effort for maintaining it from version to version? >From my own experience, the main source of maintenance across major versions is the modification of the WAL record format to be able to track the blocks that need to be copied from the newly promoted master to the node rewound. That has been an ongoing effort on REL9_4_STABLE and REL9_3_STABLE since this tool has been created when both versions were in development to keep the tool compatible all the time. This problem does not exist anymore on master thanks to the new WAL format able to track easily the blocks modified, limiting the maintenance necessary to actual bugs. -- Michael
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