Обсуждение: Index bloat? Try pgindexrebuild, a production friendly index debloater
Hello all, If you use/update a PostgreSQL server for a long time, one problem you may come across is index bloat. Your database will grow in size on your disk, your indexes getting larger on disk. It's no fun when your database fills up the disk and won't start anymore. I've had this problem when using Nominatim, an open source address geocoder for OpenStreetMap/ There are several solutions to this, but I wanted a way to fix index bloat while still being able to use the database as a production database, so I wrote pgindexrebuild: https://github.com/rory/pgindexrebuild It uses CREATE INDEX CONCURRENTLY to create a new index and replace the old bloated one afterwards. The CONCURRENTLY ensure that you can still read and write from the table while it is creating a new index. It has some nice things like lock files, bloat thresholds, and logging, to allow you to put it in cron and forget about it. "Set up and forget" is a design goal. Although I'm using this often, I'm always open to suggestions about braindead things I might be doing. ☺ Suggestions welcome! This is inspired by [pgtoolkit](https://github.com/grayhemp/pgtoolkit) which does the same thing for table bloat. --
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Re: Index bloat? Try pgindexrebuild, a production friendly index debloater
От
"Gunnar \"Nick\" Bluth"
Дата:
Am 06.09.2016 um 09:16 schrieb Rory McCann: > Hello all, Hi Rory, > > If you use/update a PostgreSQL server for a long time, > one problem you may come across is index bloat. Your database will grow > in size on your disk, your indexes getting larger on disk. It's no fun > when your database fills up the disk and won't start anymore. I've had > this problem when using Nominatim, an open source address geocoder for > OpenStreetMap/ > > There are several solutions to this, but I wanted a way to fix index > bloat while still being able to use the database as a production > database, so I wrote pgindexrebuild: > > https://github.com/rory/pgindexrebuild Sounds promising. You might want to post that to -announce as well? Cheers, -- Gunnar "Nick" Bluth RHCE/SCLA Mobil +49 172 8853339 Email: gunnar.bluth@pro-open.de _____________________________________________________________ In 1984 mainstream users were choosing VMS over UNIX. Ten years later they are choosing Windows over UNIX. What part of that message aren't you getting? - Tom Payne