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cdf89f413c
This change modifies the behavior of spa_sync_time_logger when flushing the RRD database. Previously, once the sync interval elapsed, a flush would always be generated. On solid-state devices, especially when the pool was otherwise idle, this caused disks to wake up solely to write RRD data. Since RRD is best-effort telemetry, this behavior is unnecessary and wasteful. With this change, spa_sync_time_logger delays flushing until a TXG that already contains data is being synced. The RRD update is appended to that TXG instead of forcing the creation of a new write-only TXG. During pool export, flushing is forced regardless of whether the TXG contains user data. At that stage, data durability takes precedence and a write must be issued. Sponsored by: [Wasabi Technology, Inc.; Klara, Inc.] Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Mariusz Zaborski <mariusz.zaborski@klarasystems.com> Closes #18082 Closes #18138 |
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OpenZFS is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community. This repository contains the code for running OpenZFS on Linux and FreeBSD.
Official Resources
- Documentation - for using and developing this repo
- ZoL site - Linux release info & links
- Mailing lists
- OpenZFS site - for conference videos and info on other platforms (illumos, OSX, Windows, etc)
Installation
Full documentation for installing OpenZFS on your favorite operating system can be found at the Getting Started Page.
Contribute & Develop
We have a separate document with contribution guidelines.
We have a Code of Conduct.
Release
OpenZFS is released under a CDDL license.
For more details see the NOTICE, LICENSE and COPYRIGHT files; UCRL-CODE-235197
Supported Kernels
- The
METAfile contains the officially recognized supported Linux kernel versions. - Supported FreeBSD versions are any supported branches and releases starting from 13.0-RELEASE.