49700386d0
- Document and adjust balance thresholds and periods (FATE#325529 jsc#SLE-3188). * README: document impact of balance + quota groups * sysconfig: reduce default balance usage thresholds * sysconfig: document using systemd.time(7) for frequency of operations * btrfsmaintenance-refresh-cron.sh: validate periods for cron-based systems - Remove python dependency (FATE#326736 jsc#SLE-4130). * btrfs-defrag-plugin: remove dependency on zypp-plugin-python - Added patches: * 0001-README-document-impact-of-balance-quota-groups.patch * 0002-sysconfig-reduce-default-balance-usage-thresholds-fa.patch * 0003-sysconfig-document-using-systemd.time-7-for-frequenc.patch * 0004-btrfsmaintenance-refresh-cron.sh-validate-periods-fo.patch * 0005-btrfs-defrag-plugin-remove-dependency-on-zypp-plugin.patch - Added source: * btrfs-defrag-plugin.sh - Removed patch: * python3-support-bsc1070322.diff OBS-URL: https://build.opensuse.org/request/show/684484 OBS-URL: https://build.opensuse.org/package/show/filesystems/btrfsmaintenance?expand=0&rev=44
57 lines
2.1 KiB
Diff
57 lines
2.1 KiB
Diff
From 194fd3a02f686737ae7d266d72d35a3418a5903b Mon Sep 17 00:00:00 2001
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From: Jeff Mahoney <jeffm@suse.com>
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Date: Fri, 25 Jan 2019 13:29:20 -0500
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Subject: sysconfig: reduce default balance usage thresholds
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References: fate#325529 jsc#SLE-3188
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In the early days of btrfs, the only way to clean up empty block groups
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was to perform a balance operation to coalesce block groups that were
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mostly free and release the newly empty block groups.
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Since then, btrfs cleans up empty block groups automatically so the need
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for regular aggressive balancing has been reduced substantially. Since
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workload shifts could still produce ENOSPC issues, we still want to
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perform a periodic balance but we can do it much less aggressively.
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---
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sysconfig.btrfsmaintenance | 8 ++++----
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1 file changed, 4 insertions(+), 4 deletions(-)
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diff --git a/sysconfig.btrfsmaintenance b/sysconfig.btrfsmaintenance
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index 4088254..5a34c83 100644
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--- a/sysconfig.btrfsmaintenance
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+++ b/sysconfig.btrfsmaintenance
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@@ -52,18 +52,18 @@ BTRFS_BALANCE_PERIOD="weekly"
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## Path: System/File systems/btrfs
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## Type: string
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-## Default: "1 5 10 20 30 40 50"
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+## Default: "5 10"
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#
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# The usage percent for balancing data block groups.
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#
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# Note: default values should not disturb normal work but may not reclaim
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# enough block groups. If you observe that, add higher values but beware that
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# this will increase IO load on the system.
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-BTRFS_BALANCE_DUSAGE="1 5 10 20 30 40 50"
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+BTRFS_BALANCE_DUSAGE="5 10"
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## Path: System/File systems/btrfs
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## Type: string
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-## Default: "1 5 10 20 30"
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+## Default: "3"
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#
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# The usage percent for balancing metadata block groups. The values are also
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# used in case the filesystem has mixed blockgroups.
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@@ -71,7 +71,7 @@ BTRFS_BALANCE_DUSAGE="1 5 10 20 30 40 50"
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# Note: default values should not disturb normal work but may not reclaim
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# enough block groups. If you observe that, add higher values but beware that
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# this will increase IO load on the system.
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-BTRFS_BALANCE_MUSAGE="1 5 10 20 30"
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+BTRFS_BALANCE_MUSAGE="3"
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## Path: System/File systems/btrfs
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## Type: string
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--
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2.16.4
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