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heal: large objects fix and avoid .healing.bin corner case premature exit (#20577)

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xlStorage.Healing() returns nil if there is an error reading
.healing.bin or if this latter is empty. healing.bin update()
call returns early if .healing.bin is empty; hence, no further update
of .healing.bin is possible.

A .healing.bin can be empty if os.Open() with O_TRUNC is successful
but the next Write returns an error.

To avoid this weird situation, avoid making healingTracker.update()
to return early if .healing.bin is empty, so write again.

This commit also fixes wrong error log printing when an object is 
healed in another drive in the same erasure set but not in the drive 
that is actively healing by fresh drive healing code. Currently, it prints 
<nil> instead of a factual error.

* heal: Scan .minio.sys metadata only during site-wide heal (#137)

mc admin heal always invoke .minio.sys heal, but sometimes, this latter
contains a lot of data, many service accounts, STS accounts etc, which
makes mc admin heal command very slow.

Only invoke .minio.sys healing when no bucket was specified in `mc admin
heal` command.
This commit is contained in:
Anis Eleuch
2024-10-26 10:58:27 +01:00
committed by GitHub
parent f7e176d4ca
commit f85c28e960
4 changed files with 25 additions and 27 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
cmd/global-heal.go
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@@ -459,8 +459,6 @@ func (er *erasureObjects) healErasureSet(ctx context.Context, buckets []string,
continue
}
var versionHealed bool
res, err := er.HealObject(ctx, bucket, encodedEntryName,
version.VersionID, madmin.HealOpts{
ScanMode: scanMode,
@@ -475,21 +473,23 @@ func (er *erasureObjects) healErasureSet(ctx context.Context, buckets []string,
}
} else {
// Look for the healing results
if res.After.Drives[tracker.DiskIndex].State == madmin.DriveStateOk {
versionHealed = true
if res.After.Drives[tracker.DiskIndex].State != madmin.DriveStateOk {
err = fmt.Errorf("unexpected after heal state: %s", res.After.Drives[tracker.DiskIndex].State)
}
}
if versionHealed {
if err == nil {
bgSeq.countHealed(madmin.HealItemObject)
result = healEntrySuccess(uint64(version.Size))
} else {
bgSeq.countFailed(madmin.HealItemObject)
result = healEntryFailure(uint64(version.Size))
if version.VersionID != "" {
healingLogIf(ctx, fmt.Errorf("unable to heal object %s/%s-v(%s): %w", bucket, version.Name, version.VersionID, err))
healingLogIf(ctx, fmt.Errorf("unable to heal object %s/%s (version-id=%s): %w",
bucket, version.Name, version.VersionID, err))
} else {
healingLogIf(ctx, fmt.Errorf("unable to heal object %s/%s: %w", bucket, version.Name, err))
healingLogIf(ctx, fmt.Errorf("unable to heal object %s/%s: %w",
bucket, version.Name, err))
}
}