mirror of
https://github.com/chrislusf/seaweedfs
synced 2024-07-02 15:16:51 +02:00
Merge pull request #2640 from Radtoo/fsck_with_delete
Added basic deletion capabilities to fsck.
This commit is contained in:
Chris Lu
GitHub
commit
64afbc5235
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@ -6,7 +6,10 @@ import (
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"flag"
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"fmt"
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"io"
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"io/ioutil"
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"math"
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"net/http"
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"net/url"
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"os"
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"path/filepath"
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"sync"
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@ -61,7 +64,8 @@ func (c *commandVolumeFsck) Do(args []string, commandEnv *CommandEnv, writer io.
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verbose := fsckCommand.Bool("v", false, "verbose mode")
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findMissingChunksInFiler := fsckCommand.Bool("findMissingChunksInFiler", false, "see \"help volume.fsck\"")
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findMissingChunksInFilerPath := fsckCommand.String("findMissingChunksInFilerPath", "/", "used together with findMissingChunksInFiler")
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applyPurging := fsckCommand.Bool("reallyDeleteFromVolume", false, "<expert only> delete data not referenced by the filer")
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applyPurging := fsckCommand.Bool("reallyDeleteFromVolume", false, "<expert only!> after detection, delete missing data from volumes / delete missing file entries from filer")
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purgeAbsent := fsckCommand.Bool("reallyDeleteFilerEntries", false, "<expert only!> delete missing file entries from filer if the corresponding volume is missing for any reason, please ensure all still existing/expected volumes are connected! used together with findMissingChunksInFiler")
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if err = fsckCommand.Parse(args); err != nil {
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return nil
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}
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@ -98,20 +102,20 @@ func (c *commandVolumeFsck) Do(args []string, commandEnv *CommandEnv, writer io.
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if *findMissingChunksInFiler {
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// collect all filer file ids and paths
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if err = c.collectFilerFileIdAndPaths(volumeIdToVInfo, tempFolder, writer, *findMissingChunksInFilerPath, *verbose, applyPurging); err != nil {
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if err = c.collectFilerFileIdAndPaths(volumeIdToVInfo, tempFolder, writer, *findMissingChunksInFilerPath, *verbose, *purgeAbsent); err != nil {
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return fmt.Errorf("collectFilerFileIdAndPaths: %v", err)
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}
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// for each volume, check filer file ids
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if err = c.findFilerChunksMissingInVolumeServers(volumeIdToVInfo, tempFolder, writer, *verbose, applyPurging); err != nil {
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if err = c.findFilerChunksMissingInVolumeServers(volumeIdToVInfo, tempFolder, writer, *verbose, *applyPurging); err != nil {
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return fmt.Errorf("findFilerChunksMissingInVolumeServers: %v", err)
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}
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} else {
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// collect all filer file ids
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if err = c.collectFilerFileIds(tempFolder, volumeIdToVInfo, *verbose, writer); err != nil {
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if err = c.collectFilerFileIds(volumeIdToVInfo, tempFolder, writer, *verbose); err != nil {
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return fmt.Errorf("failed to collect file ids from filer: %v", err)
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}
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// volume file ids substract filer file ids
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if err = c.findExtraChunksInVolumeServers(volumeIdToVInfo, tempFolder, writer, *verbose, applyPurging); err != nil {
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// volume file ids subtract filer file ids
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if err = c.findExtraChunksInVolumeServers(volumeIdToVInfo, tempFolder, writer, *verbose, *applyPurging); err != nil {
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return fmt.Errorf("findExtraChunksInVolumeServers: %v", err)
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}
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}
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@ -119,7 +123,7 @@ func (c *commandVolumeFsck) Do(args []string, commandEnv *CommandEnv, writer io.
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return nil
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}
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func (c *commandVolumeFsck) collectFilerFileIdAndPaths(volumeIdToServer map[uint32]VInfo, tempFolder string, writer io.Writer, filerPath string, verbose bool, applyPurging *bool) error {
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func (c *commandVolumeFsck) collectFilerFileIdAndPaths(volumeIdToServer map[uint32]VInfo, tempFolder string, writer io.Writer, filerPath string, verbose bool, purgeAbsent bool) error {
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if verbose {
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fmt.Fprintf(writer, "checking each file from filer ...\n")
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@ -176,16 +180,20 @@ func (c *commandVolumeFsck) collectFilerFileIdAndPaths(volumeIdToServer map[uint
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// fmt.Fprintf(writer, "%d,%x%08x %d %s\n", i.vid, i.fileKey, i.cookie, len(i.path), i.path)
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} else {
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fmt.Fprintf(writer, "%d,%x%08x %s volume not found\n", i.vid, i.fileKey, i.cookie, i.path)
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if purgeAbsent {
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fmt.Printf("deleting path %s after volume not found", i.path)
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c.httpDelete(i.path, verbose)
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}
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}
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}
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})
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}
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func (c *commandVolumeFsck) findFilerChunksMissingInVolumeServers(volumeIdToVInfo map[uint32]VInfo, tempFolder string, writer io.Writer, verbose bool, applyPurging *bool) error {
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func (c *commandVolumeFsck) findFilerChunksMissingInVolumeServers(volumeIdToVInfo map[uint32]VInfo, tempFolder string, writer io.Writer, verbose bool, applyPurging bool) error {
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for volumeId, vinfo := range volumeIdToVInfo {
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checkErr := c.oneVolumeFileIdsCheckOneVolume(tempFolder, volumeId, writer, verbose)
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checkErr := c.oneVolumeFileIdsCheckOneVolume(tempFolder, volumeId, writer, verbose, applyPurging)
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if checkErr != nil {
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return fmt.Errorf("failed to collect file ids from volume %d on %s: %v", volumeId, vinfo.server, checkErr)
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}
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@ -193,8 +201,10 @@ func (c *commandVolumeFsck) findFilerChunksMissingInVolumeServers(volumeIdToVInf
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return nil
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}
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func (c *commandVolumeFsck) findExtraChunksInVolumeServers(volumeIdToVInfo map[uint32]VInfo, tempFolder string, writer io.Writer, verbose bool, applyPurging *bool) error {
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func (c *commandVolumeFsck) findExtraChunksInVolumeServers(volumeIdToVInfo map[uint32]VInfo, tempFolder string, writer io.Writer, verbose bool, applyPurging bool) error {
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var totalInUseCount, totalOrphanChunkCount, totalOrphanDataSize uint64
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for volumeId, vinfo := range volumeIdToVInfo {
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inUseCount, orphanFileIds, orphanDataSize, checkErr := c.oneVolumeFileIdsSubtractFilerFileIds(tempFolder, volumeId, writer, verbose)
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if checkErr != nil {
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@ -210,39 +220,53 @@ func (c *commandVolumeFsck) findExtraChunksInVolumeServers(volumeIdToVInfo map[u
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}
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}
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if *applyPurging && len(orphanFileIds) > 0 {
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if applyPurging && len(orphanFileIds) > 0 {
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if verbose {
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fmt.Fprintf(writer, "purging process for volume %d", volumeId)
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}
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if vinfo.isEcVolume {
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fmt.Fprintf(writer, "Skip purging for Erasure Coded volume %d.\n", volumeId)
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fmt.Fprintf(writer, "skip purging for Erasure Coded volume %d.\n", volumeId)
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continue
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}
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needleVID := needle.VolumeId(volumeId)
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if vinfo.isReadOnly {
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fmt.Fprintf(writer, "Skip purging for read only volume %d.\n", volumeId)
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continue
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err := markVolumeWritable(c.env.option.GrpcDialOption, needleVID, vinfo.server, true)
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if err != nil {
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return fmt.Errorf("mark volume %d read/write: %v", volumeId, err)
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}
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fmt.Fprintf(writer, "temporarily marked %d on server %v writable for forced purge\n", volumeId, vinfo.server)
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defer markVolumeWritable(c.env.option.GrpcDialOption, needleVID, vinfo.server, false)
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}
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if inUseCount == 0 {
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if err := deleteVolume(c.env.option.GrpcDialOption, needle.VolumeId(volumeId), vinfo.server); err != nil {
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return fmt.Errorf("delete volume %d: %v", volumeId, err)
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}
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} else {
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if err := c.purgeFileIdsForOneVolume(volumeId, orphanFileIds, writer); err != nil {
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return fmt.Errorf("purge for volume %d: %v", volumeId, err)
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}
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fmt.Fprintf(writer, "marked %d on server %v writable for forced purge\n", volumeId, vinfo.server)
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if verbose {
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fmt.Fprintf(writer, "purging files from volume %d\n", volumeId)
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}
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if err := c.purgeFileIdsForOneVolume(volumeId, orphanFileIds, writer); err != nil {
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return fmt.Errorf("purging volume %d: %v", volumeId, err)
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}
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}
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}
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if totalOrphanChunkCount == 0 {
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fmt.Fprintf(writer, "no orphan data\n")
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return nil
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}
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if !*applyPurging {
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if !applyPurging {
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pct := float64(totalOrphanChunkCount*100) / (float64(totalOrphanChunkCount + totalInUseCount))
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fmt.Fprintf(writer, "\nTotal\t\tentries:%d\torphan:%d\t%.2f%%\t%dB\n",
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totalOrphanChunkCount+totalInUseCount, totalOrphanChunkCount, pct, totalOrphanDataSize)
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fmt.Fprintf(writer, "This could be normal if multiple filers or no filers are used.\n")
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}
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if totalOrphanChunkCount == 0 {
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fmt.Fprintf(writer, "no orphan data\n")
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//return nil
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}
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return nil
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}
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@ -283,7 +307,7 @@ func (c *commandVolumeFsck) collectOneVolumeFileIds(tempFolder string, volumeId
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}
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func (c *commandVolumeFsck) collectFilerFileIds(tempFolder string, volumeIdToServer map[uint32]VInfo, verbose bool, writer io.Writer) error {
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func (c *commandVolumeFsck) collectFilerFileIds(volumeIdToServer map[uint32]VInfo, tempFolder string, writer io.Writer, verbose bool) error {
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if verbose {
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fmt.Fprintf(writer, "collecting file ids from filer ...\n")
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@ -333,10 +357,10 @@ func (c *commandVolumeFsck) collectFilerFileIds(tempFolder string, volumeIdToSer
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})
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}
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func (c *commandVolumeFsck) oneVolumeFileIdsCheckOneVolume(tempFolder string, volumeId uint32, writer io.Writer, verbose bool) (err error) {
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func (c *commandVolumeFsck) oneVolumeFileIdsCheckOneVolume(tempFolder string, volumeId uint32, writer io.Writer, verbose bool, applyPurging bool) (err error) {
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if verbose {
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fmt.Fprintf(writer, "find missing file chuns in volume %d ...\n", volumeId)
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fmt.Fprintf(writer, "find missing file chunks in volume %d ...\n", volumeId)
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}
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db := needle_map.NewMemDb()
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@ -366,11 +390,7 @@ func (c *commandVolumeFsck) oneVolumeFileIdsCheckOneVolume(tempFolder string, vo
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for {
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readSize, err = io.ReadFull(br, buffer)
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if err != nil || readSize != 16 {
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if err == io.EOF {
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return nil
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} else {
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break
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}
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break
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}
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item.fileKey = util.BytesToUint64(buffer[:8])
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@ -386,14 +406,51 @@ func (c *commandVolumeFsck) oneVolumeFileIdsCheckOneVolume(tempFolder string, vo
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}
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item.path = util.FullPath(string(pathBytes))
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if _, found := db.Get(types.NeedleId(item.fileKey)); !found {
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fmt.Fprintf(writer, "%d,%x%08x in %s %d not found\n", volumeId, item.fileKey, item.cookie, item.path, pathSize)
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}
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needleId := types.NeedleId(item.fileKey)
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if _, found := db.Get(needleId); !found {
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fmt.Fprintf(writer, "%s\n", item.path)
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if applyPurging {
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// defining the URL this way automatically escapes complex path names
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c.httpDelete(item.path, verbose)
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}
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}
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}
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return nil
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}
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func (c *commandVolumeFsck) httpDelete(path util.FullPath, verbose bool) {
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req, err := http.NewRequest(http.MethodDelete, "", nil)
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req.URL = &url.URL{
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Scheme: "http",
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Host: c.env.option.FilerAddress.ToHttpAddress(),
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Path: string(path),
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}
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if verbose {
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fmt.Printf("full HTTP delete request to be sent: %v\n", req)
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}
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if err != nil {
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fmt.Errorf("HTTP delete request error: %v\n", err)
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}
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return
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client := &http.Client{}
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resp, err := client.Do(req)
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if err != nil {
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fmt.Errorf("DELETE fetch error: %v\n", err)
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}
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defer resp.Body.Close()
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_, err = ioutil.ReadAll(resp.Body)
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if err != nil {
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fmt.Errorf("DELETE response error: %v\n", err)
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}
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if verbose {
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fmt.Println("delete response Status : ", resp.Status)
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fmt.Println("delete response Headers : ", resp.Header)
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}
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}
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func (c *commandVolumeFsck) oneVolumeFileIdsSubtractFilerFileIds(tempFolder string, volumeId uint32, writer io.Writer, verbose bool) (inUseCount uint64, orphanFileIds []string, orphanDataSize uint64, err error) {
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