mirror of https://github.com/ceph/go-ceph
cephfs admin: add informational functions for cephfs mirroring
Add the functions DaemonStatus and PeerList which provide information about the cephfs mirroring daemon and mirroring peers. Signed-off-by: John Mulligan <jmulligan@redhat.com>
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@ -110,3 +110,125 @@ func (sma *SnapshotMirrorAdmin) ImportPeerBoostrapToken(fsname, token string) er
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}
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return commands.MarshalMgrCommand(sma.conn, m).NoStatus().EmptyBody().End()
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}
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// DaemonID represents the ID of a cephfs mirroring daemon.
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type DaemonID uint
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// FileSystemID represents the ID of a cephfs file system.
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type FileSystemID uint
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// PeerUUID represents the UUID of a cephfs mirroring peer.
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type PeerUUID string
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// DaemonStatusPeerRemote contains fields detailing a remote peer.
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type DaemonStatusPeerRemote struct {
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ClientName string `json:"client_name"`
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ClusterName string `json:"cluster_name"`
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FSName string `json:"fs_name"`
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}
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// DaemonStatusPeerStats contains fields detailing the a remote peer's stats.
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type DaemonStatusPeerStats struct {
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FailureCount uint64 `json:"failure_count"`
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RecoveryCount uint64 `json:"recovery_count"`
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}
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// DaemonStatusPeerInfo contains fields representing information about a remote peer.
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type DaemonStatusPeerInfo struct {
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UUID PeerUUID `json:"uuid"`
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Remote DaemonStatusPeerRemote `json:"remote"`
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Stats DaemonStatusPeerStats `json:"stats"`
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}
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// DaemonStatusFileSystemInfo represents information about a mirrored file system.
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type DaemonStatusFileSystemInfo struct {
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FileSystemID FileSystemID `json:"filesystem_id"`
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Name string `json:"name"`
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DirectoryCount int64 `json:"directory_count"`
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Peers []DaemonStatusPeerInfo `json:"peers"`
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}
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// DaemonStatusInfo maps file system IDs to information about that file system.
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type DaemonStatusInfo struct {
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DaemonID DaemonID `json:"daemon_id"`
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FileSystems []DaemonStatusFileSystemInfo `json:"filesystems"`
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}
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// DaemonStatusResults maps mirroring daemon IDs to information about that
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// mirroring daemon.
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type DaemonStatusResults []DaemonStatusInfo
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func parseDaemonStatus(res response) (DaemonStatusResults, error) {
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var dsr DaemonStatusResults
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if err := res.NoStatus().Unmarshal(&dsr).End(); err != nil {
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return nil, err
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}
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return dsr, nil
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}
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// DaemonStatus returns information on the status of cephfs mirroring daemons
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// associated with the given file system.
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//
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// Similar To:
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// ceph fs snapshot mirror daemon status <fs_name>
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func (sma *SnapshotMirrorAdmin) DaemonStatus(fsname string) (
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DaemonStatusResults, error) {
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// ---
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m := map[string]string{
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"prefix": "fs snapshot mirror daemon status",
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"fs_name": fsname,
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"format": "json",
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}
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return parseDaemonStatus(commands.MarshalMgrCommand(sma.conn, m))
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}
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// PeerInfo includes information about a cephfs mirroring peer.
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type PeerInfo struct {
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ClientName string `json:"client_name"`
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SiteName string `json:"site_name"`
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FSName string `json:"fs_name"`
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MonHost string `json:"mon_host"`
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}
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// PeerListResults maps a peer's UUID to information about that peer.
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type PeerListResults map[PeerUUID]PeerInfo
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func parsePeerList(res response) (PeerListResults, error) {
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var plr PeerListResults
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if err := res.NoStatus().Unmarshal(&plr).End(); err != nil {
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return nil, err
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}
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return plr, nil
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}
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// PeerList returns information about peers associated with the given file system.
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//
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// Similar To:
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// ceph fs snapshot mirror peer_list <fs_name>
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func (sma *SnapshotMirrorAdmin) PeerList(fsname string) (
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PeerListResults, error) {
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// ---
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m := map[string]string{
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"prefix": "fs snapshot mirror peer_list",
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"fs_name": fsname,
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"format": "json",
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}
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return parsePeerList(commands.MarshalMgrCommand(sma.conn, m))
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}
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/*
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DirMap - figure out what last_shuffled is supposed to mean and, if it is a time
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like it seems to be, how best to represent in Go.
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DirMap TODO
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ceph fs snapshot mirror dirmap
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func (sma *SnapshotMirrorAdmin) DirMap(fsname, path string) error {
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m := map[string]string{
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"prefix": "fs snapshot mirror dirmap",
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"fs_name": fsname,
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"path": path,
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"format": "json",
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}
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return commands.MarshalMgrCommand(sma.conn, m).NoStatus().EmptyBody().End()
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}
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*/
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