+++ /dev/null
-// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
-// vim: ts=8 sw=2 smarttab
-/*
- * Ceph - scalable distributed file system
- *
- * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
- *
- * This is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License version 2.1, as published by the Free Software
- * Foundation. See file COPYING.
- *
- */
-
-
-#ifndef CEPH_MDSMAP_H
-#define CEPH_MDSMAP_H
-
-#include <errno.h>
-
-#include "include/types.h"
-#include "common/Clock.h"
-#include "msg/Message.h"
-#include "include/health.h"
-
-#include <set>
-#include <map>
-#include <string>
-#include <algorithm>
-
-#include "common/config.h"
-
-#include "include/CompatSet.h"
-#include "include/ceph_features.h"
-#include "common/Formatter.h"
-#include "mds/mdstypes.h"
-
-/*
-
- boot --> standby, creating, or starting.
-
-
- dne ----> creating -----> active*
- ^ ^___________/ / ^ ^
- | / / |
- destroying / / |
- ^ / / |
- | / / |
- stopped <---- stopping* <-/ / |
- \ / |
- ----- starting* ----/ |
- |
- failed |
- \ |
- \--> replay* --> reconnect* --> rejoin*
-
- * = can fail
-
-*/
-
-class CephContext;
-class health_check_map_t;
-
-extern CompatSet get_mdsmap_compat_set_all();
-extern CompatSet get_mdsmap_compat_set_default();
-extern CompatSet get_mdsmap_compat_set_base(); // pre v0.20
-
-#define MDS_FEATURE_INCOMPAT_BASE CompatSet::Feature(1, "base v0.20")
-#define MDS_FEATURE_INCOMPAT_CLIENTRANGES CompatSet::Feature(2, "client writeable ranges")
-#define MDS_FEATURE_INCOMPAT_FILELAYOUT CompatSet::Feature(3, "default file layouts on dirs")
-#define MDS_FEATURE_INCOMPAT_DIRINODE CompatSet::Feature(4, "dir inode in separate object")
-#define MDS_FEATURE_INCOMPAT_ENCODING CompatSet::Feature(5, "mds uses versioned encoding")
-#define MDS_FEATURE_INCOMPAT_OMAPDIRFRAG CompatSet::Feature(6, "dirfrag is stored in omap")
-#define MDS_FEATURE_INCOMPAT_INLINE CompatSet::Feature(7, "mds uses inline data")
-#define MDS_FEATURE_INCOMPAT_NOANCHOR CompatSet::Feature(8, "no anchor table")
-#define MDS_FEATURE_INCOMPAT_FILE_LAYOUT_V2 CompatSet::Feature(8, "file layout v2")
-
-#define MDS_FS_NAME_DEFAULT "cephfs"
-
-class MDSMap {
-public:
- /* These states are the union of the set of possible states of an MDS daemon,
- * and the set of possible states of an MDS rank */
- typedef enum {
- // States of an MDS daemon not currently holding a rank
- // ====================================================
- STATE_NULL = CEPH_MDS_STATE_NULL, // null value for fns returning this type.
- STATE_BOOT = CEPH_MDS_STATE_BOOT, // up, boot announcement. destiny unknown.
- STATE_STANDBY = CEPH_MDS_STATE_STANDBY, // up, idle. waiting for assignment by monitor.
- STATE_STANDBY_REPLAY = CEPH_MDS_STATE_STANDBY_REPLAY, // up, replaying active node, ready to take over.
-
- // States of an MDS rank, and of any MDS daemon holding that rank
- // ==============================================================
- STATE_STOPPED = CEPH_MDS_STATE_STOPPED, // down, once existed, but no subtrees. empty log. may not be held by a daemon.
-
- STATE_CREATING = CEPH_MDS_STATE_CREATING, // up, creating MDS instance (new journal, idalloc..).
- STATE_STARTING = CEPH_MDS_STATE_STARTING, // up, starting prior stopped MDS instance.
-
- STATE_REPLAY = CEPH_MDS_STATE_REPLAY, // up, starting prior failed instance. scanning journal.
- STATE_RESOLVE = CEPH_MDS_STATE_RESOLVE, // up, disambiguating distributed operations (import, rename, etc.)
- STATE_RECONNECT = CEPH_MDS_STATE_RECONNECT, // up, reconnect to clients
- STATE_REJOIN = CEPH_MDS_STATE_REJOIN, // up, replayed journal, rejoining distributed cache
- STATE_CLIENTREPLAY = CEPH_MDS_STATE_CLIENTREPLAY, // up, active
- STATE_ACTIVE = CEPH_MDS_STATE_ACTIVE, // up, active
- STATE_STOPPING = CEPH_MDS_STATE_STOPPING, // up, exporting metadata (-> standby or out)
- STATE_DNE = CEPH_MDS_STATE_DNE, // down, rank does not exist
-
- // State which a daemon may send to MDSMonitor in its beacon
- // to indicate that offline repair is required. Daemon must stop
- // immediately after indicating this state.
- STATE_DAMAGED = CEPH_MDS_STATE_DAMAGED
-
- /*
- * In addition to explicit states, an MDS rank implicitly in state:
- * - STOPPED if it is not currently associated with an MDS daemon gid but it
- * is in MDSMap::stopped
- * - FAILED if it is not currently associated with an MDS daemon gid but it
- * is in MDSMap::failed
- * - DNE if it is not currently associated with an MDS daemon gid and it is
- * missing from both MDSMap::failed and MDSMap::stopped
- */
- } DaemonState;
-
- struct mds_info_t {
- mds_gid_t global_id;
- std::string name;
- mds_rank_t rank;
- int32_t inc;
- MDSMap::DaemonState state;
- version_t state_seq;
- entity_addr_t addr;
- utime_t laggy_since;
- mds_rank_t standby_for_rank;
- std::string standby_for_name;
- fs_cluster_id_t standby_for_fscid;
- bool standby_replay;
- std::set<mds_rank_t> export_targets;
- uint64_t mds_features = 0;
-
- mds_info_t() : global_id(MDS_GID_NONE), rank(MDS_RANK_NONE), inc(0),
- state(STATE_STANDBY), state_seq(0),
- standby_for_rank(MDS_RANK_NONE),
- standby_for_fscid(FS_CLUSTER_ID_NONE),
- standby_replay(false)
- { }
-
- bool laggy() const { return !(laggy_since == utime_t()); }
- void clear_laggy() { laggy_since = utime_t(); }
-
- entity_inst_t get_inst() const { return entity_inst_t(entity_name_t::MDS(rank), addr); }
-
- void encode(bufferlist& bl, uint64_t features) const {
- if ((features & CEPH_FEATURE_MDSENC) == 0 ) encode_unversioned(bl);
- else encode_versioned(bl, features);
- }
- void decode(bufferlist::iterator& p);
- void dump(Formatter *f) const;
- void print_summary(ostream &out) const;
-
- // The long form name for use in cluster log messages`
- std::string human_name() const;
-
- static void generate_test_instances(list<mds_info_t*>& ls);
- private:
- void encode_versioned(bufferlist& bl, uint64_t features) const;
- void encode_unversioned(bufferlist& bl) const;
- };
-
-
-protected:
- // base map
- epoch_t epoch;
- bool enabled;
- std::string fs_name;
- uint32_t flags; // flags
- epoch_t last_failure; // mds epoch of last failure
- epoch_t last_failure_osd_epoch; // osd epoch of last failure; any mds entering replay needs
- // at least this osdmap to ensure the blacklist propagates.
- utime_t created, modified;
-
- mds_rank_t tableserver; // which MDS has snaptable
- mds_rank_t root; // which MDS has root directory
-
- __u32 session_timeout;
- __u32 session_autoclose;
- uint64_t max_file_size;
-
- std::vector<int64_t> data_pools; // file data pools available to clients (via an ioctl). first is the default.
- int64_t cas_pool; // where CAS objects go
- int64_t metadata_pool; // where fs metadata objects go
-
- /*
- * in: the set of logical mds #'s that define the cluster. this is the set
- * of mds's the metadata may be distributed over.
- * up: map from logical mds #'s to the addrs filling those roles.
- * failed: subset of @in that are failed.
- * stopped: set of nodes that have been initialized, but are not active.
- *
- * @up + @failed = @in. @in * @stopped = {}.
- */
-
- mds_rank_t max_mds; /* The maximum number of active MDSes. Also, the maximum rank. */
- mds_rank_t standby_count_wanted;
- string balancer; /* The name/version of the mantle balancer (i.e. the rados obj name) */
-
- std::set<mds_rank_t> in; // currently defined cluster
-
- // which ranks are failed, stopped, damaged (i.e. not held by a daemon)
- std::set<mds_rank_t> failed, stopped, damaged;
- std::map<mds_rank_t, mds_gid_t> up; // who is in those roles
- std::map<mds_gid_t, mds_info_t> mds_info;
-
- uint8_t ever_allowed_features; //< bitmap of features the cluster has allowed
- uint8_t explicitly_allowed_features; //< bitmap of features explicitly enabled
-
- bool inline_data_enabled;
-
- uint64_t cached_up_features;
-
-public:
- CompatSet compat;
-
- friend class MDSMonitor;
- friend class Filesystem;
- friend class FSMap;
-
-public:
- MDSMap()
- : epoch(0), enabled(false), fs_name(MDS_FS_NAME_DEFAULT),
- flags(CEPH_MDSMAP_DEFAULTS), last_failure(0),
- last_failure_osd_epoch(0),
- tableserver(0), root(0),
- session_timeout(0),
- session_autoclose(0),
- max_file_size(0),
- cas_pool(-1),
- metadata_pool(-1),
- max_mds(0),
- standby_count_wanted(-1),
- ever_allowed_features(0),
- explicitly_allowed_features(0),
- inline_data_enabled(false),
- cached_up_features(0)
- { }
-
- bool get_inline_data_enabled() const { return inline_data_enabled; }
- void set_inline_data_enabled(bool enabled) { inline_data_enabled = enabled; }
-
- utime_t get_session_timeout() const {
- return utime_t(session_timeout,0);
- }
- uint64_t get_max_filesize() const { return max_file_size; }
- void set_max_filesize(uint64_t m) { max_file_size = m; }
-
- int get_flags() const { return flags; }
- bool test_flag(int f) const { return flags & f; }
- void set_flag(int f) { flags |= f; }
- void clear_flag(int f) { flags &= ~f; }
-
- const std::string &get_fs_name() const {return fs_name;}
-
- void set_snaps_allowed() {
- set_flag(CEPH_MDSMAP_ALLOW_SNAPS);
- ever_allowed_features |= CEPH_MDSMAP_ALLOW_SNAPS;
- explicitly_allowed_features |= CEPH_MDSMAP_ALLOW_SNAPS;
- }
- void clear_snaps_allowed() { clear_flag(CEPH_MDSMAP_ALLOW_SNAPS); }
- bool allows_snaps() const { return test_flag(CEPH_MDSMAP_ALLOW_SNAPS); }
-
- void set_multimds_allowed() {
- set_flag(CEPH_MDSMAP_ALLOW_MULTIMDS);
- ever_allowed_features |= CEPH_MDSMAP_ALLOW_MULTIMDS;
- explicitly_allowed_features |= CEPH_MDSMAP_ALLOW_MULTIMDS;
- }
- void clear_multimds_allowed() { clear_flag(CEPH_MDSMAP_ALLOW_MULTIMDS); }
- bool allows_multimds() const { return test_flag(CEPH_MDSMAP_ALLOW_MULTIMDS); }
-
- void set_dirfrags_allowed() {
- set_flag(CEPH_MDSMAP_ALLOW_DIRFRAGS);
- ever_allowed_features |= CEPH_MDSMAP_ALLOW_DIRFRAGS;
- explicitly_allowed_features |= CEPH_MDSMAP_ALLOW_DIRFRAGS;
- }
- void clear_dirfrags_allowed() { clear_flag(CEPH_MDSMAP_ALLOW_DIRFRAGS); }
- bool allows_dirfrags() const { return test_flag(CEPH_MDSMAP_ALLOW_DIRFRAGS); }
-
- epoch_t get_epoch() const { return epoch; }
- void inc_epoch() { epoch++; }
-
- bool get_enabled() const { return enabled; }
-
- const utime_t& get_created() const { return created; }
- void set_created(utime_t ct) { modified = created = ct; }
- const utime_t& get_modified() const { return modified; }
- void set_modified(utime_t mt) { modified = mt; }
-
- epoch_t get_last_failure() const { return last_failure; }
- epoch_t get_last_failure_osd_epoch() const { return last_failure_osd_epoch; }
-
- mds_rank_t get_max_mds() const { return max_mds; }
- void set_max_mds(mds_rank_t m) { max_mds = m; }
-
- mds_rank_t get_standby_count_wanted(mds_rank_t standby_daemon_count) const {
- assert(standby_daemon_count >= 0);
- std::set<mds_rank_t> s;
- get_standby_replay_mds_set(s);
- mds_rank_t standbys_avail = (mds_rank_t)s.size()+standby_daemon_count;
- mds_rank_t wanted = std::max(0, standby_count_wanted);
- return wanted > standbys_avail ? wanted - standbys_avail : 0;
- }
- void set_standby_count_wanted(mds_rank_t n) { standby_count_wanted = n; }
- bool check_health(mds_rank_t standby_daemon_count);
-
- const std::string get_balancer() const { return balancer; }
- void set_balancer(std::string val) { balancer.assign(val); }
-
- mds_rank_t get_tableserver() const { return tableserver; }
- mds_rank_t get_root() const { return root; }
-
- const std::vector<int64_t> &get_data_pools() const { return data_pools; }
- int64_t get_first_data_pool() const { return *data_pools.begin(); }
- int64_t get_metadata_pool() const { return metadata_pool; }
- bool is_data_pool(int64_t poolid) const {
- auto p = std::find(data_pools.begin(), data_pools.end(), poolid);
- if (p == data_pools.end())
- return false;
- return true;
- }
-
- bool pool_in_use(int64_t poolid) const {
- return get_enabled() && (is_data_pool(poolid) || metadata_pool == poolid);
- }
-
- const std::map<mds_gid_t,mds_info_t>& get_mds_info() const { return mds_info; }
- const mds_info_t& get_mds_info_gid(mds_gid_t gid) const {
- return mds_info.at(gid);
- }
- const mds_info_t& get_mds_info(mds_rank_t m) const {
- assert(up.count(m) && mds_info.count(up.at(m)));
- return mds_info.at(up.at(m));
- }
- mds_gid_t find_mds_gid_by_name(const std::string& s) const {
- for (std::map<mds_gid_t,mds_info_t>::const_iterator p = mds_info.begin();
- p != mds_info.end();
- ++p) {
- if (p->second.name == s) {
- return p->first;
- }
- }
- return MDS_GID_NONE;
- }
-
- // counts
- unsigned get_num_in_mds() const {
- return in.size();
- }
- unsigned get_num_up_mds() const {
- return up.size();
- }
- mds_rank_t get_last_in_mds() const {
- auto p = in.rbegin();
- return p == in.rend() ? MDS_RANK_NONE : *p;
- }
- int get_num_failed_mds() const {
- return failed.size();
- }
- unsigned get_num_mds(int state) const {
- unsigned n = 0;
- for (std::map<mds_gid_t,mds_info_t>::const_iterator p = mds_info.begin();
- p != mds_info.end();
- ++p)
- if (p->second.state == state) ++n;
- return n;
- }
-
- // data pools
- void add_data_pool(int64_t poolid) {
- data_pools.push_back(poolid);
- }
- int remove_data_pool(int64_t poolid) {
- std::vector<int64_t>::iterator p = std::find(data_pools.begin(), data_pools.end(), poolid);
- if (p == data_pools.end())
- return -ENOENT;
- data_pools.erase(p);
- return 0;
- }
-
- // sets
- void get_mds_set(std::set<mds_rank_t>& s) const {
- s = in;
- }
- void get_up_mds_set(std::set<mds_rank_t>& s) const {
- for (std::map<mds_rank_t, mds_gid_t>::const_iterator p = up.begin();
- p != up.end();
- ++p)
- s.insert(p->first);
- }
- void get_active_mds_set(std::set<mds_rank_t>& s) const {
- get_mds_set(s, MDSMap::STATE_ACTIVE);
- }
- void get_standby_replay_mds_set(std::set<mds_rank_t>& s) const {
- get_mds_set(s, MDSMap::STATE_STANDBY_REPLAY);
- }
- void get_failed_mds_set(std::set<mds_rank_t>& s) const {
- s = failed;
- }
-
- // features
- uint64_t get_up_features() {
- if (!cached_up_features) {
- bool first = true;
- for (std::map<mds_rank_t, mds_gid_t>::const_iterator p = up.begin();
- p != up.end();
- ++p) {
- std::map<mds_gid_t, mds_info_t>::const_iterator q =
- mds_info.find(p->second);
- assert(q != mds_info.end());
- if (first) {
- cached_up_features = q->second.mds_features;
- first = false;
- } else {
- cached_up_features &= q->second.mds_features;
- }
- }
- }
- return cached_up_features;
- }
-
- /**
- * Get MDS ranks which are in but not up.
- */
- void get_down_mds_set(std::set<mds_rank_t> *s) const
- {
- assert(s != NULL);
- s->insert(failed.begin(), failed.end());
- s->insert(damaged.begin(), damaged.end());
- }
-
- int get_failed() const {
- if (!failed.empty()) return *failed.begin();
- return -1;
- }
- void get_stopped_mds_set(std::set<mds_rank_t>& s) const {
- s = stopped;
- }
- void get_recovery_mds_set(std::set<mds_rank_t>& s) const {
- s = failed;
- for (const auto& p : damaged)
- s.insert(p);
- for (const auto& p : mds_info)
- if (p.second.state >= STATE_REPLAY && p.second.state <= STATE_STOPPING)
- s.insert(p.second.rank);
- }
-
- void
- get_clientreplay_or_active_or_stopping_mds_set(std::set<mds_rank_t>& s) const {
- for (std::map<mds_gid_t, mds_info_t>::const_iterator p = mds_info.begin();
- p != mds_info.end();
- ++p)
- if (p->second.state >= STATE_CLIENTREPLAY && p->second.state <= STATE_STOPPING)
- s.insert(p->second.rank);
- }
- void get_mds_set(std::set<mds_rank_t>& s, DaemonState state) const {
- for (std::map<mds_gid_t, mds_info_t>::const_iterator p = mds_info.begin();
- p != mds_info.end();
- ++p)
- if (p->second.state == state)
- s.insert(p->second.rank);
- }
-
- void get_health(list<pair<health_status_t,std::string> >& summary,
- list<pair<health_status_t,std::string> > *detail) const;
-
- void get_health_checks(health_check_map_t *checks) const;
-
- typedef enum
- {
- AVAILABLE = 0,
- TRANSIENT_UNAVAILABLE = 1,
- STUCK_UNAVAILABLE = 2
-
- } availability_t;
-
- /**
- * Return indication of whether cluster is available. This is a
- * heuristic for clients to see if they should bother waiting to talk to
- * MDSs, or whether they should error out at startup/mount.
- *
- * A TRANSIENT_UNAVAILABLE result indicates that the cluster is in a
- * transition state like replaying, or is potentially about the fail over.
- * Clients should wait for an updated map before making a final decision
- * about whether the filesystem is mountable.
- *
- * A STUCK_UNAVAILABLE result indicates that we can't see a way that
- * the cluster is about to recover on its own, so it'll probably require
- * administrator intervention: clients should probaly not bother trying
- * to mount.
- */
- availability_t is_cluster_available() const;
-
- // mds states
- bool is_down(mds_rank_t m) const { return up.count(m) == 0; }
- bool is_up(mds_rank_t m) const { return up.count(m); }
- bool is_in(mds_rank_t m) const { return up.count(m) || failed.count(m); }
- bool is_out(mds_rank_t m) const { return !is_in(m); }
-
- bool is_failed(mds_rank_t m) const { return failed.count(m); }
- bool is_stopped(mds_rank_t m) const { return stopped.count(m); }
-
- bool is_dne(mds_rank_t m) const { return in.count(m) == 0; }
- bool is_dne_gid(mds_gid_t gid) const { return mds_info.count(gid) == 0; }
-
- /**
- * Get MDS rank state if the rank is up, else STATE_NULL
- */
- DaemonState get_state(mds_rank_t m) const {
- std::map<mds_rank_t, mds_gid_t>::const_iterator u = up.find(m);
- if (u == up.end())
- return STATE_NULL;
- return get_state_gid(u->second);
- }
-
- /**
- * Get MDS daemon status by GID
- */
- DaemonState get_state_gid(mds_gid_t gid) const {
- std::map<mds_gid_t,mds_info_t>::const_iterator i = mds_info.find(gid);
- if (i == mds_info.end())
- return STATE_NULL;
- return i->second.state;
- }
-
- const mds_info_t& get_info(const mds_rank_t m) const {
- return mds_info.at(up.at(m));
- }
- const mds_info_t& get_info_gid(const mds_gid_t gid) const {
- return mds_info.at(gid);
- }
-
- bool is_boot(mds_rank_t m) const { return get_state(m) == STATE_BOOT; }
- bool is_creating(mds_rank_t m) const { return get_state(m) == STATE_CREATING; }
- bool is_starting(mds_rank_t m) const { return get_state(m) == STATE_STARTING; }
- bool is_replay(mds_rank_t m) const { return get_state(m) == STATE_REPLAY; }
- bool is_resolve(mds_rank_t m) const { return get_state(m) == STATE_RESOLVE; }
- bool is_reconnect(mds_rank_t m) const { return get_state(m) == STATE_RECONNECT; }
- bool is_rejoin(mds_rank_t m) const { return get_state(m) == STATE_REJOIN; }
- bool is_clientreplay(mds_rank_t m) const { return get_state(m) == STATE_CLIENTREPLAY; }
- bool is_active(mds_rank_t m) const { return get_state(m) == STATE_ACTIVE; }
- bool is_stopping(mds_rank_t m) const { return get_state(m) == STATE_STOPPING; }
- bool is_active_or_stopping(mds_rank_t m) const {
- return is_active(m) || is_stopping(m);
- }
- bool is_clientreplay_or_active_or_stopping(mds_rank_t m) const {
- return is_clientreplay(m) || is_active(m) || is_stopping(m);
- }
-
- bool is_followable(mds_rank_t m) const {
- return (is_resolve(m) ||
- is_replay(m) ||
- is_rejoin(m) ||
- is_clientreplay(m) ||
- is_active(m) ||
- is_stopping(m));
- }
-
- bool is_laggy_gid(mds_gid_t gid) const {
- if (!mds_info.count(gid))
- return false;
- std::map<mds_gid_t,mds_info_t>::const_iterator p = mds_info.find(gid);
- return p->second.laggy();
- }
-
- // degraded = some recovery in process. fixes active membership and
- // recovery_set.
- bool is_degraded() const {
- if (!failed.empty() || !damaged.empty())
- return true;
- for (std::map<mds_gid_t,mds_info_t>::const_iterator p = mds_info.begin();
- p != mds_info.end();
- ++p)
- if (p->second.state >= STATE_REPLAY && p->second.state <= STATE_CLIENTREPLAY)
- return true;
- return false;
- }
- bool is_any_failed() const {
- return failed.size();
- }
- bool is_resolving() const {
- return
- get_num_mds(STATE_RESOLVE) > 0 &&
- get_num_mds(STATE_REPLAY) == 0 &&
- failed.empty() && damaged.empty();
- }
- bool is_rejoining() const {
- // nodes are rejoining cache state
- return
- get_num_mds(STATE_REJOIN) > 0 &&
- get_num_mds(STATE_REPLAY) == 0 &&
- get_num_mds(STATE_RECONNECT) == 0 &&
- get_num_mds(STATE_RESOLVE) == 0 &&
- failed.empty() && damaged.empty();
- }
- bool is_stopped() const {
- return up.empty();
- }
-
- /**
- * Get whether a rank is 'up', i.e. has
- * an MDS daemon's entity_inst_t associated
- * with it.
- */
- bool have_inst(mds_rank_t m) const {
- return up.count(m);
- }
-
- /**
- * Get the MDS daemon entity_inst_t for a rank
- * known to be up.
- */
- const entity_inst_t get_inst(mds_rank_t m) {
- assert(up.count(m));
- return mds_info[up[m]].get_inst();
- }
- const entity_addr_t get_addr(mds_rank_t m) {
- assert(up.count(m));
- return mds_info[up[m]].addr;
- }
-
- /**
- * Get the MDS daemon entity_inst_t for a rank,
- * if it is up.
- *
- * @return true if the rank was up and the inst
- * was populated, else false.
- */
- bool get_inst(mds_rank_t m, entity_inst_t& inst) {
- if (up.count(m)) {
- inst = get_inst(m);
- return true;
- }
- return false;
- }
-
- mds_rank_t get_rank_gid(mds_gid_t gid) const {
- if (mds_info.count(gid)) {
- return mds_info.at(gid).rank;
- } else {
- return MDS_RANK_NONE;
- }
- }
-
- int get_inc_gid(mds_gid_t gid) const {
- auto mds_info_entry = mds_info.find(gid);
- if (mds_info_entry != mds_info.end())
- return mds_info_entry->second.inc;
- return -1;
- }
- void encode(bufferlist& bl, uint64_t features) const;
- void decode(bufferlist::iterator& p);
- void decode(bufferlist& bl) {
- bufferlist::iterator p = bl.begin();
- decode(p);
- }
- void sanitize(std::function<bool(int64_t pool)> pool_exists);
-
- void print(ostream& out) const;
- void print_summary(Formatter *f, ostream *out) const;
-
- void dump(Formatter *f) const;
- static void generate_test_instances(list<MDSMap*>& ls);
-
- static bool state_transition_valid(DaemonState prev, DaemonState next);
-};
-WRITE_CLASS_ENCODER_FEATURES(MDSMap::mds_info_t)
-WRITE_CLASS_ENCODER_FEATURES(MDSMap)
-
-inline ostream& operator<<(ostream &out, const MDSMap &m) {
- m.print_summary(NULL, &out);
- return out;
-}
-
-#endif
Code Review / stor4nfv.git / blobdiff