--- /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>
+ * Copyright (C) 2013,2014 Cloudwatt <libre.licensing@cloudwatt.com>
+ *
+ * Author: Loic Dachary <loic@dachary.org>
+ *
+ * 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.
+ *
+ */
+
+/* Object Store Device (OSD) Monitor
+ */
+
+#ifndef CEPH_OSDMONITOR_H
+#define CEPH_OSDMONITOR_H
+
+#include <map>
+#include <set>
+using namespace std;
+
+#include "include/types.h"
+#include "common/simple_cache.hpp"
+#include "msg/Messenger.h"
+
+#include "osd/OSDMap.h"
+#include "osd/OSDMapMapping.h"
+
+#include "CreatingPGs.h"
+#include "PaxosService.h"
+
+class Monitor;
+class PGMap;
+class MonSession;
+class MOSDMap;
+
+#include "erasure-code/ErasureCodeInterface.h"
+#include "mon/MonOpRequest.h"
+
+/// information about a particular peer's failure reports for one osd
+struct failure_reporter_t {
+ utime_t failed_since; ///< when they think it failed
+ MonOpRequestRef op; ///< failure op request
+
+ failure_reporter_t() {}
+ explicit failure_reporter_t(utime_t s) : failed_since(s) {}
+ ~failure_reporter_t() { }
+};
+
+/// information about all failure reports for one osd
+struct failure_info_t {
+ map<int, failure_reporter_t> reporters; ///< reporter -> failed_since etc
+ utime_t max_failed_since; ///< most recent failed_since
+
+ failure_info_t() {}
+
+ utime_t get_failed_since() {
+ if (max_failed_since == utime_t() && !reporters.empty()) {
+ // the old max must have canceled; recalculate.
+ for (map<int, failure_reporter_t>::iterator p = reporters.begin();
+ p != reporters.end();
+ ++p)
+ if (p->second.failed_since > max_failed_since)
+ max_failed_since = p->second.failed_since;
+ }
+ return max_failed_since;
+ }
+
+ // set the message for the latest report. return any old op request we had,
+ // if any, so we can discard it.
+ MonOpRequestRef add_report(int who, utime_t failed_since,
+ MonOpRequestRef op) {
+ map<int, failure_reporter_t>::iterator p = reporters.find(who);
+ if (p == reporters.end()) {
+ if (max_failed_since < failed_since)
+ max_failed_since = failed_since;
+ p = reporters.insert(map<int, failure_reporter_t>::value_type(who, failure_reporter_t(failed_since))).first;
+ }
+
+ MonOpRequestRef ret = p->second.op;
+ p->second.op = op;
+ return ret;
+ }
+
+ void take_report_messages(list<MonOpRequestRef>& ls) {
+ for (map<int, failure_reporter_t>::iterator p = reporters.begin();
+ p != reporters.end();
+ ++p) {
+ if (p->second.op) {
+ ls.push_back(p->second.op);
+ p->second.op.reset();
+ }
+ }
+ }
+
+ MonOpRequestRef cancel_report(int who) {
+ map<int, failure_reporter_t>::iterator p = reporters.find(who);
+ if (p == reporters.end())
+ return MonOpRequestRef();
+ MonOpRequestRef ret = p->second.op;
+ reporters.erase(p);
+ return ret;
+ }
+};
+
+
+class LastEpochClean {
+ struct Lec {
+ vector<epoch_t> epoch_by_pg;
+ ps_t next_missing = 0;
+ epoch_t floor = std::numeric_limits<epoch_t>::max();
+ void report(ps_t pg, epoch_t last_epoch_clean);
+ };
+ std::map<uint64_t, Lec> report_by_pool;
+public:
+ void report(const pg_t& pg, epoch_t last_epoch_clean);
+ void remove_pool(uint64_t pool);
+ epoch_t get_lower_bound(const OSDMap& latest) const;
+};
+
+
+class OSDMonitor : public PaxosService {
+ CephContext *cct;
+
+public:
+ OSDMap osdmap;
+
+ // [leader]
+ OSDMap::Incremental pending_inc;
+ map<int, bufferlist> pending_metadata;
+ set<int> pending_metadata_rm;
+ map<int, failure_info_t> failure_info;
+ map<int,utime_t> down_pending_out; // osd down -> out
+
+ map<int,double> osd_weight;
+
+ SimpleLRU<version_t, bufferlist> inc_osd_cache;
+ SimpleLRU<version_t, bufferlist> full_osd_cache;
+
+ bool check_failures(utime_t now);
+ bool check_failure(utime_t now, int target_osd, failure_info_t& fi);
+ void force_failure(int target_osd, int by);
+
+ // the time of last msg(MSG_ALIVE and MSG_PGTEMP) proposed without delay
+ utime_t last_attempted_minwait_time;
+
+ bool _have_pending_crush();
+ CrushWrapper &_get_stable_crush();
+ void _get_pending_crush(CrushWrapper& newcrush);
+
+ enum FastReadType {
+ FAST_READ_OFF,
+ FAST_READ_ON,
+ FAST_READ_DEFAULT
+ };
+
+ // svc
+public:
+ void create_initial() override;
+ void get_store_prefixes(std::set<string>& s) override;
+
+private:
+ void update_from_paxos(bool *need_bootstrap) override;
+ void create_pending() override; // prepare a new pending
+ void encode_pending(MonitorDBStore::TransactionRef t) override;
+ void on_active() override;
+ void on_restart() override;
+ void on_shutdown() override;
+ /**
+ * we haven't delegated full version stashing to paxosservice for some time
+ * now, making this function useless in current context.
+ */
+ void encode_full(MonitorDBStore::TransactionRef t) override { }
+ /**
+ * do not let paxosservice periodically stash full osdmaps, or we will break our
+ * locally-managed full maps. (update_from_paxos loads the latest and writes them
+ * out going forward from there, but if we just synced that may mean we skip some.)
+ */
+ bool should_stash_full() override {
+ return false;
+ }
+
+ /**
+ * hook into trim to include the oldest full map in the trim transaction
+ *
+ * This ensures that anyone post-sync will have enough to rebuild their
+ * full osdmaps.
+ */
+ void encode_trim_extra(MonitorDBStore::TransactionRef tx, version_t first) override;
+
+ void update_msgr_features();
+ int check_cluster_features(uint64_t features, stringstream &ss);
+ /**
+ * check if the cluster supports the features required by the
+ * given crush map. Outputs the daemons which don't support it
+ * to the stringstream.
+ *
+ * @returns true if the map is passable, false otherwise
+ */
+ bool validate_crush_against_features(const CrushWrapper *newcrush,
+ stringstream &ss);
+ void check_osdmap_subs();
+ void share_map_with_random_osd();
+
+ Mutex prime_pg_temp_lock = {"OSDMonitor::prime_pg_temp_lock"};
+ struct PrimeTempJob : public ParallelPGMapper::Job {
+ OSDMonitor *osdmon;
+ PrimeTempJob(const OSDMap& om, OSDMonitor *m)
+ : ParallelPGMapper::Job(&om), osdmon(m) {}
+ void process(int64_t pool, unsigned ps_begin, unsigned ps_end) override {
+ for (unsigned ps = ps_begin; ps < ps_end; ++ps) {
+ pg_t pgid(ps, pool);
+ osdmon->prime_pg_temp(*osdmap, pgid);
+ }
+ }
+ void complete() override {}
+ };
+ void maybe_prime_pg_temp();
+ void prime_pg_temp(const OSDMap& next, pg_t pgid);
+
+ ParallelPGMapper mapper; ///< for background pg work
+ OSDMapMapping mapping; ///< pg <-> osd mappings
+ unique_ptr<ParallelPGMapper::Job> mapping_job; ///< background mapping job
+ void start_mapping();
+
+ void update_logger();
+
+ void handle_query(PaxosServiceMessage *m);
+ bool preprocess_query(MonOpRequestRef op) override; // true if processed.
+ bool prepare_update(MonOpRequestRef op) override;
+ bool should_propose(double &delay) override;
+
+ version_t get_trim_to() override;
+
+ bool can_mark_down(int o);
+ bool can_mark_up(int o);
+ bool can_mark_out(int o);
+ bool can_mark_in(int o);
+
+ // ...
+ MOSDMap *build_latest_full();
+ MOSDMap *build_incremental(epoch_t first, epoch_t last);
+ void send_full(MonOpRequestRef op);
+ void send_incremental(MonOpRequestRef op, epoch_t first);
+public:
+ // @param req an optional op request, if the osdmaps are replies to it. so
+ // @c Monitor::send_reply() can mark_event with it.
+ void send_incremental(epoch_t first, MonSession *session, bool onetime,
+ MonOpRequestRef req = MonOpRequestRef());
+
+private:
+ void print_utilization(ostream &out, Formatter *f, bool tree) const;
+
+ bool check_source(PaxosServiceMessage *m, uuid_d fsid);
+
+ bool preprocess_get_osdmap(MonOpRequestRef op);
+
+ bool preprocess_mark_me_down(MonOpRequestRef op);
+
+ friend class C_AckMarkedDown;
+ bool preprocess_failure(MonOpRequestRef op);
+ bool prepare_failure(MonOpRequestRef op);
+ bool prepare_mark_me_down(MonOpRequestRef op);
+ void process_failures();
+ void take_all_failures(list<MonOpRequestRef>& ls);
+
+ bool preprocess_full(MonOpRequestRef op);
+ bool prepare_full(MonOpRequestRef op);
+
+ bool preprocess_boot(MonOpRequestRef op);
+ bool prepare_boot(MonOpRequestRef op);
+ void _booted(MonOpRequestRef op, bool logit);
+
+ void update_up_thru(int from, epoch_t up_thru);
+ bool preprocess_alive(MonOpRequestRef op);
+ bool prepare_alive(MonOpRequestRef op);
+ void _reply_map(MonOpRequestRef op, epoch_t e);
+
+ bool preprocess_pgtemp(MonOpRequestRef op);
+ bool prepare_pgtemp(MonOpRequestRef op);
+
+ bool preprocess_pg_created(MonOpRequestRef op);
+ bool prepare_pg_created(MonOpRequestRef op);
+
+ int _check_remove_pool(int64_t pool_id, const pg_pool_t &pool, ostream *ss);
+ bool _check_become_tier(
+ int64_t tier_pool_id, const pg_pool_t *tier_pool,
+ int64_t base_pool_id, const pg_pool_t *base_pool,
+ int *err, ostream *ss) const;
+ bool _check_remove_tier(
+ int64_t base_pool_id, const pg_pool_t *base_pool, const pg_pool_t *tier_pool,
+ int *err, ostream *ss) const;
+
+ int _prepare_remove_pool(int64_t pool, ostream *ss, bool no_fake);
+ int _prepare_rename_pool(int64_t pool, string newname);
+
+ bool preprocess_pool_op (MonOpRequestRef op);
+ bool preprocess_pool_op_create (MonOpRequestRef op);
+ bool prepare_pool_op (MonOpRequestRef op);
+ bool prepare_pool_op_create (MonOpRequestRef op);
+ bool prepare_pool_op_delete(MonOpRequestRef op);
+ int crush_rename_bucket(const string& srcname,
+ const string& dstname,
+ ostream *ss);
+ void check_legacy_ec_plugin(const string& plugin,
+ const string& profile) const;
+ int normalize_profile(const string& profilename,
+ ErasureCodeProfile &profile,
+ bool force,
+ ostream *ss);
+ int crush_rule_create_erasure(const string &name,
+ const string &profile,
+ int *rule,
+ ostream *ss);
+ int get_crush_rule(const string &rule_name,
+ int *crush_rule,
+ ostream *ss);
+ int get_erasure_code(const string &erasure_code_profile,
+ ErasureCodeInterfaceRef *erasure_code,
+ ostream *ss) const;
+ int prepare_pool_crush_rule(const unsigned pool_type,
+ const string &erasure_code_profile,
+ const string &rule_name,
+ int *crush_rule,
+ ostream *ss);
+ bool erasure_code_profile_in_use(
+ const mempool::osdmap::map<int64_t, pg_pool_t> &pools,
+ const string &profile,
+ ostream *ss);
+ int parse_erasure_code_profile(const vector<string> &erasure_code_profile,
+ map<string,string> *erasure_code_profile_map,
+ ostream *ss);
+ int prepare_pool_size(const unsigned pool_type,
+ const string &erasure_code_profile,
+ unsigned *size, unsigned *min_size,
+ ostream *ss);
+ int prepare_pool_stripe_width(const unsigned pool_type,
+ const string &erasure_code_profile,
+ unsigned *stripe_width,
+ ostream *ss);
+ int check_pg_num(int64_t pool, int pg_num, int size, ostream* ss);
+ int prepare_new_pool(string& name, uint64_t auid,
+ int crush_rule,
+ const string &crush_rule_name,
+ unsigned pg_num, unsigned pgp_num,
+ const string &erasure_code_profile,
+ const unsigned pool_type,
+ const uint64_t expected_num_objects,
+ FastReadType fast_read,
+ ostream *ss);
+ int prepare_new_pool(MonOpRequestRef op);
+
+ void set_pool_flags(int64_t pool_id, uint64_t flags);
+ void clear_pool_flags(int64_t pool_id, uint64_t flags);
+ bool update_pools_status();
+
+ bool prepare_set_flag(MonOpRequestRef op, int flag);
+ bool prepare_unset_flag(MonOpRequestRef op, int flag);
+
+ void _pool_op_reply(MonOpRequestRef op,
+ int ret, epoch_t epoch, bufferlist *blp=NULL);
+
+ struct C_Booted : public C_MonOp {
+ OSDMonitor *cmon;
+ bool logit;
+ C_Booted(OSDMonitor *cm, MonOpRequestRef op_, bool l=true) :
+ C_MonOp(op_), cmon(cm), logit(l) {}
+ void _finish(int r) override {
+ if (r >= 0)
+ cmon->_booted(op, logit);
+ else if (r == -ECANCELED)
+ return;
+ else if (r == -EAGAIN)
+ cmon->dispatch(op);
+ else
+ assert(0 == "bad C_Booted return value");
+ }
+ };
+
+ struct C_ReplyMap : public C_MonOp {
+ OSDMonitor *osdmon;
+ epoch_t e;
+ C_ReplyMap(OSDMonitor *o, MonOpRequestRef op_, epoch_t ee)
+ : C_MonOp(op_), osdmon(o), e(ee) {}
+ void _finish(int r) override {
+ if (r >= 0)
+ osdmon->_reply_map(op, e);
+ else if (r == -ECANCELED)
+ return;
+ else if (r == -EAGAIN)
+ osdmon->dispatch(op);
+ else
+ assert(0 == "bad C_ReplyMap return value");
+ }
+ };
+ struct C_PoolOp : public C_MonOp {
+ OSDMonitor *osdmon;
+ int replyCode;
+ int epoch;
+ bufferlist reply_data;
+ C_PoolOp(OSDMonitor * osd, MonOpRequestRef op_, int rc, int e, bufferlist *rd=NULL) :
+ C_MonOp(op_), osdmon(osd), replyCode(rc), epoch(e) {
+ if (rd)
+ reply_data = *rd;
+ }
+ void _finish(int r) override {
+ if (r >= 0)
+ osdmon->_pool_op_reply(op, replyCode, epoch, &reply_data);
+ else if (r == -ECANCELED)
+ return;
+ else if (r == -EAGAIN)
+ osdmon->dispatch(op);
+ else
+ assert(0 == "bad C_PoolOp return value");
+ }
+ };
+
+ bool preprocess_remove_snaps(MonOpRequestRef op);
+ bool prepare_remove_snaps(MonOpRequestRef op);
+
+ OpTracker op_tracker;
+
+ int load_metadata(int osd, map<string, string>& m, ostream *err);
+ void count_metadata(const string& field, Formatter *f);
+public:
+ void count_metadata(const string& field, map<string,int> *out);
+protected:
+ int get_osd_objectstore_type(int osd, std::string *type);
+ bool is_pool_currently_all_bluestore(int64_t pool_id, const pg_pool_t &pool,
+ ostream *err);
+
+ // when we last received PG stats from each osd
+ map<int,utime_t> last_osd_report;
+ // TODO: use last_osd_report to store the osd report epochs, once we don't
+ // need to upgrade from pre-luminous releases.
+ map<int,epoch_t> osd_epochs;
+ LastEpochClean last_epoch_clean;
+ bool preprocess_beacon(MonOpRequestRef op);
+ bool prepare_beacon(MonOpRequestRef op);
+ epoch_t get_min_last_epoch_clean() const;
+
+ friend class C_UpdateCreatingPGs;
+ std::map<int, std::map<epoch_t, std::set<pg_t>>> creating_pgs_by_osd_epoch;
+ std::vector<pg_t> pending_created_pgs;
+ // the epoch when the pg mapping was calculated
+ epoch_t creating_pgs_epoch = 0;
+ creating_pgs_t creating_pgs;
+ mutable std::mutex creating_pgs_lock;
+
+ creating_pgs_t update_pending_pgs(const OSDMap::Incremental& inc);
+ void trim_creating_pgs(creating_pgs_t *creating_pgs,
+ const ceph::unordered_map<pg_t,pg_stat_t>& pgm);
+ unsigned scan_for_creating_pgs(
+ const mempool::osdmap::map<int64_t,pg_pool_t>& pools,
+ const mempool::osdmap::set<int64_t>& removed_pools,
+ utime_t modified,
+ creating_pgs_t* creating_pgs) const;
+ pair<int32_t, pg_t> get_parent_pg(pg_t pgid) const;
+ void update_creating_pgs();
+ void check_pg_creates_subs();
+ epoch_t send_pg_creates(int osd, Connection *con, epoch_t next) const;
+
+ int32_t _allocate_osd_id(int32_t* existing_id);
+
+public:
+ OSDMonitor(CephContext *cct, Monitor *mn, Paxos *p, const string& service_name);
+
+ void tick() override; // check state, take actions
+
+ void get_health(list<pair<health_status_t,string> >& summary,
+ list<pair<health_status_t,string> > *detail,
+ CephContext *cct) const override;
+ bool preprocess_command(MonOpRequestRef op);
+ bool prepare_command(MonOpRequestRef op);
+ bool prepare_command_impl(MonOpRequestRef op, map<string,cmd_vartype>& cmdmap);
+
+ int validate_osd_create(
+ const int32_t id,
+ const uuid_d& uuid,
+ const bool check_osd_exists,
+ int32_t* existing_id,
+ stringstream& ss);
+ int prepare_command_osd_create(
+ const int32_t id,
+ const uuid_d& uuid,
+ int32_t* existing_id,
+ stringstream& ss);
+ void do_osd_create(const int32_t id, const uuid_d& uuid, int32_t* new_id);
+ int prepare_command_osd_purge(int32_t id, stringstream& ss);
+ int prepare_command_osd_destroy(int32_t id, stringstream& ss);
+ int _prepare_command_osd_crush_remove(
+ CrushWrapper &newcrush,
+ int32_t id,
+ int32_t ancestor,
+ bool has_ancestor,
+ bool unlink_only);
+ void do_osd_crush_remove(CrushWrapper& newcrush);
+ int prepare_command_osd_crush_remove(
+ CrushWrapper &newcrush,
+ int32_t id,
+ int32_t ancestor,
+ bool has_ancestor,
+ bool unlink_only);
+ int prepare_command_osd_remove(int32_t id);
+ int prepare_command_osd_new(
+ MonOpRequestRef op,
+ const map<string,cmd_vartype>& cmdmap,
+ const map<string,string>& secrets,
+ stringstream &ss,
+ Formatter *f);
+
+ int prepare_command_pool_set(map<string,cmd_vartype> &cmdmap,
+ stringstream& ss);
+ int prepare_command_pool_application(const string &prefix,
+ map<string,cmd_vartype> &cmdmap,
+ stringstream& ss);
+
+ bool handle_osd_timeouts(const utime_t &now,
+ std::map<int,utime_t> &last_osd_report);
+
+ void send_latest(MonOpRequestRef op, epoch_t start=0);
+ void send_latest_now_nodelete(MonOpRequestRef op, epoch_t start=0) {
+ op->mark_osdmon_event(__func__);
+ send_incremental(op, start);
+ }
+
+ int get_version(version_t ver, bufferlist& bl) override;
+ int get_version_full(version_t ver, bufferlist& bl) override;
+
+ epoch_t blacklist(const entity_addr_t& a, utime_t until);
+
+ void dump_info(Formatter *f);
+ int dump_osd_metadata(int osd, Formatter *f, ostream *err);
+ void print_nodes(Formatter *f);
+
+ void check_osdmap_sub(Subscription *sub);
+ void check_pg_creates_sub(Subscription *sub);
+
+ void do_application_enable(int64_t pool_id, const std::string &app_name);
+
+ void add_flag(int flag) {
+ if (!(osdmap.flags & flag)) {
+ if (pending_inc.new_flags < 0)
+ pending_inc.new_flags = osdmap.flags;
+ pending_inc.new_flags |= flag;
+ }
+ }
+
+ void remove_flag(int flag) {
+ if(osdmap.flags & flag) {
+ if (pending_inc.new_flags < 0)
+ pending_inc.new_flags = osdmap.flags;
+ pending_inc.new_flags &= ~flag;
+ }
+ }
+};
+
+#endif
Code Review / stor4nfv.git / blobdiff