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Diffstat (limited to 'src/mon/PGMap.h')
| -rw-r--r-- | src/mon/PGMap.h | 550 |
1 files changed, 550 insertions, 0 deletions
diff --git a/src/mon/PGMap.h b/src/mon/PGMap.h new file mode 100644 index 00000000..2e3df3fa --- /dev/null +++ b/src/mon/PGMap.h @@ -0,0 +1,550 @@ +// -*- 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. + * + */ + +/* + * Placement Group Map. Placement Groups are logical sets of objects + * that are replicated by the same set of devices. pgid=(r,hash(o)&m) + * where & is a bit-wise AND and m=2^k-1 + */ + +#ifndef CEPH_PGMAP_H +#define CEPH_PGMAP_H + +#include "include/health.h" +#include "common/debug.h" +#include "common/TextTable.h" +#include "osd/osd_types.h" +#include "include/mempool.h" +#include "mon/health_check.h" +#include <sstream> + +namespace ceph { class Formatter; } + +class PGMapDigest { +public: + MEMPOOL_CLASS_HELPERS(); + virtual ~PGMapDigest() {} + + mempool::pgmap::vector<uint64_t> osd_last_seq; + + mutable std::map<int, int64_t> avail_space_by_rule; + + // aggregate state, populated by PGMap child + int64_t num_pg = 0, num_osd = 0; + int64_t num_pg_active = 0; + int64_t num_pg_unknown = 0; + mempool::pgmap::unordered_map<int32_t,pool_stat_t> pg_pool_sum; + mempool::pgmap::map<int64_t,int64_t> num_pg_by_pool; + pool_stat_t pg_sum; + osd_stat_t osd_sum; + mempool::pgmap::map<std::string,osd_stat_t> osd_sum_by_class; + mempool::pgmap::unordered_map<uint64_t,int32_t> num_pg_by_state; + struct pg_count { + int32_t acting = 0; + int32_t up_not_acting = 0; + int32_t primary = 0; + void encode(ceph::buffer::list& bl) const { + using ceph::encode; + encode(acting, bl); + encode(up_not_acting, bl); + encode(primary, bl); + } + void decode(ceph::buffer::list::const_iterator& p) { + using ceph::decode; + decode(acting, p); + decode(up_not_acting, p); + decode(primary, p); + } + }; + mempool::pgmap::unordered_map<int32_t,pg_count> num_pg_by_osd; + + mempool::pgmap::map<int64_t,interval_set<snapid_t>> purged_snaps; + + bool use_per_pool_stats() const { + return osd_sum.num_osds == osd_sum.num_per_pool_osds; + } + + // recent deltas, and summation + /** + * keep track of last deltas for each pool, calculated using + * @p pg_pool_sum as baseline. + */ + mempool::pgmap::unordered_map<int64_t, mempool::pgmap::list<std::pair<pool_stat_t, utime_t> > > per_pool_sum_deltas; + /** + * keep track of per-pool timestamp deltas, according to last update on + * each pool. + */ + mempool::pgmap::unordered_map<int64_t, utime_t> per_pool_sum_deltas_stamps; + /** + * keep track of sum deltas, per-pool, taking into account any previous + * deltas existing in @p per_pool_sum_deltas. The utime_t as second member + * of the pair is the timestamp referring to the last update (i.e., the first + * member of the pair) for a given pool. + */ + mempool::pgmap::unordered_map<int64_t, std::pair<pool_stat_t,utime_t> > per_pool_sum_delta; + + pool_stat_t pg_sum_delta; + utime_t stamp_delta; + + void get_recovery_stats( + double *misplaced_ratio, + double *degraded_ratio, + double *inactive_ratio, + double *unknown_pgs_ratio) const; + + void print_summary(ceph::Formatter *f, std::ostream *out) const; + void print_oneline_summary(ceph::Formatter *f, std::ostream *out) const; + + void recovery_summary(ceph::Formatter *f, std::list<std::string> *psl, + const pool_stat_t& pool_sum) const; + void overall_recovery_summary(ceph::Formatter *f, std::list<std::string> *psl) const; + void pool_recovery_summary(ceph::Formatter *f, std::list<std::string> *psl, + uint64_t poolid) const; + void recovery_rate_summary(ceph::Formatter *f, std::ostream *out, + const pool_stat_t& delta_sum, + utime_t delta_stamp) const; + void overall_recovery_rate_summary(ceph::Formatter *f, std::ostream *out) const; + void pool_recovery_rate_summary(ceph::Formatter *f, std::ostream *out, + uint64_t poolid) const; + /** + * Obtain a formatted/plain output for client I/O, source from stats for a + * given @p delta_sum pool over a given @p delta_stamp period of time. + */ + void client_io_rate_summary(ceph::Formatter *f, std::ostream *out, + const pool_stat_t& delta_sum, + utime_t delta_stamp) const; + /** + * Obtain a formatted/plain output for the overall client I/O, which is + * calculated resorting to @p pg_sum_delta and @p stamp_delta. + */ + void overall_client_io_rate_summary(ceph::Formatter *f, std::ostream *out) const; + /** + * Obtain a formatted/plain output for client I/O over a given pool + * with id @p pool_id. We will then obtain pool-specific data + * from @p per_pool_sum_delta. + */ + void pool_client_io_rate_summary(ceph::Formatter *f, std::ostream *out, + uint64_t poolid) const; + /** + * Obtain a formatted/plain output for cache tier IO, source from stats for a + * given @p delta_sum pool over a given @p delta_stamp period of time. + */ + void cache_io_rate_summary(ceph::Formatter *f, std::ostream *out, + const pool_stat_t& delta_sum, + utime_t delta_stamp) const; + /** + * Obtain a formatted/plain output for the overall cache tier IO, which is + * calculated resorting to @p pg_sum_delta and @p stamp_delta. + */ + void overall_cache_io_rate_summary(ceph::Formatter *f, std::ostream *out) const; + /** + * Obtain a formatted/plain output for cache tier IO over a given pool + * with id @p pool_id. We will then obtain pool-specific data + * from @p per_pool_sum_delta. + */ + void pool_cache_io_rate_summary(ceph::Formatter *f, std::ostream *out, + uint64_t poolid) const; + + /** + * Return the number of additional bytes that can be stored in this + * pool before the first OSD fills up, accounting for PG overhead. + */ + int64_t get_pool_free_space(const OSDMap &osd_map, int64_t poolid) const; + + + /** + * Dump pool usage and io ops/bytes, used by "ceph df" command + */ + virtual void dump_pool_stats_full(const OSDMap &osd_map, std::stringstream *ss, + ceph::Formatter *f, bool verbose) const; + void dump_cluster_stats(std::stringstream *ss, ceph::Formatter *f, bool verbose) const; + static void dump_object_stat_sum(TextTable &tbl, ceph::Formatter *f, + const pool_stat_t &pool_stat, + uint64_t avail, + float raw_used_rate, + bool verbose, bool per_pool, + const pg_pool_t *pool); + + size_t get_num_pg_by_osd(int osd) const { + auto p = num_pg_by_osd.find(osd); + if (p == num_pg_by_osd.end()) + return 0; + else + return p->second.acting; + } + int get_num_primary_pg_by_osd(int osd) const { + auto p = num_pg_by_osd.find(osd); + if (p == num_pg_by_osd.end()) + return 0; + else + return p->second.primary; + } + + ceph_statfs get_statfs(OSDMap &osdmap, + boost::optional<int64_t> data_pool) const; + + int64_t get_rule_avail(int ruleno) const { + auto i = avail_space_by_rule.find(ruleno); + if (i != avail_space_by_rule.end()) + return avail_space_by_rule[ruleno]; + else + return 0; + } + + // kill me post-mimic or -nautilus + bool definitely_converted_snapsets() const { + // false negative is okay; false positive is not! + return + num_pg && + num_pg_unknown == 0 && + pg_sum.stats.sum.num_legacy_snapsets == 0; + } + + uint64_t get_last_osd_stat_seq(int osd) { + if (osd < (int)osd_last_seq.size()) + return osd_last_seq[osd]; + return 0; + } + + void encode(ceph::buffer::list& bl, uint64_t features) const; + void decode(ceph::buffer::list::const_iterator& p); + void dump(ceph::Formatter *f) const; + static void generate_test_instances(std::list<PGMapDigest*>& ls); +}; +WRITE_CLASS_ENCODER(PGMapDigest::pg_count); +WRITE_CLASS_ENCODER_FEATURES(PGMapDigest); + +class PGMap : public PGMapDigest { +public: + MEMPOOL_CLASS_HELPERS(); + + // the map + version_t version; + epoch_t last_osdmap_epoch; // last osdmap epoch i applied to the pgmap + epoch_t last_pg_scan; // osdmap epoch + mempool::pgmap::unordered_map<int32_t,osd_stat_t> osd_stat; + mempool::pgmap::unordered_map<pg_t,pg_stat_t> pg_stat; + + typedef mempool::pgmap::map< + std::pair<int64_t, int>, // <pool, osd> + store_statfs_t> + per_osd_pool_statfs_t; + + per_osd_pool_statfs_t pool_statfs; + + class Incremental { + public: + MEMPOOL_CLASS_HELPERS(); + version_t version; + mempool::pgmap::map<pg_t,pg_stat_t> pg_stat_updates; + epoch_t osdmap_epoch; + epoch_t pg_scan; // osdmap epoch + mempool::pgmap::set<pg_t> pg_remove; + utime_t stamp; + per_osd_pool_statfs_t pool_statfs_updates; + + private: + mempool::pgmap::map<int32_t,osd_stat_t> osd_stat_updates; + mempool::pgmap::set<int32_t> osd_stat_rm; + public: + + const mempool::pgmap::map<int32_t, osd_stat_t> &get_osd_stat_updates() const { + return osd_stat_updates; + } + const mempool::pgmap::set<int32_t> &get_osd_stat_rm() const { + return osd_stat_rm; + } + template<typename OsdStat> + void update_stat(int32_t osd, OsdStat&& stat) { + osd_stat_updates[osd] = std::forward<OsdStat>(stat); + } + void stat_osd_out(int32_t osd) { + osd_stat_updates[osd] = osd_stat_t(); + } + void stat_osd_down_up(int32_t osd, const PGMap& pg_map) { + // 0 the op_queue_age_hist for this osd + auto p = osd_stat_updates.find(osd); + if (p != osd_stat_updates.end()) { + p->second.op_queue_age_hist.clear(); + return; + } + auto q = pg_map.osd_stat.find(osd); + if (q != pg_map.osd_stat.end()) { + osd_stat_t& t = osd_stat_updates[osd] = q->second; + t.op_queue_age_hist.clear(); + } + } + void rm_stat(int32_t osd) { + osd_stat_rm.insert(osd); + osd_stat_updates.erase(osd); + } + void dump(ceph::Formatter *f) const; + static void generate_test_instances(std::list<Incremental*>& o); + + Incremental() : version(0), osdmap_epoch(0), pg_scan(0) {} + }; + + + // aggregate stats (soft state), generated by calc_stats() + mempool::pgmap::unordered_map<int,std::set<pg_t> > pg_by_osd; + mempool::pgmap::unordered_map<int,int> blocked_by_sum; + mempool::pgmap::list<std::pair<pool_stat_t, utime_t> > pg_sum_deltas; + mempool::pgmap::unordered_map<int64_t,mempool::pgmap::unordered_map<uint64_t,int32_t>> num_pg_by_pool_state; + + utime_t stamp; + + void update_pool_deltas( + CephContext *cct, + const utime_t ts, + const mempool::pgmap::unordered_map<int32_t, pool_stat_t>& pg_pool_sum_old); + void clear_delta(); + + void deleted_pool(int64_t pool) { + for (auto i = pool_statfs.begin(); i != pool_statfs.end();) { + if (i->first.first == pool) { + i = pool_statfs.erase(i); + } else { + ++i; + } + } + + pg_pool_sum.erase(pool); + num_pg_by_pool_state.erase(pool); + num_pg_by_pool.erase(pool); + per_pool_sum_deltas.erase(pool); + per_pool_sum_deltas_stamps.erase(pool); + per_pool_sum_delta.erase(pool); + } + + private: + void update_delta( + CephContext *cct, + const utime_t ts, + const pool_stat_t& old_pool_sum, + utime_t *last_ts, + const pool_stat_t& current_pool_sum, + pool_stat_t *result_pool_delta, + utime_t *result_ts_delta, + mempool::pgmap::list<std::pair<pool_stat_t,utime_t> > *delta_avg_list); + + void update_one_pool_delta(CephContext *cct, + const utime_t ts, + const int64_t pool, + const pool_stat_t& old_pool_sum); + + public: + + mempool::pgmap::set<pg_t> creating_pgs; + mempool::pgmap::map<int,std::map<epoch_t,std::set<pg_t> > > creating_pgs_by_osd_epoch; + + // Bits that use to be enum StuckPG + static const int STUCK_INACTIVE = (1<<0); + static const int STUCK_UNCLEAN = (1<<1); + static const int STUCK_UNDERSIZED = (1<<2); + static const int STUCK_DEGRADED = (1<<3); + static const int STUCK_STALE = (1<<4); + + PGMap() + : version(0), + last_osdmap_epoch(0), last_pg_scan(0) + {} + + version_t get_version() const { + return version; + } + void set_version(version_t v) { + version = v; + } + epoch_t get_last_osdmap_epoch() const { + return last_osdmap_epoch; + } + void set_last_osdmap_epoch(epoch_t e) { + last_osdmap_epoch = e; + } + epoch_t get_last_pg_scan() const { + return last_pg_scan; + } + void set_last_pg_scan(epoch_t e) { + last_pg_scan = e; + } + utime_t get_stamp() const { + return stamp; + } + void set_stamp(utime_t s) { + stamp = s; + } + + pool_stat_t get_pg_pool_sum_stat(int64_t pool) const { + auto p = pg_pool_sum.find(pool); + if (p != pg_pool_sum.end()) + return p->second; + return pool_stat_t(); + } + + osd_stat_t get_osd_sum(const std::set<int>& osds) const { + if (osds.empty()) // all + return osd_sum; + osd_stat_t sum; + for (auto i : osds) { + auto os = get_osd_stat(i); + if (os) + sum.add(*os); + } + return sum; + } + + const osd_stat_t *get_osd_stat(int osd) const { + auto i = osd_stat.find(osd); + if (i == osd_stat.end()) { + return nullptr; + } + return &i->second; + } + + + void apply_incremental(CephContext *cct, const Incremental& inc); + void calc_stats(); + void stat_pg_add(const pg_t &pgid, const pg_stat_t &s, + bool sameosds=false); + bool stat_pg_sub(const pg_t &pgid, const pg_stat_t &s, + bool sameosds=false); + void calc_purged_snaps(); + void calc_osd_sum_by_class(const OSDMap& osdmap); + void stat_osd_add(int osd, const osd_stat_t &s); + void stat_osd_sub(int osd, const osd_stat_t &s); + + void encode(ceph::buffer::list &bl, uint64_t features=-1) const; + void decode(ceph::buffer::list::const_iterator &bl); + + /// encode subset of our data to a PGMapDigest + void encode_digest(const OSDMap& osdmap, + ceph::buffer::list& bl, uint64_t features); + + int64_t get_rule_avail(const OSDMap& osdmap, int ruleno) const; + void get_rules_avail(const OSDMap& osdmap, + std::map<int,int64_t> *avail_map) const; + void dump(ceph::Formatter *f, bool with_net = true) const; + void dump_basic(ceph::Formatter *f) const; + void dump_pg_stats(ceph::Formatter *f, bool brief) const; + void dump_pool_stats(ceph::Formatter *f) const; + void dump_osd_stats(ceph::Formatter *f, bool with_net = true) const; + void dump_osd_ping_times(ceph::Formatter *f) const; + void dump_delta(ceph::Formatter *f) const; + void dump_filtered_pg_stats(ceph::Formatter *f, std::set<pg_t>& pgs) const; + void dump_pool_stats_full(const OSDMap &osd_map, std::stringstream *ss, + ceph::Formatter *f, bool verbose) const override { + get_rules_avail(osd_map, &avail_space_by_rule); + PGMapDigest::dump_pool_stats_full(osd_map, ss, f, verbose); + } + + /* + * Dump client io rate, recovery io rate, cache io rate and recovery information. + * this function is used by "ceph osd pool stats" command + */ + void dump_pool_stats_and_io_rate(int64_t poolid, const OSDMap &osd_map, ceph::Formatter *f, + std::stringstream *ss) const; + + void dump_pg_stats_plain( + std::ostream& ss, + const mempool::pgmap::unordered_map<pg_t, pg_stat_t>& pg_stats, + bool brief) const; + void get_stuck_stats( + int types, const utime_t cutoff, + mempool::pgmap::unordered_map<pg_t, pg_stat_t>& stuck_pgs) const; + bool get_stuck_counts(const utime_t cutoff, std::map<std::string, int>& note) const; + void dump_stuck(ceph::Formatter *f, int types, utime_t cutoff) const; + void dump_stuck_plain(std::ostream& ss, int types, utime_t cutoff) const; + int dump_stuck_pg_stats(std::stringstream &ds, + ceph::Formatter *f, + int threshold, + std::vector<std::string>& args) const; + void dump(std::ostream& ss) const; + void dump_basic(std::ostream& ss) const; + void dump_pg_stats(std::ostream& ss, bool brief) const; + void dump_pg_sum_stats(std::ostream& ss, bool header) const; + void dump_pool_stats(std::ostream& ss, bool header) const; + void dump_osd_stats(std::ostream& ss) const; + void dump_osd_sum_stats(std::ostream& ss) const; + void dump_filtered_pg_stats(std::ostream& ss, std::set<pg_t>& pgs) const; + + void dump_osd_perf_stats(ceph::Formatter *f) const; + void print_osd_perf_stats(std::ostream *ss) const; + + void dump_osd_blocked_by_stats(ceph::Formatter *f) const; + void print_osd_blocked_by_stats(std::ostream *ss) const; + + void get_filtered_pg_stats(uint64_t state, int64_t poolid, int64_t osdid, + bool primary, std::set<pg_t>& pgs) const; + + void get_health_checks( + CephContext *cct, + const OSDMap& osdmap, + health_check_map_t *checks) const; + + static void generate_test_instances(std::list<PGMap*>& o); +}; +WRITE_CLASS_ENCODER_FEATURES(PGMap) + +inline std::ostream& operator<<(std::ostream& out, const PGMapDigest& m) { + m.print_oneline_summary(NULL, &out); + return out; +} + +int process_pg_map_command( + const std::string& prefix, + const cmdmap_t& cmdmap, + const PGMap& pg_map, + const OSDMap& osdmap, + ceph::Formatter *f, + std::stringstream *ss, + ceph::buffer::list *odata); + +class PGMapUpdater +{ +public: + static void check_osd_map( + CephContext *cct, + const OSDMap &osdmap, + const PGMap& pg_map, + PGMap::Incremental *pending_inc); + + // mark pg's state stale if its acting primary osd is down + static void check_down_pgs( + const OSDMap &osd_map, + const PGMap &pg_map, + bool check_all, + const std::set<int>& need_check_down_pg_osds, + PGMap::Incremental *pending_inc); +}; + +namespace reweight { +/* Assign a lower weight to overloaded OSDs. + * + * The osds that will get a lower weight are those with with a utilization + * percentage 'oload' percent greater than the average utilization. + */ + int by_utilization(const OSDMap &osd_map, + const PGMap &pg_map, + int oload, + double max_changef, + int max_osds, + bool by_pg, const std::set<int64_t> *pools, + bool no_increasing, + mempool::osdmap::map<int32_t, uint32_t>* new_weights, + std::stringstream *ss, + std::string *out_str, + ceph::Formatter *f); +} + +#endif |