X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fceph%2Fsrc%2Fmessages%2FMMDSBeacon.h;fp=src%2Fceph%2Fsrc%2Fmessages%2FMMDSBeacon.h;h=0000000000000000000000000000000000000000;hb=7da45d65be36d36b880cc55c5036e96c24b53f00;hp=a83502e85c4443f4349a7d3017a649edecfe941f;hpb=691462d09d0987b47e112d6ee8740375df3c51b2;p=stor4nfv.git diff --git a/src/ceph/src/messages/MMDSBeacon.h b/src/ceph/src/messages/MMDSBeacon.h deleted file mode 100644 index a83502e..0000000 --- a/src/ceph/src/messages/MMDSBeacon.h +++ /dev/null @@ -1,298 +0,0 @@ -// -*- 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 - * - * 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_MMDSBEACON_H -#define CEPH_MMDSBEACON_H - -#include "messages/PaxosServiceMessage.h" - -#include "include/types.h" - -#include "mds/MDSMap.h" - - - -/** - * Unique ID for each type of metric we can send to the mon, so that if the mon - * knows about the IDs then it can implement special behaviour for certain - * messages. - */ -enum mds_metric_t { - MDS_HEALTH_NULL = 0, - MDS_HEALTH_TRIM, - MDS_HEALTH_CLIENT_RECALL, - MDS_HEALTH_CLIENT_LATE_RELEASE, - MDS_HEALTH_CLIENT_RECALL_MANY, - MDS_HEALTH_CLIENT_LATE_RELEASE_MANY, - MDS_HEALTH_CLIENT_OLDEST_TID, - MDS_HEALTH_CLIENT_OLDEST_TID_MANY, - MDS_HEALTH_DAMAGE, - MDS_HEALTH_READ_ONLY, - MDS_HEALTH_SLOW_REQUEST, - MDS_HEALTH_CACHE_OVERSIZED -}; - -static inline const char *mds_metric_name(mds_metric_t m) -{ - switch (m) { - case MDS_HEALTH_TRIM: return "MDS_TRIM"; - case MDS_HEALTH_CLIENT_RECALL: return "MDS_CLIENT_RECALL"; - case MDS_HEALTH_CLIENT_LATE_RELEASE: return "MDS_CLIENT_LATE_RELEASE"; - case MDS_HEALTH_CLIENT_RECALL_MANY: return "MDS_CLIENT_RECALL_MANY"; - case MDS_HEALTH_CLIENT_LATE_RELEASE_MANY: return "MDS_CLIENT_LATE_RELEASE_MANY"; - case MDS_HEALTH_CLIENT_OLDEST_TID: return "MDS_CLIENT_OLDEST_TID"; - case MDS_HEALTH_CLIENT_OLDEST_TID_MANY: return "MDS_CLIENT_OLDEST_TID_MANY"; - case MDS_HEALTH_DAMAGE: return "MDS_DAMAGE"; - case MDS_HEALTH_READ_ONLY: return "MDS_READ_ONLY"; - case MDS_HEALTH_SLOW_REQUEST: return "MDS_SLOW_REQUEST"; - case MDS_HEALTH_CACHE_OVERSIZED: return "MDS_CACHE_OVERSIZED"; - default: - return "???"; - } -} - -static inline const char *mds_metric_summary(mds_metric_t m) -{ - switch (m) { - case MDS_HEALTH_TRIM: - return "%num% MDSs behind on trimming"; - case MDS_HEALTH_CLIENT_RECALL: - return "%num% clients failing to respond to cache pressure"; - case MDS_HEALTH_CLIENT_LATE_RELEASE: - return "%num% clients failing to respond to capability release"; - case MDS_HEALTH_CLIENT_RECALL_MANY: - return "%num% MDSs have many clients failing to respond to cache pressure"; - case MDS_HEALTH_CLIENT_LATE_RELEASE_MANY: - return "%num% MDSs have many clients failing to respond to capability " - "release"; - case MDS_HEALTH_CLIENT_OLDEST_TID: - return "%num% clients failing to advance oldest client/flush tid"; - case MDS_HEALTH_CLIENT_OLDEST_TID_MANY: - return "%num% MDSs have clients failing to advance oldest client/flush tid"; - case MDS_HEALTH_DAMAGE: - return "%num% MDSs report damaged metadata"; - case MDS_HEALTH_READ_ONLY: - return "%num% MDSs are read only"; - case MDS_HEALTH_SLOW_REQUEST: - return "%num% MDSs report slow requests"; - case MDS_HEALTH_CACHE_OVERSIZED: - return "%num% MDSs report oversized cache"; - default: - return "???"; - } -} - -/** - * This structure is designed to allow some flexibility in how we emit health - * complaints, such that: - * - The mon doesn't have to have foreknowledge of all possible metrics: we can - * implement new messages in the MDS and have the mon pass them through to the user - * (enables us to do complex checks inside the MDS, and allows mon to be older version - * than MDS) - * - The mon has enough information to perform reductions on some types of metric, for - * example complaints about the same client from multiple MDSs where we might want - * to reduce three "client X is stale on MDS y" metrics into one "client X is stale - * on 3 MDSs" message. - */ -struct MDSHealthMetric -{ - mds_metric_t type; - health_status_t sev; - std::string message; - std::map metadata; - - void encode(bufferlist& bl) const { - ENCODE_START(1, 1, bl); - assert(type != MDS_HEALTH_NULL); - ::encode((uint16_t)type, bl); - ::encode((uint8_t)sev, bl); - ::encode(message, bl); - ::encode(metadata, bl); - ENCODE_FINISH(bl); - } - - void decode(bufferlist::iterator& bl) { - DECODE_START(1, bl); - ::decode((uint16_t&)type, bl); - assert(type != MDS_HEALTH_NULL); - ::decode((uint8_t&)sev, bl); - ::decode(message, bl); - ::decode(metadata, bl); - DECODE_FINISH(bl); - } - - bool operator==(MDSHealthMetric const &other) const - { - return (type == other.type && sev == other.sev && message == other.message); - } - - MDSHealthMetric() : type(MDS_HEALTH_NULL), sev(HEALTH_OK) {} - MDSHealthMetric(mds_metric_t type_, health_status_t sev_, std::string const &message_) - : type(type_), sev(sev_), message(message_) {} -}; -WRITE_CLASS_ENCODER(MDSHealthMetric) - - -/** - * Health metrics send by the MDS to the mon, so that the mon can generate - * user friendly warnings about undesirable states. - */ -struct MDSHealth -{ - std::list metrics; - - void encode(bufferlist& bl) const { - ENCODE_START(1, 1, bl); - ::encode(metrics, bl); - ENCODE_FINISH(bl); - } - - void decode(bufferlist::iterator& bl) { - DECODE_START(1, bl); - ::decode(metrics, bl); - DECODE_FINISH(bl); - } - - bool operator==(MDSHealth const &other) const - { - return metrics == other.metrics; - } -}; -WRITE_CLASS_ENCODER(MDSHealth) - - -class MMDSBeacon : public PaxosServiceMessage { - - static const int HEAD_VERSION = 7; - static const int COMPAT_VERSION = 6; - - uuid_d fsid; - mds_gid_t global_id; - string name; - - MDSMap::DaemonState state; - version_t seq; - - mds_rank_t standby_for_rank; - string standby_for_name; - fs_cluster_id_t standby_for_fscid; - bool standby_replay; - - CompatSet compat; - - MDSHealth health; - - map sys_info; - - uint64_t mds_features; - - public: - MMDSBeacon() - : PaxosServiceMessage(MSG_MDS_BEACON, 0, HEAD_VERSION, COMPAT_VERSION), - global_id(0), state(MDSMap::STATE_NULL), standby_for_rank(MDS_RANK_NONE), - standby_for_fscid(FS_CLUSTER_ID_NONE), standby_replay(false), - mds_features(0) - { } - MMDSBeacon(const uuid_d &f, mds_gid_t g, string& n, epoch_t les, MDSMap::DaemonState st, version_t se, uint64_t feat) : - PaxosServiceMessage(MSG_MDS_BEACON, les, HEAD_VERSION, COMPAT_VERSION), - fsid(f), global_id(g), name(n), state(st), seq(se), - standby_for_rank(MDS_RANK_NONE), standby_for_fscid(FS_CLUSTER_ID_NONE), - standby_replay(false), mds_features(feat) { - } -private: - ~MMDSBeacon() override {} - -public: - uuid_d& get_fsid() { return fsid; } - mds_gid_t get_global_id() { return global_id; } - string& get_name() { return name; } - epoch_t get_last_epoch_seen() { return version; } - MDSMap::DaemonState get_state() { return state; } - version_t get_seq() { return seq; } - const char *get_type_name() const override { return "mdsbeacon"; } - mds_rank_t get_standby_for_rank() { return standby_for_rank; } - const string& get_standby_for_name() { return standby_for_name; } - const fs_cluster_id_t& get_standby_for_fscid() { return standby_for_fscid; } - bool get_standby_replay() const { return standby_replay; } - uint64_t get_mds_features() const { return mds_features; } - - CompatSet const& get_compat() const { return compat; } - void set_compat(const CompatSet& c) { compat = c; } - - MDSHealth const& get_health() const { return health; } - void set_health(const MDSHealth &h) { health = h; } - - void set_standby_for_rank(mds_rank_t r) { standby_for_rank = r; } - void set_standby_for_name(string& n) { standby_for_name = n; } - void set_standby_for_name(const char* c) { standby_for_name.assign(c); } - void set_standby_for_fscid(fs_cluster_id_t f) { standby_for_fscid = f; } - void set_standby_replay(bool r) { standby_replay = r; } - - const map& get_sys_info() const { return sys_info; } - void set_sys_info(const map& i) { sys_info = i; } - - void print(ostream& out) const override { - out << "mdsbeacon(" << global_id << "/" << name << " " << ceph_mds_state_name(state) - << " seq " << seq << " v" << version << ")"; - } - - void encode_payload(uint64_t features) override { - paxos_encode(); - ::encode(fsid, payload); - ::encode(global_id, payload); - ::encode((__u32)state, payload); - ::encode(seq, payload); - ::encode(name, payload); - ::encode(standby_for_rank, payload); - ::encode(standby_for_name, payload); - ::encode(compat, payload); - ::encode(health, payload); - if (state == MDSMap::STATE_BOOT) { - ::encode(sys_info, payload); - } - ::encode(mds_features, payload); - ::encode(standby_for_fscid, payload); - ::encode(standby_replay, payload); - } - void decode_payload() override { - bufferlist::iterator p = payload.begin(); - paxos_decode(p); - ::decode(fsid, p); - ::decode(global_id, p); - ::decode((__u32&)state, p); - ::decode(seq, p); - ::decode(name, p); - ::decode(standby_for_rank, p); - ::decode(standby_for_name, p); - ::decode(compat, p); - ::decode(health, p); - if (state == MDSMap::STATE_BOOT) { - ::decode(sys_info, p); - } - ::decode(mds_features, p); - ::decode(standby_for_fscid, p); - if (header.version >= 7) { - ::decode(standby_replay, p); - } - - if (header.version < 7 && state == MDSMap::STATE_STANDBY_REPLAY) { - // Old MDS daemons request the state, instead of explicitly - // advertising that they are configured as a replay daemon. - standby_replay = true; - state = MDSMap::STATE_STANDBY; - } - } -}; - -#endif