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1 | // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- |
2 | // vim: ts=8 sw=2 smarttab | |
3 | /* | |
4 | * Ceph - scalable distributed file system | |
5 | * | |
6 | * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net> | |
7 | * | |
8 | * This is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU Lesser General Public | |
10 | * License version 2.1, as published by the Free Software | |
11 | * Foundation. See file COPYING. | |
12 | * | |
13 | */ | |
14 | ||
15 | ||
16 | #ifndef CEPH_MOSDFAILURE_H | |
17 | #define CEPH_MOSDFAILURE_H | |
18 | ||
19 | #include "messages/PaxosServiceMessage.h" | |
20 | ||
21 | ||
11fdf7f2 TL |
22 | class MOSDFailure : public MessageInstance<MOSDFailure, PaxosServiceMessage> { |
23 | public: | |
24 | friend factory; | |
25 | private: | |
26 | static constexpr int HEAD_VERSION = 4; | |
27 | static constexpr int COMPAT_VERSION = 4; | |
7c673cae FG |
28 | |
29 | public: | |
30 | enum { | |
31 | FLAG_ALIVE = 0, // use this on its own to mark as "I'm still alive" | |
32 | FLAG_FAILED = 1, // if set, failure; if not, recovery | |
33 | FLAG_IMMEDIATE = 2, // known failure, not a timeout | |
34 | }; | |
35 | ||
36 | uuid_d fsid; | |
11fdf7f2 TL |
37 | int32_t target_osd; |
38 | entity_addrvec_t target_addrs; | |
d2e6a577 | 39 | __u8 flags = 0; |
11fdf7f2 | 40 | epoch_t epoch = 0; |
d2e6a577 | 41 | int32_t failed_for = 0; // known to be failed since at least this long |
7c673cae | 42 | |
11fdf7f2 TL |
43 | MOSDFailure() : MessageInstance(MSG_OSD_FAILURE, 0, HEAD_VERSION) { } |
44 | MOSDFailure(const uuid_d &fs, int osd, const entity_addrvec_t& av, | |
45 | int duration, epoch_t e) | |
46 | : MessageInstance(MSG_OSD_FAILURE, e, HEAD_VERSION, COMPAT_VERSION), | |
47 | fsid(fs), | |
48 | target_osd(osd), | |
49 | target_addrs(av), | |
7c673cae FG |
50 | flags(FLAG_FAILED), |
51 | epoch(e), failed_for(duration) { } | |
11fdf7f2 TL |
52 | MOSDFailure(const uuid_d &fs, int osd, const entity_addrvec_t& av, |
53 | int duration, | |
7c673cae | 54 | epoch_t e, __u8 extra_flags) |
11fdf7f2 TL |
55 | : MessageInstance(MSG_OSD_FAILURE, e, HEAD_VERSION, COMPAT_VERSION), |
56 | fsid(fs), | |
57 | target_osd(osd), | |
58 | target_addrs(av), | |
7c673cae FG |
59 | flags(extra_flags), |
60 | epoch(e), failed_for(duration) { } | |
61 | private: | |
62 | ~MOSDFailure() override {} | |
63 | ||
11fdf7f2 TL |
64 | public: |
65 | int get_target_osd() { return target_osd; } | |
66 | const entity_addrvec_t& get_target_addrs() { return target_addrs; } | |
7c673cae FG |
67 | bool if_osd_failed() const { |
68 | return flags & FLAG_FAILED; | |
69 | } | |
70 | bool is_immediate() const { | |
71 | return flags & FLAG_IMMEDIATE; | |
72 | } | |
73 | epoch_t get_epoch() const { return epoch; } | |
74 | ||
75 | void decode_payload() override { | |
11fdf7f2 | 76 | auto p = payload.cbegin(); |
7c673cae | 77 | paxos_decode(p); |
11fdf7f2 TL |
78 | decode(fsid, p); |
79 | if (header.version < 4) { | |
80 | entity_inst_t i; | |
81 | decode(i, p); | |
82 | target_osd = i.name.num(); | |
83 | target_addrs.v.push_back(i.addr); | |
84 | } else { | |
85 | decode(target_osd, p); | |
86 | decode(target_addrs, p); | |
87 | } | |
88 | decode(epoch, p); | |
89 | decode(flags, p); | |
90 | decode(failed_for, p); | |
7c673cae FG |
91 | } |
92 | ||
93 | void encode_payload(uint64_t features) override { | |
11fdf7f2 | 94 | using ceph::encode; |
7c673cae | 95 | paxos_encode(); |
11fdf7f2 TL |
96 | if (!HAVE_FEATURE(features, SERVER_NAUTILUS)) { |
97 | header.version = 3; | |
98 | header.compat_version = 3; | |
99 | encode(fsid, payload); | |
100 | encode(entity_inst_t(entity_name_t::OSD(target_osd), | |
101 | target_addrs.legacy_addr()), payload, features); | |
102 | encode(epoch, payload); | |
103 | encode(flags, payload); | |
104 | encode(failed_for, payload); | |
105 | return; | |
106 | } | |
107 | header.version = HEAD_VERSION; | |
108 | header.compat_version = COMPAT_VERSION; | |
109 | encode(fsid, payload); | |
110 | encode(target_osd, payload, features); | |
111 | encode(target_addrs, payload, features); | |
112 | encode(epoch, payload); | |
113 | encode(flags, payload); | |
114 | encode(failed_for, payload); | |
7c673cae FG |
115 | } |
116 | ||
11fdf7f2 | 117 | std::string_view get_type_name() const override { return "osd_failure"; } |
7c673cae FG |
118 | void print(ostream& out) const override { |
119 | out << "osd_failure(" | |
120 | << (if_osd_failed() ? "failed " : "recovered ") | |
121 | << (is_immediate() ? "immediate " : "timeout ") | |
11fdf7f2 TL |
122 | << "osd." << target_osd << " " << target_addrs |
123 | << " for " << failed_for << "sec e" << epoch | |
7c673cae FG |
124 | << " v" << version << ")"; |
125 | } | |
126 | }; | |
127 | ||
128 | #endif |