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// -*- 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) 2017 OVH
*
* 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_MOSDFORCERECOVERY_H
#define CEPH_MOSDFORCERECOVERY_H
#include "msg/Message.h"
/*
* instruct an OSD to boost/unboost recovery/backfill priority of some or all pg(s)
*/
// boost priority of recovery
static const int OFR_RECOVERY = 1;
// boost priority of backfill
static const int OFR_BACKFILL = 2;
// cancel priority boost, requeue if necessary
static const int OFR_CANCEL = 4;
class MOSDForceRecovery final : public Message {
public:
static constexpr int HEAD_VERSION = 2;
static constexpr int COMPAT_VERSION = 2;
uuid_d fsid;
std::vector<spg_t> forced_pgs;
uint8_t options = 0;
MOSDForceRecovery() : Message{MSG_OSD_FORCE_RECOVERY, HEAD_VERSION, COMPAT_VERSION} {}
MOSDForceRecovery(const uuid_d& f, char opts) :
Message{MSG_OSD_FORCE_RECOVERY, HEAD_VERSION, COMPAT_VERSION},
fsid(f), options(opts) {}
MOSDForceRecovery(const uuid_d& f, std::vector<spg_t>& pgs, char opts) :
Message{MSG_OSD_FORCE_RECOVERY, HEAD_VERSION, COMPAT_VERSION},
fsid(f), forced_pgs(pgs), options(opts) {}
private:
~MOSDForceRecovery() final {}
public:
std::string_view get_type_name() const { return "force_recovery"; }
void print(std::ostream& out) const {
out << "force_recovery(";
if (forced_pgs.empty())
out << "osd";
else
out << forced_pgs;
if (options & OFR_RECOVERY)
out << " recovery";
if (options & OFR_BACKFILL)
out << " backfill";
if (options & OFR_CANCEL)
out << " cancel";
out << ")";
}
void encode_payload(uint64_t features) {
using ceph::encode;
if (!HAVE_FEATURE(features, SERVER_MIMIC)) {
header.version = 1;
header.compat_version = 1;
std::vector<pg_t> pgs;
for (auto pgid : forced_pgs) {
pgs.push_back(pgid.pgid);
}
encode(fsid, payload);
encode(pgs, payload);
encode(options, payload);
return;
}
header.version = HEAD_VERSION;
header.compat_version = COMPAT_VERSION;
encode(fsid, payload);
encode(forced_pgs, payload);
encode(options, payload);
}
void decode_payload() {
using ceph::decode;
auto p = payload.cbegin();
if (header.version == 1) {
std::vector<pg_t> pgs;
decode(fsid, p);
decode(pgs, p);
decode(options, p);
for (auto pg : pgs) {
// note: this only works with replicated pools. if a pre-mimic mon
// tries to force a mimic+ osd on an ec pool it will not work.
forced_pgs.push_back(spg_t(pg));
}
return;
}
decode(fsid, p);
decode(forced_pgs, p);
decode(options, p);
}
private:
template<class T, typename... Args>
friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args);
};
#endif /* CEPH_MOSDFORCERECOVERY_H_ */
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