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MonmapMonitor.cc
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MonmapMonitor.cc
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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) 2009 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.
*
*/
#include "MonmapMonitor.h"
#include "Monitor.h"
#include "OSDMonitor.h"
#include "messages/MMonCommand.h"
#include "messages/MMonJoin.h"
#include "common/ceph_argparse.h"
#include "common/errno.h"
#include <sstream>
#include "common/config.h"
#include "common/cmdparse.h"
#include "include/ceph_assert.h"
#include "include/stringify.h"
#define dout_subsys ceph_subsys_mon
#undef dout_prefix
#define dout_prefix _prefix(_dout, mon)
using namespace TOPNSPC::common;
using std::cout;
using std::dec;
using std::hex;
using std::list;
using std::map;
using std::make_pair;
using std::ostream;
using std::ostringstream;
using std::pair;
using std::set;
using std::setfill;
using std::string;
using std::stringstream;
using std::to_string;
using std::vector;
using std::unique_ptr;
using ceph::bufferlist;
using ceph::decode;
using ceph::encode;
using ceph::Formatter;
using ceph::JSONFormatter;
using ceph::make_message;
using ceph::mono_clock;
using ceph::mono_time;
using ceph::timespan_str;
static ostream& _prefix(std::ostream *_dout, Monitor &mon) {
return *_dout << "mon." << mon.name << "@" << mon.rank
<< "(" << mon.get_state_name()
<< ").monmap v" << mon.monmap->epoch << " ";
}
void MonmapMonitor::create_initial()
{
dout(10) << __func__ << " using current monmap" << dendl;
pending_map = *mon.monmap;
pending_map.epoch = 1;
if (g_conf()->mon_debug_no_initial_persistent_features) {
derr << __func__ << " mon_debug_no_initial_persistent_features=true"
<< dendl;
} else {
// initialize with default persistent features for new clusters
pending_map.persistent_features = ceph::features::mon::get_persistent();
pending_map.min_mon_release = ceph_release();
}
}
void MonmapMonitor::update_from_paxos(bool *need_bootstrap)
{
version_t version = get_last_committed();
if (version <= mon.monmap->get_epoch())
return;
dout(10) << __func__ << " version " << version
<< ", my v " << mon.monmap->epoch << dendl;
if (need_bootstrap && version != mon.monmap->get_epoch()) {
dout(10) << " signaling that we need a bootstrap" << dendl;
*need_bootstrap = true;
}
// read and decode
monmap_bl.clear();
int ret = get_version(version, monmap_bl);
ceph_assert(ret == 0);
ceph_assert(monmap_bl.length());
dout(10) << __func__ << " got " << version << dendl;
mon.monmap->decode(monmap_bl);
if (mon.store->exists("mkfs", "monmap")) {
auto t(std::make_shared<MonitorDBStore::Transaction>());
t->erase("mkfs", "monmap");
mon.store->apply_transaction(t);
}
check_subs();
// make sure we've recorded min_mon_release
string val;
if (mon.store->read_meta("min_mon_release", &val) < 0 ||
val.size() == 0 ||
atoi(val.c_str()) != (int)ceph_release()) {
dout(10) << __func__ << " updating min_mon_release meta" << dendl;
mon.store->write_meta("min_mon_release",
stringify(ceph_release()));
}
mon.notify_new_monmap(true);
}
void MonmapMonitor::create_pending()
{
pending_map = *mon.monmap;
pending_map.epoch++;
pending_map.last_changed = ceph_clock_now();
dout(10) << __func__ << " monmap epoch " << pending_map.epoch << dendl;
}
void MonmapMonitor::encode_pending(MonitorDBStore::TransactionRef t)
{
dout(10) << __func__ << " epoch " << pending_map.epoch << dendl;
ceph_assert(mon.monmap->epoch + 1 == pending_map.epoch ||
pending_map.epoch == 1); // special case mkfs!
bufferlist bl;
pending_map.encode(bl, mon.get_quorum_con_features());
put_version(t, pending_map.epoch, bl);
put_last_committed(t, pending_map.epoch);
// generate a cluster fingerprint, too?
if (pending_map.epoch == 1) {
mon.prepare_new_fingerprint(t);
}
//health
health_check_map_t next;
pending_map.check_health(&next);
encode_health(next, t);
}
class C_ApplyFeatures : public Context {
MonmapMonitor *svc;
mon_feature_t features;
ceph_release_t min_mon_release;
public:
C_ApplyFeatures(MonmapMonitor *s, const mon_feature_t& f, ceph_release_t mmr) :
svc(s), features(f), min_mon_release(mmr) { }
void finish(int r) override {
if (r >= 0) {
svc->apply_mon_features(features, min_mon_release);
} else if (r == -EAGAIN || r == -ECANCELED) {
// discard features if we're no longer on the quorum that
// established them in the first place.
return;
} else {
ceph_abort_msg("bad C_ApplyFeatures return value");
}
}
};
void MonmapMonitor::apply_mon_features(const mon_feature_t& features,
ceph_release_t min_mon_release)
{
if (!is_writeable()) {
dout(5) << __func__ << " wait for service to be writeable" << dendl;
wait_for_writeable_ctx(new C_ApplyFeatures(this, features, min_mon_release));
return;
}
// do nothing here unless we have a full quorum
if (mon.get_quorum().size() < mon.monmap->size()) {
return;
}
ceph_assert(is_writeable());
ceph_assert(features.contains_all(pending_map.persistent_features));
// we should never hit this because `features` should be the result
// of the quorum's supported features. But if it happens, die.
ceph_assert(ceph::features::mon::get_supported().contains_all(features));
mon_feature_t new_features =
(pending_map.persistent_features ^
(features & ceph::features::mon::get_persistent()));
if (new_features.empty() &&
pending_map.min_mon_release == min_mon_release) {
dout(10) << __func__ << " min_mon_release (" << (int)min_mon_release
<< ") and features (" << features << ") match" << dendl;
return;
}
if (!new_features.empty()) {
dout(1) << __func__ << " applying new features "
<< new_features << ", had " << pending_map.persistent_features
<< ", will have "
<< (new_features | pending_map.persistent_features)
<< dendl;
pending_map.persistent_features |= new_features;
}
if (min_mon_release > pending_map.min_mon_release) {
dout(1) << __func__ << " increasing min_mon_release to "
<< to_integer<int>(min_mon_release) << " (" << min_mon_release
<< ")" << dendl;
pending_map.min_mon_release = min_mon_release;
}
propose_pending();
}
void MonmapMonitor::on_active()
{
if (get_last_committed() >= 1 && !mon.has_ever_joined) {
// make note of the fact that i was, once, part of the quorum.
dout(10) << "noting that i was, once, part of an active quorum." << dendl;
/* This is some form of nasty in-breeding we have between the MonmapMonitor
and the Monitor itself. We should find a way to get rid of it given our
new architecture. Until then, stick with it since we are a
single-threaded process and, truth be told, no one else relies on this
thing besides us.
*/
auto t(std::make_shared<MonitorDBStore::Transaction>());
t->put(Monitor::MONITOR_NAME, "joined", 1);
mon.store->apply_transaction(t);
mon.has_ever_joined = true;
}
if (mon.is_leader()) {
mon.clog->debug() << "monmap " << *mon.monmap;
}
apply_mon_features(mon.get_quorum_mon_features(),
mon.quorum_min_mon_release);
}
bool MonmapMonitor::preprocess_query(MonOpRequestRef op)
{
auto m = op->get_req<PaxosServiceMessage>();
switch (m->get_type()) {
// READs
case MSG_MON_COMMAND:
try {
return preprocess_command(op);
}
catch (const bad_cmd_get& e) {
bufferlist bl;
mon.reply_command(op, -EINVAL, e.what(), bl, get_last_committed());
return true;
}
case MSG_MON_JOIN:
return preprocess_join(op);
default:
ceph_abort();
return true;
}
}
void MonmapMonitor::dump_info(Formatter *f)
{
f->dump_unsigned("monmap_first_committed", get_first_committed());
f->dump_unsigned("monmap_last_committed", get_last_committed());
f->open_object_section("monmap");
mon.monmap->dump(f);
f->close_section();
f->open_array_section("quorum");
for (set<int>::iterator q = mon.get_quorum().begin(); q != mon.get_quorum().end(); ++q)
f->dump_int("mon", *q);
f->close_section();
}
bool MonmapMonitor::preprocess_command(MonOpRequestRef op)
{
auto m = op->get_req<MMonCommand>();
int r = -1;
bufferlist rdata;
stringstream ss;
cmdmap_t cmdmap;
if (!cmdmap_from_json(m->cmd, &cmdmap, ss)) {
string rs = ss.str();
mon.reply_command(op, -EINVAL, rs, rdata, get_last_committed());
return true;
}
string prefix;
cmd_getval(cmdmap, "prefix", prefix);
MonSession *session = op->get_session();
if (!session) {
mon.reply_command(op, -EACCES, "access denied", get_last_committed());
return true;
}
string format = cmd_getval_or<string>(cmdmap, "format", "plain");
boost::scoped_ptr<Formatter> f(Formatter::create(format));
if (prefix == "mon stat") {
if (f) {
f->open_object_section("monmap");
mon.monmap->dump_summary(f.get());
f->dump_string("leader", mon.get_leader_name());
f->open_array_section("quorum");
for (auto rank: mon.get_quorum()) {
std::string name = mon.monmap->get_name(rank);
f->open_object_section("mon");
f->dump_int("rank", rank);
f->dump_string("name", name);
f->close_section(); // mon
}
f->close_section(); // quorum
f->close_section(); // monmap
f->flush(ss);
} else {
mon.monmap->print_summary(ss);
ss << ", election epoch " << mon.get_epoch() << ", leader "
<< mon.get_leader() << " " << mon.get_leader_name()
<< ", quorum " << mon.get_quorum()
<< " " << mon.get_quorum_names();
}
rdata.append(ss);
ss.str("");
r = 0;
} else if (prefix == "mon getmap" ||
prefix == "mon dump") {
epoch_t epoch;
int64_t epochnum = cmd_getval_or<int64_t>(cmdmap, "epoch", 0);
epoch = epochnum;
MonMap *p = mon.monmap;
if (epoch) {
bufferlist bl;
r = get_version(epoch, bl);
if (r == -ENOENT) {
ss << "there is no map for epoch " << epoch;
goto reply;
}
ceph_assert(r == 0);
ceph_assert(bl.length() > 0);
p = new MonMap;
p->decode(bl);
}
ceph_assert(p);
if (prefix == "mon getmap") {
p->encode(rdata, m->get_connection()->get_features());
r = 0;
ss << "got monmap epoch " << p->get_epoch();
} else if (prefix == "mon dump") {
stringstream ds;
if (f) {
f->open_object_section("monmap");
p->dump(f.get());
f->open_array_section("quorum");
for (set<int>::iterator q = mon.get_quorum().begin();
q != mon.get_quorum().end(); ++q) {
f->dump_int("mon", *q);
}
f->close_section();
f->close_section();
f->flush(ds);
r = 0;
} else {
p->print(ds);
r = 0;
}
rdata.append(ds);
ss << "dumped monmap epoch " << p->get_epoch();
}
if (p != mon.monmap) {
delete p;
p = nullptr;
}
} else if (prefix == "mon feature ls") {
bool list_with_value = false;
cmd_getval_compat_cephbool(cmdmap, "with_value", list_with_value);
MonMap *p = mon.monmap;
// list features
mon_feature_t supported = ceph::features::mon::get_supported();
mon_feature_t persistent = ceph::features::mon::get_persistent();
mon_feature_t required = p->get_required_features();
stringstream ds;
auto print_feature = [&](mon_feature_t& m_features, const char* m_str) {
if (f) {
if (list_with_value)
m_features.dump_with_value(f.get(), m_str);
else
m_features.dump(f.get(), m_str);
} else {
if (list_with_value)
m_features.print_with_value(ds);
else
m_features.print(ds);
}
};
if (f) {
f->open_object_section("features");
f->open_object_section("all");
print_feature(supported, "supported");
print_feature(persistent, "persistent");
f->close_section(); // all
f->open_object_section("monmap");
print_feature(p->persistent_features, "persistent");
print_feature(p->optional_features, "optional");
print_feature(required, "required");
f->close_section(); // monmap
f->close_section(); // features
f->flush(ds);
} else {
ds << "all features" << std::endl
<< "\tsupported: ";
print_feature(supported, nullptr);
ds << std::endl
<< "\tpersistent: ";
print_feature(persistent, nullptr);
ds << std::endl
<< std::endl;
ds << "on current monmap (epoch "
<< p->get_epoch() << ")" << std::endl
<< "\tpersistent: ";
print_feature(p->persistent_features, nullptr);
ds << std::endl
// omit optional features in plain-text
// makes it easier to read, and they're, currently, empty.
<< "\trequired: ";
print_feature(required, nullptr);
ds << std::endl;
}
rdata.append(ds);
r = 0;
}
reply:
if (r != -1) {
string rs;
getline(ss, rs);
mon.reply_command(op, r, rs, rdata, get_last_committed());
return true;
} else
return false;
}
bool MonmapMonitor::prepare_update(MonOpRequestRef op)
{
auto m = op->get_req<PaxosServiceMessage>();
dout(7) << __func__ << " " << *m << " from " << m->get_orig_source_inst() << dendl;
switch (m->get_type()) {
case MSG_MON_COMMAND:
try {
return prepare_command(op);
} catch (const bad_cmd_get& e) {
bufferlist bl;
mon.reply_command(op, -EINVAL, e.what(), bl, get_last_committed());
return true;
}
case MSG_MON_JOIN:
return prepare_join(op);
default:
ceph_abort();
}
return false;
}
bool MonmapMonitor::prepare_command(MonOpRequestRef op)
{
auto m = op->get_req<MMonCommand>();
stringstream ss;
string rs;
int err = -EINVAL;
cmdmap_t cmdmap;
if (!cmdmap_from_json(m->cmd, &cmdmap, ss)) {
string rs = ss.str();
mon.reply_command(op, -EINVAL, rs, get_last_committed());
return true;
}
string prefix;
cmd_getval(cmdmap, "prefix", prefix);
MonSession *session = op->get_session();
if (!session) {
mon.reply_command(op, -EACCES, "access denied", get_last_committed());
return true;
}
/* We should follow the following rules:
*
* - 'monmap' is the current, consistent version of the monmap
* - 'pending_map' is the uncommitted version of the monmap
*
* All checks for the current state must be made against 'monmap'.
* All changes are made against 'pending_map'.
*
* If there are concurrent operations modifying 'pending_map', please
* follow the following rules.
*
* - if pending_map has already been changed, the second operation must
* wait for the proposal to finish and be run again; This is the easiest
* path to guarantee correctness but may impact performance (i.e., it
* will take longer for the user to get a reply).
*
* - if the result of the second operation can be guaranteed to be
* idempotent, the operation may reply to the user once the proposal
* finishes; still needs to wait for the proposal to finish.
*
* - An operation _NEVER_ returns to the user based on pending state.
*
* If an operation does not modify current stable monmap, it may be
* serialized before current pending map, regardless of any change that
* has been made to the pending map -- remember, pending is uncommitted
* state, thus we are not bound by it.
*/
ceph_assert(mon.monmap);
MonMap &monmap = *mon.monmap;
/* Please note:
*
* Adding or removing monitors may lead to loss of quorum.
*
* Because quorum may be lost, it's important to reply something
* to the user, lest she end up waiting forever for a reply. And
* no reply will ever be sent until quorum is formed again.
*
* On the other hand, this means we're leaking uncommitted state
* to the user. As such, please be mindful of the reply message.
*
* e.g., 'adding monitor mon.foo' is okay ('adding' is an on-going
* operation and conveys its not-yet-permanent nature); whereas
* 'added monitor mon.foo' presumes the action has successfully
* completed and state has been committed, which may not be true.
*/
bool propose = false;
if (prefix == "mon add") {
string name;
cmd_getval(cmdmap, "name", name);
string addrstr;
cmd_getval(cmdmap, "addr", addrstr);
entity_addr_t addr;
bufferlist rdata;
if (!addr.parse(addrstr)) {
err = -EINVAL;
ss << "addr " << addrstr << "does not parse";
goto reply;
}
vector<string> locationvec;
map<string, string> loc;
cmd_getval(cmdmap, "location", locationvec);
CrushWrapper::parse_loc_map(locationvec, &loc);
if (locationvec.size() &&
!mon.get_quorum_mon_features().contains_all(
ceph::features::mon::FEATURE_PINGING)) {
err = -ENOTSUP;
ss << "Not all monitors support adding monitors with a location; please upgrade first!";
goto reply;
}
if (locationvec.size() && !loc.size()) {
ss << "We could not parse your input location to anything real; " << locationvec
<< " turned into an empty map!";
err = -EINVAL;
goto reply;
}
dout(10) << "mon add setting location for " << name << " to " << loc << dendl;
// TODO: validate location in crush map
if (monmap.stretch_mode_enabled && !loc.size()) {
ss << "We are in stretch mode and new monitors must have a location, but "
<< "could not parse your input location to anything real; " << locationvec
<< " turned into an empty map!";
err = -EINVAL;
goto reply;
}
// TODO: validate location against any existing stretch config
entity_addrvec_t addrs;
if (monmap.persistent_features.contains_all(
ceph::features::mon::FEATURE_NAUTILUS)) {
if (addr.get_port() == CEPH_MON_PORT_IANA) {
addr.set_type(entity_addr_t::TYPE_MSGR2);
}
if (addr.get_port() == CEPH_MON_PORT_LEGACY) {
// if they specified the *old* default they probably don't care
addr.set_port(0);
}
if (addr.get_port()) {
addrs.v.push_back(addr);
} else {
addr.set_type(entity_addr_t::TYPE_MSGR2);
addr.set_port(CEPH_MON_PORT_IANA);
addrs.v.push_back(addr);
addr.set_type(entity_addr_t::TYPE_LEGACY);
addr.set_port(CEPH_MON_PORT_LEGACY);
addrs.v.push_back(addr);
}
} else {
if (addr.get_port() == 0) {
addr.set_port(CEPH_MON_PORT_LEGACY);
}
addr.set_type(entity_addr_t::TYPE_LEGACY);
addrs.v.push_back(addr);
}
dout(20) << __func__ << " addr " << addr << " -> addrs " << addrs << dendl;
/**
* If we have a monitor with the same name and different addr, then EEXIST
* If we have a monitor with the same addr and different name, then EEXIST
* If we have a monitor with the same addr and same name, then wait for
* the proposal to finish and return success.
* If we don't have the monitor, add it.
*/
err = 0;
if (!ss.str().empty())
ss << "; ";
do {
if (monmap.contains(name)) {
if (monmap.get_addrs(name) == addrs) {
// stable map contains monitor with the same name at the same address.
// serialize before current pending map.
err = 0; // for clarity; this has already been set above.
ss << "mon." << name << " at " << addrs << " already exists";
goto reply;
} else {
ss << "mon." << name
<< " already exists at address " << monmap.get_addrs(name);
}
} else if (monmap.contains(addrs)) {
// we established on the previous branch that name is different
ss << "mon." << monmap.get_name(addrs)
<< " already exists at address " << addr;
} else {
// go ahead and add
break;
}
err = -EEXIST;
goto reply;
} while (false);
if (pending_map.stretch_mode_enabled) {
}
/* Given there's no delay between proposals on the MonmapMonitor (see
* MonmapMonitor::should_propose()), there is no point in checking for
* a mismatch between name and addr on pending_map.
*
* Once we established the monitor does not exist in the committed state,
* we can simply go ahead and add the monitor.
*/
pending_map.add(name, addrs);
pending_map.mon_info[name].crush_loc = loc;
pending_map.last_changed = ceph_clock_now();
ss << "adding mon." << name << " at " << addrs;
propose = true;
dout(0) << __func__ << " proposing new mon." << name << dendl;
} else if (prefix == "mon remove" ||
prefix == "mon rm") {
string name;
cmd_getval(cmdmap, "name", name);
if (!monmap.contains(name)) {
err = 0;
ss << "mon." << name << " does not exist or has already been removed";
goto reply;
}
if (monmap.size() == 1) {
err = -EINVAL;
ss << "error: refusing removal of last monitor " << name;
goto reply;
}
/* At the time of writing, there is no risk of races when multiple clients
* attempt to use the same name. The reason is simple but may not be
* obvious.
*
* In a nutshell, we do not collate proposals on the MonmapMonitor. As
* soon as we return 'true' below, PaxosService::dispatch() will check if
* the service should propose, and - if so - the service will be marked as
* 'proposing' and a proposal will be triggered. The PaxosService class
* guarantees that once a service is marked 'proposing' no further writes
* will be handled.
*
* The decision on whether the service should propose or not is, in this
* case, made by MonmapMonitor::should_propose(), which always considers
* the proposal delay being 0.0 seconds. This is key for PaxosService to
* trigger the proposal immediately.
* 0.0 seconds of delay.
*
* From the above, there's no point in performing further checks on the
* pending_map, as we don't ever have multiple proposals in-flight in
* this service. As we've established the committed state contains the
* monitor, we can simply go ahead and remove it.
*
* Please note that the code hinges on all of the above to be true. It
* has been true since time immemorial and we don't see a good reason
* to make it sturdier at this time - mainly because we don't think it's
* going to change any time soon, lest for any bug that may be unwillingly
* introduced.
*/
entity_addrvec_t addrs = pending_map.get_addrs(name);
pending_map.remove(name);
pending_map.last_changed = ceph_clock_now();
ss << "removing mon." << name << " at " << addrs
<< ", there will be " << pending_map.size() << " monitors" ;
propose = true;
err = 0;
} else if (prefix == "mon feature set") {
/* PLEASE NOTE:
*
* We currently only support setting/unsetting persistent features.
* This is by design, given at the moment we still don't have optional
* features, and, as such, there is no point introducing an interface
* to manipulate them. This allows us to provide a cleaner, more
* intuitive interface to the user, modifying solely persistent
* features.
*
* In the future we should consider adding another interface to handle
* optional features/flags; e.g., 'mon feature flag set/unset', or
* 'mon flag set/unset'.
*/
string feature_name;
if (!cmd_getval(cmdmap, "feature_name", feature_name)) {
ss << "missing required feature name";
err = -EINVAL;
goto reply;
}
mon_feature_t feature;
feature = ceph::features::mon::get_feature_by_name(feature_name);
if (feature == ceph::features::mon::FEATURE_NONE) {
ss << "unknown feature '" << feature_name << "'";
err = -ENOENT;
goto reply;
}
bool sure = false;
cmd_getval(cmdmap, "yes_i_really_mean_it", sure);
if (!sure) {
ss << "please specify '--yes-i-really-mean-it' if you "
<< "really, **really** want to set feature '"
<< feature << "' in the monmap.";
err = -EPERM;
goto reply;
}
if (!mon.get_quorum_mon_features().contains_all(feature)) {
ss << "current quorum does not support feature '" << feature
<< "'; supported features: "
<< mon.get_quorum_mon_features();
err = -EINVAL;
goto reply;
}
ss << "setting feature '" << feature << "'";
err = 0;
if (monmap.persistent_features.contains_all(feature)) {
dout(10) << __func__ << " feature '" << feature
<< "' already set on monmap; no-op." << dendl;
goto reply;
}
pending_map.persistent_features.set_feature(feature);
pending_map.last_changed = ceph_clock_now();
propose = true;
dout(1) << __func__ << " " << ss.str() << "; new features will be: "
<< "persistent = " << pending_map.persistent_features
// output optional nevertheless, for auditing purposes.
<< ", optional = " << pending_map.optional_features << dendl;
} else if (prefix == "mon set-rank") {
string name;
int64_t rank;
if (!cmd_getval(cmdmap, "name", name) ||
!cmd_getval(cmdmap, "rank", rank)) {
err = -EINVAL;
goto reply;
}
int oldrank = pending_map.get_rank(name);
if (oldrank < 0) {
ss << "mon." << name << " does not exist in monmap";
err = -ENOENT;
goto reply;
}
err = 0;
pending_map.set_rank(name, rank);
pending_map.last_changed = ceph_clock_now();
propose = true;
} else if (prefix == "mon set-addrs") {
string name;
string addrs;
if (!cmd_getval(cmdmap, "name", name) ||
!cmd_getval(cmdmap, "addrs", addrs)) {
err = -EINVAL;
goto reply;
}
if (!pending_map.contains(name)) {
ss << "mon." << name << " does not exist";
err = -ENOENT;
goto reply;
}
entity_addrvec_t av;
if (!av.parse(addrs.c_str(), nullptr)) {
ss << "failed to parse addrs '" << addrs << "'";
err = -EINVAL;
goto reply;
}
for (auto& a : av.v) {
a.set_nonce(0);
if (!a.get_port()) {
ss << "monitor must bind to a non-zero port, not " << a;
err = -EINVAL;
goto reply;
}
}
err = 0;
pending_map.set_addrvec(name, av);
pending_map.last_changed = ceph_clock_now();
propose = true;
} else if (prefix == "mon set-weight") {
string name;
int64_t weight;
if (!cmd_getval(cmdmap, "name", name) ||
!cmd_getval(cmdmap, "weight", weight)) {
err = -EINVAL;
goto reply;
}
if (!pending_map.contains(name)) {
ss << "mon." << name << " does not exist";
err = -ENOENT;
goto reply;
}
err = 0;
pending_map.set_weight(name, weight);
pending_map.last_changed = ceph_clock_now();
propose = true;
} else if (prefix == "mon enable-msgr2") {
if (!monmap.get_required_features().contains_all(
ceph::features::mon::FEATURE_NAUTILUS)) {
err = -EACCES;
ss << "all monitors must be running nautilus to enable v2";
goto reply;
}
for (auto& i : pending_map.mon_info) {
if (i.second.public_addrs.v.size() == 1 &&
i.second.public_addrs.front().is_legacy() &&
i.second.public_addrs.front().get_port() == CEPH_MON_PORT_LEGACY) {
entity_addrvec_t av;
entity_addr_t a = i.second.public_addrs.front();
a.set_type(entity_addr_t::TYPE_MSGR2);
a.set_port(CEPH_MON_PORT_IANA);
av.v.push_back(a);
av.v.push_back(i.second.public_addrs.front());
dout(10) << " setting mon." << i.first
<< " addrs " << i.second.public_addrs
<< " -> " << av << dendl;
pending_map.set_addrvec(i.first, av);
propose = true;
pending_map.last_changed = ceph_clock_now();
}
}
err = 0;
} else if (prefix == "mon set election_strategy") {
if (!mon.get_quorum_mon_features().contains_all(
ceph::features::mon::FEATURE_PINGING)) {
err = -ENOTSUP;
ss << "Not all monitors support changing election strategies; please upgrade first!";
goto reply;
}
string strat;
MonMap::election_strategy strategy;
if (!cmd_getval(cmdmap, "strategy", strat)) {
err = -EINVAL;
goto reply;
}
if (strat == "classic") {
strategy = MonMap::CLASSIC;
} else if (strat == "disallow") {
strategy = MonMap::DISALLOW;
} else if (strat == "connectivity") {
strategy = MonMap::CONNECTIVITY;
} else {
err = -EINVAL;
goto reply;
}
err = 0;
pending_map.strategy = strategy;
propose = true;
} else if (prefix == "mon add disallowed_leader") {
if (!mon.get_quorum_mon_features().contains_all(
ceph::features::mon::FEATURE_PINGING)) {
err = -ENOTSUP;
ss << "Not all monitors support changing election strategies; please upgrade first!";
goto reply;
}
string name;
if (!cmd_getval(cmdmap, "name", name)) {
err = -EINVAL;
goto reply;
}
if (pending_map.strategy != MonMap::DISALLOW &&
pending_map.strategy != MonMap::CONNECTIVITY) {
ss << "You cannot disallow monitors in your current election mode";
err = -EINVAL;
goto reply;
}
if (!pending_map.contains(name)) {
ss << "mon." << name << " does not exist";
err = -ENOENT;
goto reply;
}
if (pending_map.disallowed_leaders.count(name)) {
ss << "mon." << name << " is already disallowed";
err = 0;
goto reply;
}
if (pending_map.disallowed_leaders.size() == pending_map.size() - 1) {
ss << "mon." << name << " is the only remaining allowed leader!";
err = -EINVAL;
goto reply;
}
pending_map.disallowed_leaders.insert(name);
err = 0;
propose = true;
} else if (prefix == "mon rm disallowed_leader") {
if (!mon.get_quorum_mon_features().contains_all(
ceph::features::mon::FEATURE_PINGING)) {
err = -ENOTSUP;
ss << "Not all monitors support changing election strategies; please upgrade first!";
goto reply;
}
string name;
if (!cmd_getval(cmdmap, "name", name)) {
err = -EINVAL;
goto reply;
}
if (pending_map.strategy != MonMap::DISALLOW &&
pending_map.strategy != MonMap::CONNECTIVITY) {
ss << "You cannot disallow monitors in your current election mode";
err = -EINVAL;
goto reply;
}
if (!pending_map.contains(name)) {
ss << "mon." << name << " does not exist";
err = -ENOENT;
goto reply;
}
if (!pending_map.disallowed_leaders.count(name)) {
ss << "mon." << name << " is already allowed";
err = 0;
goto reply;