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Monitor.cc
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Monitor.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) 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.
*
*/
#include <iterator>
#include <sstream>
#include <tuple>
#include <stdlib.h>
#include <signal.h>
#include <limits.h>
#include <cstring>
#include <boost/scope_exit.hpp>
#include <boost/algorithm/string/predicate.hpp>
#include "json_spirit/json_spirit_reader.h"
#include "json_spirit/json_spirit_writer.h"
#include "Monitor.h"
#include "common/version.h"
#include "common/blkdev.h"
#include "common/cmdparse.h"
#include "common/signal.h"
#include "osd/OSDMap.h"
#include "MonitorDBStore.h"
#include "messages/PaxosServiceMessage.h"
#include "messages/MMonMap.h"
#include "messages/MMonGetMap.h"
#include "messages/MMonGetVersion.h"
#include "messages/MMonGetVersionReply.h"
#include "messages/MGenericMessage.h"
#include "messages/MMonCommand.h"
#include "messages/MMonCommandAck.h"
#include "messages/MMonSync.h"
#include "messages/MMonScrub.h"
#include "messages/MMonProbe.h"
#include "messages/MMonJoin.h"
#include "messages/MMonPaxos.h"
#include "messages/MRoute.h"
#include "messages/MForward.h"
#include "messages/MMonSubscribe.h"
#include "messages/MMonSubscribeAck.h"
#include "messages/MCommand.h"
#include "messages/MCommandReply.h"
#include "messages/MTimeCheck2.h"
#include "messages/MPing.h"
#include "common/strtol.h"
#include "common/ceph_argparse.h"
#include "common/Timer.h"
#include "common/Clock.h"
#include "common/errno.h"
#include "common/perf_counters.h"
#include "common/admin_socket.h"
#include "global/signal_handler.h"
#include "common/Formatter.h"
#include "include/stringify.h"
#include "include/color.h"
#include "include/ceph_fs.h"
#include "include/str_list.h"
#include "OSDMonitor.h"
#include "MDSMonitor.h"
#include "MonmapMonitor.h"
#include "LogMonitor.h"
#include "AuthMonitor.h"
#include "MgrMonitor.h"
#include "MgrStatMonitor.h"
#include "ConfigMonitor.h"
#include "KVMonitor.h"
#include "mon/HealthMonitor.h"
#include "common/config.h"
#include "common/cmdparse.h"
#include "include/ceph_assert.h"
#include "include/compat.h"
#include "perfglue/heap_profiler.h"
#include "auth/none/AuthNoneClientHandler.h"
#define dout_subsys ceph_subsys_mon
#undef dout_prefix
#define dout_prefix _prefix(_dout, this)
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::ErasureCodeInterfaceRef;
using ceph::ErasureCodeProfile;
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, const Monitor *mon) {
return *_dout << "mon." << mon->name << "@" << mon->rank
<< "(" << mon->get_state_name() << ") e" << mon->monmap->get_epoch() << " ";
}
const string Monitor::MONITOR_NAME = "monitor";
const string Monitor::MONITOR_STORE_PREFIX = "monitor_store";
#undef FLAG
#undef COMMAND
#undef COMMAND_WITH_FLAG
#define FLAG(f) (MonCommand::FLAG_##f)
#define COMMAND(parsesig, helptext, modulename, req_perms) \
{parsesig, helptext, modulename, req_perms, FLAG(NONE)},
#define COMMAND_WITH_FLAG(parsesig, helptext, modulename, req_perms, flags) \
{parsesig, helptext, modulename, req_perms, flags},
MonCommand mon_commands[] = {
#include <mon/MonCommands.h>
};
#undef COMMAND
#undef COMMAND_WITH_FLAG
Monitor::Monitor(CephContext* cct_, string nm, MonitorDBStore *s,
Messenger *m, Messenger *mgr_m, MonMap *map) :
Dispatcher(cct_),
AuthServer(cct_),
name(nm),
rank(-1),
messenger(m),
con_self(m ? m->get_loopback_connection() : NULL),
timer(cct_, lock),
finisher(cct_, "mon_finisher", "fin"),
cpu_tp(cct, "Monitor::cpu_tp", "cpu_tp", g_conf()->mon_cpu_threads),
has_ever_joined(false),
logger(NULL), cluster_logger(NULL), cluster_logger_registered(false),
monmap(map),
log_client(cct_, messenger, monmap, LogClient::FLAG_MON),
key_server(cct, &keyring),
auth_cluster_required(cct,
cct->_conf->auth_supported.empty() ?
cct->_conf->auth_cluster_required : cct->_conf->auth_supported),
auth_service_required(cct,
cct->_conf->auth_supported.empty() ?
cct->_conf->auth_service_required : cct->_conf->auth_supported),
mgr_messenger(mgr_m),
mgr_client(cct_, mgr_m, monmap),
gss_ktfile_client(cct->_conf.get_val<std::string>("gss_ktab_client_file")),
store(s),
elector(this, map->strategy),
required_features(0),
leader(0),
quorum_con_features(0),
// scrub
scrub_version(0),
scrub_event(NULL),
scrub_timeout_event(NULL),
// sync state
sync_provider_count(0),
sync_cookie(0),
sync_full(false),
sync_start_version(0),
sync_timeout_event(NULL),
sync_last_committed_floor(0),
timecheck_round(0),
timecheck_acks(0),
timecheck_rounds_since_clean(0),
timecheck_event(NULL),
admin_hook(NULL),
routed_request_tid(0),
op_tracker(cct, g_conf().get_val<bool>("mon_enable_op_tracker"), 1)
{
clog = log_client.create_channel(CLOG_CHANNEL_CLUSTER);
audit_clog = log_client.create_channel(CLOG_CHANNEL_AUDIT);
update_log_clients();
if (!gss_ktfile_client.empty()) {
// Assert we can export environment variable
/*
The default client keytab is used, if it is present and readable,
to automatically obtain initial credentials for GSSAPI client
applications. The principal name of the first entry in the client
keytab is used by default when obtaining initial credentials.
1. The KRB5_CLIENT_KTNAME environment variable.
2. The default_client_keytab_name profile variable in [libdefaults].
3. The hardcoded default, DEFCKTNAME.
*/
const int32_t set_result(setenv("KRB5_CLIENT_KTNAME",
gss_ktfile_client.c_str(), 1));
ceph_assert(set_result == 0);
}
op_tracker.set_complaint_and_threshold(
g_conf().get_val<std::chrono::seconds>("mon_op_complaint_time").count(),
g_conf().get_val<int64_t>("mon_op_log_threshold"));
op_tracker.set_history_size_and_duration(
g_conf().get_val<uint64_t>("mon_op_history_size"),
g_conf().get_val<std::chrono::seconds>("mon_op_history_duration").count());
op_tracker.set_history_slow_op_size_and_threshold(
g_conf().get_val<uint64_t>("mon_op_history_slow_op_size"),
g_conf().get_val<std::chrono::seconds>("mon_op_history_slow_op_threshold").count());
paxos = std::make_unique<Paxos>(*this, "paxos");
paxos_service[PAXOS_MDSMAP].reset(new MDSMonitor(*this, *paxos, "mdsmap"));
paxos_service[PAXOS_MONMAP].reset(new MonmapMonitor(*this, *paxos, "monmap"));
paxos_service[PAXOS_OSDMAP].reset(new OSDMonitor(cct, *this, *paxos, "osdmap"));
paxos_service[PAXOS_LOG].reset(new LogMonitor(*this, *paxos, "logm"));
paxos_service[PAXOS_AUTH].reset(new AuthMonitor(*this, *paxos, "auth"));
paxos_service[PAXOS_MGR].reset(new MgrMonitor(*this, *paxos, "mgr"));
paxos_service[PAXOS_MGRSTAT].reset(new MgrStatMonitor(*this, *paxos, "mgrstat"));
paxos_service[PAXOS_HEALTH].reset(new HealthMonitor(*this, *paxos, "health"));
paxos_service[PAXOS_CONFIG].reset(new ConfigMonitor(*this, *paxos, "config"));
paxos_service[PAXOS_KV].reset(new KVMonitor(*this, *paxos, "kv"));
bool r = mon_caps.parse("allow *", NULL);
ceph_assert(r);
exited_quorum = ceph_clock_now();
// prepare local commands
local_mon_commands.resize(std::size(mon_commands));
for (unsigned i = 0; i < std::size(mon_commands); ++i) {
local_mon_commands[i] = mon_commands[i];
}
MonCommand::encode_vector(local_mon_commands, local_mon_commands_bl);
prenautilus_local_mon_commands = local_mon_commands;
for (auto& i : prenautilus_local_mon_commands) {
std::string n = cmddesc_get_prenautilus_compat(i.cmdstring);
if (n != i.cmdstring) {
dout(20) << " pre-nautilus cmd " << i.cmdstring << " -> " << n << dendl;
i.cmdstring = n;
}
}
MonCommand::encode_vector(prenautilus_local_mon_commands, prenautilus_local_mon_commands_bl);
// assume our commands until we have an election. this only means
// we won't reply with EINVAL before the election; any command that
// actually matters will wait until we have quorum etc and then
// retry (and revalidate).
leader_mon_commands = local_mon_commands;
}
Monitor::~Monitor()
{
op_tracker.on_shutdown();
delete logger;
ceph_assert(session_map.sessions.empty());
}
class AdminHook : public AdminSocketHook {
Monitor *mon;
public:
explicit AdminHook(Monitor *m) : mon(m) {}
int call(std::string_view command, const cmdmap_t& cmdmap,
Formatter *f,
std::ostream& errss,
bufferlist& out) override {
stringstream outss;
int r = mon->do_admin_command(command, cmdmap, f, errss, outss);
out.append(outss);
return r;
}
};
int Monitor::do_admin_command(
std::string_view command,
const cmdmap_t& cmdmap,
Formatter *f,
std::ostream& err,
std::ostream& out)
{
std::lock_guard l(lock);
int r = 0;
string args;
for (auto p = cmdmap.begin();
p != cmdmap.end(); ++p) {
if (p->first == "prefix")
continue;
if (!args.empty())
args += ", ";
args += cmd_vartype_stringify(p->second);
}
args = "[" + args + "]";
bool read_only = (command == "mon_status" ||
command == "mon metadata" ||
command == "quorum_status" ||
command == "ops" ||
command == "sessions");
(read_only ? audit_clog->debug() : audit_clog->info())
<< "from='admin socket' entity='admin socket' "
<< "cmd='" << command << "' args=" << args << ": dispatch";
if (command == "mon_status") {
get_mon_status(f);
} else if (command == "quorum_status") {
_quorum_status(f, out);
} else if (command == "sync_force") {
string validate;
if ((!cmd_getval(cmdmap, "validate", validate)) ||
(validate != "--yes-i-really-mean-it")) {
err << "are you SURE? this will mean the monitor store will be erased "
"the next time the monitor is restarted. pass "
"'--yes-i-really-mean-it' if you really do.";
r = -EPERM;
goto abort;
}
sync_force(f);
} else if (command.compare(0, 23, "add_bootstrap_peer_hint") == 0 ||
command.compare(0, 24, "add_bootstrap_peer_hintv") == 0) {
if (!_add_bootstrap_peer_hint(command, cmdmap, out))
goto abort;
} else if (command == "quorum enter") {
elector.start_participating();
start_election();
out << "started responding to quorum, initiated new election";
} else if (command == "quorum exit") {
start_election();
elector.stop_participating();
out << "stopped responding to quorum, initiated new election";
} else if (command == "ops") {
(void)op_tracker.dump_ops_in_flight(f);
} else if (command == "sessions") {
f->open_array_section("sessions");
for (auto p : session_map.sessions) {
f->dump_object("session", *p);
}
f->close_section();
} else if (command == "dump_historic_ops") {
if (!op_tracker.dump_historic_ops(f)) {
err << "op_tracker tracking is not enabled now, so no ops are tracked currently, even those get stuck. \
please enable \"mon_enable_op_tracker\", and the tracker will start to track new ops received afterwards.";
}
} else if (command == "dump_historic_ops_by_duration" ) {
if (op_tracker.dump_historic_ops(f, true)) {
err << "op_tracker tracking is not enabled now, so no ops are tracked currently, even those get stuck. \
please enable \"mon_enable_op_tracker\", and the tracker will start to track new ops received afterwards.";
}
} else if (command == "dump_historic_slow_ops") {
if (op_tracker.dump_historic_slow_ops(f, {})) {
err << "op_tracker tracking is not enabled now, so no ops are tracked currently, even those get stuck. \
please enable \"mon_enable_op_tracker\", and the tracker will start to track new ops received afterwards.";
}
} else if (command == "quorum") {
string quorumcmd;
cmd_getval(cmdmap, "quorumcmd", quorumcmd);
if (quorumcmd == "exit") {
start_election();
elector.stop_participating();
out << "stopped responding to quorum, initiated new election" << std::endl;
} else if (quorumcmd == "enter") {
elector.start_participating();
start_election();
out << "started responding to quorum, initiated new election" << std::endl;
} else {
err << "needs a valid 'quorum' command" << std::endl;
}
} else if (command == "connection scores dump") {
if (!get_quorum_mon_features().contains_all(
ceph::features::mon::FEATURE_PINGING)) {
err << "Not all monitors support changing election strategies; \
please upgrade them first!";
}
elector.dump_connection_scores(f);
} else if (command == "connection scores reset") {
if (!get_quorum_mon_features().contains_all(
ceph::features::mon::FEATURE_PINGING)) {
err << "Not all monitors support changing election strategies; \
please upgrade them first!";
}
elector.notify_clear_peer_state();
} else if (command == "smart") {
string want_devid;
cmd_getval(cmdmap, "devid", want_devid);
string devname = store->get_devname();
set<string> devnames;
get_raw_devices(devname, &devnames);
json_spirit::mObject json_map;
uint64_t smart_timeout = cct->_conf.get_val<uint64_t>(
"mon_smart_report_timeout");
for (auto& devname : devnames) {
string err;
string devid = get_device_id(devname, &err);
if (want_devid.size() && want_devid != devid) {
derr << "get_device_id failed on " << devname << ": " << err << dendl;
continue;
}
json_spirit::mValue smart_json;
if (block_device_get_metrics(devname, smart_timeout,
&smart_json)) {
dout(10) << "block_device_get_metrics failed for /dev/" << devname
<< dendl;
continue;
}
json_map[devid] = smart_json;
}
json_spirit::write(json_map, out, json_spirit::pretty_print);
} else if (command == "heap") {
if (!ceph_using_tcmalloc()) {
err << "could not issue heap profiler command -- not using tcmalloc!";
r = -EOPNOTSUPP;
goto abort;
}
string cmd;
if (!cmd_getval(cmdmap, "heapcmd", cmd)) {
err << "unable to get value for command \"" << cmd << "\"";
r = -EINVAL;
goto abort;
}
std::vector<std::string> cmd_vec;
get_str_vec(cmd, cmd_vec);
string val;
if (cmd_getval(cmdmap, "value", val)) {
cmd_vec.push_back(val);
}
ceph_heap_profiler_handle_command(cmd_vec, out);
} else if (command == "compact") {
dout(1) << "triggering manual compaction" << dendl;
auto start = ceph::coarse_mono_clock::now();
store->compact_async();
auto end = ceph::coarse_mono_clock::now();
auto duration = ceph::to_seconds<double>(end - start);
dout(1) << "finished manual compaction in "
<< duration << " seconds" << dendl;
out << "compacted " << g_conf().get_val<std::string>("mon_keyvaluedb")
<< " in " << duration << " seconds";
} else {
ceph_abort_msg("bad AdminSocket command binding");
}
(read_only ? audit_clog->debug() : audit_clog->info())
<< "from='admin socket' "
<< "entity='admin socket' "
<< "cmd=" << command << " "
<< "args=" << args << ": finished";
return r;
abort:
(read_only ? audit_clog->debug() : audit_clog->info())
<< "from='admin socket' "
<< "entity='admin socket' "
<< "cmd=" << command << " "
<< "args=" << args << ": aborted";
return r;
}
void Monitor::handle_signal(int signum)
{
ceph_assert(signum == SIGINT || signum == SIGTERM);
derr << "*** Got Signal " << sig_str(signum) << " ***" << dendl;
shutdown();
}
CompatSet Monitor::get_initial_supported_features()
{
CompatSet::FeatureSet ceph_mon_feature_compat;
CompatSet::FeatureSet ceph_mon_feature_ro_compat;
CompatSet::FeatureSet ceph_mon_feature_incompat;
ceph_mon_feature_incompat.insert(CEPH_MON_FEATURE_INCOMPAT_BASE);
ceph_mon_feature_incompat.insert(CEPH_MON_FEATURE_INCOMPAT_SINGLE_PAXOS);
return CompatSet(ceph_mon_feature_compat, ceph_mon_feature_ro_compat,
ceph_mon_feature_incompat);
}
CompatSet Monitor::get_supported_features()
{
CompatSet compat = get_initial_supported_features();
compat.incompat.insert(CEPH_MON_FEATURE_INCOMPAT_OSD_ERASURE_CODES);
compat.incompat.insert(CEPH_MON_FEATURE_INCOMPAT_OSDMAP_ENC);
compat.incompat.insert(CEPH_MON_FEATURE_INCOMPAT_ERASURE_CODE_PLUGINS_V2);
compat.incompat.insert(CEPH_MON_FEATURE_INCOMPAT_ERASURE_CODE_PLUGINS_V3);
compat.incompat.insert(CEPH_MON_FEATURE_INCOMPAT_KRAKEN);
compat.incompat.insert(CEPH_MON_FEATURE_INCOMPAT_LUMINOUS);
compat.incompat.insert(CEPH_MON_FEATURE_INCOMPAT_MIMIC);
compat.incompat.insert(CEPH_MON_FEATURE_INCOMPAT_NAUTILUS);
compat.incompat.insert(CEPH_MON_FEATURE_INCOMPAT_OCTOPUS);
compat.incompat.insert(CEPH_MON_FEATURE_INCOMPAT_PACIFIC);
compat.incompat.insert(CEPH_MON_FEATURE_INCOMPAT_QUINCY);
return compat;
}
CompatSet Monitor::get_legacy_features()
{
CompatSet::FeatureSet ceph_mon_feature_compat;
CompatSet::FeatureSet ceph_mon_feature_ro_compat;
CompatSet::FeatureSet ceph_mon_feature_incompat;
ceph_mon_feature_incompat.insert(CEPH_MON_FEATURE_INCOMPAT_BASE);
return CompatSet(ceph_mon_feature_compat, ceph_mon_feature_ro_compat,
ceph_mon_feature_incompat);
}
int Monitor::check_features(MonitorDBStore *store)
{
CompatSet required = get_supported_features();
CompatSet ondisk;
read_features_off_disk(store, &ondisk);
if (!required.writeable(ondisk)) {
CompatSet diff = required.unsupported(ondisk);
generic_derr << "ERROR: on disk data includes unsupported features: " << diff << dendl;
return -EPERM;
}
return 0;
}
void Monitor::read_features_off_disk(MonitorDBStore *store, CompatSet *features)
{
bufferlist featuresbl;
store->get(MONITOR_NAME, COMPAT_SET_LOC, featuresbl);
if (featuresbl.length() == 0) {
generic_dout(0) << "WARNING: mon fs missing feature list.\n"
<< "Assuming it is old-style and introducing one." << dendl;
//we only want the baseline ~v.18 features assumed to be on disk.
//If new features are introduced this code needs to disappear or
//be made smarter.
*features = get_legacy_features();
features->encode(featuresbl);
auto t(std::make_shared<MonitorDBStore::Transaction>());
t->put(MONITOR_NAME, COMPAT_SET_LOC, featuresbl);
store->apply_transaction(t);
} else {
auto it = featuresbl.cbegin();
features->decode(it);
}
}
void Monitor::read_features()
{
read_features_off_disk(store, &features);
dout(10) << "features " << features << dendl;
calc_quorum_requirements();
dout(10) << "required_features " << required_features << dendl;
}
void Monitor::write_features(MonitorDBStore::TransactionRef t)
{
bufferlist bl;
features.encode(bl);
t->put(MONITOR_NAME, COMPAT_SET_LOC, bl);
}
const char** Monitor::get_tracked_conf_keys() const
{
static const char* KEYS[] = {
"crushtool", // helpful for testing
"mon_election_timeout",
"mon_lease",
"mon_lease_renew_interval_factor",
"mon_lease_ack_timeout_factor",
"mon_accept_timeout_factor",
// clog & admin clog
"clog_to_monitors",
"clog_to_syslog",
"clog_to_syslog_facility",
"clog_to_syslog_level",
"clog_to_graylog",
"clog_to_graylog_host",
"clog_to_graylog_port",
"host",
"fsid",
// periodic health to clog
"mon_health_to_clog",
"mon_health_to_clog_interval",
"mon_health_to_clog_tick_interval",
// scrub interval
"mon_scrub_interval",
"mon_allow_pool_delete",
// osdmap pruning - observed, not handled.
"mon_osdmap_full_prune_enabled",
"mon_osdmap_full_prune_min",
"mon_osdmap_full_prune_interval",
"mon_osdmap_full_prune_txsize",
// debug options - observed, not handled
"mon_debug_extra_checks",
"mon_debug_block_osdmap_trim",
NULL
};
return KEYS;
}
void Monitor::handle_conf_change(const ConfigProxy& conf,
const std::set<std::string> &changed)
{
sanitize_options();
dout(10) << __func__ << " " << changed << dendl;
if (changed.count("clog_to_monitors") ||
changed.count("clog_to_syslog") ||
changed.count("clog_to_syslog_level") ||
changed.count("clog_to_syslog_facility") ||
changed.count("clog_to_graylog") ||
changed.count("clog_to_graylog_host") ||
changed.count("clog_to_graylog_port") ||
changed.count("host") ||
changed.count("fsid")) {
update_log_clients();
}
if (changed.count("mon_health_to_clog") ||
changed.count("mon_health_to_clog_interval") ||
changed.count("mon_health_to_clog_tick_interval")) {
finisher.queue(new C_MonContext{this, [this, changed](int) {
std::lock_guard l{lock};
health_to_clog_update_conf(changed);
}});
}
if (changed.count("mon_scrub_interval")) {
auto scrub_interval =
conf.get_val<std::chrono::seconds>("mon_scrub_interval");
finisher.queue(new C_MonContext{this, [this, scrub_interval](int) {
std::lock_guard l{lock};
scrub_update_interval(scrub_interval);
}});
}
}
void Monitor::update_log_clients()
{
map<string,string> log_to_monitors;
map<string,string> log_to_syslog;
map<string,string> log_channel;
map<string,string> log_prio;
map<string,string> log_to_graylog;
map<string,string> log_to_graylog_host;
map<string,string> log_to_graylog_port;
uuid_d fsid;
string host;
if (parse_log_client_options(g_ceph_context, log_to_monitors, log_to_syslog,
log_channel, log_prio, log_to_graylog,
log_to_graylog_host, log_to_graylog_port,
fsid, host))
return;
clog->update_config(log_to_monitors, log_to_syslog,
log_channel, log_prio, log_to_graylog,
log_to_graylog_host, log_to_graylog_port,
fsid, host);
audit_clog->update_config(log_to_monitors, log_to_syslog,
log_channel, log_prio, log_to_graylog,
log_to_graylog_host, log_to_graylog_port,
fsid, host);
}
int Monitor::sanitize_options()
{
int r = 0;
// mon_lease must be greater than mon_lease_renewal; otherwise we
// may incur in leases expiring before they are renewed.
if (g_conf()->mon_lease_renew_interval_factor >= 1.0) {
clog->error() << "mon_lease_renew_interval_factor ("
<< g_conf()->mon_lease_renew_interval_factor
<< ") must be less than 1.0";
r = -EINVAL;
}
// mon_lease_ack_timeout must be greater than mon_lease to make sure we've
// got time to renew the lease and get an ack for it. Having both options
// with the same value, for a given small vale, could mean timing out if
// the monitors happened to be overloaded -- or even under normal load for
// a small enough value.
if (g_conf()->mon_lease_ack_timeout_factor <= 1.0) {
clog->error() << "mon_lease_ack_timeout_factor ("
<< g_conf()->mon_lease_ack_timeout_factor
<< ") must be greater than 1.0";
r = -EINVAL;
}
return r;
}
int Monitor::preinit()
{
std::unique_lock l(lock);
dout(1) << "preinit fsid " << monmap->fsid << dendl;
int r = sanitize_options();
if (r < 0) {
derr << "option sanitization failed!" << dendl;
return r;
}
ceph_assert(!logger);
{
PerfCountersBuilder pcb(g_ceph_context, "mon", l_mon_first, l_mon_last);
pcb.add_u64(l_mon_num_sessions, "num_sessions", "Open sessions", "sess",
PerfCountersBuilder::PRIO_USEFUL);
pcb.add_u64_counter(l_mon_session_add, "session_add", "Created sessions",
"sadd", PerfCountersBuilder::PRIO_INTERESTING);
pcb.add_u64_counter(l_mon_session_rm, "session_rm", "Removed sessions",
"srm", PerfCountersBuilder::PRIO_INTERESTING);
pcb.add_u64_counter(l_mon_session_trim, "session_trim", "Trimmed sessions",
"strm", PerfCountersBuilder::PRIO_USEFUL);
pcb.add_u64_counter(l_mon_num_elections, "num_elections", "Elections participated in",
"ecnt", PerfCountersBuilder::PRIO_USEFUL);
pcb.add_u64_counter(l_mon_election_call, "election_call", "Elections started",
"estt", PerfCountersBuilder::PRIO_INTERESTING);
pcb.add_u64_counter(l_mon_election_win, "election_win", "Elections won",
"ewon", PerfCountersBuilder::PRIO_INTERESTING);
pcb.add_u64_counter(l_mon_election_lose, "election_lose", "Elections lost",
"elst", PerfCountersBuilder::PRIO_INTERESTING);
logger = pcb.create_perf_counters();
cct->get_perfcounters_collection()->add(logger);
}
ceph_assert(!cluster_logger);
{
PerfCountersBuilder pcb(g_ceph_context, "cluster", l_cluster_first, l_cluster_last);
pcb.add_u64(l_cluster_num_mon, "num_mon", "Monitors");
pcb.add_u64(l_cluster_num_mon_quorum, "num_mon_quorum", "Monitors in quorum");
pcb.add_u64(l_cluster_num_osd, "num_osd", "OSDs");
pcb.add_u64(l_cluster_num_osd_up, "num_osd_up", "OSDs that are up");
pcb.add_u64(l_cluster_num_osd_in, "num_osd_in", "OSD in state \"in\" (they are in cluster)");
pcb.add_u64(l_cluster_osd_epoch, "osd_epoch", "Current epoch of OSD map");
pcb.add_u64(l_cluster_osd_bytes, "osd_bytes", "Total capacity of cluster", NULL, 0, unit_t(UNIT_BYTES));
pcb.add_u64(l_cluster_osd_bytes_used, "osd_bytes_used", "Used space", NULL, 0, unit_t(UNIT_BYTES));
pcb.add_u64(l_cluster_osd_bytes_avail, "osd_bytes_avail", "Available space", NULL, 0, unit_t(UNIT_BYTES));
pcb.add_u64(l_cluster_num_pool, "num_pool", "Pools");
pcb.add_u64(l_cluster_num_pg, "num_pg", "Placement groups");
pcb.add_u64(l_cluster_num_pg_active_clean, "num_pg_active_clean", "Placement groups in active+clean state");
pcb.add_u64(l_cluster_num_pg_active, "num_pg_active", "Placement groups in active state");
pcb.add_u64(l_cluster_num_pg_peering, "num_pg_peering", "Placement groups in peering state");
pcb.add_u64(l_cluster_num_object, "num_object", "Objects");
pcb.add_u64(l_cluster_num_object_degraded, "num_object_degraded", "Degraded (missing replicas) objects");
pcb.add_u64(l_cluster_num_object_misplaced, "num_object_misplaced", "Misplaced (wrong location in the cluster) objects");
pcb.add_u64(l_cluster_num_object_unfound, "num_object_unfound", "Unfound objects");
pcb.add_u64(l_cluster_num_bytes, "num_bytes", "Size of all objects", NULL, 0, unit_t(UNIT_BYTES));
cluster_logger = pcb.create_perf_counters();
}
paxos->init_logger();
// verify cluster_uuid
{
int r = check_fsid();
if (r == -ENOENT)
r = write_fsid();
if (r < 0) {
return r;
}
}
// open compatset
read_features();
// have we ever joined a quorum?
has_ever_joined = (store->get(MONITOR_NAME, "joined") != 0);
dout(10) << "has_ever_joined = " << (int)has_ever_joined << dendl;
if (!has_ever_joined) {
// impose initial quorum restrictions?
list<string> initial_members;
get_str_list(g_conf()->mon_initial_members, initial_members);
if (!initial_members.empty()) {
dout(1) << " initial_members " << initial_members << ", filtering seed monmap" << dendl;
monmap->set_initial_members(
g_ceph_context, initial_members, name, messenger->get_myaddrs(),
&extra_probe_peers);
dout(10) << " monmap is " << *monmap << dendl;
dout(10) << " extra probe peers " << extra_probe_peers << dendl;
}
} else if (!monmap->contains(name)) {
derr << "not in monmap and have been in a quorum before; "
<< "must have been removed" << dendl;
if (g_conf()->mon_force_quorum_join) {
dout(0) << "we should have died but "
<< "'mon_force_quorum_join' is set -- allowing boot" << dendl;
} else {
derr << "commit suicide!" << dendl;
return -ENOENT;
}
}
{
// We have a potentially inconsistent store state in hands. Get rid of it
// and start fresh.
bool clear_store = false;
if (store->exists("mon_sync", "in_sync")) {
dout(1) << __func__ << " clean up potentially inconsistent store state"
<< dendl;
clear_store = true;
}
if (store->get("mon_sync", "force_sync") > 0) {
dout(1) << __func__ << " force sync by clearing store state" << dendl;
clear_store = true;
}
if (clear_store) {
set<string> sync_prefixes = get_sync_targets_names();
store->clear(sync_prefixes);
}
}
sync_last_committed_floor = store->get("mon_sync", "last_committed_floor");
dout(10) << "sync_last_committed_floor " << sync_last_committed_floor << dendl;
init_paxos();
if (is_keyring_required()) {
// we need to bootstrap authentication keys so we can form an
// initial quorum.
if (authmon()->get_last_committed() == 0) {
dout(10) << "loading initial keyring to bootstrap authentication for mkfs" << dendl;
bufferlist bl;
int err = store->get("mkfs", "keyring", bl);
if (err == 0 && bl.length() > 0) {
// Attempt to decode and extract keyring only if it is found.
KeyRing keyring;
auto p = bl.cbegin();
decode(keyring, p);
extract_save_mon_key(keyring);
}
}
string keyring_loc = g_conf()->mon_data + "/keyring";
r = keyring.load(cct, keyring_loc);
if (r < 0) {
EntityName mon_name;
mon_name.set_type(CEPH_ENTITY_TYPE_MON);
EntityAuth mon_key;
if (key_server.get_auth(mon_name, mon_key)) {
dout(1) << "copying mon. key from old db to external keyring" << dendl;
keyring.add(mon_name, mon_key);
bufferlist bl;
keyring.encode_plaintext(bl);
write_default_keyring(bl);
} else {
derr << "unable to load initial keyring " << g_conf()->keyring << dendl;
return r;
}
}
}
admin_hook = new AdminHook(this);
AdminSocket* admin_socket = cct->get_admin_socket();
// unlock while registering to avoid mon_lock -> admin socket lock dependency.
l.unlock();
// register tell/asock commands
for (const auto& command : local_mon_commands) {
if (!command.is_tell()) {
continue;
}
const auto prefix = cmddesc_get_prefix(command.cmdstring);
if (prefix == "injectargs" ||
prefix == "version" ||
prefix == "tell") {
// not registerd by me
continue;
}
r = admin_socket->register_command(command.cmdstring, admin_hook,
command.helpstring);
ceph_assert(r == 0);
}
l.lock();
// add ourselves as a conf observer
g_conf().add_observer(this);
messenger->set_auth_client(this);
messenger->set_auth_server(this);
mgr_messenger->set_auth_client(this);
auth_registry.refresh_config();
return 0;
}
int Monitor::init()
{
dout(2) << "init" << dendl;
std::lock_guard l(lock);
finisher.start();
// start ticker
timer.init();
new_tick();
cpu_tp.start();
// i'm ready!
messenger->add_dispatcher_tail(this);
// kickstart pet mgrclient
mgr_client.init();
mgr_messenger->add_dispatcher_tail(&mgr_client);
mgr_messenger->add_dispatcher_tail(this); // for auth ms_* calls
mgrmon()->prime_mgr_client();
state = STATE_PROBING;
bootstrap();
// add features of myself into feature_map
session_map.feature_map.add_mon(con_self->get_features());
return 0;
}
void Monitor::init_paxos()
{
dout(10) << __func__ << dendl;
paxos->init();
// init services
for (auto& svc : paxos_service) {
svc->init();
}
refresh_from_paxos(NULL);
}
void Monitor::refresh_from_paxos(bool *need_bootstrap)
{
dout(10) << __func__ << dendl;
bufferlist bl;
int r = store->get(MONITOR_NAME, "cluster_fingerprint", bl);
if (r >= 0) {
try {
auto p = bl.cbegin();
decode(fingerprint, p);
}
catch (ceph::buffer::error& e) {
dout(10) << __func__ << " failed to decode cluster_fingerprint" << dendl;
}
} else {
dout(10) << __func__ << " no cluster_fingerprint" << dendl;
}
for (auto& svc : paxos_service) {
svc->refresh(need_bootstrap);
}
for (auto& svc : paxos_service) {
svc->post_refresh();
}
load_metadata();
}
void Monitor::register_cluster_logger()
{
if (!cluster_logger_registered) {
dout(10) << "register_cluster_logger" << dendl;
cluster_logger_registered = true;
cct->get_perfcounters_collection()->add(cluster_logger);
} else {
dout(10) << "register_cluster_logger - already registered" << dendl;