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OSDMonitor.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>
* Copyright (C) 2013,2014 Cloudwatt <libre.licensing@cloudwatt.com>
* Copyright (C) 2014 Red Hat <contact@redhat.com>
*
* Author: Loic Dachary <loic@dachary.org>
*
* 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 <algorithm>
#include <boost/algorithm/string.hpp>
#include <locale>
#include <sstream>
#include "mon/OSDMonitor.h"
#include "mon/Monitor.h"
#include "mon/MDSMonitor.h"
#include "mon/PGMonitor.h"
#include "mon/MgrStatMonitor.h"
#include "mon/AuthMonitor.h"
#include "mon/ConfigKeyService.h"
#include "mon/MonitorDBStore.h"
#include "mon/Session.h"
#include "crush/CrushWrapper.h"
#include "crush/CrushTester.h"
#include "crush/CrushTreeDumper.h"
#include "messages/MOSDBeacon.h"
#include "messages/MOSDFailure.h"
#include "messages/MOSDMarkMeDown.h"
#include "messages/MOSDFull.h"
#include "messages/MOSDMap.h"
#include "messages/MMonGetOSDMap.h"
#include "messages/MOSDBoot.h"
#include "messages/MOSDAlive.h"
#include "messages/MPoolOp.h"
#include "messages/MPoolOpReply.h"
#include "messages/MOSDPGCreate.h"
#include "messages/MOSDPGCreated.h"
#include "messages/MOSDPGTemp.h"
#include "messages/MMonCommand.h"
#include "messages/MRemoveSnaps.h"
#include "messages/MOSDScrub.h"
#include "messages/MRoute.h"
#include "common/TextTable.h"
#include "common/Timer.h"
#include "common/ceph_argparse.h"
#include "common/perf_counters.h"
#include "common/strtol.h"
#include "common/config.h"
#include "common/errno.h"
#include "erasure-code/ErasureCodePlugin.h"
#include "compressor/Compressor.h"
#include "common/Checksummer.h"
#include "include/compat.h"
#include "include/assert.h"
#include "include/stringify.h"
#include "include/util.h"
#include "common/cmdparse.h"
#include "include/str_list.h"
#include "include/str_map.h"
#include "include/scope_guard.h"
#include "json_spirit/json_spirit_reader.h"
#include <boost/algorithm/string/predicate.hpp>
#define dout_subsys ceph_subsys_mon
#define OSD_PG_CREATING_PREFIX "osd_pg_creating"
namespace {
const uint32_t MAX_POOL_APPLICATIONS = 4;
const uint32_t MAX_POOL_APPLICATION_KEYS = 64;
const uint32_t MAX_POOL_APPLICATION_LENGTH = 128;
} // anonymous namespace
void LastEpochClean::Lec::report(ps_t ps, epoch_t last_epoch_clean)
{
if (epoch_by_pg.size() <= ps) {
epoch_by_pg.resize(ps + 1, 0);
}
const auto old_lec = epoch_by_pg[ps];
if (old_lec >= last_epoch_clean) {
// stale lec
return;
}
epoch_by_pg[ps] = last_epoch_clean;
if (last_epoch_clean < floor) {
floor = last_epoch_clean;
} else if (last_epoch_clean > floor) {
if (old_lec == floor) {
// probably should increase floor?
auto new_floor = std::min_element(std::begin(epoch_by_pg),
std::end(epoch_by_pg));
floor = *new_floor;
}
}
if (ps != next_missing) {
return;
}
for (; next_missing < epoch_by_pg.size(); next_missing++) {
if (epoch_by_pg[next_missing] == 0) {
break;
}
}
}
void LastEpochClean::remove_pool(uint64_t pool)
{
report_by_pool.erase(pool);
}
void LastEpochClean::report(const pg_t& pg, epoch_t last_epoch_clean)
{
auto& lec = report_by_pool[pg.pool()];
return lec.report(pg.ps(), last_epoch_clean);
}
epoch_t LastEpochClean::get_lower_bound(const OSDMap& latest) const
{
auto floor = latest.get_epoch();
for (auto& pool : latest.get_pools()) {
auto reported = report_by_pool.find(pool.first);
if (reported == report_by_pool.end()) {
return 0;
}
if (reported->second.next_missing < pool.second.get_pg_num()) {
return 0;
}
if (reported->second.floor < floor) {
floor = reported->second.floor;
}
}
return floor;
}
struct C_UpdateCreatingPGs : public Context {
OSDMonitor *osdmon;
utime_t start;
epoch_t epoch;
C_UpdateCreatingPGs(OSDMonitor *osdmon, epoch_t e) :
osdmon(osdmon), start(ceph_clock_now()), epoch(e) {}
void finish(int r) override {
if (r >= 0) {
utime_t end = ceph_clock_now();
dout(10) << "osdmap epoch " << epoch << " mapping took "
<< (end - start) << " seconds" << dendl;
osdmon->update_creating_pgs();
osdmon->check_pg_creates_subs();
}
}
};
#undef dout_prefix
#define dout_prefix _prefix(_dout, mon, osdmap)
static ostream& _prefix(std::ostream *_dout, Monitor *mon, const OSDMap& osdmap) {
return *_dout << "mon." << mon->name << "@" << mon->rank
<< "(" << mon->get_state_name()
<< ").osd e" << osdmap.get_epoch() << " ";
}
OSDMonitor::OSDMonitor(
CephContext *cct,
Monitor *mn,
Paxos *p,
const string& service_name)
: PaxosService(mn, p, service_name),
cct(cct),
inc_osd_cache(g_conf->mon_osd_cache_size),
full_osd_cache(g_conf->mon_osd_cache_size),
last_attempted_minwait_time(utime_t()),
mapper(mn->cct, &mn->cpu_tp),
op_tracker(cct, true, 1)
{}
bool OSDMonitor::_have_pending_crush()
{
return pending_inc.crush.length() > 0;
}
CrushWrapper &OSDMonitor::_get_stable_crush()
{
return *osdmap.crush;
}
void OSDMonitor::_get_pending_crush(CrushWrapper& newcrush)
{
bufferlist bl;
if (pending_inc.crush.length())
bl = pending_inc.crush;
else
osdmap.crush->encode(bl, CEPH_FEATURES_SUPPORTED_DEFAULT);
bufferlist::iterator p = bl.begin();
newcrush.decode(p);
}
void OSDMonitor::create_initial()
{
dout(10) << "create_initial for " << mon->monmap->fsid << dendl;
OSDMap newmap;
bufferlist bl;
mon->store->get("mkfs", "osdmap", bl);
if (bl.length()) {
newmap.decode(bl);
newmap.set_fsid(mon->monmap->fsid);
} else {
newmap.build_simple(g_ceph_context, 0, mon->monmap->fsid, 0);
}
newmap.set_epoch(1);
newmap.created = newmap.modified = ceph_clock_now();
// new clusters should sort bitwise by default.
newmap.set_flag(CEPH_OSDMAP_SORTBITWISE);
// new cluster should require latest by default
if (g_conf->mon_debug_no_require_luminous) {
newmap.require_osd_release = CEPH_RELEASE_KRAKEN;
derr << __func__ << " mon_debug_no_require_luminous=true" << dendl;
} else {
newmap.require_osd_release = CEPH_RELEASE_LUMINOUS;
newmap.flags |= CEPH_OSDMAP_RECOVERY_DELETES;
newmap.full_ratio = g_conf->mon_osd_full_ratio;
if (newmap.full_ratio > 1.0) newmap.full_ratio /= 100;
newmap.backfillfull_ratio = g_conf->mon_osd_backfillfull_ratio;
if (newmap.backfillfull_ratio > 1.0) newmap.backfillfull_ratio /= 100;
newmap.nearfull_ratio = g_conf->mon_osd_nearfull_ratio;
if (newmap.nearfull_ratio > 1.0) newmap.nearfull_ratio /= 100;
int r = ceph_release_from_name(
g_conf->mon_osd_initial_require_min_compat_client.c_str());
if (r <= 0) {
assert(0 == "mon_osd_initial_require_min_compat_client is not valid");
}
newmap.require_min_compat_client = r;
}
// encode into pending incremental
newmap.encode(pending_inc.fullmap,
mon->get_quorum_con_features() | CEPH_FEATURE_RESERVED);
pending_inc.full_crc = newmap.get_crc();
dout(20) << " full crc " << pending_inc.full_crc << dendl;
}
void OSDMonitor::get_store_prefixes(std::set<string>& s)
{
s.insert(service_name);
s.insert(OSD_PG_CREATING_PREFIX);
}
void OSDMonitor::update_from_paxos(bool *need_bootstrap)
{
version_t version = get_last_committed();
if (version == osdmap.epoch)
return;
assert(version > osdmap.epoch);
dout(15) << "update_from_paxos paxos e " << version
<< ", my e " << osdmap.epoch << dendl;
if (mapping_job) {
if (!mapping_job->is_done()) {
dout(1) << __func__ << " mapping job "
<< mapping_job.get() << " did not complete, "
<< mapping_job->shards << " left, canceling" << dendl;
mapping_job->abort();
}
mapping_job.reset();
}
load_health();
/*
* We will possibly have a stashed latest that *we* wrote, and we will
* always be sure to have the oldest full map in the first..last range
* due to encode_trim_extra(), which includes the oldest full map in the trim
* transaction.
*
* encode_trim_extra() does not however write the full map's
* version to 'full_latest'. This is only done when we are building the
* full maps from the incremental versions. But don't panic! We make sure
* that the following conditions find whichever full map version is newer.
*/
version_t latest_full = get_version_latest_full();
if (latest_full == 0 && get_first_committed() > 1)
latest_full = get_first_committed();
if (get_first_committed() > 1 &&
latest_full < get_first_committed()) {
// the monitor could be just sync'ed with its peer, and the latest_full key
// is not encoded in the paxos commits in encode_pending(), so we need to
// make sure we get it pointing to a proper version.
version_t lc = get_last_committed();
version_t fc = get_first_committed();
dout(10) << __func__ << " looking for valid full map in interval"
<< " [" << fc << ", " << lc << "]" << dendl;
latest_full = 0;
for (version_t v = lc; v >= fc; v--) {
string full_key = "full_" + stringify(v);
if (mon->store->exists(get_service_name(), full_key)) {
dout(10) << __func__ << " found latest full map v " << v << dendl;
latest_full = v;
break;
}
}
assert(latest_full > 0);
auto t(std::make_shared<MonitorDBStore::Transaction>());
put_version_latest_full(t, latest_full);
mon->store->apply_transaction(t);
dout(10) << __func__ << " updated the on-disk full map version to "
<< latest_full << dendl;
}
if ((latest_full > 0) && (latest_full > osdmap.epoch)) {
bufferlist latest_bl;
get_version_full(latest_full, latest_bl);
assert(latest_bl.length() != 0);
dout(7) << __func__ << " loading latest full map e" << latest_full << dendl;
osdmap.decode(latest_bl);
}
if (mon->monmap->get_required_features().contains_all(
ceph::features::mon::FEATURE_LUMINOUS)) {
bufferlist bl;
if (!mon->store->get(OSD_PG_CREATING_PREFIX, "creating", bl)) {
auto p = bl.begin();
std::lock_guard<std::mutex> l(creating_pgs_lock);
creating_pgs.decode(p);
dout(7) << __func__ << " loading creating_pgs last_scan_epoch "
<< creating_pgs.last_scan_epoch
<< " with " << creating_pgs.pgs.size() << " pgs" << dendl;
} else {
dout(1) << __func__ << " missing creating pgs; upgrade from post-kraken?"
<< dendl;
}
}
// make sure we're using the right pg service.. remove me post-luminous!
if (osdmap.require_osd_release >= CEPH_RELEASE_LUMINOUS) {
dout(10) << __func__ << " pgservice is mgrstat" << dendl;
mon->pgservice = mon->mgrstatmon()->get_pg_stat_service();
} else {
dout(10) << __func__ << " pgservice is pg" << dendl;
mon->pgservice = mon->pgmon()->get_pg_stat_service();
}
// walk through incrementals
MonitorDBStore::TransactionRef t;
size_t tx_size = 0;
while (version > osdmap.epoch) {
bufferlist inc_bl;
int err = get_version(osdmap.epoch+1, inc_bl);
assert(err == 0);
assert(inc_bl.length());
dout(7) << "update_from_paxos applying incremental " << osdmap.epoch+1
<< dendl;
OSDMap::Incremental inc(inc_bl);
err = osdmap.apply_incremental(inc);
assert(err == 0);
if (!t)
t.reset(new MonitorDBStore::Transaction);
// Write out the full map for all past epochs. Encode the full
// map with the same features as the incremental. If we don't
// know, use the quorum features. If we don't know those either,
// encode with all features.
uint64_t f = inc.encode_features;
if (!f)
f = mon->get_quorum_con_features();
if (!f)
f = -1;
bufferlist full_bl;
osdmap.encode(full_bl, f | CEPH_FEATURE_RESERVED);
tx_size += full_bl.length();
bufferlist orig_full_bl;
get_version_full(osdmap.epoch, orig_full_bl);
if (orig_full_bl.length()) {
// the primary provided the full map
assert(inc.have_crc);
if (inc.full_crc != osdmap.crc) {
// This will happen if the mons were running mixed versions in
// the past or some other circumstance made the full encoded
// maps divergent. Reloading here will bring us back into
// sync with the primary for this and all future maps. OSDs
// will also be brought back into sync when they discover the
// crc mismatch and request a full map from a mon.
derr << __func__ << " full map CRC mismatch, resetting to canonical"
<< dendl;
osdmap = OSDMap();
osdmap.decode(orig_full_bl);
}
} else {
assert(!inc.have_crc);
put_version_full(t, osdmap.epoch, full_bl);
}
put_version_latest_full(t, osdmap.epoch);
// share
dout(1) << osdmap << dendl;
if (osdmap.epoch == 1) {
t->erase("mkfs", "osdmap");
}
// make sure we're using the right pg service.. remove me post-luminous!
if (osdmap.require_osd_release >= CEPH_RELEASE_LUMINOUS) {
dout(10) << __func__ << " pgservice is mgrstat" << dendl;
mon->pgservice = mon->mgrstatmon()->get_pg_stat_service();
} else {
dout(10) << __func__ << " pgservice is pg" << dendl;
mon->pgservice = mon->pgmon()->get_pg_stat_service();
}
if (tx_size > g_conf->mon_sync_max_payload_size*2) {
mon->store->apply_transaction(t);
t = MonitorDBStore::TransactionRef();
tx_size = 0;
}
if (mon->monmap->get_required_features().contains_all(
ceph::features::mon::FEATURE_LUMINOUS)) {
for (const auto &osd_state : inc.new_state) {
if (osd_state.second & CEPH_OSD_UP) {
// could be marked up *or* down, but we're too lazy to check which
last_osd_report.erase(osd_state.first);
}
if (osd_state.second & CEPH_OSD_EXISTS) {
// could be created *or* destroyed, but we can safely drop it
osd_epochs.erase(osd_state.first);
}
}
}
}
if (t) {
mon->store->apply_transaction(t);
}
for (int o = 0; o < osdmap.get_max_osd(); o++) {
if (osdmap.is_out(o))
continue;
auto found = down_pending_out.find(o);
if (osdmap.is_down(o)) {
// populate down -> out map
if (found == down_pending_out.end()) {
dout(10) << " adding osd." << o << " to down_pending_out map" << dendl;
down_pending_out[o] = ceph_clock_now();
}
} else {
if (found != down_pending_out.end()) {
dout(10) << " removing osd." << o << " from down_pending_out map" << dendl;
down_pending_out.erase(found);
}
}
}
// XXX: need to trim MonSession connected with a osd whose id > max_osd?
if (mon->is_leader()) {
// kick pgmon, make sure it's seen the latest map
mon->pgmon()->check_osd_map(osdmap.epoch);
}
check_osdmap_subs();
check_pg_creates_subs();
share_map_with_random_osd();
update_logger();
process_failures();
// make sure our feature bits reflect the latest map
update_msgr_features();
if (!mon->is_leader()) {
// will be called by on_active() on the leader, avoid doing so twice
start_mapping();
}
}
void OSDMonitor::start_mapping()
{
// initiate mapping job
if (mapping_job) {
dout(10) << __func__ << " canceling previous mapping_job " << mapping_job.get()
<< dendl;
mapping_job->abort();
}
if (!osdmap.get_pools().empty()) {
auto fin = new C_UpdateCreatingPGs(this, osdmap.get_epoch());
mapping_job = mapping.start_update(osdmap, mapper,
g_conf->mon_osd_mapping_pgs_per_chunk);
dout(10) << __func__ << " started mapping job " << mapping_job.get()
<< " at " << fin->start << dendl;
mapping_job->set_finish_event(fin);
} else {
dout(10) << __func__ << " no pools, no mapping job" << dendl;
mapping_job = nullptr;
}
}
void OSDMonitor::update_msgr_features()
{
set<int> types;
types.insert((int)entity_name_t::TYPE_OSD);
types.insert((int)entity_name_t::TYPE_CLIENT);
types.insert((int)entity_name_t::TYPE_MDS);
types.insert((int)entity_name_t::TYPE_MON);
for (set<int>::iterator q = types.begin(); q != types.end(); ++q) {
uint64_t mask;
uint64_t features = osdmap.get_features(*q, &mask);
if ((mon->messenger->get_policy(*q).features_required & mask) != features) {
dout(0) << "crush map has features " << features << ", adjusting msgr requires" << dendl;
Messenger::Policy p = mon->messenger->get_policy(*q);
p.features_required = (p.features_required & ~mask) | features;
mon->messenger->set_policy(*q, p);
}
}
}
void OSDMonitor::on_active()
{
update_logger();
if (mon->is_leader()) {
mon->clog->debug() << "osdmap " << osdmap;
} else {
list<MonOpRequestRef> ls;
take_all_failures(ls);
while (!ls.empty()) {
MonOpRequestRef op = ls.front();
op->mark_osdmon_event(__func__);
dispatch(op);
ls.pop_front();
}
}
start_mapping();
}
void OSDMonitor::on_restart()
{
last_osd_report.clear();
if (mon->is_leader()) {
// fix ruleset != ruleid
if (osdmap.crush->has_legacy_rulesets() &&
!osdmap.crush->has_multirule_rulesets()) {
CrushWrapper newcrush;
_get_pending_crush(newcrush);
int r = newcrush.renumber_rules_by_ruleset();
if (r >= 0) {
dout(1) << __func__ << " crush map has ruleset != rule id; fixing" << dendl;
pending_inc.crush.clear();
newcrush.encode(pending_inc.crush, mon->get_quorum_con_features());
} else {
dout(10) << __func__ << " unable to renumber rules by ruleset" << dendl;
}
}
}
}
void OSDMonitor::on_shutdown()
{
dout(10) << __func__ << dendl;
if (mapping_job) {
dout(10) << __func__ << " canceling previous mapping_job " << mapping_job.get()
<< dendl;
mapping_job->abort();
}
// discard failure info, waiters
list<MonOpRequestRef> ls;
take_all_failures(ls);
ls.clear();
}
void OSDMonitor::update_logger()
{
dout(10) << "update_logger" << dendl;
mon->cluster_logger->set(l_cluster_num_osd, osdmap.get_num_osds());
mon->cluster_logger->set(l_cluster_num_osd_up, osdmap.get_num_up_osds());
mon->cluster_logger->set(l_cluster_num_osd_in, osdmap.get_num_in_osds());
mon->cluster_logger->set(l_cluster_osd_epoch, osdmap.get_epoch());
}
void OSDMonitor::create_pending()
{
pending_inc = OSDMap::Incremental(osdmap.epoch+1);
pending_inc.fsid = mon->monmap->fsid;
dout(10) << "create_pending e " << pending_inc.epoch << dendl;
// clean up pg_temp, primary_temp
OSDMap::clean_temps(g_ceph_context, osdmap, &pending_inc);
dout(10) << "create_pending did clean_temps" << dendl;
// On upgrade OSDMap has new field set by mon_osd_backfillfull_ratio config
// instead of osd_backfill_full_ratio config
if (osdmap.backfillfull_ratio <= 0) {
pending_inc.new_backfillfull_ratio = g_conf->mon_osd_backfillfull_ratio;
if (pending_inc.new_backfillfull_ratio > 1.0)
pending_inc.new_backfillfull_ratio /= 100;
dout(1) << __func__ << " setting backfillfull_ratio = "
<< pending_inc.new_backfillfull_ratio << dendl;
}
if (osdmap.get_epoch() > 0 &&
osdmap.require_osd_release < CEPH_RELEASE_LUMINOUS) {
// transition full ratios from PGMap to OSDMap (on upgrade)
float full_ratio = mon->pgservice->get_full_ratio();
float nearfull_ratio = mon->pgservice->get_nearfull_ratio();
if (osdmap.full_ratio != full_ratio) {
dout(10) << __func__ << " full_ratio " << osdmap.full_ratio
<< " -> " << full_ratio << " (from pgmap)" << dendl;
pending_inc.new_full_ratio = full_ratio;
}
if (osdmap.nearfull_ratio != nearfull_ratio) {
dout(10) << __func__ << " nearfull_ratio " << osdmap.nearfull_ratio
<< " -> " << nearfull_ratio << " (from pgmap)" << dendl;
pending_inc.new_nearfull_ratio = nearfull_ratio;
}
} else {
// safety check (this shouldn't really happen)
if (osdmap.full_ratio <= 0) {
pending_inc.new_full_ratio = g_conf->mon_osd_full_ratio;
if (pending_inc.new_full_ratio > 1.0)
pending_inc.new_full_ratio /= 100;
dout(1) << __func__ << " setting full_ratio = "
<< pending_inc.new_full_ratio << dendl;
}
if (osdmap.nearfull_ratio <= 0) {
pending_inc.new_nearfull_ratio = g_conf->mon_osd_nearfull_ratio;
if (pending_inc.new_nearfull_ratio > 1.0)
pending_inc.new_nearfull_ratio /= 100;
dout(1) << __func__ << " setting nearfull_ratio = "
<< pending_inc.new_nearfull_ratio << dendl;
}
}
}
creating_pgs_t
OSDMonitor::update_pending_pgs(const OSDMap::Incremental& inc)
{
dout(10) << __func__ << dendl;
creating_pgs_t pending_creatings;
{
std::lock_guard<std::mutex> l(creating_pgs_lock);
pending_creatings = creating_pgs;
}
// check for new or old pools
if (pending_creatings.last_scan_epoch < inc.epoch) {
if (osdmap.get_epoch() &&
osdmap.require_osd_release < CEPH_RELEASE_LUMINOUS) {
auto added =
mon->pgservice->maybe_add_creating_pgs(creating_pgs.last_scan_epoch,
osdmap.get_pools(),
&pending_creatings);
dout(7) << __func__ << " " << added << " pgs added from pgmap" << dendl;
}
unsigned queued = 0;
queued += scan_for_creating_pgs(osdmap.get_pools(),
inc.old_pools,
inc.modified,
&pending_creatings);
queued += scan_for_creating_pgs(inc.new_pools,
inc.old_pools,
inc.modified,
&pending_creatings);
dout(10) << __func__ << " " << queued << " pools queued" << dendl;
for (auto deleted_pool : inc.old_pools) {
auto removed = pending_creatings.remove_pool(deleted_pool);
dout(10) << __func__ << " " << removed
<< " pg removed because containing pool deleted: "
<< deleted_pool << dendl;
last_epoch_clean.remove_pool(deleted_pool);
}
// pgmon updates its creating_pgs in check_osd_map() which is called by
// on_active() and check_osd_map() could be delayed if lease expires, so its
// creating_pgs could be stale in comparison with the one of osdmon. let's
// trim them here. otherwise, they will be added back after being erased.
unsigned removed = 0;
for (auto& pg : pending_created_pgs) {
dout(20) << __func__ << " noting created pg " << pg << dendl;
pending_creatings.created_pools.insert(pg.pool());
removed += pending_creatings.pgs.erase(pg);
}
pending_created_pgs.clear();
dout(10) << __func__ << " " << removed
<< " pgs removed because they're created" << dendl;
pending_creatings.last_scan_epoch = osdmap.get_epoch();
}
// process queue
unsigned max = MAX(1, g_conf->mon_osd_max_creating_pgs);
const auto total = pending_creatings.pgs.size();
while (pending_creatings.pgs.size() < max &&
!pending_creatings.queue.empty()) {
auto p = pending_creatings.queue.begin();
int64_t poolid = p->first;
dout(10) << __func__ << " pool " << poolid
<< " created " << p->second.created
<< " modified " << p->second.modified
<< " [" << p->second.start << "-" << p->second.end << ")"
<< dendl;
int n = MIN(max - pending_creatings.pgs.size(),
p->second.end - p->second.start);
ps_t first = p->second.start;
ps_t end = first + n;
for (ps_t ps = first; ps < end; ++ps) {
const pg_t pgid{ps, static_cast<uint64_t>(poolid)};
// NOTE: use the *current* epoch as the PG creation epoch so that the
// OSD does not have to generate a long set of PastIntervals.
pending_creatings.pgs.emplace(pgid, make_pair(inc.epoch,
p->second.modified));
dout(10) << __func__ << " adding " << pgid << dendl;
}
p->second.start = end;
if (p->second.done()) {
dout(10) << __func__ << " done with queue for " << poolid << dendl;
pending_creatings.queue.erase(p);
} else {
dout(10) << __func__ << " pool " << poolid
<< " now [" << p->second.start << "-" << p->second.end << ")"
<< dendl;
}
}
dout(10) << __func__ << " queue remaining: " << pending_creatings.queue.size()
<< " pools" << dendl;
dout(10) << __func__
<< " " << (pending_creatings.pgs.size() - total)
<< "/" << pending_creatings.pgs.size()
<< " pgs added from queued pools" << dendl;
return pending_creatings;
}
void OSDMonitor::maybe_prime_pg_temp()
{
bool all = false;
if (pending_inc.crush.length()) {
dout(10) << __func__ << " new crush map, all" << dendl;
all = true;
}
if (!pending_inc.new_up_client.empty()) {
dout(10) << __func__ << " new up osds, all" << dendl;
all = true;
}
// check for interesting OSDs
set<int> osds;
for (auto p = pending_inc.new_state.begin();
!all && p != pending_inc.new_state.end();
++p) {
if ((p->second & CEPH_OSD_UP) &&
osdmap.is_up(p->first)) {
osds.insert(p->first);
}
}
for (map<int32_t,uint32_t>::iterator p = pending_inc.new_weight.begin();
!all && p != pending_inc.new_weight.end();
++p) {
if (p->second < osdmap.get_weight(p->first)) {
// weight reduction
osds.insert(p->first);
} else {
dout(10) << __func__ << " osd." << p->first << " weight increase, all"
<< dendl;
all = true;
}
}
if (!all && osds.empty())
return;
if (!all) {
unsigned estimate =
mapping.get_osd_acting_pgs(*osds.begin()).size() * osds.size();
if (estimate > mapping.get_num_pgs() *
g_conf->mon_osd_prime_pg_temp_max_estimate) {
dout(10) << __func__ << " estimate " << estimate << " pgs on "
<< osds.size() << " osds >= "
<< g_conf->mon_osd_prime_pg_temp_max_estimate << " of total "
<< mapping.get_num_pgs() << " pgs, all"
<< dendl;
all = true;
} else {
dout(10) << __func__ << " estimate " << estimate << " pgs on "
<< osds.size() << " osds" << dendl;
}
}
OSDMap next;
next.deepish_copy_from(osdmap);
next.apply_incremental(pending_inc);
if (next.get_pools().empty()) {
dout(10) << __func__ << " no pools, no pg_temp priming" << dendl;
} else if (all) {
PrimeTempJob job(next, this);
mapper.queue(&job, g_conf->mon_osd_mapping_pgs_per_chunk);
if (job.wait_for(g_conf->mon_osd_prime_pg_temp_max_time)) {
dout(10) << __func__ << " done in " << job.get_duration() << dendl;
} else {
dout(10) << __func__ << " did not finish in "
<< g_conf->mon_osd_prime_pg_temp_max_time
<< ", stopping" << dendl;
job.abort();
}
} else {
dout(10) << __func__ << " " << osds.size() << " interesting osds" << dendl;
utime_t stop = ceph_clock_now();
stop += g_conf->mon_osd_prime_pg_temp_max_time;
const int chunk = 1000;
int n = chunk;
std::unordered_set<pg_t> did_pgs;
for (auto osd : osds) {
auto& pgs = mapping.get_osd_acting_pgs(osd);
dout(20) << __func__ << " osd." << osd << " " << pgs << dendl;
for (auto pgid : pgs) {
if (!did_pgs.insert(pgid).second) {
continue;
}
prime_pg_temp(next, pgid);
if (--n <= 0) {
n = chunk;
if (ceph_clock_now() > stop) {
dout(10) << __func__ << " consumed more than "
<< g_conf->mon_osd_prime_pg_temp_max_time
<< " seconds, stopping"
<< dendl;
return;
}
}
}
}
}
}
void OSDMonitor::prime_pg_temp(
const OSDMap& next,
pg_t pgid)
{
if (mon->monmap->get_required_features().contains_all(
ceph::features::mon::FEATURE_LUMINOUS)) {
// TODO: remove this creating_pgs direct access?
if (creating_pgs.pgs.count(pgid)) {
return;
}
} else {
if (mon->pgservice->is_creating_pg(pgid)) {
return;
}
}
if (!osdmap.pg_exists(pgid)) {
return;
}
vector<int> up, acting;
mapping.get(pgid, &up, nullptr, &acting, nullptr);
vector<int> next_up, next_acting;
int next_up_primary, next_acting_primary;
next.pg_to_up_acting_osds(pgid, &next_up, &next_up_primary,
&next_acting, &next_acting_primary);
if (acting == next_acting && next_up != next_acting)
return; // no change since last epoch
if (acting.empty())
return; // if previously empty now we can be no worse off
const pg_pool_t *pool = next.get_pg_pool(pgid.pool());
if (pool && acting.size() < pool->min_size)
return; // can be no worse off than before
if (next_up == next_acting) {
acting.clear();
dout(20) << __func__ << "next_up === next_acting now, clear pg_temp"
<< dendl;
}
dout(20) << __func__ << " " << pgid << " " << up << "/" << acting
<< " -> " << next_up << "/" << next_acting
<< ", priming " << acting
<< dendl;
{
Mutex::Locker l(prime_pg_temp_lock);
// do not touch a mapping if a change is pending
pending_inc.new_pg_temp.emplace(
pgid,
mempool::osdmap::vector<int>(acting.begin(), acting.end()));
}
}
/**
* @note receiving a transaction in this function gives a fair amount of
* freedom to the service implementation if it does need it. It shouldn't.
*/
void OSDMonitor::encode_pending(MonitorDBStore::TransactionRef t)
{
dout(10) << "encode_pending e " << pending_inc.epoch
<< dendl;
// finalize up pending_inc
pending_inc.modified = ceph_clock_now();
int r = pending_inc.propagate_snaps_to_tiers(g_ceph_context, osdmap);
assert(r == 0);
if (mapping_job) {
if (!mapping_job->is_done()) {
dout(1) << __func__ << " skipping prime_pg_temp; mapping job "
<< mapping_job.get() << " did not complete, "
<< mapping_job->shards << " left" << dendl;
mapping_job->abort();
} else if (mapping.get_epoch() < osdmap.get_epoch()) {
dout(1) << __func__ << " skipping prime_pg_temp; mapping job "
<< mapping_job.get() << " is prior epoch "
<< mapping.get_epoch() << dendl;
} else {
if (g_conf->mon_osd_prime_pg_temp) {
maybe_prime_pg_temp();
}
}
} else if (g_conf->mon_osd_prime_pg_temp) {
dout(1) << __func__ << " skipping prime_pg_temp; mapping job did not start"
<< dendl;
}
mapping_job.reset();
// ensure we don't have blank new_state updates. these are interrpeted as
// CEPH_OSD_UP (and almost certainly not what we want!).
auto p = pending_inc.new_state.begin();
while (p != pending_inc.new_state.end()) {
if (p->second == 0) {
dout(10) << "new_state for osd." << p->first << " is 0, removing" << dendl;
p = pending_inc.new_state.erase(p);
} else {
++p;
}
}
bufferlist bl;
{
OSDMap tmp;
tmp.deepish_copy_from(osdmap);
tmp.apply_incremental(pending_inc);
if (tmp.require_osd_release >= CEPH_RELEASE_LUMINOUS) {
// set or clear full/nearfull?
int full, backfill, nearfull;
tmp.count_full_nearfull_osds(&full, &backfill, &nearfull);
if (full > 0) {
if (!tmp.test_flag(CEPH_OSDMAP_FULL)) {
dout(10) << __func__ << " setting full flag" << dendl;
add_flag(CEPH_OSDMAP_FULL);
remove_flag(CEPH_OSDMAP_NEARFULL);
}
} else {
if (tmp.test_flag(CEPH_OSDMAP_FULL)) {
dout(10) << __func__ << " clearing full flag" << dendl;
remove_flag(CEPH_OSDMAP_FULL);
}
if (nearfull > 0) {
if (!tmp.test_flag(CEPH_OSDMAP_NEARFULL)) {
dout(10) << __func__ << " setting nearfull flag" << dendl;
add_flag(CEPH_OSDMAP_NEARFULL);
}
} else {
if (tmp.test_flag(CEPH_OSDMAP_NEARFULL)) {
dout(10) << __func__ << " clearing nearfull flag" << dendl;
remove_flag(CEPH_OSDMAP_NEARFULL);
}
}
}
// min_compat_client?