/
OSDMonitor.cc
9792 lines (9023 loc) · 308 KB
/
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 <sstream>
#include "OSDMonitor.h"
#include "Monitor.h"
#include "MDSMonitor.h"
#include "PGMonitor.h"
#include "MonitorDBStore.h"
#include "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 "json_spirit/json_spirit_reader.h"
#define dout_subsys ceph_subsys_mon
#define OSD_PG_CREATING_PREFIX "osd_pg_creating"
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,
g_conf->osd_pg_bits, g_conf->osd_pgp_bits);
}
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;
} else {
newmap.require_osd_release = CEPH_RELEASE_LUMINOUS;
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();
}
/*
* 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;
}
}
// 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");
}
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)) {
creating_pgs = update_pending_pgs(inc);
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();
}
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);
}
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->info() << "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();
}
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());
}
template <typename F>
class OSDUtilizationDumper : public CrushTreeDumper::Dumper<F> {
public:
typedef CrushTreeDumper::Dumper<F> Parent;
OSDUtilizationDumper(const CrushWrapper *crush, const OSDMap *osdmap_,
const PGMap *pgm_, bool tree_) :
Parent(crush),
osdmap(osdmap_),
pgm(pgm_),
tree(tree_),
average_util(average_utilization()),
min_var(-1),
max_var(-1),
stddev(0),
sum(0) {
}
protected:
void dump_stray(F *f) {
for (int i = 0; i < osdmap->get_max_osd(); i++) {
if (osdmap->exists(i) && !this->is_touched(i))
dump_item(CrushTreeDumper::Item(i, 0, 0), f);
}
}
void dump_item(const CrushTreeDumper::Item &qi, F *f) override {
if (!tree && qi.is_bucket())
return;
float reweight = qi.is_bucket() ? -1 : osdmap->get_weightf(qi.id);
int64_t kb = 0, kb_used = 0, kb_avail = 0;
double util = 0;
if (get_bucket_utilization(qi.id, &kb, &kb_used, &kb_avail))
if (kb_used && kb)
util = 100.0 * (double)kb_used / (double)kb;
double var = 1.0;
if (average_util)
var = util / average_util;
size_t num_pgs = qi.is_bucket() ? 0 : pgm->get_num_pg_by_osd(qi.id);
dump_item(qi, reweight, kb, kb_used, kb_avail, util, var, num_pgs, f);
if (!qi.is_bucket() && reweight > 0) {
if (min_var < 0 || var < min_var)
min_var = var;
if (max_var < 0 || var > max_var)
max_var = var;
double dev = util - average_util;
dev *= dev;
stddev += reweight * dev;
sum += reweight;
}
}
virtual void dump_item(const CrushTreeDumper::Item &qi,
float &reweight,
int64_t kb,
int64_t kb_used,
int64_t kb_avail,
double& util,
double& var,
const size_t num_pgs,
F *f) = 0;
double dev() {
return sum > 0 ? sqrt(stddev / sum) : 0;
}
double average_utilization() {
int64_t kb = 0, kb_used = 0;
for (int i = 0; i < osdmap->get_max_osd(); i++) {
if (!osdmap->exists(i) || osdmap->get_weight(i) == 0)
continue;
int64_t kb_i, kb_used_i, kb_avail_i;
if (get_osd_utilization(i, &kb_i, &kb_used_i, &kb_avail_i)) {
kb += kb_i;
kb_used += kb_used_i;
}
}
return kb > 0 ? 100.0 * (double)kb_used / (double)kb : 0;
}
bool get_osd_utilization(int id, int64_t* kb, int64_t* kb_used,
int64_t* kb_avail) const {
typedef ceph::unordered_map<int32_t,osd_stat_t> OsdStat;
OsdStat::const_iterator p = pgm->osd_stat.find(id);
if (p == pgm->osd_stat.end())
return false;
*kb = p->second.kb;
*kb_used = p->second.kb_used;
*kb_avail = p->second.kb_avail;
return *kb > 0;
}
bool get_bucket_utilization(int id, int64_t* kb, int64_t* kb_used,
int64_t* kb_avail) const {
if (id >= 0) {
if (osdmap->is_out(id)) {
*kb = 0;
*kb_used = 0;
*kb_avail = 0;
return true;
}
return get_osd_utilization(id, kb, kb_used, kb_avail);
}
*kb = 0;
*kb_used = 0;
*kb_avail = 0;
for (int k = osdmap->crush->get_bucket_size(id) - 1; k >= 0; k--) {
int item = osdmap->crush->get_bucket_item(id, k);
int64_t kb_i = 0, kb_used_i = 0, kb_avail_i = 0;
if (!get_bucket_utilization(item, &kb_i, &kb_used_i, &kb_avail_i))
return false;
*kb += kb_i;
*kb_used += kb_used_i;
*kb_avail += kb_avail_i;
}
return *kb > 0;
}
protected:
const OSDMap *osdmap;
const PGMap *pgm;
bool tree;
double average_util;
double min_var;
double max_var;
double stddev;
double sum;
};
class OSDUtilizationPlainDumper : public OSDUtilizationDumper<TextTable> {
public:
typedef OSDUtilizationDumper<TextTable> Parent;
OSDUtilizationPlainDumper(const CrushWrapper *crush, const OSDMap *osdmap,
const PGMap *pgm, bool tree) :
Parent(crush, osdmap, pgm, tree) {}
void dump(TextTable *tbl) {
tbl->define_column("ID", TextTable::LEFT, TextTable::RIGHT);
tbl->define_column("WEIGHT", TextTable::LEFT, TextTable::RIGHT);
tbl->define_column("REWEIGHT", TextTable::LEFT, TextTable::RIGHT);
tbl->define_column("SIZE", TextTable::LEFT, TextTable::RIGHT);
tbl->define_column("USE", TextTable::LEFT, TextTable::RIGHT);
tbl->define_column("AVAIL", TextTable::LEFT, TextTable::RIGHT);
tbl->define_column("%USE", TextTable::LEFT, TextTable::RIGHT);
tbl->define_column("VAR", TextTable::LEFT, TextTable::RIGHT);
tbl->define_column("PGS", TextTable::LEFT, TextTable::RIGHT);
if (tree)
tbl->define_column("TYPE NAME", TextTable::LEFT, TextTable::LEFT);
Parent::dump(tbl);
dump_stray(tbl);
*tbl << "" << "" << "TOTAL"
<< si_t(pgm->osd_sum.kb << 10)
<< si_t(pgm->osd_sum.kb_used << 10)
<< si_t(pgm->osd_sum.kb_avail << 10)
<< lowprecision_t(average_util)
<< ""
<< TextTable::endrow;
}
protected:
struct lowprecision_t {
float v;
explicit lowprecision_t(float _v) : v(_v) {}
};
friend std::ostream &operator<<(ostream& out, const lowprecision_t& v);
using OSDUtilizationDumper<TextTable>::dump_item;
void dump_item(const CrushTreeDumper::Item &qi,
float &reweight,
int64_t kb,
int64_t kb_used,
int64_t kb_avail,
double& util,
double& var,
const size_t num_pgs,
TextTable *tbl) override {
*tbl << qi.id
<< weightf_t(qi.weight)
<< weightf_t(reweight)
<< si_t(kb << 10)
<< si_t(kb_used << 10)
<< si_t(kb_avail << 10)
<< lowprecision_t(util)
<< lowprecision_t(var);
if (qi.is_bucket()) {
*tbl << "-";
} else {
*tbl << num_pgs;
}
if (tree) {
ostringstream name;
for (int k = 0; k < qi.depth; k++)
name << " ";
if (qi.is_bucket()) {
int type = crush->get_bucket_type(qi.id);
name << crush->get_type_name(type) << " "
<< crush->get_item_name(qi.id);
} else {
name << "osd." << qi.id;
}
*tbl << name.str();
}
*tbl << TextTable::endrow;
}
public:
string summary() {
ostringstream out;
out << "MIN/MAX VAR: " << lowprecision_t(min_var)
<< "/" << lowprecision_t(max_var) << " "
<< "STDDEV: " << lowprecision_t(dev());
return out.str();
}
};
ostream& operator<<(ostream& out,
const OSDUtilizationPlainDumper::lowprecision_t& v)
{
if (v.v < -0.01) {
return out << "-";
} else if (v.v < 0.001) {
return out << "0";
} else {
std::streamsize p = out.precision();
return out << std::fixed << std::setprecision(2) << v.v << std::setprecision(p);
}
}
class OSDUtilizationFormatDumper : public OSDUtilizationDumper<Formatter> {
public:
typedef OSDUtilizationDumper<Formatter> Parent;
OSDUtilizationFormatDumper(const CrushWrapper *crush, const OSDMap *osdmap,
const PGMap *pgm, bool tree) :
Parent(crush, osdmap, pgm, tree) {}
void dump(Formatter *f) {
f->open_array_section("nodes");
Parent::dump(f);
f->close_section();
f->open_array_section("stray");
dump_stray(f);
f->close_section();
}
protected:
using OSDUtilizationDumper<Formatter>::dump_item;
void dump_item(const CrushTreeDumper::Item &qi,
float &reweight,
int64_t kb,
int64_t kb_used,
int64_t kb_avail,
double& util,
double& var,
const size_t num_pgs,
Formatter *f) override {
f->open_object_section("item");
CrushTreeDumper::dump_item_fields(crush, qi, f);
f->dump_float("reweight", reweight);
f->dump_int("kb", kb);
f->dump_int("kb_used", kb_used);
f->dump_int("kb_avail", kb_avail);
f->dump_float("utilization", util);
f->dump_float("var", var);
f->dump_unsigned("pgs", num_pgs);
CrushTreeDumper::dump_bucket_children(crush, qi, f);
f->close_section();
}
public:
void summary(Formatter *f) {
f->open_object_section("summary");
f->dump_int("total_kb", pgm->osd_sum.kb);
f->dump_int("total_kb_used", pgm->osd_sum.kb_used);
f->dump_int("total_kb_avail", pgm->osd_sum.kb_avail);
f->dump_float("average_utilization", average_util);
f->dump_float("min_var", min_var);
f->dump_float("max_var", max_var);
f->dump_float("dev", dev());
f->close_section();
}
};
void OSDMonitor::print_utilization(ostream &out, Formatter *f, bool tree) const
{
const PGMap *pgm = &mon->pgmon()->pg_map;
const CrushWrapper *crush = osdmap.crush.get();
if (f) {
f->open_object_section("df");
OSDUtilizationFormatDumper d(crush, &osdmap, pgm, tree);
d.dump(f);
d.summary(f);
f->close_section();
f->flush(out);
} else {
OSDUtilizationPlainDumper d(crush, &osdmap, pgm, tree);
TextTable tbl;
d.dump(&tbl);
out << tbl
<< d.summary() << "\n";
}
}
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.require_osd_release < CEPH_RELEASE_LUMINOUS) {
// transition full ratios from PGMap to OSDMap (on upgrade)
PGMap *pg_map = &mon->pgmon()->pg_map;
if (osdmap.full_ratio != pg_map->full_ratio) {
dout(10) << __func__ << " full_ratio " << osdmap.full_ratio
<< " -> " << pg_map->full_ratio << " (from pgmap)" << dendl;
pending_inc.new_full_ratio = pg_map->full_ratio;
}
if (osdmap.nearfull_ratio != pg_map->nearfull_ratio) {
dout(10) << __func__ << " nearfull_ratio " << osdmap.nearfull_ratio
<< " -> " << pg_map->nearfull_ratio << " (from pgmap)" << dendl;
pending_inc.new_nearfull_ratio = pg_map->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)
{
creating_pgs_t pending_creatings;
{
std::lock_guard<std::mutex> l(creating_pgs_lock);
pending_creatings = creating_pgs;
}
if (pending_creatings.last_scan_epoch > inc.epoch) {
return pending_creatings;
}
for (auto& pg : pending_created_pgs) {
pending_creatings.created_pools.insert(pg.pool());
pending_creatings.pgs.erase(pg);
}
pending_created_pgs.clear();
// PAXOS_PGMAP is less than PAXOS_OSDMAP, so PGMonitor::update_from_paxos()
// should have prepared the latest pgmap if any
const auto& pgm = mon->pgmon()->pg_map;
if (pgm.last_pg_scan >= creating_pgs.last_scan_epoch) {
// TODO: please stop updating pgmap with pgstats once the upgrade is completed
for (auto& pgid : pgm.creating_pgs) {
auto st = pgm.pg_stat.find(pgid);
assert(st != pgm.pg_stat.end());
auto created = make_pair(st->second.created, st->second.last_scrub_stamp);
// no need to add the pg, if it already exists in creating_pgs
pending_creatings.pgs.emplace(pgid, created);
}
}
for (auto old_pool : inc.old_pools) {
pending_creatings.created_pools.erase(old_pool);
const auto removed_pool = (uint64_t)old_pool;
auto first =
pending_creatings.pgs.lower_bound(pg_t{0, removed_pool});
auto last =
pending_creatings.pgs.lower_bound(pg_t{0, removed_pool + 1});
pending_creatings.pgs.erase(first, last);
last_epoch_clean.remove_pool(removed_pool);
}
scan_for_creating_pgs(osdmap.get_pools(),
inc.old_pools,
inc.modified,
&pending_creatings);
scan_for_creating_pgs(inc.new_pools,
inc.old_pools,
inc.modified,
&pending_creatings);
pending_creatings.last_scan_epoch = osdmap.get_epoch();
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 (map<int32_t,uint8_t>::iterator 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();