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OSDMonitor.cc
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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 <experimental/iterator>
#include <locale>
#include <sstream>
#include "mon/OSDMonitor.h"
#include "mon/Monitor.h"
#include "mon/MDSMonitor.h"
#include "mon/MgrStatMonitor.h"
#include "mon/AuthMonitor.h"
#include "mon/KVMonitor.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/MOSDMarkMeDead.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/MOSDPGCreate2.h"
#include "messages/MOSDPGCreated.h"
#include "messages/MOSDPGTemp.h"
#include "messages/MOSDPGReadyToMerge.h"
#include "messages/MMonCommand.h"
#include "messages/MRemoveSnaps.h"
#include "messages/MOSDScrub.h"
#include "messages/MRoute.h"
#include "messages/MMonGetPurgedSnaps.h"
#include "messages/MMonGetPurgedSnapsReply.h"
#include "common/TextTable.h"
#include "common/Timer.h"
#include "common/ceph_argparse.h"
#include "common/perf_counters.h"
#include "common/PriorityCache.h"
#include "common/strtol.h"
#include "common/numa.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/ceph_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 "perfglue/heap_profiler.h"
#include "auth/cephx/CephxKeyServer.h"
#include "osd/OSDCap.h"
#include "json_spirit/json_spirit_reader.h"
#include <boost/algorithm/string/predicate.hpp>
using std::dec;
using std::hex;
using std::list;
using std::map;
using std::make_pair;
using std::ostringstream;
using std::pair;
using std::set;
using std::string;
using std::stringstream;
using std::to_string;
using std::vector;
using ceph::bufferlist;
using ceph::decode;
using ceph::encode;
using ceph::ErasureCodeInterfaceRef;
using ceph::ErasureCodePluginRegistry;
using ceph::ErasureCodeProfile;
using ceph::Formatter;
using ceph::JSONFormatter;
using ceph::make_message;
#define dout_subsys ceph_subsys_mon
static const string OSD_PG_CREATING_PREFIX("osd_pg_creating");
static const string OSD_METADATA_PREFIX("osd_metadata");
static const string OSD_SNAP_PREFIX("osd_snap");
/*
OSD snapshot metadata
---------------------
-- starting with mimic, removed in octopus --
"removed_epoch_%llu_%08lx" % (pool, epoch)
-> interval_set<snapid_t>
"removed_snap_%llu_%016llx" % (pool, last_snap)
-> { first_snap, end_snap, epoch } (last_snap = end_snap - 1)
-- starting with mimic --
"purged_snap_%llu_%016llx" % (pool, last_snap)
-> { first_snap, end_snap, epoch } (last_snap = end_snap - 1)
- note that the {removed,purged}_snap put the last snap in they key so
that we can use forward iteration only to search for an epoch in an
interval. e.g., to test if epoch N is removed/purged, we'll find a key
>= N that either does or doesn't contain the given snap.
-- starting with octopus --
"purged_epoch_%08lx" % epoch
-> map<int64_t,interval_set<snapid_t>>
*/
using namespace TOPNSPC::common;
namespace {
struct OSDMemCache : public PriorityCache::PriCache {
OSDMonitor *osdmon;
int64_t cache_bytes[PriorityCache::Priority::LAST+1] = {0};
int64_t committed_bytes = 0;
double cache_ratio = 0;
OSDMemCache(OSDMonitor *m) : osdmon(m) {};
virtual uint64_t _get_used_bytes() const = 0;
virtual int64_t request_cache_bytes(
PriorityCache::Priority pri, uint64_t total_cache) const {
int64_t assigned = get_cache_bytes(pri);
switch (pri) {
// All cache items are currently set to have PRI1 priority
case PriorityCache::Priority::PRI1:
{
int64_t request = _get_used_bytes();
return (request > assigned) ? request - assigned : 0;
}
default:
break;
}
return -EOPNOTSUPP;
}
virtual int64_t get_cache_bytes(PriorityCache::Priority pri) const {
return cache_bytes[pri];
}
virtual int64_t get_cache_bytes() const {
int64_t total = 0;
for (int i = 0; i < PriorityCache::Priority::LAST + 1; i++) {
PriorityCache::Priority pri = static_cast<PriorityCache::Priority>(i);
total += get_cache_bytes(pri);
}
return total;
}
virtual void set_cache_bytes(PriorityCache::Priority pri, int64_t bytes) {
cache_bytes[pri] = bytes;
}
virtual void add_cache_bytes(PriorityCache::Priority pri, int64_t bytes) {
cache_bytes[pri] += bytes;
}
virtual int64_t commit_cache_size(uint64_t total_cache) {
committed_bytes = PriorityCache::get_chunk(
get_cache_bytes(), total_cache);
return committed_bytes;
}
virtual int64_t get_committed_size() const {
return committed_bytes;
}
virtual double get_cache_ratio() const {
return cache_ratio;
}
virtual void set_cache_ratio(double ratio) {
cache_ratio = ratio;
}
virtual string get_cache_name() const = 0;
};
struct IncCache : public OSDMemCache {
IncCache(OSDMonitor *m) : OSDMemCache(m) {};
virtual uint64_t _get_used_bytes() const {
return osdmon->inc_osd_cache.get_bytes();
}
virtual string get_cache_name() const {
return "OSDMap Inc Cache";
}
uint64_t _get_num_osdmaps() const {
return osdmon->inc_osd_cache.get_size();
}
};
struct FullCache : public OSDMemCache {
FullCache(OSDMonitor *m) : OSDMemCache(m) {};
virtual uint64_t _get_used_bytes() const {
return osdmon->full_osd_cache.get_bytes();
}
virtual string get_cache_name() const {
return "OSDMap Full Cache";
}
uint64_t _get_num_osdmaps() const {
return osdmon->full_osd_cache.get_size();
}
};
std::shared_ptr<IncCache> inc_cache;
std::shared_ptr<FullCache> full_cache;
const uint32_t MAX_POOL_APPLICATIONS = 4;
const uint32_t MAX_POOL_APPLICATION_KEYS = 64;
const uint32_t MAX_POOL_APPLICATION_LENGTH = 128;
bool is_osd_writable(const OSDCapGrant& grant, const std::string* pool_name) {
// Note: this doesn't include support for the application tag match
if ((grant.spec.allow & OSD_CAP_W) != 0) {
auto& match = grant.match;
if (match.is_match_all()) {
return true;
} else if (pool_name != nullptr &&
!match.pool_namespace.pool_name.empty() &&
match.pool_namespace.pool_name == *pool_name) {
return true;
}
}
return false;
}
bool is_unmanaged_snap_op_permitted(CephContext* cct,
const KeyServer& key_server,
const EntityName& entity_name,
const MonCap& mon_caps,
const entity_addr_t& peer_socket_addr,
const std::string* pool_name)
{
typedef std::map<std::string, std::string> CommandArgs;
if (mon_caps.is_capable(
cct, entity_name, "osd",
"osd pool op unmanaged-snap",
(pool_name == nullptr ?
CommandArgs{} /* pool DNE, require unrestricted cap */ :
CommandArgs{{"poolname", *pool_name}}),
false, true, false,
peer_socket_addr)) {
return true;
}
AuthCapsInfo caps_info;
if (!key_server.get_service_caps(entity_name, CEPH_ENTITY_TYPE_OSD,
caps_info)) {
dout(10) << "unable to locate OSD cap data for " << entity_name
<< " in auth db" << dendl;
return false;
}
string caps_str;
if (caps_info.caps.length() > 0) {
auto p = caps_info.caps.cbegin();
try {
decode(caps_str, p);
} catch (const ceph::buffer::error &err) {
derr << "corrupt OSD cap data for " << entity_name << " in auth db"
<< dendl;
return false;
}
}
OSDCap osd_cap;
if (!osd_cap.parse(caps_str, nullptr)) {
dout(10) << "unable to parse OSD cap data for " << entity_name
<< " in auth db" << dendl;
return false;
}
// if the entity has write permissions in one or all pools, permit
// usage of unmanaged-snapshots
if (osd_cap.allow_all()) {
return true;
}
for (auto& grant : osd_cap.grants) {
if (grant.profile.is_valid()) {
for (auto& profile_grant : grant.profile_grants) {
if (is_osd_writable(profile_grant, pool_name)) {
return true;
}
}
} else if (is_osd_writable(grant, pool_name)) {
return true;
}
}
return false;
}
} // 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;
}
void LastEpochClean::dump(Formatter *f) const
{
f->open_array_section("per_pool");
for (auto& [pool, lec] : report_by_pool) {
f->open_object_section("pool");
f->dump_unsigned("poolid", pool);
f->dump_unsigned("floor", lec.floor);
f->close_section();
}
f->close_section();
}
class C_UpdateCreatingPGs : public Context {
public:
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),
has_osdmap_manifest(false),
mapper(mn.cct, &mn.cpu_tp)
{
inc_cache = std::make_shared<IncCache>(this);
full_cache = std::make_shared<FullCache>(this);
cct->_conf.add_observer(this);
int r = _set_cache_sizes();
if (r < 0) {
derr << __func__ << " using default osd cache size - mon_osd_cache_size ("
<< g_conf()->mon_osd_cache_size
<< ") without priority cache management"
<< dendl;
}
}
const char **OSDMonitor::get_tracked_conf_keys() const
{
static const char* KEYS[] = {
"mon_memory_target",
"mon_memory_autotune",
"rocksdb_cache_size",
NULL
};
return KEYS;
}
void OSDMonitor::handle_conf_change(const ConfigProxy& conf,
const std::set<std::string> &changed)
{
dout(10) << __func__ << " " << changed << dendl;
if (changed.count("mon_memory_autotune")) {
_set_cache_autotuning();
}
if (changed.count("mon_memory_target") ||
changed.count("rocksdb_cache_size")) {
int r = _update_mon_cache_settings();
if (r < 0) {
derr << __func__ << " mon_memory_target:"
<< g_conf()->mon_memory_target
<< " rocksdb_cache_size:"
<< g_conf()->rocksdb_cache_size
<< ". Unable to update cache size."
<< dendl;
}
}
}
void OSDMonitor::_set_cache_autotuning()
{
if (!g_conf()->mon_memory_autotune && pcm != nullptr) {
// Disable cache autotuning
std::lock_guard l(balancer_lock);
pcm = nullptr;
}
if (g_conf()->mon_memory_autotune && pcm == nullptr) {
int r = register_cache_with_pcm();
if (r < 0) {
dout(10) << __func__
<< " Error while registering osdmon caches with pcm."
<< " Cache auto tuning not enabled."
<< dendl;
mon_memory_autotune = false;
} else {
mon_memory_autotune = true;
}
}
}
int OSDMonitor::_update_mon_cache_settings()
{
if (g_conf()->mon_memory_target <= 0 ||
g_conf()->mon_memory_target < mon_memory_min ||
g_conf()->rocksdb_cache_size <= 0) {
return -EINVAL;
}
if (pcm == nullptr && rocksdb_binned_kv_cache == nullptr) {
derr << __func__ << " not using pcm and rocksdb" << dendl;
return -EINVAL;
}
uint64_t old_mon_memory_target = mon_memory_target;
uint64_t old_rocksdb_cache_size = rocksdb_cache_size;
// Set the new pcm memory cache sizes
mon_memory_target = g_conf()->mon_memory_target;
rocksdb_cache_size = g_conf()->rocksdb_cache_size;
uint64_t base = mon_memory_base;
double fragmentation = mon_memory_fragmentation;
uint64_t target = mon_memory_target;
uint64_t min = mon_memory_min;
uint64_t max = min;
uint64_t ltarget = (1.0 - fragmentation) * target;
if (ltarget > base + min) {
max = ltarget - base;
}
int r = _set_cache_ratios();
if (r < 0) {
derr << __func__ << " Cache ratios for pcm could not be set."
<< " Review the kv (rocksdb) and mon_memory_target sizes."
<< dendl;
mon_memory_target = old_mon_memory_target;
rocksdb_cache_size = old_rocksdb_cache_size;
return -EINVAL;
}
if (mon_memory_autotune && pcm != nullptr) {
std::lock_guard l(balancer_lock);
// set pcm cache levels
pcm->set_target_memory(target);
pcm->set_min_memory(min);
pcm->set_max_memory(max);
// tune memory based on new values
pcm->tune_memory();
pcm->balance();
_set_new_cache_sizes();
dout(1) << __func__ << " Updated mon cache setting."
<< " target: " << target
<< " min: " << min
<< " max: " << max
<< dendl;
}
return 0;
}
int OSDMonitor::_set_cache_sizes()
{
if (g_conf()->mon_memory_autotune) {
// set the new osdmon cache targets to be managed by pcm
mon_osd_cache_size = g_conf()->mon_osd_cache_size;
rocksdb_cache_size = g_conf()->rocksdb_cache_size;
mon_memory_base = cct->_conf.get_val<Option::size_t>("osd_memory_base");
mon_memory_fragmentation = cct->_conf.get_val<double>("osd_memory_expected_fragmentation");
mon_memory_target = g_conf()->mon_memory_target;
mon_memory_min = g_conf()->mon_osd_cache_size_min;
if (mon_memory_target <= 0 || mon_memory_min <= 0) {
derr << __func__ << " mon_memory_target:" << mon_memory_target
<< " mon_memory_min:" << mon_memory_min
<< ". Invalid size option(s) provided."
<< dendl;
return -EINVAL;
}
// Set the initial inc and full LRU cache sizes
inc_osd_cache.set_bytes(mon_memory_min);
full_osd_cache.set_bytes(mon_memory_min);
mon_memory_autotune = g_conf()->mon_memory_autotune;
}
return 0;
}
bool OSDMonitor::_have_pending_crush()
{
return pending_inc.crush.length() > 0;
}
CrushWrapper &OSDMonitor::_get_stable_crush()
{
return *osdmap.crush;
}
CrushWrapper OSDMonitor::_get_pending_crush()
{
bufferlist bl;
if (pending_inc.crush.length())
bl = pending_inc.crush;
else
osdmap.crush->encode(bl, CEPH_FEATURES_SUPPORTED_DEFAULT);
auto p = bl.cbegin();
CrushWrapper crush;
crush.decode(p);
return crush;
}
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(cct, 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);
newmap.flags |=
CEPH_OSDMAP_RECOVERY_DELETES |
CEPH_OSDMAP_PURGED_SNAPDIRS |
CEPH_OSDMAP_PGLOG_HARDLIMIT;
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;
// new cluster should require latest by default
if (g_conf().get_val<bool>("mon_debug_no_require_quincy")) {
if (g_conf().get_val<bool>("mon_debug_no_require_pacific")) {
derr << __func__ << " mon_debug_no_require_quincy and pacific=true" << dendl;
newmap.require_osd_release = ceph_release_t::nautilus;
} else {
derr << __func__ << " mon_debug_no_require_quincy=true" << dendl;
newmap.require_osd_release = ceph_release_t::pacific;
}
} else {
newmap.require_osd_release = ceph_release_t::quincy;
}
ceph_release_t r = ceph_release_from_name(g_conf()->mon_osd_initial_require_min_compat_client);
if (!r) {
ceph_abort_msg("mon_osd_initial_require_min_compat_client is not valid");
}
newmap.require_min_compat_client = r;
// encode into pending incremental
uint64_t features = newmap.get_encoding_features();
newmap.encode(pending_inc.fullmap,
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) const
{
s.insert(service_name);
s.insert(OSD_PG_CREATING_PREFIX);
s.insert(OSD_METADATA_PREFIX);
s.insert(OSD_SNAP_PREFIX);
}
void OSDMonitor::update_from_paxos(bool *need_bootstrap)
{
// we really don't care if the version has been updated, because we may
// have trimmed without having increased the last committed; yet, we may
// need to update the in-memory manifest.
load_osdmap_manifest();
version_t version = get_last_committed();
if (version == osdmap.epoch)
return;
ceph_assert(version > osdmap.epoch);
dout(15) << "update_from_paxos paxos e " << version
<< ", my e " << osdmap.epoch << dendl;
int prev_num_up_osd = osdmap.num_up_osd;
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;
}
}
ceph_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);
ceph_assert(latest_bl.length() != 0);
dout(7) << __func__ << " loading latest full map e" << latest_full << dendl;
osdmap = OSDMap();
osdmap.decode(latest_bl);
}
bufferlist bl;
if (!mon.store->get(OSD_PG_CREATING_PREFIX, "creating", bl)) {
auto p = bl.cbegin();
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);
ceph_assert(err == 0);
ceph_assert(inc_bl.length());
// set priority cache manager levels if the osdmap is
// being populated for the first time.
if (mon_memory_autotune && pcm == nullptr) {
int r = register_cache_with_pcm();
if (r < 0) {
dout(10) << __func__
<< " Error while registering osdmon caches with pcm."
<< " Proceeding without cache auto tuning."
<< dendl;
}
}
dout(7) << "update_from_paxos applying incremental " << osdmap.epoch+1
<< dendl;
OSDMap::Incremental inc(inc_bl);
err = osdmap.apply_incremental(inc);
ceph_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
ceph_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;
dout(20) << __func__ << " my (bad) full osdmap:\n";
JSONFormatter jf(true);
jf.dump_object("osdmap", osdmap);
jf.flush(*_dout);
*_dout << "\nhexdump:\n";
full_bl.hexdump(*_dout);
*_dout << dendl;
osdmap = OSDMap();
osdmap.decode(orig_full_bl);
dout(20) << __func__ << " canonical full osdmap:\n";
JSONFormatter jf(true);
jf.dump_object("osdmap", osdmap);
jf.flush(*_dout);
*_dout << "\nhexdump:\n";
orig_full_bl.hexdump(*_dout);
*_dout << dendl;
}
} else {
ceph_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;
}
for (const auto [osd, state] : inc.new_state) {
if (state & CEPH_OSD_UP) {
// could be marked up *or* down, but we're too lazy to check which
last_osd_report.erase(osd);
}
if (state & CEPH_OSD_OUT) {
// could be marked in *or* out, but we can safely drop it
osd_epochs.erase(osd);
}
}
for (const auto [osd, weight] : inc.new_weight) {
if (weight == CEPH_OSD_OUT) {
// manually marked out, so drop it
osd_epochs.erase(osd);
}
}
}
if (t) {
mon.store->apply_transaction(t);
}
bool marked_osd_down = false;
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();
marked_osd_down = true;
}
} 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?
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();
}
if (osdmap.stretch_mode_enabled) {
dout(20) << "Stretch mode enabled in this map" << dendl;
mon.try_engage_stretch_mode();
if (osdmap.degraded_stretch_mode) {
dout(20) << "Degraded stretch mode set in this map" << dendl;
if (!osdmap.recovering_stretch_mode) {
mon.set_degraded_stretch_mode();
if (prev_num_up_osd < osdmap.num_up_osd &&
(osdmap.num_up_osd / (double)osdmap.num_osd) >
cct->_conf.get_val<double>("mon_stretch_cluster_recovery_ratio")) {
// TODO: This works for 2-site clusters when the OSD maps are appropriately
// trimmed and everything is "normal" but not if you have a lot of out OSDs
// you're ignoring or in some really degenerate failure cases
dout(10) << "Enabling recovery stretch mode in this map" << dendl;
mon.go_recovery_stretch_mode();
}
} else {
mon.set_recovery_stretch_mode();
}
} else {
mon.set_healthy_stretch_mode();
}
if (marked_osd_down &&
(!osdmap.degraded_stretch_mode || osdmap.recovering_stretch_mode)) {
dout(20) << "Checking degraded stretch mode due to osd changes" << dendl;
mon.maybe_go_degraded_stretch_mode();
}
}
}
int OSDMonitor::register_cache_with_pcm()
{
if (mon_memory_target <= 0 || mon_memory_min <= 0) {
derr << __func__ << " Invalid memory size specified for mon caches."
<< " Caches will not be auto-tuned."
<< dendl;
return -EINVAL;
}
uint64_t base = mon_memory_base;
double fragmentation = mon_memory_fragmentation;
// For calculating total target memory, consider rocksdb cache size.
uint64_t target = mon_memory_target;
uint64_t min = mon_memory_min;
uint64_t max = min;
// Apply the same logic as in bluestore to set the max amount
// of memory to use for cache. Assume base memory for OSDMaps
// and then add in some overhead for fragmentation.
uint64_t ltarget = (1.0 - fragmentation) * target;
if (ltarget > base + min) {
max = ltarget - base;
}
rocksdb_binned_kv_cache = mon.store->get_priority_cache();
if (!rocksdb_binned_kv_cache) {
derr << __func__ << " not using rocksdb" << dendl;