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OSD.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 <[email protected]>
* Copyright (C) 2017 OVH
*
* 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 "acconfig.h"
#include <cctype>
#include <fstream>
#include <iostream>
#include <iterator>
#include <unistd.h>
#include <sys/stat.h>
#include <signal.h>
#include <time.h>
#include <boost/scoped_ptr.hpp>
#include <boost/range/adaptor/reversed.hpp>
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef HAVE_SYS_MOUNT_H
#include <sys/mount.h>
#endif
#include "osd/PG.h"
#include "osd/scrub_machine.h"
#include "osd/pg_scrubber.h"
#include "include/types.h"
#include "include/compat.h"
#include "include/random.h"
#include "OSD.h"
#include "OSDMap.h"
#include "Watch.h"
#include "osdc/Objecter.h"
#include "common/errno.h"
#include "common/ceph_argparse.h"
#include "common/ceph_releases.h"
#include "common/ceph_time.h"
#include "common/version.h"
#include "common/async/blocked_completion.h"
#include "common/pick_address.h"
#include "common/blkdev.h"
#include "common/numa.h"
#include "os/ObjectStore.h"
#ifdef HAVE_LIBFUSE
#include "os/FuseStore.h"
#endif
#include "PrimaryLogPG.h"
#include "msg/Messenger.h"
#include "msg/Message.h"
#include "mon/MonClient.h"
#include "messages/MLog.h"
#include "messages/MGenericMessage.h"
#include "messages/MOSDPing.h"
#include "messages/MOSDFailure.h"
#include "messages/MOSDMarkMeDown.h"
#include "messages/MOSDMarkMeDead.h"
#include "messages/MOSDFull.h"
#include "messages/MOSDOp.h"
#include "messages/MOSDOpReply.h"
#include "messages/MOSDBackoff.h"
#include "messages/MOSDBeacon.h"
#include "messages/MOSDRepOp.h"
#include "messages/MOSDRepOpReply.h"
#include "messages/MOSDBoot.h"
#include "messages/MOSDPGTemp.h"
#include "messages/MOSDPGReadyToMerge.h"
#include "messages/MOSDMap.h"
#include "messages/MMonGetOSDMap.h"
#include "messages/MOSDPGNotify.h"
#include "messages/MOSDPGNotify2.h"
#include "messages/MOSDPGQuery2.h"
#include "messages/MOSDPGLog.h"
#include "messages/MOSDPGRemove.h"
#include "messages/MOSDPGInfo.h"
#include "messages/MOSDPGInfo2.h"
#include "messages/MOSDPGCreate.h"
#include "messages/MOSDPGCreate2.h"
#include "messages/MBackfillReserve.h"
#include "messages/MRecoveryReserve.h"
#include "messages/MOSDForceRecovery.h"
#include "messages/MOSDECSubOpWrite.h"
#include "messages/MOSDECSubOpWriteReply.h"
#include "messages/MOSDECSubOpRead.h"
#include "messages/MOSDECSubOpReadReply.h"
#include "messages/MOSDPGCreated.h"
#include "messages/MOSDPGUpdateLogMissing.h"
#include "messages/MOSDPGUpdateLogMissingReply.h"
#include "messages/MOSDPeeringOp.h"
#include "messages/MOSDAlive.h"
#include "messages/MOSDScrub.h"
#include "messages/MOSDScrub2.h"
#include "messages/MOSDRepScrub.h"
#include "messages/MCommand.h"
#include "messages/MCommandReply.h"
#include "messages/MPGStats.h"
#include "messages/MWatchNotify.h"
#include "messages/MOSDPGPush.h"
#include "messages/MOSDPGPushReply.h"
#include "messages/MOSDPGPull.h"
#include "messages/MMonGetPurgedSnaps.h"
#include "messages/MMonGetPurgedSnapsReply.h"
#include "common/perf_counters.h"
#include "common/Timer.h"
#include "common/LogClient.h"
#include "common/AsyncReserver.h"
#include "common/HeartbeatMap.h"
#include "common/admin_socket.h"
#include "common/ceph_context.h"
#include "global/signal_handler.h"
#include "global/pidfile.h"
#include "include/color.h"
#include "perfglue/cpu_profiler.h"
#include "perfglue/heap_profiler.h"
#include "osd/ClassHandler.h"
#include "osd/OpRequest.h"
#include "auth/AuthAuthorizeHandler.h"
#include "auth/RotatingKeyRing.h"
#include "objclass/objclass.h"
#include "common/cmdparse.h"
#include "include/str_list.h"
#include "include/util.h"
#include "include/ceph_assert.h"
#include "common/config.h"
#include "common/EventTrace.h"
#include "json_spirit/json_spirit_reader.h"
#include "json_spirit/json_spirit_writer.h"
#ifdef WITH_LTTNG
#define TRACEPOINT_DEFINE
#define TRACEPOINT_PROBE_DYNAMIC_LINKAGE
#include "tracing/osd.h"
#undef TRACEPOINT_PROBE_DYNAMIC_LINKAGE
#undef TRACEPOINT_DEFINE
#else
#define tracepoint(...)
#endif
#ifdef HAVE_JAEGER
#include "common/tracer.h"
#endif
#define dout_context cct
#define dout_subsys ceph_subsys_osd
#undef dout_prefix
#define dout_prefix _prefix(_dout, whoami, get_osdmap_epoch())
using std::deque;
using std::list;
using std::lock_guard;
using std::make_pair;
using std::make_tuple;
using std::make_unique;
using std::map;
using std::ostream;
using std::ostringstream;
using std::pair;
using std::set;
using std::string;
using std::stringstream;
using std::to_string;
using std::unique_ptr;
using std::vector;
using ceph::bufferlist;
using ceph::bufferptr;
using ceph::decode;
using ceph::encode;
using ceph::fixed_u_to_string;
using ceph::Formatter;
using ceph::heartbeat_handle_d;
using ceph::make_mutex;
using namespace ceph::osd::scheduler;
using TOPNSPC::common::cmd_getval;
static ostream& _prefix(std::ostream* _dout, int whoami, epoch_t epoch) {
return *_dout << "osd." << whoami << " " << epoch << " ";
}
//Initial features in new superblock.
//Features here are also automatically upgraded
CompatSet OSD::get_osd_initial_compat_set() {
CompatSet::FeatureSet ceph_osd_feature_compat;
CompatSet::FeatureSet ceph_osd_feature_ro_compat;
CompatSet::FeatureSet ceph_osd_feature_incompat;
ceph_osd_feature_incompat.insert(CEPH_OSD_FEATURE_INCOMPAT_BASE);
ceph_osd_feature_incompat.insert(CEPH_OSD_FEATURE_INCOMPAT_PGINFO);
ceph_osd_feature_incompat.insert(CEPH_OSD_FEATURE_INCOMPAT_OLOC);
ceph_osd_feature_incompat.insert(CEPH_OSD_FEATURE_INCOMPAT_LEC);
ceph_osd_feature_incompat.insert(CEPH_OSD_FEATURE_INCOMPAT_CATEGORIES);
ceph_osd_feature_incompat.insert(CEPH_OSD_FEATURE_INCOMPAT_HOBJECTPOOL);
ceph_osd_feature_incompat.insert(CEPH_OSD_FEATURE_INCOMPAT_BIGINFO);
ceph_osd_feature_incompat.insert(CEPH_OSD_FEATURE_INCOMPAT_LEVELDBINFO);
ceph_osd_feature_incompat.insert(CEPH_OSD_FEATURE_INCOMPAT_LEVELDBLOG);
ceph_osd_feature_incompat.insert(CEPH_OSD_FEATURE_INCOMPAT_SNAPMAPPER);
ceph_osd_feature_incompat.insert(CEPH_OSD_FEATURE_INCOMPAT_HINTS);
ceph_osd_feature_incompat.insert(CEPH_OSD_FEATURE_INCOMPAT_PGMETA);
ceph_osd_feature_incompat.insert(CEPH_OSD_FEATURE_INCOMPAT_MISSING);
ceph_osd_feature_incompat.insert(CEPH_OSD_FEATURE_INCOMPAT_FASTINFO);
ceph_osd_feature_incompat.insert(CEPH_OSD_FEATURE_INCOMPAT_RECOVERY_DELETES);
ceph_osd_feature_incompat.insert(CEPH_OSD_FEATURE_INCOMPAT_SNAPMAPPER2);
return CompatSet(ceph_osd_feature_compat, ceph_osd_feature_ro_compat,
ceph_osd_feature_incompat);
}
//Features are added here that this OSD supports.
CompatSet OSD::get_osd_compat_set() {
CompatSet compat = get_osd_initial_compat_set();
//Any features here can be set in code, but not in initial superblock
compat.incompat.insert(CEPH_OSD_FEATURE_INCOMPAT_SHARDS);
return compat;
}
OSDService::OSDService(OSD *osd, ceph::async::io_context_pool& poolctx) :
osd(osd),
cct(osd->cct),
whoami(osd->whoami), store(osd->store),
log_client(osd->log_client), clog(osd->clog),
pg_recovery_stats(osd->pg_recovery_stats),
cluster_messenger(osd->cluster_messenger),
client_messenger(osd->client_messenger),
logger(osd->logger),
recoverystate_perf(osd->recoverystate_perf),
monc(osd->monc),
osd_max_object_size(cct->_conf, "osd_max_object_size"),
osd_skip_data_digest(cct->_conf, "osd_skip_data_digest"),
publish_lock{ceph::make_mutex("OSDService::publish_lock")},
pre_publish_lock{ceph::make_mutex("OSDService::pre_publish_lock")},
max_oldest_map(0),
scrubs_local(0),
scrubs_remote(0),
agent_valid_iterator(false),
agent_ops(0),
flush_mode_high_count(0),
agent_active(true),
agent_thread(this),
agent_stop_flag(false),
agent_timer(osd->client_messenger->cct, agent_timer_lock),
last_recalibrate(ceph_clock_now()),
promote_max_objects(0),
promote_max_bytes(0),
poolctx(poolctx),
objecter(make_unique<Objecter>(osd->client_messenger->cct,
osd->objecter_messenger,
osd->monc, poolctx)),
m_objecter_finishers(cct->_conf->osd_objecter_finishers),
watch_timer(osd->client_messenger->cct, watch_lock),
next_notif_id(0),
recovery_request_timer(cct, recovery_request_lock, false),
sleep_timer(cct, sleep_lock, false),
reserver_finisher(cct),
local_reserver(cct, &reserver_finisher, cct->_conf->osd_max_backfills,
cct->_conf->osd_min_recovery_priority),
remote_reserver(cct, &reserver_finisher, cct->_conf->osd_max_backfills,
cct->_conf->osd_min_recovery_priority),
snap_reserver(cct, &reserver_finisher,
cct->_conf->osd_max_trimming_pgs),
recovery_ops_active(0),
recovery_ops_reserved(0),
recovery_paused(false),
map_cache(cct, cct->_conf->osd_map_cache_size),
map_bl_cache(cct->_conf->osd_map_cache_size),
map_bl_inc_cache(cct->_conf->osd_map_cache_size),
cur_state(NONE),
cur_ratio(0), physical_ratio(0),
boot_epoch(0), up_epoch(0), bind_epoch(0)
{
objecter->init();
for (int i = 0; i < m_objecter_finishers; i++) {
ostringstream str;
str << "objecter-finisher-" << i;
auto fin = make_unique<Finisher>(osd->client_messenger->cct, str.str(), "finisher");
objecter_finishers.push_back(std::move(fin));
}
}
#ifdef PG_DEBUG_REFS
void OSDService::add_pgid(spg_t pgid, PG *pg) {
std::lock_guard l(pgid_lock);
if (!pgid_tracker.count(pgid)) {
live_pgs[pgid] = pg;
}
pgid_tracker[pgid]++;
}
void OSDService::remove_pgid(spg_t pgid, PG *pg)
{
std::lock_guard l(pgid_lock);
ceph_assert(pgid_tracker.count(pgid));
ceph_assert(pgid_tracker[pgid] > 0);
pgid_tracker[pgid]--;
if (pgid_tracker[pgid] == 0) {
pgid_tracker.erase(pgid);
live_pgs.erase(pgid);
}
}
void OSDService::dump_live_pgids()
{
std::lock_guard l(pgid_lock);
derr << "live pgids:" << dendl;
for (map<spg_t, int>::const_iterator i = pgid_tracker.cbegin();
i != pgid_tracker.cend();
++i) {
derr << "\t" << *i << dendl;
live_pgs[i->first]->dump_live_ids();
}
}
#endif
ceph::signedspan OSDService::get_mnow()
{
return ceph::mono_clock::now() - osd->startup_time;
}
void OSDService::identify_splits_and_merges(
OSDMapRef old_map,
OSDMapRef new_map,
spg_t pgid,
set<pair<spg_t,epoch_t>> *split_children,
set<pair<spg_t,epoch_t>> *merge_pgs)
{
if (!old_map->have_pg_pool(pgid.pool())) {
return;
}
int old_pgnum = old_map->get_pg_num(pgid.pool());
auto p = osd->pg_num_history.pg_nums.find(pgid.pool());
if (p == osd->pg_num_history.pg_nums.end()) {
return;
}
dout(20) << __func__ << " " << pgid << " e" << old_map->get_epoch()
<< " to e" << new_map->get_epoch()
<< " pg_nums " << p->second << dendl;
deque<spg_t> queue;
queue.push_back(pgid);
set<spg_t> did;
while (!queue.empty()) {
auto cur = queue.front();
queue.pop_front();
did.insert(cur);
unsigned pgnum = old_pgnum;
for (auto q = p->second.lower_bound(old_map->get_epoch());
q != p->second.end() &&
q->first <= new_map->get_epoch();
++q) {
if (pgnum < q->second) {
// split?
if (cur.ps() < pgnum) {
set<spg_t> children;
if (cur.is_split(pgnum, q->second, &children)) {
dout(20) << __func__ << " " << cur << " e" << q->first
<< " pg_num " << pgnum << " -> " << q->second
<< " children " << children << dendl;
for (auto i : children) {
split_children->insert(make_pair(i, q->first));
if (!did.count(i))
queue.push_back(i);
}
}
} else if (cur.ps() < q->second) {
dout(20) << __func__ << " " << cur << " e" << q->first
<< " pg_num " << pgnum << " -> " << q->second
<< " is a child" << dendl;
// normally we'd capture this from the parent, but it's
// possible the parent doesn't exist yet (it will be
// fabricated to allow an intervening merge). note this PG
// as a split child here to be sure we catch it.
split_children->insert(make_pair(cur, q->first));
} else {
dout(20) << __func__ << " " << cur << " e" << q->first
<< " pg_num " << pgnum << " -> " << q->second
<< " is post-split, skipping" << dendl;
}
} else if (merge_pgs) {
// merge?
if (cur.ps() >= q->second) {
if (cur.ps() < pgnum) {
spg_t parent;
if (cur.is_merge_source(pgnum, q->second, &parent)) {
set<spg_t> children;
parent.is_split(q->second, pgnum, &children);
dout(20) << __func__ << " " << cur << " e" << q->first
<< " pg_num " << pgnum << " -> " << q->second
<< " is merge source, target " << parent
<< ", source(s) " << children << dendl;
merge_pgs->insert(make_pair(parent, q->first));
if (!did.count(parent)) {
// queue (and re-scan) parent in case it might not exist yet
// and there are some future splits pending on it
queue.push_back(parent);
}
for (auto c : children) {
merge_pgs->insert(make_pair(c, q->first));
if (!did.count(c))
queue.push_back(c);
}
}
} else {
dout(20) << __func__ << " " << cur << " e" << q->first
<< " pg_num " << pgnum << " -> " << q->second
<< " is beyond old pgnum, skipping" << dendl;
}
} else {
set<spg_t> children;
if (cur.is_split(q->second, pgnum, &children)) {
dout(20) << __func__ << " " << cur << " e" << q->first
<< " pg_num " << pgnum << " -> " << q->second
<< " is merge target, source " << children << dendl;
for (auto c : children) {
merge_pgs->insert(make_pair(c, q->first));
if (!did.count(c))
queue.push_back(c);
}
merge_pgs->insert(make_pair(cur, q->first));
}
}
}
pgnum = q->second;
}
}
}
void OSDService::need_heartbeat_peer_update()
{
osd->need_heartbeat_peer_update();
}
HeartbeatStampsRef OSDService::get_hb_stamps(unsigned peer)
{
std::lock_guard l(hb_stamp_lock);
if (peer >= hb_stamps.size()) {
hb_stamps.resize(peer + 1);
}
if (!hb_stamps[peer]) {
hb_stamps[peer] = ceph::make_ref<HeartbeatStamps>(peer);
}
return hb_stamps[peer];
}
void OSDService::queue_renew_lease(epoch_t epoch, spg_t spgid)
{
osd->enqueue_peering_evt(
spgid,
PGPeeringEventRef(
std::make_shared<PGPeeringEvent>(
epoch, epoch,
RenewLease())));
}
void OSDService::start_shutdown()
{
{
std::lock_guard l(agent_timer_lock);
agent_timer.shutdown();
}
{
std::lock_guard l(sleep_lock);
sleep_timer.shutdown();
}
{
std::lock_guard l(recovery_request_lock);
recovery_request_timer.shutdown();
}
}
void OSDService::shutdown_reserver()
{
reserver_finisher.wait_for_empty();
reserver_finisher.stop();
}
void OSDService::shutdown()
{
mono_timer.suspend();
{
std::lock_guard l(watch_lock);
watch_timer.shutdown();
}
objecter->shutdown();
for (auto& f : objecter_finishers) {
f->wait_for_empty();
f->stop();
}
publish_map(OSDMapRef());
next_osdmap = OSDMapRef();
}
void OSDService::init()
{
reserver_finisher.start();
for (auto& f : objecter_finishers) {
f->start();
}
objecter->set_client_incarnation(0);
// deprioritize objecter in daemonperf output
objecter->get_logger()->set_prio_adjust(-3);
watch_timer.init();
agent_timer.init();
mono_timer.resume();
agent_thread.create("osd_srv_agent");
if (cct->_conf->osd_recovery_delay_start)
defer_recovery(cct->_conf->osd_recovery_delay_start);
}
void OSDService::final_init()
{
objecter->start(osdmap.get());
}
void OSDService::activate_map()
{
// wake/unwake the tiering agent
std::lock_guard l{agent_lock};
agent_active =
!osdmap->test_flag(CEPH_OSDMAP_NOTIERAGENT) &&
osd->is_active();
agent_cond.notify_all();
}
void OSDService::request_osdmap_update(epoch_t e)
{
osd->osdmap_subscribe(e, false);
}
class AgentTimeoutCB : public Context {
PGRef pg;
public:
explicit AgentTimeoutCB(PGRef _pg) : pg(_pg) {}
void finish(int) override {
pg->agent_choose_mode_restart();
}
};
void OSDService::agent_entry()
{
dout(10) << __func__ << " start" << dendl;
std::unique_lock agent_locker{agent_lock};
while (!agent_stop_flag) {
if (agent_queue.empty()) {
dout(20) << __func__ << " empty queue" << dendl;
agent_cond.wait(agent_locker);
continue;
}
uint64_t level = agent_queue.rbegin()->first;
set<PGRef>& top = agent_queue.rbegin()->second;
dout(10) << __func__
<< " tiers " << agent_queue.size()
<< ", top is " << level
<< " with pgs " << top.size()
<< ", ops " << agent_ops << "/"
<< cct->_conf->osd_agent_max_ops
<< (agent_active ? " active" : " NOT ACTIVE")
<< dendl;
dout(20) << __func__ << " oids " << agent_oids << dendl;
int max = cct->_conf->osd_agent_max_ops - agent_ops;
int agent_flush_quota = max;
if (!flush_mode_high_count)
agent_flush_quota = cct->_conf->osd_agent_max_low_ops - agent_ops;
if (agent_flush_quota <= 0 || top.empty() || !agent_active) {
agent_cond.wait(agent_locker);
continue;
}
if (!agent_valid_iterator || agent_queue_pos == top.end()) {
agent_queue_pos = top.begin();
agent_valid_iterator = true;
}
PGRef pg = *agent_queue_pos;
dout(10) << "high_count " << flush_mode_high_count
<< " agent_ops " << agent_ops
<< " flush_quota " << agent_flush_quota << dendl;
agent_locker.unlock();
if (!pg->agent_work(max, agent_flush_quota)) {
dout(10) << __func__ << " " << pg->pg_id
<< " no agent_work, delay for " << cct->_conf->osd_agent_delay_time
<< " seconds" << dendl;
logger->inc(l_osd_tier_delay);
// Queue a timer to call agent_choose_mode for this pg in 5 seconds
std::lock_guard timer_locker{agent_timer_lock};
Context *cb = new AgentTimeoutCB(pg);
agent_timer.add_event_after(cct->_conf->osd_agent_delay_time, cb);
}
agent_locker.lock();
}
dout(10) << __func__ << " finish" << dendl;
}
void OSDService::agent_stop()
{
{
std::lock_guard l(agent_lock);
// By this time all ops should be cancelled
ceph_assert(agent_ops == 0);
// By this time all PGs are shutdown and dequeued
if (!agent_queue.empty()) {
set<PGRef>& top = agent_queue.rbegin()->second;
derr << "agent queue not empty, for example " << (*top.begin())->get_pgid() << dendl;
ceph_abort_msg("agent queue not empty");
}
agent_stop_flag = true;
agent_cond.notify_all();
}
agent_thread.join();
}
// -------------------------------------
void OSDService::promote_throttle_recalibrate()
{
utime_t now = ceph_clock_now();
double dur = now - last_recalibrate;
last_recalibrate = now;
unsigned prob = promote_probability_millis;
uint64_t target_obj_sec = cct->_conf->osd_tier_promote_max_objects_sec;
uint64_t target_bytes_sec = cct->_conf->osd_tier_promote_max_bytes_sec;
unsigned min_prob = 1;
uint64_t attempts, obj, bytes;
promote_counter.sample_and_attenuate(&attempts, &obj, &bytes);
dout(10) << __func__ << " " << attempts << " attempts, promoted "
<< obj << " objects and " << byte_u_t(bytes) << "; target "
<< target_obj_sec << " obj/sec or "
<< byte_u_t(target_bytes_sec) << "/sec"
<< dendl;
// calculate what the probability *should* be, given the targets
unsigned new_prob;
if (attempts && dur > 0) {
uint64_t avg_size = 1;
if (obj)
avg_size = std::max<uint64_t>(bytes / obj, 1);
unsigned po = (double)target_obj_sec * dur * 1000.0 / (double)attempts;
unsigned pb = (double)target_bytes_sec / (double)avg_size * dur * 1000.0
/ (double)attempts;
dout(20) << __func__ << " po " << po << " pb " << pb << " avg_size "
<< avg_size << dendl;
if (target_obj_sec && target_bytes_sec)
new_prob = std::min(po, pb);
else if (target_obj_sec)
new_prob = po;
else if (target_bytes_sec)
new_prob = pb;
else
new_prob = 1000;
} else {
new_prob = 1000;
}
dout(20) << __func__ << " new_prob " << new_prob << dendl;
// correct for persistent skew between target rate and actual rate, adjust
double ratio = 1.0;
unsigned actual = 0;
if (attempts && obj) {
actual = obj * 1000 / attempts;
ratio = (double)actual / (double)prob;
new_prob = (double)new_prob / ratio;
}
new_prob = std::max(new_prob, min_prob);
new_prob = std::min(new_prob, 1000u);
// adjust
prob = (prob + new_prob) / 2;
prob = std::max(prob, min_prob);
prob = std::min(prob, 1000u);
dout(10) << __func__ << " actual " << actual
<< ", actual/prob ratio " << ratio
<< ", adjusted new_prob " << new_prob
<< ", prob " << promote_probability_millis << " -> " << prob
<< dendl;
promote_probability_millis = prob;
// set hard limits for this interval to mitigate stampedes
promote_max_objects = target_obj_sec * osd->OSD_TICK_INTERVAL * 2;
promote_max_bytes = target_bytes_sec * osd->OSD_TICK_INTERVAL * 2;
}
// -------------------------------------
float OSDService::get_failsafe_full_ratio()
{
float full_ratio = cct->_conf->osd_failsafe_full_ratio;
if (full_ratio > 1.0) full_ratio /= 100.0;
return full_ratio;
}
OSDService::s_names OSDService::recalc_full_state(float ratio, float pratio, string &inject)
{
// The OSDMap ratios take precendence. So if the failsafe is .95 and
// the admin sets the cluster full to .96, the failsafe moves up to .96
// too. (Not that having failsafe == full is ideal, but it's better than
// dropping writes before the clusters appears full.)
OSDMapRef osdmap = get_osdmap();
if (!osdmap || osdmap->get_epoch() == 0) {
return NONE;
}
float nearfull_ratio = osdmap->get_nearfull_ratio();
float backfillfull_ratio = std::max(osdmap->get_backfillfull_ratio(), nearfull_ratio);
float full_ratio = std::max(osdmap->get_full_ratio(), backfillfull_ratio);
float failsafe_ratio = std::max(get_failsafe_full_ratio(), full_ratio);
if (osdmap->require_osd_release < ceph_release_t::luminous) {
// use the failsafe for nearfull and full; the mon isn't using the
// flags anyway because we're mid-upgrade.
full_ratio = failsafe_ratio;
backfillfull_ratio = failsafe_ratio;
nearfull_ratio = failsafe_ratio;
} else if (full_ratio <= 0 ||
backfillfull_ratio <= 0 ||
nearfull_ratio <= 0) {
derr << __func__ << " full_ratio, backfillfull_ratio or nearfull_ratio is <= 0" << dendl;
// use failsafe flag. ick. the monitor did something wrong or the user
// did something stupid.
full_ratio = failsafe_ratio;
backfillfull_ratio = failsafe_ratio;
nearfull_ratio = failsafe_ratio;
}
if (injectfull_state > NONE && injectfull) {
inject = "(Injected)";
return injectfull_state;
} else if (pratio > failsafe_ratio) {
return FAILSAFE;
} else if (ratio > full_ratio) {
return FULL;
} else if (ratio > backfillfull_ratio) {
return BACKFILLFULL;
} else if (pratio > nearfull_ratio) {
return NEARFULL;
}
return NONE;
}
void OSDService::check_full_status(float ratio, float pratio)
{
std::lock_guard l(full_status_lock);
cur_ratio = ratio;
physical_ratio = pratio;
string inject;
s_names new_state;
new_state = recalc_full_state(ratio, pratio, inject);
dout(20) << __func__ << " cur ratio " << ratio
<< ", physical ratio " << pratio
<< ", new state " << get_full_state_name(new_state)
<< " " << inject
<< dendl;
// warn
if (cur_state != new_state) {
dout(10) << __func__ << " " << get_full_state_name(cur_state)
<< " -> " << get_full_state_name(new_state) << dendl;
if (new_state == FAILSAFE) {
clog->error() << "full status failsafe engaged, dropping updates, now "
<< (int)roundf(ratio * 100) << "% full";
} else if (cur_state == FAILSAFE) {
clog->error() << "full status failsafe disengaged, no longer dropping "
<< "updates, now " << (int)roundf(ratio * 100) << "% full";
}
cur_state = new_state;
}
}
bool OSDService::need_fullness_update()
{
OSDMapRef osdmap = get_osdmap();
s_names cur = NONE;
if (osdmap->exists(whoami)) {
if (osdmap->get_state(whoami) & CEPH_OSD_FULL) {
cur = FULL;
} else if (osdmap->get_state(whoami) & CEPH_OSD_BACKFILLFULL) {
cur = BACKFILLFULL;
} else if (osdmap->get_state(whoami) & CEPH_OSD_NEARFULL) {
cur = NEARFULL;
}
}
s_names want = NONE;
if (is_full())
want = FULL;
else if (is_backfillfull())
want = BACKFILLFULL;
else if (is_nearfull())
want = NEARFULL;
return want != cur;
}
bool OSDService::_check_inject_full(DoutPrefixProvider *dpp, s_names type) const
{
if (injectfull && injectfull_state >= type) {
// injectfull is either a count of the number of times to return failsafe full
// or if -1 then always return full
if (injectfull > 0)
--injectfull;
ldpp_dout(dpp, 10) << __func__ << " Injected " << get_full_state_name(type) << " OSD ("
<< (injectfull < 0 ? "set" : std::to_string(injectfull)) << ")"
<< dendl;
return true;
}
return false;
}
bool OSDService::_check_full(DoutPrefixProvider *dpp, s_names type) const
{
std::lock_guard l(full_status_lock);
if (_check_inject_full(dpp, type))
return true;
if (cur_state >= type)
ldpp_dout(dpp, 10) << __func__ << " current usage is " << cur_ratio
<< " physical " << physical_ratio << dendl;
return cur_state >= type;
}
bool OSDService::_tentative_full(DoutPrefixProvider *dpp, s_names type, uint64_t adjust_used, osd_stat_t adjusted_stat)
{
ldpp_dout(dpp, 20) << __func__ << " type " << get_full_state_name(type) << " adjust_used " << (adjust_used >> 10) << "KiB" << dendl;
{
std::lock_guard l(full_status_lock);
if (_check_inject_full(dpp, type)) {
return true;
}
}
float pratio;
float ratio = compute_adjusted_ratio(adjusted_stat, &pratio, adjust_used);
string notused;
s_names tentative_state = recalc_full_state(ratio, pratio, notused);
if (tentative_state >= type)
ldpp_dout(dpp, 10) << __func__ << " tentative usage is " << ratio << dendl;
return tentative_state >= type;
}
bool OSDService::check_failsafe_full(DoutPrefixProvider *dpp) const
{
return _check_full(dpp, FAILSAFE);
}
bool OSDService::check_full(DoutPrefixProvider *dpp) const
{
return _check_full(dpp, FULL);
}
bool OSDService::tentative_backfill_full(DoutPrefixProvider *dpp, uint64_t adjust_used, osd_stat_t stats)
{
return _tentative_full(dpp, BACKFILLFULL, adjust_used, stats);
}
bool OSDService::check_backfill_full(DoutPrefixProvider *dpp) const
{
return _check_full(dpp, BACKFILLFULL);
}
bool OSDService::check_nearfull(DoutPrefixProvider *dpp) const
{
return _check_full(dpp, NEARFULL);
}
bool OSDService::is_failsafe_full() const
{
std::lock_guard l(full_status_lock);
return cur_state == FAILSAFE;
}
bool OSDService::is_full() const
{
std::lock_guard l(full_status_lock);
return cur_state >= FULL;
}
bool OSDService::is_backfillfull() const
{
std::lock_guard l(full_status_lock);
return cur_state >= BACKFILLFULL;
}
bool OSDService::is_nearfull() const
{
std::lock_guard l(full_status_lock);
return cur_state >= NEARFULL;
}
void OSDService::set_injectfull(s_names type, int64_t count)
{
std::lock_guard l(full_status_lock);
injectfull_state = type;
injectfull = count;
}
void OSDService::set_statfs(const struct store_statfs_t &stbuf,
osd_alert_list_t& alerts)
{
uint64_t bytes = stbuf.total;
uint64_t avail = stbuf.available;
uint64_t used = stbuf.get_used_raw();
// For testing fake statfs values so it doesn't matter if all
// OSDs are using the same partition.
if (cct->_conf->fake_statfs_for_testing) {
uint64_t total_num_bytes = 0;
vector<PGRef> pgs;
osd->_get_pgs(&pgs);
for (auto p : pgs) {
total_num_bytes += p->get_stats_num_bytes();
}
bytes = cct->_conf->fake_statfs_for_testing;
if (total_num_bytes < bytes)
avail = bytes - total_num_bytes;
else
avail = 0;
dout(0) << __func__ << " fake total " << cct->_conf->fake_statfs_for_testing
<< " adjust available " << avail
<< dendl;
used = bytes - avail;
}
logger->set(l_osd_stat_bytes, bytes);
logger->set(l_osd_stat_bytes_used, used);
logger->set(l_osd_stat_bytes_avail, avail);
std::lock_guard l(stat_lock);
osd_stat.statfs = stbuf;
osd_stat.os_alerts.clear();
osd_stat.os_alerts[whoami].swap(alerts);
if (cct->_conf->fake_statfs_for_testing) {
osd_stat.statfs.total = bytes;
osd_stat.statfs.available = avail;
// For testing don't want used to go negative, so clear reserved
osd_stat.statfs.internally_reserved = 0;
}
}
osd_stat_t OSDService::set_osd_stat(vector<int>& hb_peers,
int num_pgs)
{
utime_t now = ceph_clock_now();
auto stale_time = g_conf().get_val<int64_t>("osd_mon_heartbeat_stat_stale");
std::lock_guard l(stat_lock);
osd_stat.hb_peers.swap(hb_peers);
osd->op_tracker.get_age_ms_histogram(&osd_stat.op_queue_age_hist);