/
osd_types.cc
5060 lines (4671 loc) · 133 KB
/
osd_types.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) 2011 New Dream Network
* Copyright (C) 2013,2014 Cloudwatt <libre.licensing@cloudwatt.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 "osd_types.h"
#include "include/ceph_features.h"
extern "C" {
#include "crush/hash.h"
}
#include "PG.h"
#include "OSDMap.h"
#include "PGBackend.h"
const char *ceph_osd_flag_name(unsigned flag)
{
switch (flag) {
case CEPH_OSD_FLAG_ACK: return "ack";
case CEPH_OSD_FLAG_ONNVRAM: return "onnvram";
case CEPH_OSD_FLAG_ONDISK: return "ondisk";
case CEPH_OSD_FLAG_RETRY: return "retry";
case CEPH_OSD_FLAG_READ: return "read";
case CEPH_OSD_FLAG_WRITE: return "write";
case CEPH_OSD_FLAG_ORDERSNAP: return "ordersnap";
case CEPH_OSD_FLAG_PEERSTAT_OLD: return "peerstat_old";
case CEPH_OSD_FLAG_BALANCE_READS: return "balance_reads";
case CEPH_OSD_FLAG_PARALLELEXEC: return "parallelexec";
case CEPH_OSD_FLAG_PGOP: return "pgop";
case CEPH_OSD_FLAG_EXEC: return "exec";
case CEPH_OSD_FLAG_EXEC_PUBLIC: return "exec_public";
case CEPH_OSD_FLAG_LOCALIZE_READS: return "localize_reads";
case CEPH_OSD_FLAG_RWORDERED: return "rwordered";
case CEPH_OSD_FLAG_IGNORE_CACHE: return "ignore_cache";
case CEPH_OSD_FLAG_SKIPRWLOCKS: return "skiprwlocks";
case CEPH_OSD_FLAG_IGNORE_OVERLAY: return "ignore_overlay";
case CEPH_OSD_FLAG_FLUSH: return "flush";
case CEPH_OSD_FLAG_MAP_SNAP_CLONE: return "map_snap_clone";
case CEPH_OSD_FLAG_ENFORCE_SNAPC: return "enforce_snapc";
case CEPH_OSD_FLAG_REDIRECTED: return "redirected";
case CEPH_OSD_FLAG_KNOWN_REDIR: return "known_if_redirected";
default: return "???";
}
}
string ceph_osd_flag_string(unsigned flags)
{
string s;
for (unsigned i=0; i<32; ++i) {
if (flags & (1u<<i)) {
if (s.length())
s += "+";
s += ceph_osd_flag_name(1u << i);
}
}
if (s.length())
return s;
return string("-");
}
const char * ceph_osd_op_flag_name(unsigned flag)
{
const char *name;
switch(flag) {
case CEPH_OSD_OP_FLAG_EXCL:
name = "excl";
break;
case CEPH_OSD_OP_FLAG_FAILOK:
name = "failok";
break;
case CEPH_OSD_OP_FLAG_FADVISE_RANDOM:
name = "fadvise_random";
break;
case CEPH_OSD_OP_FLAG_FADVISE_SEQUENTIAL:
name = "fadvise_sequential";
break;
case CEPH_OSD_OP_FLAG_FADVISE_WILLNEED:
name = "favise_willneed";
break;
case CEPH_OSD_OP_FLAG_FADVISE_DONTNEED:
name = "fadvise_dontneed";
break;
case CEPH_OSD_OP_FLAG_FADVISE_NOCACHE:
name = "fadvise_nocache";
break;
default:
name = "???";
};
return name;
}
string ceph_osd_op_flag_string(unsigned flags)
{
string s;
for (unsigned i=0; i<31; ++i) {
if (flags & (1u<<i)) {
if (s.length())
s += "+";
s += ceph_osd_op_flag_name(1u << i);
}
}
if (s.length())
return s;
return string("-");
}
void pg_shard_t::encode(bufferlist &bl) const
{
ENCODE_START(1, 1, bl);
::encode(osd, bl);
::encode(shard, bl);
ENCODE_FINISH(bl);
}
void pg_shard_t::decode(bufferlist::iterator &bl)
{
DECODE_START(1, bl);
::decode(osd, bl);
::decode(shard, bl);
DECODE_FINISH(bl);
}
ostream &operator<<(ostream &lhs, const pg_shard_t &rhs)
{
if (rhs.is_undefined())
return lhs << "?";
if (rhs.shard == shard_id_t::NO_SHARD)
return lhs << rhs.osd;
return lhs << rhs.osd << '(' << (unsigned)(rhs.shard) << ')';
}
// -- osd_reqid_t --
void osd_reqid_t::encode(bufferlist &bl) const
{
ENCODE_START(2, 2, bl);
::encode(name, bl);
::encode(tid, bl);
::encode(inc, bl);
ENCODE_FINISH(bl);
}
void osd_reqid_t::decode(bufferlist::iterator &bl)
{
DECODE_START_LEGACY_COMPAT_LEN(2, 2, 2, bl);
::decode(name, bl);
::decode(tid, bl);
::decode(inc, bl);
DECODE_FINISH(bl);
}
void osd_reqid_t::dump(Formatter *f) const
{
f->dump_stream("name") << name;
f->dump_int("inc", inc);
f->dump_unsigned("tid", tid);
}
void osd_reqid_t::generate_test_instances(list<osd_reqid_t*>& o)
{
o.push_back(new osd_reqid_t);
o.push_back(new osd_reqid_t(entity_name_t::CLIENT(123), 1, 45678));
}
// -- object_locator_t --
void object_locator_t::encode(bufferlist& bl) const
{
// verify that nobody's corrupted the locator
assert(hash == -1 || key.empty());
__u8 encode_compat = 3;
ENCODE_START(6, encode_compat, bl);
::encode(pool, bl);
int32_t preferred = -1; // tell old code there is no preferred osd (-1).
::encode(preferred, bl);
::encode(key, bl);
::encode(nspace, bl);
::encode(hash, bl);
if (hash != -1)
encode_compat = MAX(encode_compat, 6); // need to interpret the hash
ENCODE_FINISH_NEW_COMPAT(bl, encode_compat);
}
void object_locator_t::decode(bufferlist::iterator& p)
{
DECODE_START_LEGACY_COMPAT_LEN(6, 3, 3, p);
if (struct_v < 2) {
int32_t op;
::decode(op, p);
pool = op;
int16_t pref;
::decode(pref, p);
} else {
::decode(pool, p);
int32_t preferred;
::decode(preferred, p);
}
::decode(key, p);
if (struct_v >= 5)
::decode(nspace, p);
if (struct_v >= 6)
::decode(hash, p);
else
hash = -1;
DECODE_FINISH(p);
// verify that nobody's corrupted the locator
assert(hash == -1 || key.empty());
}
void object_locator_t::dump(Formatter *f) const
{
f->dump_int("pool", pool);
f->dump_string("key", key);
f->dump_string("namespace", nspace);
f->dump_int("hash", hash);
}
void object_locator_t::generate_test_instances(list<object_locator_t*>& o)
{
o.push_back(new object_locator_t);
o.push_back(new object_locator_t(123));
o.push_back(new object_locator_t(123, 876));
o.push_back(new object_locator_t(1, "n2"));
o.push_back(new object_locator_t(1234, "", "key"));
o.push_back(new object_locator_t(12, "n1", "key2"));
}
// -- request_redirect_t --
void request_redirect_t::encode(bufferlist& bl) const
{
ENCODE_START(1, 1, bl);
::encode(redirect_locator, bl);
::encode(redirect_object, bl);
::encode(osd_instructions, bl);
ENCODE_FINISH(bl);
}
void request_redirect_t::decode(bufferlist::iterator& bl)
{
DECODE_START(1, bl);
::decode(redirect_locator, bl);
::decode(redirect_object, bl);
::decode(osd_instructions, bl);
DECODE_FINISH(bl);
}
void request_redirect_t::dump(Formatter *f) const
{
f->dump_string("object", redirect_object);
f->open_object_section("locator");
redirect_locator.dump(f);
f->close_section(); // locator
}
void request_redirect_t::generate_test_instances(list<request_redirect_t*>& o)
{
object_locator_t loc(1, "redir_obj");
o.push_back(new request_redirect_t());
o.push_back(new request_redirect_t(loc, 0));
o.push_back(new request_redirect_t(loc, "redir_obj"));
o.push_back(new request_redirect_t(loc));
}
void objectstore_perf_stat_t::dump(Formatter *f) const
{
f->dump_unsigned("commit_latency_ms", filestore_commit_latency);
f->dump_unsigned("apply_latency_ms", filestore_apply_latency);
}
void objectstore_perf_stat_t::encode(bufferlist &bl) const
{
ENCODE_START(1, 1, bl);
::encode(filestore_commit_latency, bl);
::encode(filestore_apply_latency, bl);
ENCODE_FINISH(bl);
}
void objectstore_perf_stat_t::decode(bufferlist::iterator &bl)
{
DECODE_START(1, bl);
::decode(filestore_commit_latency, bl);
::decode(filestore_apply_latency, bl);
DECODE_FINISH(bl);
}
void objectstore_perf_stat_t::generate_test_instances(std::list<objectstore_perf_stat_t*>& o)
{
o.push_back(new objectstore_perf_stat_t());
o.push_back(new objectstore_perf_stat_t());
o.back()->filestore_commit_latency = 20;
o.back()->filestore_apply_latency = 30;
}
// -- osd_stat_t --
void osd_stat_t::dump(Formatter *f) const
{
f->dump_unsigned("kb", kb);
f->dump_unsigned("kb_used", kb_used);
f->dump_unsigned("kb_avail", kb_avail);
f->open_array_section("hb_in");
for (vector<int>::const_iterator p = hb_in.begin(); p != hb_in.end(); ++p)
f->dump_int("osd", *p);
f->close_section();
f->open_array_section("hb_out");
for (vector<int>::const_iterator p = hb_out.begin(); p != hb_out.end(); ++p)
f->dump_int("osd", *p);
f->close_section();
f->dump_int("snap_trim_queue_len", snap_trim_queue_len);
f->dump_int("num_snap_trimming", num_snap_trimming);
f->open_object_section("op_queue_age_hist");
op_queue_age_hist.dump(f);
f->close_section();
f->open_object_section("fs_perf_stat");
fs_perf_stat.dump(f);
f->close_section();
}
void osd_stat_t::encode(bufferlist &bl) const
{
ENCODE_START(4, 2, bl);
::encode(kb, bl);
::encode(kb_used, bl);
::encode(kb_avail, bl);
::encode(snap_trim_queue_len, bl);
::encode(num_snap_trimming, bl);
::encode(hb_in, bl);
::encode(hb_out, bl);
::encode(op_queue_age_hist, bl);
::encode(fs_perf_stat, bl);
ENCODE_FINISH(bl);
}
void osd_stat_t::decode(bufferlist::iterator &bl)
{
DECODE_START_LEGACY_COMPAT_LEN(4, 2, 2, bl);
::decode(kb, bl);
::decode(kb_used, bl);
::decode(kb_avail, bl);
::decode(snap_trim_queue_len, bl);
::decode(num_snap_trimming, bl);
::decode(hb_in, bl);
::decode(hb_out, bl);
if (struct_v >= 3)
::decode(op_queue_age_hist, bl);
if (struct_v >= 4)
::decode(fs_perf_stat, bl);
DECODE_FINISH(bl);
}
void osd_stat_t::generate_test_instances(std::list<osd_stat_t*>& o)
{
o.push_back(new osd_stat_t);
o.push_back(new osd_stat_t);
o.back()->kb = 1;
o.back()->kb_used = 2;
o.back()->kb_avail = 3;
o.back()->hb_in.push_back(5);
o.back()->hb_in.push_back(6);
o.back()->hb_out = o.back()->hb_in;
o.back()->hb_out.push_back(7);
o.back()->snap_trim_queue_len = 8;
o.back()->num_snap_trimming = 99;
}
// -- pg_t --
int pg_t::print(char *o, int maxlen) const
{
if (preferred() >= 0)
return snprintf(o, maxlen, "%llu.%xp%d", (unsigned long long)pool(), ps(), preferred());
else
return snprintf(o, maxlen, "%llu.%x", (unsigned long long)pool(), ps());
}
bool pg_t::parse(const char *s)
{
uint64_t ppool;
uint32_t pseed;
int32_t pref;
int r = sscanf(s, "%llu.%xp%d", (long long unsigned *)&ppool, &pseed, &pref);
if (r < 2)
return false;
m_pool = ppool;
m_seed = pseed;
if (r == 3)
m_preferred = pref;
else
m_preferred = -1;
return true;
}
bool spg_t::parse(const char *s)
{
pgid.set_preferred(-1);
shard = shard_id_t::NO_SHARD;
uint64_t ppool;
uint32_t pseed;
int32_t pref;
uint32_t pshard;
int r = sscanf(s, "%llu.%x", (long long unsigned *)&ppool, &pseed);
if (r < 2)
return false;
pgid.set_pool(ppool);
pgid.set_ps(pseed);
const char *p = strchr(s, 'p');
if (p) {
r = sscanf(p, "p%d", &pref);
if (r == 1) {
pgid.set_preferred(pref);
} else {
return false;
}
}
p = strchr(s, 's');
if (p) {
r = sscanf(p, "s%d", &pshard);
if (r == 1) {
shard = shard_id_t(pshard);
} else {
return false;
}
}
return true;
}
ostream& operator<<(ostream& out, const spg_t &pg)
{
out << pg.pgid;
if (!pg.is_no_shard())
out << "s" << (unsigned)pg.shard;
return out;
}
pg_t pg_t::get_ancestor(unsigned old_pg_num) const
{
int old_bits = pg_pool_t::calc_bits_of(old_pg_num);
int old_mask = (1 << old_bits) - 1;
pg_t ret = *this;
ret.m_seed = ceph_stable_mod(m_seed, old_pg_num, old_mask);
return ret;
}
bool pg_t::is_split(unsigned old_pg_num, unsigned new_pg_num, set<pg_t> *children) const
{
assert(m_seed < old_pg_num);
if (new_pg_num <= old_pg_num)
return false;
bool split = false;
if (true) {
int old_bits = pg_pool_t::calc_bits_of(old_pg_num);
int old_mask = (1 << old_bits) - 1;
for (int n = 1; ; n++) {
int next_bit = (n << (old_bits-1));
unsigned s = next_bit | m_seed;
if (s < old_pg_num || s == m_seed)
continue;
if (s >= new_pg_num)
break;
if ((unsigned)ceph_stable_mod(s, old_pg_num, old_mask) == m_seed) {
split = true;
if (children)
children->insert(pg_t(s, m_pool, m_preferred));
}
}
}
if (false) {
// brute force
int old_bits = pg_pool_t::calc_bits_of(old_pg_num);
int old_mask = (1 << old_bits) - 1;
for (unsigned x = old_pg_num; x < new_pg_num; ++x) {
unsigned o = ceph_stable_mod(x, old_pg_num, old_mask);
if (o == m_seed) {
split = true;
children->insert(pg_t(x, m_pool, m_preferred));
}
}
}
return split;
}
unsigned pg_t::get_split_bits(unsigned pg_num) const {
if (pg_num == 1)
return 0;
assert(pg_num > 1);
// Find unique p such that pg_num \in [2^(p-1), 2^p)
unsigned p = pg_pool_t::calc_bits_of(pg_num);
assert(p); // silence coverity #751330
if ((m_seed % (1<<(p-1))) < (pg_num % (1<<(p-1))))
return p;
else
return p - 1;
}
pg_t pg_t::get_parent() const
{
unsigned bits = pg_pool_t::calc_bits_of(m_seed);
assert(bits);
pg_t retval = *this;
retval.m_seed &= ~((~0)<<(bits - 1));
return retval;
}
void pg_t::dump(Formatter *f) const
{
f->dump_unsigned("pool", m_pool);
f->dump_unsigned("seed", m_seed);
f->dump_int("preferred_osd", m_preferred);
}
void pg_t::generate_test_instances(list<pg_t*>& o)
{
o.push_back(new pg_t);
o.push_back(new pg_t(1, 2, -1));
o.push_back(new pg_t(13123, 3, -1));
o.push_back(new pg_t(131223, 4, 23));
}
ostream& operator<<(ostream& out, const pg_t &pg)
{
out << pg.pool() << '.';
out << hex << pg.ps() << dec;
if (pg.preferred() >= 0)
out << 'p' << pg.preferred();
//out << "=" << hex << (__uint64_t)pg << dec;
return out;
}
// -- coll_t --
bool coll_t::is_temp(spg_t& pgid) const
{
const char *cstr(str.c_str());
if (!pgid.parse(cstr))
return false;
const char *tmp_start = strchr(cstr, '_');
if (!tmp_start)
return false;
if (strncmp(tmp_start, "_TEMP", 5) == 0)
return true;
return false;
}
bool coll_t::is_pg(spg_t& pgid, snapid_t& snap) const
{
const char *cstr(str.c_str());
if (!pgid.parse(cstr))
return false;
const char *snap_start = strchr(cstr, '_');
if (!snap_start)
return false;
if (strncmp(snap_start, "_head", 5) == 0) {
snap = CEPH_NOSNAP;
} else {
errno = 0;
snap = strtoull(snap_start+1, 0, 16);
if (errno)
return false;
}
return true;
}
bool coll_t::is_pg_prefix(spg_t& pgid) const
{
const char *cstr(str.c_str());
if (!pgid.parse(cstr))
return false;
const char *snap_start = strchr(cstr, '_');
if (!snap_start)
return false;
return true;
}
bool coll_t::is_removal(uint64_t *seq, spg_t *pgid) const
{
if (str.substr(0, 11) != string("FORREMOVAL_"))
return false;
stringstream ss(str.substr(11));
ss >> *seq;
char sep;
ss >> sep;
assert(sep == '_');
string pgid_str;
ss >> pgid_str;
if (!pgid->parse(pgid_str.c_str())) {
assert(0);
return false;
}
return true;
}
void coll_t::encode(bufferlist& bl) const
{
__u8 struct_v = 3;
::encode(struct_v, bl);
::encode(str, bl);
}
void coll_t::decode(bufferlist::iterator& bl)
{
__u8 struct_v;
::decode(struct_v, bl);
switch (struct_v) {
case 1: {
spg_t pgid;
snapid_t snap;
::decode(pgid, bl);
::decode(snap, bl);
// infer the type
if (pgid == spg_t() && snap == 0)
str = "meta";
else
str = pg_and_snap_to_str(pgid, snap);
break;
}
case 2: {
__u8 type;
spg_t pgid;
snapid_t snap;
::decode(type, bl);
::decode(pgid, bl);
::decode(snap, bl);
switch (type) {
case 0:
str = "meta";
break;
case 1:
str = "temp";
break;
case 2:
str = pg_and_snap_to_str(pgid, snap);
break;
default: {
ostringstream oss;
oss << "coll_t::decode(): can't understand type " << type;
throw std::domain_error(oss.str());
}
}
break;
}
case 3:
::decode(str, bl);
break;
default: {
ostringstream oss;
oss << "coll_t::decode(): don't know how to decode version "
<< struct_v;
throw std::domain_error(oss.str());
}
}
}
void coll_t::dump(Formatter *f) const
{
f->dump_string("name", str);
}
void coll_t::generate_test_instances(list<coll_t*>& o)
{
o.push_back(new coll_t);
o.push_back(new coll_t("meta"));
o.push_back(new coll_t("temp"));
o.push_back(new coll_t("foo"));
o.push_back(new coll_t("bar"));
}
// ---
std::string pg_vector_string(const vector<int32_t> &a)
{
ostringstream oss;
oss << "[";
for (vector<int32_t>::const_iterator i = a.begin(); i != a.end(); ++i) {
if (i != a.begin())
oss << ",";
if (*i != CRUSH_ITEM_NONE)
oss << *i;
else
oss << "NONE";
}
oss << "]";
return oss.str();
}
std::string pg_state_string(int state)
{
ostringstream oss;
if (state & PG_STATE_STALE)
oss << "stale+";
if (state & PG_STATE_CREATING)
oss << "creating+";
if (state & PG_STATE_ACTIVE)
oss << "active+";
if (state & PG_STATE_ACTIVATING)
oss << "activating+";
if (state & PG_STATE_CLEAN)
oss << "clean+";
if (state & PG_STATE_RECOVERY_WAIT)
oss << "recovery_wait+";
if (state & PG_STATE_RECOVERING)
oss << "recovering+";
if (state & PG_STATE_DOWN)
oss << "down+";
if (state & PG_STATE_REPLAY)
oss << "replay+";
if (state & PG_STATE_SPLITTING)
oss << "splitting+";
if (state & PG_STATE_UNDERSIZED)
oss << "undersized+";
if (state & PG_STATE_DEGRADED)
oss << "degraded+";
if (state & PG_STATE_REMAPPED)
oss << "remapped+";
if (state & PG_STATE_SCRUBBING)
oss << "scrubbing+";
if (state & PG_STATE_DEEP_SCRUB)
oss << "deep+";
if (state & PG_STATE_SCRUBQ)
oss << "scrubq+";
if (state & PG_STATE_INCONSISTENT)
oss << "inconsistent+";
if (state & PG_STATE_PEERING)
oss << "peering+";
if (state & PG_STATE_REPAIR)
oss << "repair+";
if ((state & PG_STATE_BACKFILL_WAIT) &&
!(state &PG_STATE_BACKFILL))
oss << "wait_backfill+";
if (state & PG_STATE_BACKFILL)
oss << "backfilling+";
if (state & PG_STATE_BACKFILL_TOOFULL)
oss << "backfill_toofull+";
if (state & PG_STATE_INCOMPLETE)
oss << "incomplete+";
if (state & PG_STATE_PEERED)
oss << "peered+";
string ret(oss.str());
if (ret.length() > 0)
ret.resize(ret.length() - 1);
else
ret = "inactive";
return ret;
}
int pg_string_state(const std::string& state)
{
int type;
if (state == "active")
type = PG_STATE_ACTIVE;
else if (state == "clean")
type = PG_STATE_CLEAN;
else if (state == "down")
type = PG_STATE_DOWN;
else if (state == "replay")
type = PG_STATE_REPLAY;
else if (state == "splitting")
type = PG_STATE_SPLITTING;
else if (state == "scrubbing")
type = PG_STATE_SCRUBBING;
else if (state == "scrubq")
type = PG_STATE_SCRUBQ;
else if (state == "degraded")
type = PG_STATE_DEGRADED;
else if (state == "inconsistent")
type = PG_STATE_INCONSISTENT;
else if (state == "peering")
type = PG_STATE_PEERING;
else if (state == "repair")
type = PG_STATE_REPAIR;
else if (state == "recovering")
type = PG_STATE_RECOVERING;
else if (state == "backfill_wait")
type = PG_STATE_BACKFILL_WAIT;
else if (state == "incomplete")
type = PG_STATE_INCOMPLETE;
else if (state == "stale")
type = PG_STATE_STALE;
else if (state == "remapped")
type = PG_STATE_REMAPPED;
else if (state == "deep_scrub")
type = PG_STATE_DEEP_SCRUB;
else if (state == "backfill")
type = PG_STATE_BACKFILL;
else if (state == "backfill_toofull")
type = PG_STATE_BACKFILL_TOOFULL;
else if (state == "recovery_wait")
type = PG_STATE_RECOVERY_WAIT;
else if (state == "undersized")
type = PG_STATE_UNDERSIZED;
else
type = -1;
return type;
}
// -- eversion_t --
string eversion_t::get_key_name() const
{
char key[40];
snprintf(
key, sizeof(key), "%010u.%020llu", epoch, (long long unsigned)version);
return string(key);
}
// -- pool_snap_info_t --
void pool_snap_info_t::dump(Formatter *f) const
{
f->dump_unsigned("snapid", snapid);
f->dump_stream("stamp") << stamp;
f->dump_string("name", name);
}
void pool_snap_info_t::encode(bufferlist& bl, uint64_t features) const
{
if ((features & CEPH_FEATURE_PGPOOL3) == 0) {
__u8 struct_v = 1;
::encode(struct_v, bl);
::encode(snapid, bl);
::encode(stamp, bl);
::encode(name, bl);
return;
}
ENCODE_START(2, 2, bl);
::encode(snapid, bl);
::encode(stamp, bl);
::encode(name, bl);
ENCODE_FINISH(bl);
}
void pool_snap_info_t::decode(bufferlist::iterator& bl)
{
DECODE_START_LEGACY_COMPAT_LEN(2, 2, 2, bl);
::decode(snapid, bl);
::decode(stamp, bl);
::decode(name, bl);
DECODE_FINISH(bl);
}
void pool_snap_info_t::generate_test_instances(list<pool_snap_info_t*>& o)
{
o.push_back(new pool_snap_info_t);
o.push_back(new pool_snap_info_t);
o.back()->snapid = 1;
o.back()->stamp = utime_t(1, 2);
o.back()->name = "foo";
}
// -- pg_pool_t --
void pg_pool_t::dump(Formatter *f) const
{
f->dump_unsigned("flags", get_flags());
f->dump_string("flags_names", get_flags_string());
f->dump_int("type", get_type());
f->dump_int("size", get_size());
f->dump_int("min_size", get_min_size());
f->dump_int("crush_ruleset", get_crush_ruleset());
f->dump_int("object_hash", get_object_hash());
f->dump_int("pg_num", get_pg_num());
f->dump_int("pg_placement_num", get_pgp_num());
f->dump_unsigned("crash_replay_interval", get_crash_replay_interval());
f->dump_stream("last_change") << get_last_change();
f->dump_stream("last_force_op_resend") << get_last_force_op_resend();
f->dump_unsigned("auid", get_auid());
f->dump_string("snap_mode", is_pool_snaps_mode() ? "pool" : "selfmanaged");
f->dump_unsigned("snap_seq", get_snap_seq());
f->dump_unsigned("snap_epoch", get_snap_epoch());
f->open_array_section("pool_snaps");
for (map<snapid_t, pool_snap_info_t>::const_iterator p = snaps.begin(); p != snaps.end(); ++p) {
f->open_object_section("pool_snap_info");
p->second.dump(f);
f->close_section();
}
f->close_section();
f->dump_stream("removed_snaps") << removed_snaps;
f->dump_int("quota_max_bytes", quota_max_bytes);
f->dump_int("quota_max_objects", quota_max_objects);
f->open_array_section("tiers");
for (set<uint64_t>::const_iterator p = tiers.begin(); p != tiers.end(); ++p)
f->dump_int("pool_id", *p);
f->close_section();
f->dump_int("tier_of", tier_of);
f->dump_int("read_tier", read_tier);
f->dump_int("write_tier", write_tier);
f->dump_string("cache_mode", get_cache_mode_name());
f->dump_unsigned("target_max_bytes", target_max_bytes);
f->dump_unsigned("target_max_objects", target_max_objects);
f->dump_unsigned("cache_target_dirty_ratio_micro",
cache_target_dirty_ratio_micro);
f->dump_unsigned("cache_target_full_ratio_micro",
cache_target_full_ratio_micro);
f->dump_unsigned("cache_min_flush_age", cache_min_flush_age);
f->dump_unsigned("cache_min_evict_age", cache_min_evict_age);
f->dump_string("erasure_code_profile", erasure_code_profile);
f->open_object_section("hit_set_params");
hit_set_params.dump(f);
f->close_section(); // hit_set_params
f->dump_unsigned("hit_set_period", hit_set_period);
f->dump_unsigned("hit_set_count", hit_set_count);
f->dump_unsigned("min_read_recency_for_promote", min_read_recency_for_promote);
f->dump_unsigned("stripe_width", get_stripe_width());
f->dump_unsigned("expected_num_objects", expected_num_objects);
}
int pg_pool_t::calc_bits_of(int t)
{
int b = 0;
while (t > 0) {
t = t >> 1;
++b;
}
return b;
}
void pg_pool_t::calc_pg_masks()
{
pg_num_mask = (1 << calc_bits_of(pg_num-1)) - 1;
pgp_num_mask = (1 << calc_bits_of(pgp_num-1)) - 1;
}
unsigned pg_pool_t::get_pg_num_divisor(pg_t pgid) const
{
if (pg_num == pg_num_mask + 1)
return pg_num; // power-of-2 split
unsigned mask = pg_num_mask >> 1;
if ((pgid.ps() & mask) < (pg_num & mask))
return pg_num_mask + 1; // smaller bin size (already split)
else
return (pg_num_mask + 1) >> 1; // bigger bin (not yet split)
}
/*
* we have two snap modes:
* - pool global snaps
* - snap existence/non-existence defined by snaps[] and snap_seq
* - user managed snaps
* - removal governed by removed_snaps
*
* we know which mode we're using based on whether removed_snaps is empty.
*/
bool pg_pool_t::is_pool_snaps_mode() const
{
return removed_snaps.empty() && get_snap_seq() > 0;
}
bool pg_pool_t::is_unmanaged_snaps_mode() const
{
return removed_snaps.size() && get_snap_seq() > 0;
}
bool pg_pool_t::is_removed_snap(snapid_t s) const
{
if (is_pool_snaps_mode())
return s <= get_snap_seq() && snaps.count(s) == 0;
else
return removed_snaps.contains(s);
}
/*
* build set of known-removed sets from either pool snaps or
* explicit removed_snaps set.
*/
void pg_pool_t::build_removed_snaps(interval_set<snapid_t>& rs) const
{
if (is_pool_snaps_mode()) {
rs.clear();
for (snapid_t s = 1; s <= get_snap_seq(); s = s + 1)
if (snaps.count(s) == 0)
rs.insert(s);
} else {