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#include "include/rados.h"
#include "json_spirit/json_spirit.h"
#include "test/librados/test.h"
#include "test/librados/TestCase.h"
#include <algorithm>
#include <errno.h>
#include "gtest/gtest.h"
#include <string>
#include <vector>
using std::string;
class LibRadosSnapshotStatsSelfManaged : public RadosTest {
public:
LibRadosSnapshotStatsSelfManaged() {};
~LibRadosSnapshotStatsSelfManaged() override {};
protected:
void SetUp() override {
// disable pg autoscaler for the tests
string c =
"{"
"\"prefix\": \"config set\", "
"\"who\": \"global\", "
"\"name\": \"osd_pool_default_pg_autoscale_mode\", "
"\"value\": \"off\""
"}";
char *cmd[1];
cmd[0] = (char *)c.c_str();
std::cout << "Setting pg_autoscaler to 'off'" << std::endl;
ASSERT_EQ(0, rados_mon_command(s_cluster, (const char **)cmd, 1, "", 0, NULL,
0, NULL, 0));
// disable scrubs for the test
c = string("{\"prefix\": \"osd set\",\"key\":\"noscrub\"}");
cmd[0] = (char *)c.c_str();
ASSERT_EQ(0, rados_mon_command(s_cluster, (const char **)cmd, 1, "", 0, NULL, 0, NULL, 0));
c = string("{\"prefix\": \"osd set\",\"key\":\"nodeep-scrub\"}");
cmd[0] = (char *)c.c_str();
ASSERT_EQ(0, rados_mon_command(s_cluster, (const char **)cmd, 1, "", 0, NULL, 0, NULL, 0));
RadosTest::SetUp();
}
void TearDown() override {
// re-enable pg autoscaler
string c =
"{"
"\"prefix\": \"config set\", "
"\"who\": \"global\", "
"\"name\": \"osd_pool_default_pg_autoscale_mode\", "
"\"value\": \"on\""
"}";
char *cmd[1];
cmd[0] = (char *)c.c_str();
std::cout << "Setting pg_autoscaler to 'on'" << std::endl;
ASSERT_EQ(0, rados_mon_command(s_cluster, (const char **)cmd, 1, "", 0, NULL,
0, NULL, 0));
// re-enable scrubs
c = string("{\"prefix\": \"osd unset\",\"key\":\"noscrub\"}");
cmd[0] = (char *)c.c_str();
ASSERT_EQ(0, rados_mon_command(s_cluster, (const char **)cmd, 1, "", 0, NULL, 0, NULL, 0));
c = string("{\"prefix\": \"osd unset\",\"key\":\"nodeep-scrub\"}");
cmd[0] = (char *)c.c_str();
ASSERT_EQ(0, rados_mon_command(s_cluster, (const char **)cmd, 1, "", 0, NULL, 0, NULL, 0));
RadosTest::TearDown();
}
};
class LibRadosSnapshotStatsSelfManagedEC : public RadosTestEC {
public:
LibRadosSnapshotStatsSelfManagedEC() {};
~LibRadosSnapshotStatsSelfManagedEC() override {};
protected:
void SetUp() override {
// disable pg autoscaler for the tests
string c =
"{"
"\"prefix\": \"config set\", "
"\"who\": \"global\", "
"\"name\": \"osd_pool_default_pg_autoscale_mode\", "
"\"value\": \"off\""
"}";
char *cmd[1];
cmd[0] = (char *)c.c_str();
std::cout << "Setting pg_autoscaler to 'off'" << std::endl;
ASSERT_EQ(0, rados_mon_command(s_cluster, (const char **)cmd, 1, "", 0, NULL,
0, NULL, 0));
// disable scrubs for the test
c = string("{\"prefix\": \"osd set\",\"key\":\"noscrub\"}");
cmd[0] = (char *)c.c_str();
ASSERT_EQ(0, rados_mon_command(s_cluster, (const char **)cmd, 1, "", 0, NULL, 0, NULL, 0));
c = string("{\"prefix\": \"osd set\",\"key\":\"nodeep-scrub\"}");
cmd[0] = (char *)c.c_str();
ASSERT_EQ(0, rados_mon_command(s_cluster, (const char **)cmd, 1, "", 0, NULL, 0, NULL, 0));
RadosTestEC::SetUp();
}
void TearDown() override {
// re-enable pg autoscaler
string c =
"{"
"\"prefix\": \"config set\", "
"\"who\": \"global\", "
"\"name\": \"osd_pool_default_pg_autoscale_mode\", "
"\"value\": \"on\""
"}";
char *cmd[1];
cmd[0] = (char *)c.c_str();
std::cout << "Setting pg_autoscaler to 'on'" << std::endl;
ASSERT_EQ(0, rados_mon_command(s_cluster, (const char **)cmd, 1, "", 0, NULL,
0, NULL, 0));
// re-enable scrubs
c = string("{\"prefix\": \"osd unset\",\"key\":\"noscrub\"}");
cmd[0] = (char *)c.c_str();
ASSERT_EQ(0, rados_mon_command(s_cluster, (const char **)cmd, 1, "", 0, NULL, 0, NULL, 0));
c = string("{\"prefix\": \"osd unset\",\"key\":\"nodeep-scrub\"}");
cmd[0] = (char *)c.c_str();
ASSERT_EQ(0, rados_mon_command(s_cluster, (const char **)cmd, 1, "", 0, NULL, 0, NULL, 0));
RadosTestEC::TearDown();
}
};
void get_snaptrim_stats(json_spirit::Object& pg_dump,
int *objs_trimmed,
double *trim_duration) {
// pg_map
json_spirit::Object pgmap;
for (json_spirit::Object::size_type i = 0; i < pg_dump.size(); ++i) {
json_spirit::Pair& p = pg_dump[i];
if (p.name_ == "pg_map") {
pgmap = p.value_.get_obj();
break;
}
}
// pg_stats array
json_spirit::Array pgs;
for (json_spirit::Object::size_type i = 0; i < pgmap.size(); ++i) {
json_spirit::Pair& p = pgmap[i];
if (p.name_ == "pg_stats") {
pgs = p.value_.get_array();
break;
}
}
// snaptrim stats
for (json_spirit::Object::size_type j = 0; j < pgs.size(); ++j) {
json_spirit::Object& pg_stat = pgs[j].get_obj();
for(json_spirit::Object::size_type k = 0; k < pg_stat.size(); ++k) {
json_spirit::Pair& stats = pg_stat[k];
if (stats.name_ == "objects_trimmed") {
*objs_trimmed += stats.value_.get_int();
}
if (stats.name_ == "snaptrim_duration") {
*trim_duration += stats.value_.get_real();
}
}
}
}
const int bufsize = 128;
TEST_F(LibRadosSnapshotStatsSelfManaged, SnaptrimStats) {
int num_objs = 10;
// create objects
char buf[bufsize];
memset(buf, 0xcc, sizeof(buf));
for (int i = 0; i < num_objs; ++i) {
string obj = string("foo") + std::to_string(i);
ASSERT_EQ(0, rados_write(ioctx, obj.c_str(), buf, sizeof(buf), 0));
}
std::vector<uint64_t> my_snaps;
for (int snap = 0; snap < 1; ++snap) {
// create a snapshot, clone
std::vector<uint64_t> ns(1);
ns.insert(ns.end(), my_snaps.begin(), my_snaps.end());
my_snaps.swap(ns);
ASSERT_EQ(0, rados_ioctx_selfmanaged_snap_create(ioctx, &my_snaps[0]));
ASSERT_EQ(0, rados_ioctx_selfmanaged_snap_set_write_ctx(ioctx, my_snaps[0],
&my_snaps[0], my_snaps.size()));
char buf2[sizeof(buf)];
memset(buf2, 0xdd, sizeof(buf2));
for (int i = 0; i < num_objs; ++i) {
string obj = string("foo") + std::to_string(i);
ASSERT_EQ(0, rados_write(ioctx, obj.c_str(), buf2, sizeof(buf2), 0));
}
}
// wait for maps to settle
ASSERT_EQ(0, rados_wait_for_latest_osdmap(cluster));
// remove snaps - should trigger snaptrim
rados_ioctx_snap_set_read(ioctx, LIBRADOS_SNAP_HEAD);
for (unsigned snap = 0; snap < my_snaps.size(); ++snap) {
ASSERT_EQ(0, rados_ioctx_selfmanaged_snap_remove(ioctx, my_snaps[snap]));
}
// sleep for few secs for the trim stats to populate
std::cout << "Waiting for snaptrim stats to be generated" << std::endl;
sleep(30);
// Dump pg stats and determine if snaptrim stats are getting set
int objects_trimmed = 0;
double snaptrim_duration = 0.0;
int tries = 0;
do {
char *buf, *st;
size_t buflen, stlen;
string c = string("{\"prefix\": \"pg dump\",\"format\":\"json\"}");
const char *cmd = c.c_str();
ASSERT_EQ(0, rados_mon_command(cluster, (const char **)&cmd, 1, "", 0,
&buf, &buflen, &st, &stlen));
string outstr(buf, buflen);
json_spirit::Value v;
ASSERT_NE(0, json_spirit::read(outstr, v)) << "unable to parse json."
<< '\n' << outstr;
// pg dump object
json_spirit::Object& obj = v.get_obj();
get_snaptrim_stats(obj, &objects_trimmed, &snaptrim_duration);
if (objects_trimmed < num_objs) {
tries++;
objects_trimmed = 0;
std::cout << "Still waiting for all objects to be trimmed... " <<std::endl;
sleep(30);
}
} while(objects_trimmed < num_objs && tries < 5);
// final check for objects trimmed
ASSERT_EQ(objects_trimmed, num_objs);
std::cout << "Snaptrim duration: " << snaptrim_duration << std::endl;
ASSERT_GT(snaptrim_duration, 0.0);
// clean-up remaining objects
for (int i = 0; i < num_objs; ++i) {
string obj = string("foo") + std::to_string(i);
ASSERT_EQ(0, rados_remove(ioctx, obj.c_str()));
}
}
// EC testing
TEST_F(LibRadosSnapshotStatsSelfManagedEC, SnaptrimStats) {
int num_objs = 10;
int bsize = alignment;
char *buf = (char *)new char[bsize];
memset(buf, 0xcc, bsize);
// create objects
for (int i = 0; i < num_objs; ++i) {
string obj = string("foo") + std::to_string(i);
ASSERT_EQ(0, rados_write(ioctx, obj.c_str(), buf, bsize, 0));
}
std::vector<uint64_t> my_snaps;
for (int snap = 0; snap < 1; ++snap) {
// create a snapshot, clone
std::vector<uint64_t> ns(1);
ns.insert(ns.end(), my_snaps.begin(), my_snaps.end());
my_snaps.swap(ns);
ASSERT_EQ(0, rados_ioctx_selfmanaged_snap_create(ioctx, &my_snaps[0]));
ASSERT_EQ(0, rados_ioctx_selfmanaged_snap_set_write_ctx(ioctx, my_snaps[0],
&my_snaps[0], my_snaps.size()));
char *buf2 = (char *)new char[bsize];
memset(buf2, 0xdd, bsize);
for (int i = 0; i < num_objs; ++i) {
string obj = string("foo") + std::to_string(i);
ASSERT_EQ(0, rados_write(ioctx, obj.c_str(), buf2, bsize, bsize));
}
delete[] buf2;
}
// wait for maps to settle
ASSERT_EQ(0, rados_wait_for_latest_osdmap(cluster));
// remove snaps - should trigger snaptrim
rados_ioctx_snap_set_read(ioctx, LIBRADOS_SNAP_HEAD);
for (unsigned snap = 0; snap < my_snaps.size(); ++snap) {
ASSERT_EQ(0, rados_ioctx_selfmanaged_snap_remove(ioctx, my_snaps[snap]));
}
// sleep for few secs for the trim stats to populate
std::cout << "Waiting for snaptrim stats to be generated" << std::endl;
sleep(30);
// Dump pg stats and determine if snaptrim stats are getting set
int objects_trimmed = 0;
double snaptrim_duration = 0.0;
int tries = 0;
do {
char *buf, *st;
size_t buflen, stlen;
string c = string("{\"prefix\": \"pg dump\",\"format\":\"json\"}");
const char *cmd = c.c_str();
ASSERT_EQ(0, rados_mon_command(cluster, (const char **)&cmd, 1, 0, 0,
&buf, &buflen, &st, &stlen));
string outstr(buf, buflen);
json_spirit::Value v;
ASSERT_NE(0, json_spirit::read(outstr, v)) << "Unable tp parse json."
<< '\n' << outstr;
// pg dump object
json_spirit::Object& obj = v.get_obj();
get_snaptrim_stats(obj, &objects_trimmed, &snaptrim_duration);
if (objects_trimmed != num_objs) {
tries++;
objects_trimmed = 0;
std::cout << "Still waiting for all objects to be trimmed... " <<std::endl;
sleep(30);
}
} while (objects_trimmed != num_objs && tries < 5);
// final check for objects trimmed
ASSERT_EQ(objects_trimmed, num_objs);
std::cout << "Snaptrim duration: " << snaptrim_duration << std::endl;
ASSERT_GT(snaptrim_duration, 0.0);
// clean-up remaining objects
for (int i = 0; i < num_objs; ++i) {
string obj = string("foo") + std::to_string(i);
ASSERT_EQ(0, rados_remove(ioctx, obj.c_str()));
}
delete[] buf;
}
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