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-rw-r--r--src/test/librados/snapshots_stats.cc332
1 files changed, 332 insertions, 0 deletions
diff --git a/src/test/librados/snapshots_stats.cc b/src/test/librados/snapshots_stats.cc
new file mode 100644
index 000000000..143299ab1
--- /dev/null
+++ b/src/test/librados/snapshots_stats.cc
@@ -0,0 +1,332 @@
+#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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