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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab ft=cpp
#include <gtest/gtest.h>
#include "rgw_ratelimit.h"
using namespace std::chrono_literals;
TEST(RGWRateLimit, op_limit_not_enabled)
{
// info.enabled = false, so no limit
std::atomic_bool replacing;
std::condition_variable cv;
RateLimiter ratelimit(replacing, cv);
RGWRateLimitInfo info;
auto time = ceph::coarse_real_clock::now();
std::string key = "uuser123";
bool success = ratelimit.should_rate_limit("PUT", key, time, &info);
EXPECT_EQ(false, success);
}
TEST(RGWRateLimit, reject_op_over_limit)
{
// check that request is being rejected because there are not enough tokens
std::atomic_bool replacing;
std::condition_variable cv;
RateLimiter ratelimit(replacing, cv);
RGWRateLimitInfo info;
info.enabled = true;
info.max_read_ops = 1;
auto time = ceph::coarse_real_clock::now();
std::string key = "uuser123";
bool success = ratelimit.should_rate_limit("GET", key, time, &info);
time = ceph::coarse_real_clock::now();
success = ratelimit.should_rate_limit("GET", key, time, &info);
EXPECT_EQ(true, success);
}
TEST(RGWRateLimit, accept_op_after_giveback)
{
// check that giveback is working fine
std::atomic_bool replacing;
std::condition_variable cv;
RateLimiter ratelimit(replacing, cv);
RGWRateLimitInfo info;
info.enabled = true;
info.max_read_ops = 1;
auto time = ceph::coarse_real_clock::now();
std::string key = "uuser123";
bool success = ratelimit.should_rate_limit("GET", key, time, &info);
ratelimit.giveback_tokens("GET", key);
time = ceph::coarse_real_clock::now();
success = ratelimit.should_rate_limit("GET", key, time, &info);
EXPECT_EQ(false, success);
}
TEST(RGWRateLimit, accept_op_after_refill)
{
// check that tokens are being filled properly
std::atomic_bool replacing;
std::condition_variable cv;
RateLimiter ratelimit(replacing, cv);
RGWRateLimitInfo info;
info.enabled = true;
info.max_read_ops = 1;
auto time = ceph::coarse_real_clock::now();
std::string key = "uuser123";
bool success = ratelimit.should_rate_limit("GET", key, time, &info);
time += 61s;
success = ratelimit.should_rate_limit("GET", key, time, &info);
EXPECT_EQ(false, success);
}
TEST(RGWRateLimit, reject_bw_over_limit)
{
// check that a newer request is rejected if there is no enough tokens (bw)
std::atomic_bool replacing;
std::condition_variable cv;
RateLimiter ratelimit(replacing, cv);
RGWRateLimitInfo info;
info.enabled = true;
info.max_read_bytes = 1;
auto time = ceph::coarse_real_clock::now();
std::string key = "uuser123";
bool success = ratelimit.should_rate_limit("GET", key, time, &info);
ratelimit.decrease_bytes("GET",key, 2, &info);
time = ceph::coarse_real_clock::now();
success = ratelimit.should_rate_limit("GET", key, time, &info);
EXPECT_EQ(true, success);
}
TEST(RGWRateLimit, accept_bw)
{
// check that when there are enough tokens (bw) the request is still being served
std::atomic_bool replacing;
std::condition_variable cv;
RateLimiter ratelimit(replacing, cv);
RGWRateLimitInfo info;
info.enabled = true;
info.max_read_bytes = 2;
auto time = ceph::coarse_real_clock::now();
std::string key = "uuser123";
bool success = ratelimit.should_rate_limit("GET", key, time, &info);
ratelimit.decrease_bytes("GET",key, 1, &info);
time = ceph::coarse_real_clock::now();
success = ratelimit.should_rate_limit("GET", key, time, &info);
EXPECT_EQ(false, success);
}
TEST(RGWRateLimit, check_bw_debt_at_max_120secs)
{
// check that the bandwidth debt is not larger than 120 seconds
std::atomic_bool replacing;
std::condition_variable cv;
RateLimiter ratelimit(replacing, cv);
RGWRateLimitInfo info;
info.enabled = true;
info.max_read_bytes = 2;
auto time = ceph::coarse_real_clock::now();
std::string key = "uuser123";
bool success = ratelimit.should_rate_limit("GET", key, time, &info);
ratelimit.decrease_bytes("GET",key, 100, &info);
time += 121s;
success = ratelimit.should_rate_limit("GET", key, time, &info);
EXPECT_EQ(false, success);
}
TEST(RGWRateLimit, check_that_bw_limit_not_affect_ops)
{
// check that high read bytes limit, does not affect ops limit
std::atomic_bool replacing;
std::condition_variable cv;
RateLimiter ratelimit(replacing, cv);
RGWRateLimitInfo info;
info.enabled = true;
info.max_read_ops = 1;
info.max_read_bytes = 100000000;
auto time = ceph::coarse_real_clock::now();
std::string key = "uuser123";
bool success = ratelimit.should_rate_limit("GET", key, time, &info);
ratelimit.decrease_bytes("GET",key, 10000, &info);
time = ceph::coarse_real_clock::now();
success = ratelimit.should_rate_limit("GET", key, time, &info);
EXPECT_EQ(true, success);
}
TEST(RGWRateLimit, read_limit_does_not_affect_writes)
{
// read limit does not affect writes
std::atomic_bool replacing;
std::condition_variable cv;
RateLimiter ratelimit(replacing, cv);
RGWRateLimitInfo info;
info.enabled = true;
info.max_read_ops = 1;
info.max_read_bytes = 100000000;
auto time = ceph::coarse_real_clock::now();
std::string key = "uuser123";
bool success = ratelimit.should_rate_limit("PUT", key, time, &info);
ratelimit.decrease_bytes("PUT",key, 10000, &info);
time = ceph::coarse_real_clock::now();
success = ratelimit.should_rate_limit("PUT", key, time, &info);
EXPECT_EQ(false, success);
}
TEST(RGWRateLimit, write_limit_does_not_affect_reads)
{
// write limit does not affect reads
std::atomic_bool replacing;
std::condition_variable cv;
RateLimiter ratelimit(replacing, cv);
RGWRateLimitInfo info;
info.enabled = true;
info.max_write_ops = 1;
info.max_write_bytes = 100000000;
auto time = ceph::coarse_real_clock::now();
std::string key = "uuser123";
bool success = ratelimit.should_rate_limit("GET", key, time, &info);
ratelimit.decrease_bytes("GET",key, 10000, &info);
time = ceph::coarse_real_clock::now();
success = ratelimit.should_rate_limit("GET", key, time, &info);
EXPECT_EQ(false, success);
}
TEST(RGWRateLimit, allow_unlimited_access)
{
// 0 values in RGWRateLimitInfo should allow unlimited access
std::atomic_bool replacing;
std::condition_variable cv;
RateLimiter ratelimit(replacing, cv);
RGWRateLimitInfo info;
info.enabled = true;
auto time = ceph::coarse_real_clock::now();
std::string key = "uuser123";
bool success = ratelimit.should_rate_limit("GET", key, time, &info);
EXPECT_EQ(false, success);
}
TEST(RGWRateLimitGC, NO_GC_AHEAD_OF_TIME)
{
// Test if GC is not starting the replace before getting to map_size * 0.9
// Please make sure to change those values when you change the map_size in the code
std::shared_ptr<ActiveRateLimiter> ratelimit(new ActiveRateLimiter(g_ceph_context));
ratelimit->start();
auto active = ratelimit->get_active();
RGWRateLimitInfo info;
auto time = ceph::coarse_real_clock::now();
std::string key = "uuser123";
active->should_rate_limit("GET", key, time, &info);
auto activegc = ratelimit->get_active();
EXPECT_EQ(activegc, active);
}
TEST(RGWRateLimiterGC, GC_IS_WORKING)
{
// Test if GC is replacing the active RateLimiter
// Please make sure to change those values when you change the map_size in the code
std::shared_ptr<ActiveRateLimiter> ratelimit(new ActiveRateLimiter(g_ceph_context));
ratelimit->start();
auto active = ratelimit->get_active();
RGWRateLimitInfo info;
info.enabled = true;
auto time = ceph::coarse_real_clock::now();
std::string key = "-1";
for(int i = 0; i < 2000000; i++)
{
active->should_rate_limit("GET", key, time, &info);
key = std::to_string(i);
}
auto activegc = ratelimit->get_active();
EXPECT_NE(activegc, active);
}
TEST(RGWRateLimitEntry, op_limit_not_enabled)
{
// info.enabled = false, so no limit
RateLimiterEntry entry;
RGWRateLimitInfo info;
auto time = ceph::coarse_real_clock::now().time_since_epoch();
bool success = entry.should_rate_limit(false, &info, time);
EXPECT_EQ(false, success);
}
TEST(RGWRateLimitEntry, reject_op_over_limit)
{
// check that request is being rejected because there are not enough tokens
RGWRateLimitInfo info;
RateLimiterEntry entry;
info.enabled = true;
info.max_read_ops = 1;
auto time = ceph::coarse_real_clock::now().time_since_epoch();
bool success = entry.should_rate_limit(true, &info, time);
time = ceph::coarse_real_clock::now().time_since_epoch();
success = entry.should_rate_limit(true, &info, time);
EXPECT_EQ(true, success);
}
TEST(RGWRateLimitEntry, accept_op_after_giveback)
{
// check that giveback is working fine
RGWRateLimitInfo info;
RateLimiterEntry entry;
info.enabled = true;
info.max_read_ops = 1;
auto time = ceph::coarse_real_clock::now().time_since_epoch();
bool success = entry.should_rate_limit(true, &info, time);
entry.giveback_tokens(true);
time = ceph::coarse_real_clock::now().time_since_epoch();
success = entry.should_rate_limit(true, &info, time);
EXPECT_EQ(false, success);
}
TEST(RGWRateLimitEntry, accept_op_after_refill)
{
// check that tokens are being filled properly
RateLimiterEntry entry;
RGWRateLimitInfo info;
info.enabled = true;
info.max_read_ops = 1;
auto time = ceph::coarse_real_clock::now().time_since_epoch();
bool success = entry.should_rate_limit(true, &info, time);
time += 61s;
success = entry.should_rate_limit(true, &info, time);
EXPECT_EQ(false, success);
}
TEST(RGWRateLimitEntry, reject_bw_over_limit)
{
// check that a newer request is rejected if there is no enough tokens (bw)
RateLimiterEntry entry;
RGWRateLimitInfo info;
info.enabled = true;
info.max_read_bytes = 1;
auto time = ceph::coarse_real_clock::now().time_since_epoch();
bool success = entry.should_rate_limit(true, &info, time);
entry.decrease_bytes(true, 2, &info);
time = ceph::coarse_real_clock::now().time_since_epoch();
success = entry.should_rate_limit(true, &info, time);
EXPECT_EQ(true, success);
}
TEST(RGWRateLimitEntry, accept_bw)
{
// check that when there are enough tokens (bw) the request is still being served
RateLimiterEntry entry;
RGWRateLimitInfo info;
info.enabled = true;
info.max_read_bytes = 2;
auto time = ceph::coarse_real_clock::now().time_since_epoch();
bool success = entry.should_rate_limit(true, &info, time);
entry.decrease_bytes(true, 1, &info);
time = ceph::coarse_real_clock::now().time_since_epoch();
success = entry.should_rate_limit(true, &info, time);
EXPECT_EQ(false, success);
}
TEST(RGWRateLimitEntry, check_bw_debt_at_max_120secs)
{
// check that the bandwidth debt is not larger than 120 seconds
RateLimiterEntry entry;
RGWRateLimitInfo info;
info.enabled = true;
info.max_read_bytes = 2;
auto time = ceph::coarse_real_clock::now().time_since_epoch();
bool success = entry.should_rate_limit(true, &info, time);
entry.decrease_bytes(true, 100, &info);
time += 121s;
success = entry.should_rate_limit(true, &info, time);
EXPECT_EQ(false, success);
}
TEST(RGWRateLimitEntry, check_that_bw_limit_not_affect_ops)
{
// check that high read bytes limit, does not affect ops limit
RateLimiterEntry entry;
RGWRateLimitInfo info;
info.enabled = true;
info.max_read_ops = 1;
info.max_read_bytes = 100000000;
auto time = ceph::coarse_real_clock::now().time_since_epoch();
bool success = entry.should_rate_limit(true, &info, time);
entry.decrease_bytes(true, 10000, &info);
time = ceph::coarse_real_clock::now().time_since_epoch();
success = entry.should_rate_limit(true, &info, time);
EXPECT_EQ(true, success);
}
TEST(RGWRateLimitEntry, read_limit_does_not_affect_writes)
{
// read limit does not affect writes
RateLimiterEntry entry;
RGWRateLimitInfo info;
info.enabled = true;
info.max_read_ops = 1;
info.max_read_bytes = 100000000;
auto time = ceph::coarse_real_clock::now().time_since_epoch();
bool success = entry.should_rate_limit(false, &info, time);
entry.decrease_bytes(false, 10000, &info);
time = ceph::coarse_real_clock::now().time_since_epoch();
success = entry.should_rate_limit(false, &info, time);
EXPECT_EQ(false, success);
}
TEST(RGWRateLimitEntry, write_limit_does_not_affect_reads)
{
// write limit does not affect reads
RateLimiterEntry entry;
RGWRateLimitInfo info;
info.enabled = true;
info.max_write_ops = 1;
info.max_write_bytes = 100000000;
auto time = ceph::coarse_real_clock::now().time_since_epoch();
std::string key = "uuser123";
bool success = entry.should_rate_limit(true, &info, time);
entry.decrease_bytes(true, 10000, &info);
time = ceph::coarse_real_clock::now().time_since_epoch();
success = entry.should_rate_limit(true, &info, time);
EXPECT_EQ(false, success);
}
TEST(RGWRateLimitEntry, allow_unlimited_access)
{
// 0 values in RGWRateLimitInfo should allow unlimited access (default value)
RateLimiterEntry entry;
RGWRateLimitInfo info;
info.enabled = true;
auto time = ceph::coarse_real_clock::now().time_since_epoch();
bool success = entry.should_rate_limit(true, &info, time);
EXPECT_EQ(false, success);
}
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