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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/searchcore/proton/common/hw_info.h>
#include <vespa/searchcore/proton/server/disk_mem_usage_filter.h>
#include <vespa/searchcore/proton/server/resource_usage_state.h>
#include <vespa/vespalib/gtest/gtest.h>
using namespace proton;
namespace fs = std::filesystem;
struct DiskMemUsageFilterTest : public ::testing::Test
{
DiskMemUsageFilter _filter;
using State = DiskMemUsageFilter::State;
using Config = DiskMemUsageFilter::Config;
DiskMemUsageFilterTest()
: _filter(HwInfo(HwInfo::Disk(100, false, false), HwInfo::Memory(1000), HwInfo::Cpu(0)))
{
_filter.set_resource_usage(TransientResourceUsage(), vespalib::ProcessMemoryStats(297, 298, 299, 300, 42), 20);
}
void testWrite(const vespalib::string &exp) {
if (exp.empty()) {
EXPECT_TRUE(_filter.acceptWriteOperation());
State state = _filter.getAcceptState();
EXPECT_TRUE(state.acceptWriteOperation());
EXPECT_EQ(exp, state.message());
} else {
EXPECT_FALSE(_filter.acceptWriteOperation());
State state = _filter.getAcceptState();
EXPECT_FALSE(state.acceptWriteOperation());
EXPECT_EQ(exp, state.message());
}
}
void triggerDiskLimit() {
_filter.set_resource_usage(_filter.get_transient_resource_usage(), _filter.getMemoryStats(), 90);
}
void triggerMemoryLimit()
{
_filter.set_resource_usage(TransientResourceUsage(), vespalib::ProcessMemoryStats(897, 898, 899, 900, 43), _filter.getDiskUsedSize());
}
};
TEST_F(DiskMemUsageFilterTest, default_filter_allows_write)
{
testWrite("");
}
TEST_F(DiskMemUsageFilterTest, stats_are_wired_through)
{
EXPECT_EQ(42u, _filter.getMemoryStats().getMappingsCount());
triggerMemoryLimit();
EXPECT_EQ(43u, _filter.getMemoryStats().getMappingsCount());
}
void
assertResourceUsage(double usage, double limit, double utilization, const ResourceUsageState &state)
{
EXPECT_EQ(usage, state.usage());
EXPECT_EQ(limit, state.limit());
EXPECT_DOUBLE_EQ(utilization, state.utilization());
}
TEST_F(DiskMemUsageFilterTest, reconfig_with_identical_config_is_noop)
{
EXPECT_TRUE(_filter.setConfig(Config(1.0, 0.8)));
assertResourceUsage(0.2, 0.8, 0.25, _filter.usageState().diskState());
EXPECT_FALSE(_filter.setConfig(Config(1.0, 0.8)));
assertResourceUsage(0.2, 0.8, 0.25, _filter.usageState().diskState());
}
TEST_F(DiskMemUsageFilterTest, disk_limit_can_be_reached)
{
EXPECT_TRUE(_filter.setConfig(Config(1.0, 0.8)));
assertResourceUsage(0.2, 0.8, 0.25, _filter.usageState().diskState());
triggerDiskLimit();
testWrite("diskLimitReached: { "
"action: \"add more content nodes\", "
"reason: \"disk used (0.9) > disk limit (0.8)\", "
"stats: { "
"capacity: 100, used: 90, diskUsed: 0.9, diskLimit: 0.8}}");
assertResourceUsage(0.9, 0.8, 1.125, _filter.usageState().diskState());
}
TEST_F(DiskMemUsageFilterTest, memory_limit_can_be_reached)
{
EXPECT_TRUE(_filter.setConfig(Config(0.8, 1.0)));
assertResourceUsage(0.3, 0.8, 0.375, _filter.usageState().memoryState());
triggerMemoryLimit();
testWrite("memoryLimitReached: { "
"action: \"add more content nodes\", "
"reason: \"memory used (0.9) > memory limit (0.8)\", "
"stats: { "
"mapped: { virt: 897, rss: 898}, "
"anonymous: { virt: 899, rss: 900}, "
"physicalMemory: 1000, memoryUsed: 0.9, memoryLimit: 0.8}}");
assertResourceUsage(0.9, 0.8, 1.125, _filter.usageState().memoryState());
}
TEST_F(DiskMemUsageFilterTest, both_disk_limit_and_memory_limit_can_be_reached)
{
EXPECT_TRUE(_filter.setConfig(Config(0.8, 0.8)));
triggerMemoryLimit();
triggerDiskLimit();
testWrite("memoryLimitReached: { "
"action: \"add more content nodes\", "
"reason: \"memory used (0.9) > memory limit (0.8)\", "
"stats: { "
"mapped: { virt: 897, rss: 898}, "
"anonymous: { virt: 899, rss: 900}, "
"physicalMemory: 1000, memoryUsed: 0.9, memoryLimit: 0.8}}, "
"diskLimitReached: { "
"action: \"add more content nodes\", "
"reason: \"disk used (0.9) > disk limit (0.8)\", "
"stats: { "
"capacity: 100, used: 90, diskUsed: 0.9, diskLimit: 0.8}}");
}
TEST_F(DiskMemUsageFilterTest, transient_and_non_transient_disk_usage_tracked_in_usage_state_and_metrics)
{
_filter.set_resource_usage({15, 0}, _filter.getMemoryStats(), _filter.getDiskUsedSize());
EXPECT_DOUBLE_EQ(0.15, _filter.usageState().transient_disk_usage());
EXPECT_DOUBLE_EQ(0.15, _filter.get_metrics().transient_disk_usage());
EXPECT_DOUBLE_EQ(0.05, _filter.usageState().non_transient_disk_usage());
EXPECT_DOUBLE_EQ(0.05, _filter.get_metrics().non_transient_disk_usage());
}
TEST_F(DiskMemUsageFilterTest, transient_and_non_transient_memory_usage_tracked_in_usage_state_and_metrics)
{
_filter.set_resource_usage({0, 100}, _filter.getMemoryStats(), _filter.getDiskUsedSize());
EXPECT_DOUBLE_EQ(0.1, _filter.usageState().transient_memory_usage());
EXPECT_DOUBLE_EQ(0.1, _filter.get_metrics().transient_memory_usage());
EXPECT_DOUBLE_EQ(0.2, _filter.usageState().non_transient_memory_usage());
EXPECT_DOUBLE_EQ(0.2, _filter.get_metrics().non_transient_memory_usage());
}
GTEST_MAIN_RUN_ALL_TESTS()
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