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cluster_family_test.cc
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// Copyright 2023, DragonflyDB authors. All rights reserved.
// See LICENSE for licensing terms.
//
#include <absl/flags/reflection.h>
#include <gmock/gmock-matchers.h>
#include <gtest/gtest-matchers.h>
#include <string>
#include <string_view>
#include "absl/strings/str_replace.h"
#include "absl/strings/substitute.h"
#include "absl/time/clock.h"
#include "absl/time/time.h"
#include "base/gtest.h"
#include "base/logging.h"
#include "facade/facade_test.h"
#include "server/test_utils.h"
namespace dfly::cluster {
namespace {
using namespace std;
using namespace testing;
class ClusterFamilyTest : public BaseFamilyTest {
public:
ClusterFamilyTest() {
SetTestFlag("cluster_mode", "yes");
}
protected:
static constexpr string_view kInvalidConfiguration = "Invalid cluster configuration";
string GetMyId() {
return Run({"cluster", "myid"}).GetString();
}
void ConfigSingleNodeCluster(string id) {
string config_template = R"json(
[
{
"slot_ranges": [
{
"start": 0,
"end": 16383
}
],
"master": {
"id": "$0",
"ip": "10.0.0.1",
"port": 7000,
"health": "online"
},
"replicas": []
}
])json";
string config = absl::Substitute(config_template, id);
EXPECT_EQ(RunPrivileged({"dflycluster", "config", config}), "OK");
}
};
TEST_F(ClusterFamilyTest, ClusterConfigInvalidJSON) {
EXPECT_THAT(RunPrivileged({"dflycluster", "config", "invalid JSON"}),
ErrArg("Invalid cluster configuration."));
string cluster_info = Run({"cluster", "info"}).GetString();
EXPECT_THAT(cluster_info, HasSubstr("cluster_state:fail"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_slots_assigned:0"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_slots_ok:0"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_known_nodes:0"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_size:0"));
EXPECT_THAT(Run({"cluster", "shards"}), ErrArg("Cluster is not yet configured"));
EXPECT_THAT(Run({"cluster", "slots"}), ErrArg("Cluster is not yet configured"));
EXPECT_THAT(Run({"cluster", "nodes"}), ErrArg("Cluster is not yet configured"));
}
TEST_F(ClusterFamilyTest, ClusterConfigInvalidConfig) {
EXPECT_THAT(RunPrivileged({"dflycluster", "config", "[]"}), ErrArg(kInvalidConfiguration));
string cluster_info = Run({"cluster", "info"}).GetString();
EXPECT_THAT(cluster_info, HasSubstr("cluster_state:fail"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_slots_assigned:0"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_slots_ok:0"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_known_nodes:0"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_size:0"));
}
TEST_F(ClusterFamilyTest, ClusterConfigInvalidMissingSlots) {
EXPECT_THAT(RunPrivileged({"dflycluster", "config", R"json(
[
{
"slot_ranges": [
{
"start": 0,
"end": 100
}
],
"master": {
"id": "abcd1234",
"ip": "10.0.0.1",
"port": 7000
},
"replicas": []
}
])json"}),
ErrArg(kInvalidConfiguration));
string cluster_info = Run({"cluster", "info"}).GetString();
EXPECT_THAT(cluster_info, HasSubstr("cluster_state:fail"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_slots_assigned:0"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_slots_ok:0"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_known_nodes:0"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_size:0"));
}
TEST_F(ClusterFamilyTest, ClusterConfigInvalidOverlappingSlots) {
EXPECT_THAT(RunPrivileged({"dflycluster", "config", R"json(
[
{
"slot_ranges": [
{
"start": 0,
"end": 1000
}
],
"master": {
"id": "abcd1234",
"ip": "10.0.0.1",
"port": 7000
},
"replicas": []
},
{
"slot_ranges": [
{
"start": 800,
"end": 16383
}
],
"master": {
"id": "abcd1234",
"ip": "10.0.0.1",
"port": 7000
},
"replicas": []
}
])json"}),
ErrArg(kInvalidConfiguration));
string cluster_info = Run({"cluster", "info"}).GetString();
EXPECT_THAT(cluster_info, HasSubstr("cluster_state:fail"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_slots_assigned:0"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_slots_ok:0"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_known_nodes:0"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_size:0"));
}
TEST_F(ClusterFamilyTest, ClusterConfigNoReplicas) {
ConfigSingleNodeCluster("abcd1234");
string cluster_info = Run({"cluster", "info"}).GetString();
EXPECT_THAT(cluster_info, HasSubstr("cluster_state:ok"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_slots_assigned:16384"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_slots_ok:16384"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_known_nodes:1"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_size:1"));
EXPECT_THAT(Run({"cluster", "shards"}),
RespArray(ElementsAre("slots", //
RespArray(ElementsAre(IntArg(0), IntArg(16'383))), //
"nodes", //
RespArray(ElementsAre( //
RespArray(ElementsAre( //
"id", "abcd1234", //
"endpoint", "10.0.0.1", //
"ip", "10.0.0.1", //
"port", IntArg(7000), //
"role", "master", //
"replication-offset", IntArg(0), //
"health", "online")))))));
EXPECT_THAT(Run({"get", "x"}).GetString(),
testing::MatchesRegex(R"(MOVED [0-9]+ 10.0.0.1:7000)"));
EXPECT_THAT(Run({"cluster", "slots"}),
RespArray(ElementsAre(IntArg(0), //
IntArg(16'383), //
RespArray(ElementsAre( //
"10.0.0.1", //
IntArg(7'000), //
"abcd1234")))));
EXPECT_EQ(Run({"cluster", "nodes"}),
"abcd1234 10.0.0.1:7000@7000 master - 0 0 0 connected 0-16383\n");
}
TEST_F(ClusterFamilyTest, ClusterConfigFull) {
EXPECT_EQ(RunPrivileged({"dflycluster", "config", R"json(
[
{
"slot_ranges": [
{
"start": 0,
"end": 16383
}
],
"master": {
"id": "abcd1234",
"ip": "10.0.0.1",
"port": 7000,
"health": "online"
},
"replicas": [
{
"id": "wxyz",
"ip": "10.0.0.10",
"port": 8000,
"health": "online"
}
]
}
])json"}),
"OK");
string cluster_info = RunPrivileged({"cluster", "info"}).GetString();
EXPECT_THAT(cluster_info, HasSubstr("cluster_state:ok"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_slots_assigned:16384"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_slots_ok:16384"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_known_nodes:2"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_size:1"));
EXPECT_THAT(RunPrivileged({"cluster", "shards"}),
RespArray(ElementsAre("slots", //
RespArray(ElementsAre(IntArg(0), IntArg(16'383))), //
"nodes", //
RespArray(ElementsAre( //
RespArray(ElementsAre( //
"id", "abcd1234", //
"endpoint", "10.0.0.1", //
"ip", "10.0.0.1", //
"port", IntArg(7000), //
"role", "master", //
"replication-offset", IntArg(0), //
"health", "online")), //
RespArray(ElementsAre( //
"id", "wxyz", //
"endpoint", "10.0.0.10", //
"ip", "10.0.0.10", //
"port", IntArg(8000), //
"role", "replica", //
"replication-offset", IntArg(0), //
"health", "online")))))));
EXPECT_THAT(RunPrivileged({"cluster", "slots"}),
RespArray(ElementsAre(IntArg(0), //
IntArg(16'383), //
RespArray(ElementsAre( //
"10.0.0.1", //
IntArg(7'000), //
"abcd1234")), //
RespArray(ElementsAre( //
"10.0.0.10", //
IntArg(8'000), //
"wxyz")))));
EXPECT_EQ(RunPrivileged({"cluster", "nodes"}),
"abcd1234 10.0.0.1:7000@7000 master - 0 0 0 connected 0-16383\n"
"wxyz 10.0.0.10:8000@8000 slave abcd1234 0 0 0 connected\n");
}
TEST_F(ClusterFamilyTest, ClusterConfigFullMultipleInstances) {
EXPECT_EQ(RunPrivileged({"dflycluster", "config", R"json(
[
{
"slot_ranges": [
{
"start": 0,
"end": 10000
}
],
"master": {
"id": "abcd1234",
"ip": "10.0.0.1",
"port": 7000,
"health": "fail"
},
"replicas": [
{
"id": "wxyz",
"ip": "10.0.0.10",
"port": 8000,
"health": "online"
}
]
},
{
"slot_ranges": [
{
"start": 10001,
"end": 16383
}
],
"master": {
"id": "efgh7890",
"ip": "10.0.0.2",
"port": 7001,
"health": "online"
},
"replicas": [
{
"id": "qwerty",
"ip": "10.0.0.11",
"port": 8001,
"health": "online"
},
{
"id": "qwerty1",
"ip": "10.0.0.12",
"port": 8002,
"health": "loading"
},
{
"id": "qwerty2",
"ip": "10.0.0.13",
"port": 8003,
"health": "fail"
},
{
"id": "qwerty3",
"ip": "10.0.0.14",
"port": 8004,
"health": "hidden"
}
]
}
])json"}),
"OK");
string cluster_info = RunPrivileged({"cluster", "info"}).GetString();
EXPECT_THAT(cluster_info, HasSubstr("cluster_state:ok"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_slots_assigned:16384"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_slots_ok:16384"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_known_nodes:7"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_size:2"));
EXPECT_THAT(RunPrivileged({"cluster", "shards"}),
RespArray(ElementsAre(
RespArray(ElementsAre("slots", //
RespArray(ElementsAre(IntArg(0), IntArg(10'000))), //
"nodes", //
RespArray(ElementsAre( //
RespArray(ElementsAre( //
"id", "abcd1234", //
"endpoint", "10.0.0.1", //
"ip", "10.0.0.1", //
"port", IntArg(7000), //
"role", "master", //
"replication-offset", IntArg(0), //
"health", "fail")), //
RespArray(ElementsAre( //
"id", "wxyz", //
"endpoint", "10.0.0.10", //
"ip", "10.0.0.10", //
"port", IntArg(8000), //
"role", "replica", //
"replication-offset", IntArg(0), //
"health", "online")))))), //
RespArray(ElementsAre("slots", //
RespArray(ElementsAre(IntArg(10'001), IntArg(16'383))), //
"nodes", //
RespArray(ElementsAre( //
RespArray(ElementsAre( //
"id", "efgh7890", //
"endpoint", "10.0.0.2", //
"ip", "10.0.0.2", //
"port", IntArg(7001), //
"role", "master", //
"replication-offset", IntArg(0), //
"health", "online")), //
RespArray(ElementsAre( //
"id", "qwerty", //
"endpoint", "10.0.0.11", //
"ip", "10.0.0.11", //
"port", IntArg(8001), //
"role", "replica", //
"replication-offset", IntArg(0), //
"health", "online")), //
RespArray(ElementsAre( //
"id", "qwerty1", //
"endpoint", "10.0.0.12", //
"ip", "10.0.0.12", //
"port", IntArg(8002), //
"role", "replica", //
"replication-offset", IntArg(0), //
"health", "loading")), //
RespArray(ElementsAre( //
"id", "qwerty2", //
"endpoint", "10.0.0.13", //
"ip", "10.0.0.13", //
"port", IntArg(8003), //
"role", "replica", //
"replication-offset", IntArg(0), //
"health", "fail")))))))));
EXPECT_THAT(RunPrivileged({"cluster", "slots"}),
RespArray(ElementsAre( //
RespArray(ElementsAre(IntArg(0), //
IntArg(10'000), //
RespArray(ElementsAre( //
"10.0.0.1", //
IntArg(7'000), //
"abcd1234")), //
RespArray(ElementsAre( //
"10.0.0.10", //
IntArg(8'000), //
"wxyz")))), //
RespArray(ElementsAre(IntArg(10'001), //
IntArg(16'383), //
RespArray(ElementsAre( //
"10.0.0.2", //
IntArg(7'001), //
"efgh7890")), //
RespArray(ElementsAre( //
"10.0.0.11", //
IntArg(8'001), //
"qwerty")))))));
EXPECT_THAT(RunPrivileged({"cluster", "nodes"}),
"abcd1234 10.0.0.1:7000@7000 master - 0 0 0 disconnected 0-10000\n"
"wxyz 10.0.0.10:8000@8000 slave abcd1234 0 0 0 connected\n"
"efgh7890 10.0.0.2:7001@7001 master - 0 0 0 connected 10001-16383\n"
"qwerty 10.0.0.11:8001@8001 slave efgh7890 0 0 0 connected\n"
"qwerty1 10.0.0.12:8002@8002 slave efgh7890 0 0 0 connected\n"
"qwerty2 10.0.0.13:8003@8003 slave efgh7890 0 0 0 disconnected\n");
absl::InsecureBitGen eng;
while (true) {
string random_key = GetRandomHex(eng, 40);
SlotId slot = KeySlot(random_key);
if (slot > 10'000) {
continue;
}
EXPECT_THAT(Run({"get", random_key}).GetString(),
testing::MatchesRegex(R"(MOVED [0-9]+ 10.0.0.1:7000)"));
break;
}
while (true) {
string random_key = GetRandomHex(eng, 40);
SlotId slot = KeySlot(random_key);
if (slot <= 10'000) {
continue;
}
EXPECT_THAT(Run({"get", random_key}).GetString(),
testing::MatchesRegex(R"(MOVED [0-9]+ 10.0.0.2:7001)"));
break;
}
}
TEST_F(ClusterFamilyTest, ClusterGetSlotInfoInvalid) {
constexpr string_view kErr = "ERR syntax error";
EXPECT_THAT(RunPrivileged({"dflycluster", "getslotinfo"}), ErrArg(kErr));
EXPECT_THAT(RunPrivileged({"dflycluster", "getslotinfo", "s"}), ErrArg(kErr));
EXPECT_THAT(RunPrivileged({"dflycluster", "getslotinfo", "slots"}), ErrArg(kErr));
}
TEST_F(ClusterFamilyTest, ClusterGetSlotInfo) {
ConfigSingleNodeCluster(GetMyId());
constexpr string_view kKey = "some-key";
const SlotId slot = KeySlot(kKey);
EXPECT_NE(slot, 0) << "We need to choose another key";
const string value(1'000, '#'); // Long string - to use heap
EXPECT_EQ(Run({"SET", kKey, value}), "OK");
EXPECT_THAT(
RunPrivileged({"dflycluster", "getslotinfo", "slots", "0", absl::StrCat(slot)}),
RespArray(ElementsAre(
RespArray(ElementsAre(IntArg(0), "key_count", IntArg(0), "total_reads", IntArg(0),
"total_writes", IntArg(0), "memory_bytes", IntArg(0))),
RespArray(ElementsAre(IntArg(slot), "key_count", IntArg(1), "total_reads", IntArg(0),
"total_writes", IntArg(1), "memory_bytes", Not(IntArg(0)))))));
EXPECT_EQ(Run({"GET", kKey}), value);
EXPECT_THAT(
RunPrivileged({"dflycluster", "getslotinfo", "slots", "0", absl::StrCat(slot)}),
RespArray(ElementsAre(
RespArray(ElementsAre(IntArg(0), "key_count", IntArg(0), "total_reads", IntArg(0),
"total_writes", IntArg(0), "memory_bytes", IntArg(0))),
RespArray(ElementsAre(IntArg(slot), "key_count", IntArg(1), "total_reads", IntArg(1),
"total_writes", IntArg(1), "memory_bytes", Not(IntArg(0)))))));
EXPECT_EQ(Run({"SET", kKey, "value2"}), "OK");
EXPECT_THAT(
RunPrivileged({"dflycluster", "getslotinfo", "slots", "0", absl::StrCat(slot)}),
RespArray(ElementsAre(
RespArray(ElementsAre(IntArg(0), "key_count", IntArg(0), "total_reads", IntArg(0),
"total_writes", IntArg(0), "memory_bytes", IntArg(0))),
RespArray(ElementsAre(IntArg(slot), "key_count", IntArg(1), "total_reads", IntArg(1),
"total_writes", IntArg(2), "memory_bytes", IntArg(0))))));
}
TEST_F(ClusterFamilyTest, ClusterSlotsPopulate) {
ConfigSingleNodeCluster(GetMyId());
Run({"debug", "populate", "10000", "key", "4", "SLOTS", "0", "1000"});
for (int i = 0; i <= 1'000; ++i) {
EXPECT_THAT(RunPrivileged({"dflycluster", "getslotinfo", "slots", absl::StrCat(i)}),
RespArray(ElementsAre(IntArg(i), "key_count", Not(IntArg(0)), _, _, _, _, _, _)));
}
for (int i = 1'001; i <= 16'383; ++i) {
EXPECT_THAT(RunPrivileged({"dflycluster", "getslotinfo", "slots", absl::StrCat(i)}),
RespArray(ElementsAre(IntArg(i), "key_count", IntArg(0), _, _, _, _, _, _)));
}
}
TEST_F(ClusterFamilyTest, ClusterEvalCrossslot) {
ConfigSingleNodeCluster(GetMyId());
auto res = Run({"EVAL", "return redis.call('MSET', 'x1', 'x1', 'x2', 'x2', 'x3', 'x3');", "3",
"x1", "x2", "x3"});
EXPECT_THAT(res, ErrArg("CROSSSLOT"));
auto sha =
Run({"SCRPIT", "LOAD", "return redis.call('MSET', 'x1', 'x1', 'x2', 'x2', 'x3', 'x3');", "3",
"x1", "x2", "x3"});
EXPECT_THAT(Run({"EVALSHA", sha.GetString(), "3", "x1", "x2", "x3"}), ErrArg("CROSSSLOT"));
}
TEST_F(ClusterFamilyTest, ClusterMultiExec) {
ConfigSingleNodeCluster(GetMyId());
Run({"MULTI"});
Run({"SET", "X1", "X1"});
Run({"SET", "X2", "X2"});
Run({"SET", "X3", "X3"});
EXPECT_THAT(Run({"EXEC"}), ErrArg("CROSSSLOT"));
}
TEST_F(ClusterFamilyTest, ClusterConfigDeleteSlots) {
ConfigSingleNodeCluster(GetMyId());
Run({"debug", "populate", "100000"});
EXPECT_THAT(
RunPrivileged({"dflycluster", "getslotinfo", "slots", "1", "2"}),
RespArray(ElementsAre(
RespArray(ElementsAre(IntArg(1), "key_count", Not(IntArg(0)), "total_reads", IntArg(0),
"total_writes", Not(IntArg(0)), "memory_bytes", IntArg(0))),
RespArray(ElementsAre(IntArg(2), "key_count", Not(IntArg(0)), "total_reads", IntArg(0),
"total_writes", Not(IntArg(0)), "memory_bytes", IntArg(0))))));
ConfigSingleNodeCluster("abc");
ExpectConditionWithinTimeout([&]() { return CheckedInt({"dbsize"}) == 0; });
EXPECT_THAT(
RunPrivileged({"dflycluster", "getslotinfo", "slots", "1", "2"}),
RespArray(ElementsAre(
RespArray(ElementsAre(IntArg(1), "key_count", IntArg(0), "total_reads", IntArg(0),
"total_writes", Not(IntArg(0)), "memory_bytes", IntArg(0))),
RespArray(ElementsAre(IntArg(2), "key_count", IntArg(0), "total_reads", IntArg(0),
"total_writes", Not(IntArg(0)), "memory_bytes", IntArg(0))))));
}
// Test issue #1302
TEST_F(ClusterFamilyTest, ClusterConfigDeleteSlotsNoCrashOnShutdown) {
ConfigSingleNodeCluster(GetMyId());
Run({"debug", "populate", "100000"});
EXPECT_THAT(
RunPrivileged({"dflycluster", "getslotinfo", "slots", "1", "2"}),
RespArray(ElementsAre(
RespArray(ElementsAre(IntArg(1), "key_count", Not(IntArg(0)), "total_reads", IntArg(0),
"total_writes", Not(IntArg(0)), "memory_bytes", IntArg(0))),
RespArray(ElementsAre(IntArg(2), "key_count", Not(IntArg(0)), "total_reads", IntArg(0),
"total_writes", Not(IntArg(0)), "memory_bytes", IntArg(0))))));
// After running the new config we start a fiber that removes all slots from current instance
// we immediately shut down to test that we do not crash.
ConfigSingleNodeCluster("abc");
}
TEST_F(ClusterFamilyTest, ClusterConfigDeleteSomeSlots) {
string config_template = R"json(
[
{
"slot_ranges": [
{
"start": 0,
"end": $1
}
],
"master": {
"id": "$0",
"ip": "10.0.0.1",
"port": 7000
},
"replicas": []
},
{
"slot_ranges": [
{
"start": $2,
"end": 16383
}
],
"master": {
"id": "other",
"ip": "10.0.0.2",
"port": 7000
},
"replicas": []
}
])json";
string config = absl::Substitute(config_template, GetMyId(), "8000", "8001");
EXPECT_EQ(RunPrivileged({"dflycluster", "config", config}), "OK");
Run({"debug", "populate", "1", "key", "4", "SLOTS", "7999", "7999"});
Run({"debug", "populate", "2", "key", "4", "SLOTS", "8000", "8000"});
EXPECT_THAT(RunPrivileged({"dflycluster", "getslotinfo", "slots", "7999", "8000"}),
RespArray(ElementsAre(
RespArray(ElementsAre(IntArg(7999), "key_count", IntArg(1), _, _, _, _, _, _)),
RespArray(ElementsAre(IntArg(8000), "key_count", IntArg(2), _, _, _, _, _, _)))));
EXPECT_THAT(Run({"dbsize"}), IntArg(3));
// Move ownership over 8000 to other master
config = absl::Substitute(config_template, GetMyId(), "7999", "8000");
EXPECT_EQ(RunPrivileged({"dflycluster", "config", config}), "OK");
// Verify that keys for slot 8000 were deleted, while key for slot 7999 was kept
ExpectConditionWithinTimeout([&]() { return CheckedInt({"dbsize"}) == 1; });
EXPECT_THAT(RunPrivileged({"dflycluster", "getslotinfo", "slots", "7999", "8000"}),
RespArray(ElementsAre(
RespArray(ElementsAre(IntArg(7999), "key_count", IntArg(1), _, _, _, _, _, _)),
RespArray(ElementsAre(IntArg(8000), "key_count", IntArg(0), _, _, _, _, _, _)))));
}
TEST_F(ClusterFamilyTest, ClusterModeSelectNotAllowed) {
EXPECT_THAT(Run({"select", "1"}), ErrArg("SELECT is not allowed in cluster mode"));
EXPECT_EQ(Run({"select", "0"}), "OK");
}
TEST_F(ClusterFamilyTest, ClusterModePubSubNotAllowed) {
EXPECT_THAT(Run({"PUBLISH", "ch", "message"}),
ErrArg("PUBLISH is not supported in cluster mode yet"));
EXPECT_THAT(Run({"SUBSCRIBE", "ch"}), ErrArg("SUBSCRIBE is not supported in cluster mode yet"));
EXPECT_THAT(Run({"UNSUBSCRIBE", "ch"}),
ErrArg("UNSUBSCRIBE is not supported in cluster mode yet"));
EXPECT_THAT(Run({"PSUBSCRIBE", "ch?"}),
ErrArg("PSUBSCRIBE is not supported in cluster mode yet"));
EXPECT_THAT(Run({"PUNSUBSCRIBE", "ch?"}),
ErrArg("PUNSUBSCRIBE is not supported in cluster mode yet"));
}
TEST_F(ClusterFamilyTest, ClusterFirstConfigCallDropsEntriesNotOwnedByNode) {
InitWithDbFilename();
Run({"debug", "populate", "50000"});
EXPECT_EQ(Run({"save", "df"}), "OK");
auto save_info = service_->server_family().GetLastSaveInfo();
EXPECT_EQ(Run({"dfly", "load", save_info.file_name}), "OK");
EXPECT_EQ(CheckedInt({"dbsize"}), 50000);
ConfigSingleNodeCluster("abcd1234");
// Make sure `dbsize` all slots were removed
ExpectConditionWithinTimeout([&]() { return CheckedInt({"dbsize"}) == 0; });
}
TEST_F(ClusterFamilyTest, SnapshotBiggerThanMaxMemory) {
InitWithDbFilename();
ConfigSingleNodeCluster(GetMyId());
Run({"debug", "populate", "50000"});
EXPECT_EQ(Run({"save", "df"}), "OK");
max_memory_limit = 10000;
auto save_info = service_->server_family().GetLastSaveInfo();
EXPECT_EQ(Run({"dfly", "load", save_info.file_name}), "OK");
}
TEST_F(ClusterFamilyTest, Keyslot) {
// Example from Redis' command reference: https://redis.io/commands/cluster-keyslot/
EXPECT_THAT(Run({"cluster", "keyslot", "somekey"}), IntArg(11'058));
// Test hash tags
EXPECT_THAT(Run({"cluster", "keyslot", "prefix{somekey}suffix"}), IntArg(11'058));
EXPECT_EQ(CheckedInt({"cluster", "keyslot", "abc{def}ghi"}),
CheckedInt({"cluster", "keyslot", "123{def}456"}));
}
TEST_F(ClusterFamilyTest, FlushSlots) {
EXPECT_EQ(Run({"debug", "populate", "100", "key", "4", "slots", "0", "1"}), "OK");
EXPECT_THAT(RunPrivileged({"dflycluster", "getslotinfo", "slots", "0", "1"}),
RespArray(ElementsAre(
RespArray(ElementsAre(IntArg(0), "key_count", Not(IntArg(0)), "total_reads", _,
"total_writes", _, "memory_bytes", _)),
RespArray(ElementsAre(IntArg(1), "key_count", Not(IntArg(0)), "total_reads", _,
"total_writes", _, "memory_bytes", _)))));
ExpectConditionWithinTimeout([&]() {
return RunPrivileged({"dflycluster", "flushslots", "0", "0"}) == "OK";
});
EXPECT_THAT(RunPrivileged({"dflycluster", "getslotinfo", "slots", "0", "1"}),
RespArray(ElementsAre(
RespArray(ElementsAre(IntArg(0), "key_count", IntArg(0), "total_reads", _,
"total_writes", _, "memory_bytes", _)),
RespArray(ElementsAre(IntArg(1), "key_count", Not(IntArg(0)), "total_reads", _,
"total_writes", _, "memory_bytes", _)))));
EXPECT_EQ(RunPrivileged({"dflycluster", "flushslots", "0", "1"}), "OK");
EXPECT_THAT(
RunPrivileged({"dflycluster", "getslotinfo", "slots", "0", "1"}),
RespArray(ElementsAre(RespArray(ElementsAre(IntArg(0), "key_count", IntArg(0), "total_reads",
_, "total_writes", _, "memory_bytes", _)),
RespArray(ElementsAre(IntArg(1), "key_count", IntArg(0), "total_reads",
_, "total_writes", _, "memory_bytes", _)))));
}
TEST_F(ClusterFamilyTest, FlushSlotsAndImmediatelySetValue) {
for (int count : {1, 10, 100, 1000, 10000, 100000}) {
ConfigSingleNodeCluster(GetMyId());
EXPECT_EQ(Run({"debug", "populate", absl::StrCat(count), "key", "4"}), "OK");
EXPECT_EQ(Run({"get", "key:0"}), "xxxx");
EXPECT_THAT(Run({"cluster", "keyslot", "key:0"}), IntArg(2592));
EXPECT_THAT(Run({"dbsize"}), IntArg(count));
auto slot_size_response = Run({"dflycluster", "getslotinfo", "slots", "2592"});
EXPECT_THAT(slot_size_response, RespArray(ElementsAre(_, "key_count", _, "total_reads", _,
"total_writes", _, "memory_bytes", _)));
auto slot_size = slot_size_response.GetVec()[2].GetInt();
EXPECT_TRUE(slot_size.has_value());
EXPECT_EQ(Run({"dflycluster", "flushslots", "2592", "2592"}), "OK");
// key:0 should have been removed, so APPEND will end up with key:0 == ZZZZ
EXPECT_THAT(Run({"append", "key:0", "ZZZZ"}), IntArg(4));
EXPECT_EQ(Run({"get", "key:0"}), "ZZZZ");
// db size should be count - (size of slot 2592) + 1, where 1 is for 'key:0'
ExpectConditionWithinTimeout(
[&]() { return CheckedInt({"dbsize"}) == (count - *slot_size + 1); });
ResetService();
}
}
TEST_F(ClusterFamilyTest, ClusterCrossSlot) {
ConfigSingleNodeCluster(GetMyId());
EXPECT_EQ(Run({"SET", "key", "value"}), "OK");
EXPECT_EQ(Run({"GET", "key"}), "value");
EXPECT_EQ(Run({"MSET", "key", "value2"}), "OK");
EXPECT_EQ(Run({"MGET", "key"}), "value2");
EXPECT_THAT(Run({"MSET", "key", "value", "key2", "value2"}), ErrArg("CROSSSLOT"));
EXPECT_THAT(Run({"MGET", "key", "key2"}), ErrArg("CROSSSLOT"));
EXPECT_THAT(Run({"ZINTERSTORE", "key", "2", "key1", "key2"}), ErrArg("CROSSSLOT"));
EXPECT_EQ(Run({"MSET", "key{tag}", "value", "key2{tag}", "value2"}), "OK");
EXPECT_THAT(Run({"MGET", "key{tag}", "key2{tag}"}), RespArray(ElementsAre("value", "value2")));
}
class ClusterFamilyEmulatedTest : public ClusterFamilyTest {
public:
ClusterFamilyEmulatedTest() {
SetTestFlag("cluster_mode", "emulated");
SetTestFlag("cluster_announce_ip", "fake-host");
}
};
TEST_F(ClusterFamilyEmulatedTest, ClusterInfo) {
string cluster_info = Run({"cluster", "info"}).GetString();
EXPECT_THAT(cluster_info, HasSubstr("cluster_state:ok"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_slots_assigned:16384"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_slots_ok:16384"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_known_nodes:1"));
EXPECT_THAT(cluster_info, HasSubstr("cluster_size:1"));
}
TEST_F(ClusterFamilyEmulatedTest, ClusterShardInfos) {
EXPECT_THAT(Run({"cluster", "shards"}),
RespArray(ElementsAre("slots", //
RespArray(ElementsAre(IntArg(0), IntArg(16383))), //
"nodes", //
RespArray(ElementsAre( //
RespArray(ElementsAre( //
"id", GetMyId(), //
"endpoint", "fake-host", //
"ip", "fake-host", //
"port", IntArg(6379), //
"role", "master", //
"replication-offset", IntArg(0), //
"health", "online")))))));
}
TEST_F(ClusterFamilyEmulatedTest, ClusterSlots) {
EXPECT_THAT(Run({"cluster", "slots"}),
RespArray(ElementsAre(IntArg(0), //
IntArg(16383), //
RespArray(ElementsAre( //
"fake-host", //
IntArg(6379), //
GetMyId())))));
}
TEST_F(ClusterFamilyEmulatedTest, ClusterNodes) {
auto res = Run({"cluster", "nodes"});
EXPECT_THAT(res, GetMyId() + " fake-host:6379@6379 myself,master - 0 0 0 connected 0-16383\n");
}
TEST_F(ClusterFamilyEmulatedTest, ForbidenCommands) {
auto res = Run({"DFLYCLUSTER", "GETSLOTINFO", "SLOTS", "1"});
EXPECT_THAT(res, ErrArg("Cluster is disabled. Use --cluster_mode=yes to enable."));
}
} // namespace
} // namespace dfly::cluster