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redis_test.go
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package redis
import (
"bufio"
"fmt"
"strings"
"testing"
"time"
"github.com/influxdata/telegraf/testutil"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestRedisConnect(t *testing.T) {
if testing.Short() {
t.Skip("Skipping integration test in short mode")
}
addr := fmt.Sprintf(testutil.GetLocalHost() + ":6379")
r := &Redis{
Servers: []string{addr},
}
var acc testutil.Accumulator
err := acc.GatherError(r.Gather)
require.NoError(t, err)
}
func TestRedis_ParseMetrics(t *testing.T) {
var acc testutil.Accumulator
tags := map[string]string{"host": "redis.net"}
rdr := bufio.NewReader(strings.NewReader(testOutput))
err := gatherInfoOutput(rdr, &acc, tags)
require.NoError(t, err)
tags = map[string]string{"host": "redis.net", "replication_role": "master"}
fields := map[string]interface{}{
"uptime": int64(238),
"lru_clock": int64(2364819),
"clients": int64(1),
"client_longest_output_list": int64(0),
"client_biggest_input_buf": int64(0),
"blocked_clients": int64(0),
"used_memory": int64(1003936),
"used_memory_rss": int64(811008),
"used_memory_peak": int64(1003936),
"used_memory_lua": int64(33792),
"used_memory_peak_perc": float64(93.58),
"used_memory_dataset_perc": float64(20.27),
"mem_fragmentation_ratio": float64(0.81),
"loading": int64(0),
"rdb_changes_since_last_save": int64(0),
"rdb_bgsave_in_progress": int64(0),
"rdb_last_save_time": int64(1428427941),
"rdb_last_bgsave_status": "ok",
"rdb_last_bgsave_time_sec": int64(-1),
"rdb_current_bgsave_time_sec": int64(-1),
"aof_enabled": int64(0),
"aof_rewrite_in_progress": int64(0),
"aof_rewrite_scheduled": int64(0),
"aof_last_rewrite_time_sec": int64(-1),
"aof_current_rewrite_time_sec": int64(-1),
"aof_last_bgrewrite_status": "ok",
"aof_last_write_status": "ok",
"total_connections_received": int64(2),
"total_commands_processed": int64(1),
"instantaneous_ops_per_sec": int64(0),
"instantaneous_input_kbps": float64(876.16),
"instantaneous_output_kbps": float64(3010.23),
"rejected_connections": int64(0),
"sync_full": int64(0),
"sync_partial_ok": int64(0),
"sync_partial_err": int64(0),
"expired_keys": int64(0),
"evicted_keys": int64(0),
"keyspace_hits": int64(1),
"keyspace_misses": int64(1),
"pubsub_channels": int64(0),
"pubsub_patterns": int64(0),
"latest_fork_usec": int64(0),
"connected_slaves": int64(0),
"master_repl_offset": int64(0),
"repl_backlog_active": int64(0),
"repl_backlog_size": int64(1048576),
"repl_backlog_first_byte_offset": int64(0),
"repl_backlog_histlen": int64(0),
"second_repl_offset": int64(-1),
"used_cpu_sys": float64(0.14),
"used_cpu_user": float64(0.05),
"used_cpu_sys_children": float64(0.00),
"used_cpu_user_children": float64(0.00),
"keyspace_hitrate": float64(0.50),
"redis_version": "2.8.9",
}
// We have to test rdb_last_save_time_offset manually because the value is based on the time when gathered
for _, m := range acc.Metrics {
for k, v := range m.Fields {
if k == "rdb_last_save_time_elapsed" {
fields[k] = v
}
}
}
assert.InDelta(t,
time.Now().Unix()-fields["rdb_last_save_time"].(int64),
fields["rdb_last_save_time_elapsed"].(int64),
2) // allow for 2 seconds worth of offset
keyspaceTags := map[string]string{"host": "redis.net", "replication_role": "master", "database": "db0"}
keyspaceFields := map[string]interface{}{
"avg_ttl": int64(0),
"expires": int64(0),
"keys": int64(2),
}
acc.AssertContainsTaggedFields(t, "redis", fields, tags)
acc.AssertContainsTaggedFields(t, "redis_keyspace", keyspaceFields, keyspaceTags)
cmdstatSetTags := map[string]string{"host": "redis.net", "replication_role": "master", "command": "set"}
cmdstatSetFields := map[string]interface{}{
"calls": int64(261265),
"usec": int64(1634157),
"usec_per_call": float64(6.25),
}
acc.AssertContainsTaggedFields(t, "redis_cmdstat", cmdstatSetFields, cmdstatSetTags)
cmdstatCommandTags := map[string]string{"host": "redis.net", "replication_role": "master", "command": "command"}
cmdstatCommandFields := map[string]interface{}{
"calls": int64(1),
"usec": int64(990),
"usec_per_call": float64(990.0),
}
acc.AssertContainsTaggedFields(t, "redis_cmdstat", cmdstatCommandFields, cmdstatCommandTags)
}
const testOutput = `# Server
redis_version:2.8.9
redis_git_sha1:00000000
redis_git_dirty:0
redis_build_id:9ccc8119ea98f6e1
redis_mode:standalone
os:Darwin 14.1.0 x86_64
arch_bits:64
multiplexing_api:kqueue
gcc_version:4.2.1
process_id:40235
run_id:37d020620aadf0627282c0f3401405d774a82664
tcp_port:6379
uptime_in_seconds:238
uptime_in_days:0
hz:10
lru_clock:2364819
config_file:/usr/local/etc/redis.conf
# Clients
connected_clients:1
client_longest_output_list:0
client_biggest_input_buf:0
blocked_clients:0
# Memory
used_memory:1003936
used_memory_human:980.41K
used_memory_rss:811008
used_memory_peak:1003936
used_memory_peak_human:980.41K
used_memory_lua:33792
mem_fragmentation_ratio:0.81
mem_allocator:libc
used_memory_peak_perc:93.58%
used_memory_dataset_perc:20.27%
# Persistence
loading:0
rdb_changes_since_last_save:0
rdb_bgsave_in_progress:0
rdb_last_save_time:1428427941
rdb_last_bgsave_status:ok
rdb_last_bgsave_time_sec:-1
rdb_current_bgsave_time_sec:-1
aof_enabled:0
aof_rewrite_in_progress:0
aof_rewrite_scheduled:0
aof_last_rewrite_time_sec:-1
aof_current_rewrite_time_sec:-1
aof_last_bgrewrite_status:ok
aof_last_write_status:ok
# Stats
total_connections_received:2
total_commands_processed:1
instantaneous_ops_per_sec:0
instantaneous_input_kbps:876.16
instantaneous_output_kbps:3010.23
rejected_connections:0
sync_full:0
sync_partial_ok:0
sync_partial_err:0
expired_keys:0
evicted_keys:0
keyspace_hits:1
keyspace_misses:1
pubsub_channels:0
pubsub_patterns:0
latest_fork_usec:0
# Replication
role:master
connected_slaves:0
master_replid:8c4d7b768b26826825ceb20ff4a2c7c54616350b
master_replid2:0000000000000000000000000000000000000000
master_repl_offset:0
second_repl_offset:-1
repl_backlog_active:0
repl_backlog_size:1048576
repl_backlog_first_byte_offset:0
repl_backlog_histlen:0
# CPU
used_cpu_sys:0.14
used_cpu_user:0.05
used_cpu_sys_children:0.00
used_cpu_user_children:0.00
# Commandstats
cmdstat_set:calls=261265,usec=1634157,usec_per_call=6.25
cmdstat_command:calls=1,usec=990,usec_per_call=990.00
# Keyspace
db0:keys=2,expires=0,avg_ttl=0
(error) ERR unknown command 'eof'
`