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Improve redis input documentation (#2708)

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Alexander Blagoev 2017-05-02 21:43:07 +03:00 committed by Daniel Nelson
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2 changed files with 98 additions and 36 deletions
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1
CHANGELOG.md
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@ -120,6 +120,7 @@ be deprecated eventually.
- [#1911](https://github.com/influxdata/telegraf/issues/1911): Sysstat plugin needs LANG=C or similar locale - [#1911](https://github.com/influxdata/telegraf/issues/1911): Sysstat plugin needs LANG=C or similar locale
- [#2528](https://github.com/influxdata/telegraf/issues/2528): File output closes standard streams on reload. - [#2528](https://github.com/influxdata/telegraf/issues/2528): File output closes standard streams on reload.
- [#2603](https://github.com/influxdata/telegraf/issues/2603): AMQP output disconnect blocks all outputs - [#2603](https://github.com/influxdata/telegraf/issues/2603): AMQP output disconnect blocks all outputs
- [#2706](https://github.com/influxdata/telegraf/issues/2706): Improve documentation for redis input plugin
## v1.2.1 [2017-02-01] ## v1.2.1 [2017-02-01]

133
plugins/inputs/redis/README.md
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@ -18,47 +18,103 @@
### Measurements & Fields: ### Measurements & Fields:
- Measurement The plugin gathers the results of the [INFO](https://redis.io/commands/info) redis command.
- uptime_in_seconds There are two separate measurements: _redis_ and _redis\_keyspace_, the latter is used for gathering database related statistics.
- connected_clients
- used_memory Additionally the plugin also calculates the hit/miss ratio (keyspace\_hitrate) and the elapsed time since the last rdb save (rdb\_last\_save\_time\_elapsed).
- used_memory_rss
- used_memory_peak - redis
- used_memory_lua - keyspace_hitrate(float, number)
- rdb_changes_since_last_save - rdb_last_save_time_elapsed(int, seconds)
- total_connections_received
- total_commands_processed **Server**
- instantaneous_ops_per_sec - uptime(int, seconds)
- instantaneous_input_kbps - lru_clock(int, number)
- instantaneous_output_kbps
- sync_full **Clients**
- sync_partial_ok - clients(int, number)
- sync_partial_err - client_longest_output_list(int, number)
- expired_keys - client_biggest_input_buf(int, number)
- evicted_keys - blocked_clients(int, number)
- keyspace_hits
- keyspace_misses **Memory**
- pubsub_channels - used_memory(int, bytes)
- pubsub_patterns - used_memory_rss(int, bytes)
- latest_fork_usec - used_memory_peak(int, bytes)
- connected_slaves - total_system_memory(int, bytes)
- master_repl_offset - used_memory_lua(int, bytes)
- master_last_io_seconds_ago - maxmemory(int, bytes)
- repl_backlog_active - maxmemory_policy(string)
- repl_backlog_size - mem_fragmentation_ratio(float, number)
- repl_backlog_histlen
- mem_fragmentation_ratio **Persistance**
- used_cpu_sys - loading(int,flag)
- used_cpu_user - rdb_changes_since_last_save(int, number)
- used_cpu_sys_children - rdb_bgsave_in_progress(int, flag)
- used_cpu_user_children - rdb_last_save_time(int, seconds)
- rdb_last_bgsave_status(string)
- rdb_last_bgsave_time_sec(int, seconds)
- rdb_current_bgsave_time_sec(int, seconds)
- aof_enabled(int, flag)
- aof_rewrite_in_progress(int, flag)
- aof_rewrite_scheduled(int, flag)
- aof_last_rewrite_time_sec(int, seconds)
- aof_current_rewrite_time_sec(int, seconds)
- aof_last_bgrewrite_status(string)
- aof_last_write_status(string)
**Stats**
- total_connections_received(int, number)
- total_commands_processed(int, number)
- instantaneous_ops_per_sec(int, number)
- total_net_input_bytes(int, bytes)
- total_net_output_bytes(int, bytes)
- instantaneous_input_kbps(float, bytes)
- instantaneous_output_kbps(float, bytes)
- rejected_connections(int, number)
- sync_full(int, number)
- sync_partial_ok(int, number)
- sync_partial_err(int, number)
- expired_keys(int, number)
- evicted_keys(int, number)
- keyspace_hits(int, number)
- keyspace_misses(int, number)
- pubsub_channels(int, number)
- pubsub_patterns(int, number)
- latest_fork_usec(int, microseconds)
- migrate_cached_sockets(int, number)
**Replication**
- connected_slaves(int, number)
- master_repl_offset(int, number)
- repl_backlog_active(int, number)
- repl_backlog_size(int, bytes)
- repl_backlog_first_byte_offset(int, number)
- repl_backlog_histlen(int, bytes)
**CPU**
- used_cpu_sys(float, number)
- used_cpu_user(float, number)
- used_cpu_sys_children(float, number)
- used_cpu_user_children(float, number)
**Cluster**
- cluster_enabled(int, flag)
- redis_keyspace
- keys(int, number)
- expires(int, number)
- avg_ttl(int, number)
### Tags: ### Tags:
- All measurements have the following tags: - All measurements have the following tags:
- port - port
- server - server
- replication role - replication_role
- The redis_keyspace measurement has an additional database tag:
- database
### Example Output: ### Example Output:
@ -84,5 +140,10 @@ When run with:
It produces: It produces:
``` ```
* Plugin: redis, Collection 1 * Plugin: redis, Collection 1
> redis,port=6379,server=localhost clients=1i,connected_slaves=0i,evicted_keys=0i,expired_keys=0i,instantaneous_ops_per_sec=0i,keyspace_hitrate=0,keyspace_hits=0i,keyspace_misses=2i,latest_fork_usec=0i,master_repl_offset=0i,mem_fragmentation_ratio=3.58,pubsub_channels=0i,pubsub_patterns=0i,rdb_changes_since_last_save=0i,repl_backlog_active=0i,repl_backlog_histlen=0i,repl_backlog_size=1048576i,sync_full=0i,sync_partial_err=0i,sync_partial_ok=0i,total_commands_processed=4i,total_connections_received=2i,uptime=869i,used_cpu_sys=0.07,used_cpu_sys_children=0,used_cpu_user=0.1,used_cpu_user_children=0,used_memory=502048i,used_memory_lua=33792i,used_memory_peak=501128i,used_memory_rss=1798144i 1457052084987848383 > redis,server=localhost,port=6379,replication_role=master,host=host keyspace_hitrate=1,clients=2i,blocked_clients=0i,instantaneous_input_kbps=0,sync_full=0i,pubsub_channels=0i,pubsub_patterns=0i,total_net_output_bytes=6659253i,used_memory=842448i,total_system_memory=8351916032i,aof_current_rewrite_time_sec=-1i,rdb_changes_since_last_save=0i,sync_partial_err=0i,latest_fork_usec=508i,instantaneous_output_kbps=0,expired_keys=0i,used_memory_peak=843416i,aof_rewrite_in_progress=0i,aof_last_bgrewrite_status="ok",migrate_cached_sockets=0i,connected_slaves=0i,maxmemory_policy="noeviction",aof_rewrite_scheduled=0i,total_net_input_bytes=3125i,used_memory_rss=9564160i,repl_backlog_histlen=0i,rdb_last_bgsave_status="ok",aof_last_rewrite_time_sec=-1i,keyspace_misses=0i,client_biggest_input_buf=5i,used_cpu_user=1.33,maxmemory=0i,rdb_current_bgsave_time_sec=-1i,total_commands_processed=271i,repl_backlog_size=1048576i,used_cpu_sys=3,uptime=2822i,lru_clock=16706281i,used_memory_lua=37888i,rejected_connections=0i,sync_partial_ok=0i,evicted_keys=0i,rdb_last_save_time_elapsed=1922i,rdb_last_save_time=1493099368i,instantaneous_ops_per_sec=0i,used_cpu_user_children=0,client_longest_output_list=0i,master_repl_offset=0i,repl_backlog_active=0i,keyspace_hits=2i,used_cpu_sys_children=0,cluster_enabled=0i,rdb_last_bgsave_time_sec=0i,aof_last_write_status="ok",total_connections_received=263i,aof_enabled=0i,repl_backlog_first_byte_offset=0i,mem_fragmentation_ratio=11.35,loading=0i,rdb_bgsave_in_progress=0i 1493101290000000000
```
redis_keyspace:
```
> redis_keyspace,database=db1,host=host,server=localhost,port=6379,replication_role=master keys=1i,expires=0i,avg_ttl=0i 1493101350000000000
``` ```