influxDB 入门教程及使用过程中遇到的问题

一、安装与使用

1、下载地址
GitHUb： https://github.com/Muscleape/influxdb_demo
64位程序： https://dl.influx data.com/influxdb/releases/influxdb-1.7.4_windows_amd64.zip
2、解压安装包

 3、修改配置文件
InfluxDB 的数据存储主要有三个目录。默认情况下是 meta, wal 以及 data 三个目录，服务器运行后会自动生成。
meta
用于存储数据库的一些元数据，meta 目录下有一个 meta.db 文件。
wal
目录存放预写日志文件，以 .wal 结尾。
data 
目录存放实际存储的数据文件，以 .tsm 结尾。

如果不使用 influxdb.conf 配置的话，那么直接双击打开 influxd.exe 就可以使用influx，此时上面三个文件夹的目录则存放在Windows系统的C盘User目录下的.Influx目录下，默认端口为8086，以下为修改文件夹地址，以及端口号方法。

（1）修改以下部分路径

（2）如果修改端口号，则修改以下部分配置

​

（3）修改配置后启动方式

　　InfluxDB 使用时需要首先打开Influxd.exe，直接打开会使用默认配置，需要使用已配置的配置文件的话，需要指定conf文件进行启动，启动命令：influxd --config influxdb.conf

​

 如果出现下列情况，启动失败，还需要修改influxdb.con

​

   在influxdb.conf中修改如下一行，修改地址并且打开注释，修改后保存

​

     再次运行 influxd --config influxdb.conf 命令;出现如下信息启动成功

​

  （4）、启动influx后，窗口不要关闭，在启动一个cmd窗口，执行如下命令 influx

　InfluxDB自带一个客户端程序influx，可用来增删改查等操作数据库。

influx 客户端指定端口号访问，-port是使用特定port号启动

influx.exe -port 8083

4、开启InfluxDb

可以直接打开Influxd.exe,也可以采用命令启动，

使用命令时可以指定配置文件和端口号。（ 运行influx.exe 时，influxd.exe不可关闭。）

 启动成功

5、其他配置
官方文档：https://archive.docs.influxdata.com/influxdb/v1.2/administration/config/
一些配置项的汉化注释已加在文件中

6、常用操作(使用)
在 Influxd.exe 正常运行的情况下打开 Influx.exe，链接成功后如图所示，若链接失败需要检查地址和端口是否一致

1. influxdb数据库操作
show databases                 查看有什么数据库
 
create database shijiange  创建数据库，数据库名称为shijiange 
 
drop database shijiange     删除数据库，数据库名称为shijiange 

2.measurement(类似于表)操作
use shijiange               #操作哪个库需要用use
 
show measurements           #查询所有measurement  (没有表则不返回)
 
insert cpuinfo,item=shijiange_47.105.99.75_cpu.idle value=90   

select * from cpuinfo           #查询所有cpuinfo的数据
 
drop measurement cpuinfo        #删除measurement

update更新语句没有，不过有alter命令，在influxdb中，删除操作用和更新基本不用到 。在针对数据保存策略方面，有一个特殊的删除方式，这个后面再提。

例子：插入数据的格式

insert cpuinfo(measurement：表名),item=shijiange_1.1.1.1_cpu.idle(tags：数据标识) value=90(fields：数据)

其中item和value名字都可以变化

3.influxdb常用查询和删除操作
select * from cpuinfo
 
select * from cpuinfo limit 2 #如果数据量太大，得使用limit，限制输出多少行
 
delete from cpuinfo where time=1531992939634316937    删除一条数据
 
delete from cpuinfo  删除所有数据

4.influxdb中数据保留时间的设置
SHOW RETENTION POLICIES ON shijiange    查看数据库shijiange 中表的保留策略
 
CREATE RETENTION POLICY rp_shijiange ON shijiange DURATION 30d REPLICATION 1 DEFAULT #数据要保留一个月
 
alter RETENTION POLICY rp_shijiange ON shijiange DURATION 90d REPLICATION 1 DEFAULT  改变保留策略
 
DROP RETENTION POLICY rp_shijiange on shijiange #删除保存时间和策略，同时会删除该表，一般来说是不删除


5.influxdb使用易看的时间格式
用标准时间格式展示数据，使time更容易看：precision rfc3339

数据保存策略

一般情况下基于时间序列的point数据不会进行直接删除操作，一般我们平时只关心当前数据，历史数据不需要一直保存，不然会占用太多空间。这里可以配置数据保存策略(Retention Policies)，当数据超过了指定的时间之后，就会被删除。

SHOW RETENTION POLICIES ON "testDB" //查看当前数据库的Retention Policies

CREATE RETENTION POLICY "rp_name" ON "db_name" DURATION 30d REPLICATION 1 DEFAULT //创建新的Retention Policies

#注释如下：

rp_name：策略名

db_name：具体的数据库名

30d：保存30天，30天之前的数据将被删除

它具有各种时间参数，比如：h(小时)，w(星期)

REPLICATION 1：副本个数，这里填1就可以了

DEFAULT 设为默认的策略


也可以通过如下命令修改和删策略：

ALTER RETENTION POLICY "rp_name" ON db_name" DURATION 3w DEFAULT

DROP RETENTION POLICY "rp_name" ON "db_name"

name--名称，此示例名称为 default 

duration--数据可以持久化数据库的时间，0代表无限制

shardGroupDuration--shardGroup的存储时间，shardGroup是InfluxDB的一个基本储存结构，应该大于这个时间的数据在查询效率上应该有所降低。

replicaN--全称是REPLICATION，副本个数

default--是否是默认策略
 

 新建表和插入数据 （ 新建表没有具体的语法，只是增加第一条数据时，会自动建立表 ）
语法：

<measurement>

[,<tag-key>=<tag-value>...]

<field-key>=<field-value>[,<field2-key>=<field2-value>...]

[unix-nano-timestamp]

下面给出一个简单的实例：

insert add_test,name=YiHui,phone=110 user_id=20,email="b**zewu@126.com"

新增一条数据，measurement为add_test, tag为name,phone, field为user_id,email

空格前的为tag，空格后的为field

insert sensor_data,sensor_type="风速",sensor_id="1" sensor_data=12.12

insert Battery_Level,Change="处于充电状态",Device_ID="01" Battery_Level=1.0

注意：插入数据时，如果插入的字段的类型为字符型，那么要用" "包括，不包含或者用' '都是错误的

> insert maintest,temperature=35.6 cputype=cpu001
ERR: {"error":"unable to parse 'maintest,temperature=35.6 cputype=cpu001': invalid boolean"}

> insert maintest,temperature=35.6 cputype="cpu001"
>

influxdb的point比较特殊，一个point（行）包括了timestamp(时间戳)，tags(带索引)，fields(不带索引)这几种属性

influxdb数据的构成：

Point由时间戳(time)、数据(field)、标签(tags)组成。

Point属性

传统数据库中的概念

time:每个数据记录时间，是数据库中的主索引(会自动生成)

fields:各种记录值(没有索引的属性)也就是记录的值：温度， 湿度

tags:各种有索引的属性：地区，海拔

这里不得不提另一个名词：series：所有在数据库中的数据，都需要通过图表来展示，而这个series表示这个表里面的数据，可以在图表上画成几条线：通过tags排列组合算出来。具体可以通过

SHOW  SERIES FROM "表名" 进行查询

 field中有四种存储类型，分别是int, float, string, boolean，用法为

显示所有用户

show users

创建 普通用户：

 create user "..." with password '...'

 create user "ems" with password 'ems123' # 密码用单引号

创建 管理员用户：

 create user "..." with password '...' with all privileges

create user "ems33" with password '1234'  with all privileges

删除用户：

 drop user "..."

influxdb的权限设置比较简单，只有读、写、ALL几种。更多用户权限设置可以参看官方文档：https://docs.influxdata.com/influxdb/v1.0/query_language/authentication_and_authorization/ 。

默认情况下，influxdb类似与mongodb，是不开启用户认证的，可以修改其

conf文件，配置http块内容如下：

[http]

enable = true

bind-address = ":8086"

auth-enabled = true # 开启认证

参考：

https://blog.csdn.net/vtnews/article/details/80197045

https://www.cnblogs.com/stone-s/p/16457720.html

https://www.likecs.com/show-306856081.html

https://blog.csdn.net/weixin_43135178/article/details/108733373

 

二、遇到问题

1.关于influxDB，修改过端口号无法连接的问题

再启动influxdb的时候，可能会遇到端口被占用等情况，此时便需要修改influx的配置文件来更换端口。

但是当修改过influxdb.config文件的路径之后，再本地输入influx时发现，他所连接的端口并不是我所更改后的端口。当我输入show databases时，报401错。

从网上找了一大堆资料，发现只需要再启动的时候输入指定端口即可：

influx -host localhost -port 6086

参考：

https://blog.csdn.net/weixin_39770653/article/details/119808573

 https://blog.csdn.net/ColorfulChen/article/details/125946615

三、 Influxdb配置文件详解---influxdb.conf

官方介绍：Database Configuration | InfluxData Documentation Archive

全局配置

reporting-disabled = false  # 该选项用于上报influxdb的使用信息给InfluxData公司，默认值为false
bind-address = ":8088"  # 备份恢复时使用，默认值为8088

1、meta相关配置

[meta]
dir = "/var/lib/influxdb/meta"  # meta数据存放目录
retention-autocreate = true  # 用于控制默认存储策略，数据库创建时，会自动生成autogen的存储策略，默认值：true
logging-enabled = true  # 是否开启meta日志，默认值：true

2、data相关配置

[data]
dir = "/var/lib/influxdb/data"  # 最终数据（TSM文件）存储目录
wal-dir = "/var/lib/influxdb/wal"  # 预写日志存储目录
query-log-enabled = true  # 是否开启tsm引擎查询日志，默认值： true
cache-max-memory-size = 1048576000  # 用于限定shard最大值，大于该值时会拒绝写入，默认值：1000MB，单位：byte
cache-snapshot-memory-size = 26214400  # 用于设置快照大小，大于该值时数据会刷新到tsm文件，默认值：25MB，单位：byte
cache-snapshot-write-cold-duration = "10m"  # tsm引擎 snapshot写盘延迟，默认值：10Minute
compact-full-write-cold-duration = "4h"  # tsm文件在压缩前可以存储的最大时间，默认值：4Hour
max-series-per-database = 1000000  # 限制数据库的级数，该值为0时取消限制，默认值：1000000
max-values-per-tag = 100000  # 一个tag最大的value数，0取消限制，默认值：100000

3、coordinator查询管理的配置选项

[coordinator]
write-timeout = "10s"  # 写操作超时时间，默认值： 10s
max-concurrent-queries = 0  # 最大并发查询数，0无限制，默认值： 0
query-timeout = "0s  # 查询操作超时时间，0无限制，默认值：0s
log-queries-after = "0s"  # 慢查询超时时间，0无限制，默认值：0s
max-select-point = 0  # SELECT语句可以处理的最大点数（points），0无限制，默认值：0
max-select-series = 0  # SELECT语句可以处理的最大级数（series），0无限制，默认值：0
max-select-buckets = 0  # SELECT语句可以处理的最大"GROUP BY time()"的时间周期，0无限制，默认值：0

4、retention旧数据的保留策略

[retention]
enabled = true  # 是否启用该模块，默认值 ： true
check-interval = "30m"  # 检查时间间隔，默认值 ："30m"

5、shard-precreation分区预创建

[shard-precreation]
enabled = true  # 是否启用该模块，默认值 ： true
check-interval = "10m"  # 检查时间间隔，默认值 ："10m"
advance-period = "30m"  # 预创建分区的最大提前时间，默认值 ："30m"

6、monitor 控制InfluxDB自有的监控系统。 默认情况下，InfluxDB把这些数据写入_internal 数据库，如果这个库不存在则自动创建。 _internal 库默认的retention策略是7天，如果你想使用一个自己的retention策略，需要自己创建。

[monitor]
store-enabled = true  # 是否启用该模块，默认值 ：true
store-database = "_internal"  # 默认数据库："_internal"
store-interval = "10s  # 统计间隔，默认值："10s"

7、admin web管理页面

[admin]
enabled = true  # 是否启用该模块，默认值 ： false
bind-address = ":8083"  # 绑定地址，默认值 ：":8083"
https-enabled = false  # 是否开启https ，默认值 ：false
https-certificate = "/etc/ssl/influxdb.pem"  # https证书路径，默认值："/etc/ssl/influxdb.pem"

8、http API

[http]
enabled = true  # 是否启用该模块，默认值 ：true
bind-address = ":8086"  # 绑定地址，默认值：":8086"
auth-enabled = false  # 是否开启认证，默认值：false
realm = "InfluxDB"  # 配置JWT realm，默认值: "InfluxDB"
log-enabled = true  # 是否开启日志，默认值：true
write-tracing = false  # 是否开启写操作日志，如果置成true，每一次写操作都会打日志，默认值：false
pprof-enabled = true  # 是否开启pprof，默认值：true
https-enabled = false  # 是否开启https，默认值：false
https-certificate = "/etc/ssl/influxdb.pem"  # 设置https证书路径，默认值："/etc/ssl/influxdb.pem"
https-private-key = ""  # 设置https私钥，无默认值
shared-secret = ""  # 用于JWT签名的共享密钥，无默认值
max-row-limit = 0  # 配置查询返回最大行数，0无限制，默认值：0
max-connection-limit = 0  # 配置最大连接数，0无限制，默认值：0
unix-socket-enabled = false  # 是否使用unix-socket，默认值：false
bind-socket = "/var/run/influxdb.sock"  # unix-socket路径，默认值："/var/run/influxdb.sock"

9、subscriber 控制Kapacitor接受数据的配置

[subscriber]
enabled = true  # 是否启用该模块，默认值 ：true
http-timeout = "30s"  # http超时时间，默认值："30s"
insecure-skip-verify = false  # 是否允许不安全的证书
ca-certs = ""  # 设置CA证书
write-concurrency = 40  # 设置并发数目，默认值：40
write-buffer-size = 1000  # 设置buffer大小，默认值：1000

10、graphite 相关配置

[[graphite]]
enabled = false  # 是否启用该模块，默认值 ：false
database = "graphite"  # 数据库名称，默认值："graphite"
retention-policy = ""  # 存储策略，无默认值
bind-address = ":2003"  # 绑定地址，默认值：":2003"
protocol = "tcp"  # 协议，默认值："tcp"
consistency-level = "one"  # 一致性级别，默认值："one
batch-size = 5000  # 批量size，默认值：5000
batch-pending = 10  # 配置在内存中等待的batch数，默认值：10
batch-timeout = "1s"  # 超时时间，默认值："1s"
udp-read-buffer = 0  # udp读取buffer的大小，0表示使用操作系统提供的值，如果超过操作系统的默认配置则会出错。 该配置的默认值：0
separator = "."  # 多个measurement间的连接符，默认值： "."

11、collectd

[[collectd]]
enabled = false  # 是否启用该模块，默认值 ：false
bind-address = ":25826"  # 绑定地址，默认值： ":25826"
database = "collectd"  # 数据库名称，默认值："collectd"
retention-policy = ""  # 存储策略，无默认值
typesdb = "/usr/local/share/collectd"  # 路径，默认值："/usr/share/collectd/types.db"
auth-file = "/etc/collectd/auth_file"
batch-size = 5000
batch-pending = 10
batch-timeout = "10s"
read-buffer = 0  # udp读取buffer的大小，0表示使用操作系统提供的值，如果超过操作系统的默认配置则会出错。默认值：0

12、opentsdb

[[opentsdb]]
enabled = false  # 是否启用该模块，默认值：false
bind-address = ":4242"  # 绑定地址，默认值：":4242"
database = "opentsdb"  # 默认数据库："opentsdb"
retention-policy = ""  # 存储策略，无默认值
consistency-level = "one"  # 一致性级别，默认值："one"
tls-enabled = false  # 是否开启tls，默认值：false
certificate= "/etc/ssl/influxdb.pem"  # 证书路径，默认值："/etc/ssl/influxdb.pem"
log-point-errors = true  # 出错时是否记录日志，默认值：true
batch-size = 1000
batch-pending = 5
batch-timeout = "1s"

13、udp

[[udp]]
enabled = false  # 是否启用该模块，默认值：false
bind-address = ":8089"  # 绑定地址，默认值：":8089"
database = "udp"  # 数据库名称，默认值："udp"
retention-policy = ""  # 存储策略，无默认值
batch-size = 5000
batch-pending = 10
batch-timeout = "1s"
read-buffer = 0  # udp读取buffer的大小，0表示使用操作系统提供的值，如果超过操作系统的默认配置则会出错。 该配置的默认值：0　

14、continuous_queries

[continuous_queries]
enabled = true  # enabled 是否开启CQs，默认值：true
log-enabled = true  # 是否开启日志，默认值：true
run-interval = "1s"  # 时间间隔，默认值："1s"

我的配置文件

### Welcome to the InfluxDB configuration file.

# The values in this file override the default values used by the system if
# a config option is not specified. The commented out lines are the configuration
# field and the default value used. Uncommenting a line and changing the value
# will change the value used at runtime when the process is restarted.

# Once every 24 hours InfluxDB will report usage data to usage.influxdata.com
# The data includes a random ID, os, arch, version, the number of series and other
# usage data. No data from user databases is ever transmitted.
# Change this option to true to disable reporting.
# reporting-disabled = false

# Bind address to use for the RPC service for backup and restore.
 bind-address = "0.0.0.0:8088"

###
### [meta]
###
### Controls the parameters for the Raft consensus group that stores metadata
### about the InfluxDB cluster.
###

[meta]
  # Where the metadata/raft database is stored
  dir = "D:/softwore/influxdb-1.7.4-1/meta"

  # Automatically create a default retention policy when creating a database.
  # retention-autocreate = true

  # If log messages are printed for the meta service
  # logging-enabled = true

###
### [data]
###
### Controls where the actual shard data for InfluxDB lives and how it is
### flushed from the WAL. "dir" may need to be changed to a suitable place
### for your system, but the WAL settings are an advanced configuration. The
### defaults should work for most systems.
###

[data]
  # The directory where the TSM storage engine stores TSM files.
  dir = "D:/softwore/influxdb-1.7.4-1/data"

  # The directory where the TSM storage engine stores WAL files.
  wal-dir = "D:/softwore/influxdb-1.7.4-1/wal"

  # The amount of time that a write will wait before fsyncing.  A duration
  # greater than 0 can be used to batch up multiple fsync calls.  This is useful for slower
  # disks or when WAL write contention is seen.  A value of 0s fsyncs every write to the WAL.
  # Values in the range of 0-100ms are recommended for non-SSD disks.
  # wal-fsync-delay = "0s"


  # The type of shard index to use for new shards.  The default is an in-memory index that is
  # recreated at startup.  A value of "tsi1" will use a disk based index that supports higher
  # cardinality datasets.
  # index-version = "inmem"

  # Trace logging provides more verbose output around the tsm engine. Turning
  # this on can provide more useful output for debugging tsm engine issues.
  # trace-logging-enabled = false

  # Whether queries should be logged before execution. Very useful for troubleshooting, but will
  # log any sensitive data contained within a query.
  # query-log-enabled = true

  # Validates incoming writes to ensure keys only have valid unicode characters.
  # This setting will incur a small overhead because every key must be checked.
  # validate-keys = false

  # Settings for the TSM engine

  # CacheMaxMemorySize is the maximum size a shard's cache can
  # reach before it starts rejecting writes.
  # Valid size suffixes are k, m, or g (case insensitive, 1024 = 1k).
  # Values without a size suffix are in bytes.
  # cache-max-memory-size = "1g"

  # CacheSnapshotMemorySize is the size at which the engine will
  # snapshot the cache and write it to a TSM file, freeing up memory
  # Valid size suffixes are k, m, or g (case insensitive, 1024 = 1k).
  # Values without a size suffix are in bytes.
  # cache-snapshot-memory-size = "25m"

  # CacheSnapshotWriteColdDuration is the length of time at
  # which the engine will snapshot the cache and write it to
  # a new TSM file if the shard hasn't received writes or deletes
  # cache-snapshot-write-cold-duration = "10m"

  # CompactFullWriteColdDuration is the duration at which the engine
  # will compact all TSM files in a shard if it hasn't received a
  # write or delete
  # compact-full-write-cold-duration = "4h"

  # The maximum number of concurrent full and level compactions that can run at one time.  A
  # value of 0 results in 50% of runtime.GOMAXPROCS(0) used at runtime.  Any number greater
  # than 0 limits compactions to that value.  This setting does not apply
  # to cache snapshotting.
  # max-concurrent-compactions = 0

  # CompactThroughput is the rate limit in bytes per second that we
  # will allow TSM compactions to write to disk. Note that short bursts are allowed
  # to happen at a possibly larger value, set by CompactThroughputBurst
  # compact-throughput = "48m"

  # CompactThroughputBurst is the rate limit in bytes per second that we
  # will allow TSM compactions to write to disk.
  # compact-throughput-burst = "48m"

  # If true, then the mmap advise value MADV_WILLNEED will be provided to the kernel with respect to
  # TSM files. This setting has been found to be problematic on some kernels, and defaults to off.
  # It might help users who have slow disks in some cases.
  # tsm-use-madv-willneed = false

  # Settings for the inmem index

  # The maximum series allowed per database before writes are dropped.  This limit can prevent
  # high cardinality issues at the database level.  This limit can be disabled by setting it to
  # 0.
  # max-series-per-database = 1000000

  # The maximum number of tag values per tag that are allowed before writes are dropped.  This limit
  # can prevent high cardinality tag values from being written to a measurement.  This limit can be
  # disabled by setting it to 0.
  # max-values-per-tag = 100000

  # Settings for the tsi1 index

  # The threshold, in bytes, when an index write-ahead log file will compact
  # into an index file. Lower sizes will cause log files to be compacted more
  # quickly and result in lower heap usage at the expense of write throughput.
  # Higher sizes will be compacted less frequently, store more series in-memory,
  # and provide higher write throughput.
  # Valid size suffixes are k, m, or g (case insensitive, 1024 = 1k).
  # Values without a size suffix are in bytes.
  # max-index-log-file-size = "1m"

  # The size of the internal cache used in the TSI index to store previously 
  # calculated series results. Cached results will be returned quickly from the cache rather
  # than needing to be recalculated when a subsequent query with a matching tag key/value 
  # predicate is executed. Setting this value to 0 will disable the cache, which may
  # lead to query performance issues.
  # This value should only be increased if it is known that the set of regularly used 
  # tag key/value predicates across all measurements for a database is larger than 100. An
  # increase in cache size may lead to an increase in heap usage.
  series-id-set-cache-size = 100

###
### [coordinator]
###
### Controls the clustering service configuration.
###

[coordinator]
  # The default time a write request will wait until a "timeout" error is returned to the caller.
  # write-timeout = "10s"

  # The maximum number of concurrent queries allowed to be executing at one time.  If a query is
  # executed and exceeds this limit, an error is returned to the caller.  This limit can be disabled
  # by setting it to 0.
  # max-concurrent-queries = 0

  # The maximum time a query will is allowed to execute before being killed by the system.  This limit
  # can help prevent run away queries.  Setting the value to 0 disables the limit.
  # query-timeout = "0s"

  # The time threshold when a query will be logged as a slow query.  This limit can be set to help
  # discover slow or resource intensive queries.  Setting the value to 0 disables the slow query logging.
  # log-queries-after = "0s"

  # The maximum number of points a SELECT can process.  A value of 0 will make
  # the maximum point count unlimited.  This will only be checked every second so queries will not
  # be aborted immediately when hitting the limit.
  # max-select-point = 0

  # The maximum number of series a SELECT can run.  A value of 0 will make the maximum series
  # count unlimited.
  # max-select-series = 0

  # The maxium number of group by time bucket a SELECT can create.  A value of zero will max the maximum
  # number of buckets unlimited.
  # max-select-buckets = 0

###
### [retention]
###
### Controls the enforcement of retention policies for evicting old data.
###

[retention]
  # Determines whether retention policy enforcement enabled.
  # enabled = true

  # The interval of time when retention policy enforcement checks run.
  # check-interval = "30m"

###
### [shard-precreation]
###
### Controls the precreation of shards, so they are available before data arrives.
### Only shards that, after creation, will have both a start- and end-time in the
### future, will ever be created. Shards are never precreated that would be wholly
### or partially in the past.

[shard-precreation]
  # Determines whether shard pre-creation service is enabled.
  # enabled = true

  # The interval of time when the check to pre-create new shards runs.
  # check-interval = "10m"

  # The default period ahead of the endtime of a shard group that its successor
  # group is created.
  # advance-period = "30m"

###
### Controls the system self-monitoring, statistics and diagnostics.
###
### The internal database for monitoring data is created automatically if
### if it does not already exist. The target retention within this database
### is called 'monitor' and is also created with a retention period of 7 days
### and a replication factor of 1, if it does not exist. In all cases the
### this retention policy is configured as the default for the database.

[monitor]
  # Whether to record statistics internally.
  # store-enabled = true

  # The destination database for recorded statistics
  # store-database = "_internal"

  # The interval at which to record statistics
  # store-interval = "10s"

###
### [http]
###
### Controls how the HTTP endpoints are configured. These are the primary
### mechanism for getting data into and out of InfluxDB.
###

[http]
  # Determines whether HTTP endpoint is enabled.
   enabled = true

  # Determines whether the Flux query endpoint is enabled.
  # flux-enabled = false

  # Determines whether the Flux query logging is enabled.
  # flux-log-enabled = false

  # The bind address used by the HTTP service.
   bind-address = ":8083"

  # Determines whether user authentication is enabled over HTTP/HTTPS.
  # auth-enabled = false

  # The default realm sent back when issuing a basic auth challenge.
  # realm = "InfluxDB"

  # Determines whether HTTP request logging is enabled.
  # log-enabled = true

  # Determines whether the HTTP write request logs should be suppressed when the log is enabled.
  # suppress-write-log = false

  # When HTTP request logging is enabled, this option specifies the path where
  # log entries should be written. If unspecified, the default is to write to stderr, which
  # intermingles HTTP logs with internal InfluxDB logging.
  #
  # If influxd is unable to access the specified path, it will log an error and fall back to writing
  # the request log to stderr.
  # access-log-path = ""

  # Filters which requests should be logged. Each filter is of the pattern NNN, NNX, or NXX where N is
  # a number and X is a wildcard for any number. To filter all 5xx responses, use the string 5xx.
  # If multiple filters are used, then only one has to match. The default is to have no filters which
  # will cause every request to be printed.
  # access-log-status-filters = []

  # Determines whether detailed write logging is enabled.
  # write-tracing = false

  # Determines whether the pprof endpoint is enabled.  This endpoint is used for
  # troubleshooting and monitoring.
  # pprof-enabled = true

  # Enables a pprof endpoint that binds to localhost:6060 immediately on startup.
  # This is only needed to debug startup issues.
  # debug-pprof-enabled = false

  # Determines whether HTTPS is enabled.
  # https-enabled = false

  # The SSL certificate to use when HTTPS is enabled.
  # https-certificate = "/etc/ssl/influxdb.pem"

  # Use a separate private key location.
  # https-private-key = ""

  # The JWT auth shared secret to validate requests using JSON web tokens.
  # shared-secret = ""

  # The default chunk size for result sets that should be chunked.
  # max-row-limit = 0

  # The maximum number of HTTP connections that may be open at once.  New connections that
  # would exceed this limit are dropped.  Setting this value to 0 disables the limit.
  # max-connection-limit = 0

  # Enable http service over unix domain socket
  # unix-socket-enabled = false

  # The path of the unix domain socket.
  # bind-socket = "/var/run/influxdb.sock"

  # The maximum size of a client request body, in bytes. Setting this value to 0 disables the limit.
  # max-body-size = 25000000

  # The maximum number of writes processed concurrently.
  # Setting this to 0 disables the limit.
  # max-concurrent-write-limit = 0

  # The maximum number of writes queued for processing.
  # Setting this to 0 disables the limit.
  # max-enqueued-write-limit = 0

  # The maximum duration for a write to wait in the queue to be processed.
  # Setting this to 0 or setting max-concurrent-write-limit to 0 disables the limit.
  # enqueued-write-timeout = 0

###
### [logging]
###
### Controls how the logger emits logs to the output.
###

[logging]
  # Determines which log encoder to use for logs. Available options
  # are auto, logfmt, and json. auto will use a more a more user-friendly
  # output format if the output terminal is a TTY, but the format is not as
  # easily machine-readable. When the output is a non-TTY, auto will use
  # logfmt.
  # format = "auto"

  # Determines which level of logs will be emitted. The available levels
  # are error, warn, info, and debug. Logs that are equal to or above the
  # specified level will be emitted.
  # level = "info"

  # Suppresses the logo output that is printed when the program is started.
  # The logo is always suppressed if STDOUT is not a TTY.
  # suppress-logo = false

###
### [subscriber]
###
### Controls the subscriptions, which can be used to fork a copy of all data
### received by the InfluxDB host.
###

[subscriber]
  # Determines whether the subscriber service is enabled.
  # enabled = true

  # The default timeout for HTTP writes to subscribers.
  # http-timeout = "30s"

  # Allows insecure HTTPS connections to subscribers.  This is useful when testing with self-
  # signed certificates.
  # insecure-skip-verify = false

  # The path to the PEM encoded CA certs file. If the empty string, the default system certs will be used
  # ca-certs = ""

  # The number of writer goroutines processing the write channel.
  # write-concurrency = 40

  # The number of in-flight writes buffered in the write channel.
  # write-buffer-size = 1000


###
### [[graphite]]
###
### Controls one or many listeners for Graphite data.
###

[[graphite]]
  # Determines whether the graphite endpoint is enabled.
  # enabled = false
  # database = "graphite"
  # retention-policy = ""
  # bind-address = ":2003"
  # protocol = "tcp"
  # consistency-level = "one"

  # These next lines control how batching works. You should have this enabled
  # otherwise you could get dropped metrics or poor performance. Batching
  # will buffer points in memory if you have many coming in.

  # Flush if this many points get buffered
  # batch-size = 5000

  # number of batches that may be pending in memory
  # batch-pending = 10

  # Flush at least this often even if we haven't hit buffer limit
  # batch-timeout = "1s"

  # UDP Read buffer size, 0 means OS default. UDP listener will fail if set above OS max.
  # udp-read-buffer = 0

  ### This string joins multiple matching 'measurement' values providing more control over the final measurement name.
  # separator = "."

  ### Default tags that will be added to all metrics.  These can be overridden at the template level
  ### or by tags extracted from metric
  # tags = ["region=us-east", "zone=1c"]

  ### Each template line requires a template pattern.  It can have an optional
  ### filter before the template and separated by spaces.  It can also have optional extra
  ### tags following the template.  Multiple tags should be separated by commas and no spaces
  ### similar to the line protocol format.  There can be only one default template.
  # templates = [
  #   "*.app env.service.resource.measurement",
  #   # Default template
  #   "server.*",
  # ]

###
### [collectd]
###
### Controls one or many listeners for collectd data.
###

[[collectd]]
  # enabled = false
  # bind-address = ":25826"
  # database = "collectd"
  # retention-policy = ""
  #
  # The collectd service supports either scanning a directory for multiple types
  # db files, or specifying a single db file.
  # typesdb = "/usr/local/share/collectd"
  #
  # security-level = "none"
  # auth-file = "/etc/collectd/auth_file"

  # These next lines control how batching works. You should have this enabled
  # otherwise you could get dropped metrics or poor performance. Batching
  # will buffer points in memory if you have many coming in.

  # Flush if this many points get buffered
  # batch-size = 5000

  # Number of batches that may be pending in memory
  # batch-pending = 10

  # Flush at least this often even if we haven't hit buffer limit
  # batch-timeout = "10s"

  # UDP Read buffer size, 0 means OS default. UDP listener will fail if set above OS max.
  # read-buffer = 0

  # Multi-value plugins can be handled two ways.
  # "split" will parse and store the multi-value plugin data into separate measurements
  # "join" will parse and store the multi-value plugin as a single multi-value measurement.
  # "split" is the default behavior for backward compatability with previous versions of influxdb.
  # parse-multivalue-plugin = "split"
###
### [opentsdb]
###
### Controls one or many listeners for OpenTSDB data.
###

[[opentsdb]]
  # enabled = false
  # bind-address = ":4242"
  # database = "opentsdb"
  # retention-policy = ""
  # consistency-level = "one"
  # tls-enabled = false
  # certificate= "/etc/ssl/influxdb.pem"

  # Log an error for every malformed point.
  # log-point-errors = true

  # These next lines control how batching works. You should have this enabled
  # otherwise you could get dropped metrics or poor performance. Only points
  # metrics received over the telnet protocol undergo batching.

  # Flush if this many points get buffered
  # batch-size = 1000

  # Number of batches that may be pending in memory
  # batch-pending = 5

  # Flush at least this often even if we haven't hit buffer limit
  # batch-timeout = "1s"

###
### [[udp]]
###
### Controls the listeners for InfluxDB line protocol data via UDP.
###

[[udp]]
  # enabled = false
  # bind-address = ":8089"
  # database = "udp"
  # retention-policy = ""

  # InfluxDB precision for timestamps on received points ("" or "n", "u", "ms", "s", "m", "h")
  # precision = ""

  # These next lines control how batching works. You should have this enabled
  # otherwise you could get dropped metrics or poor performance. Batching
  # will buffer points in memory if you have many coming in.

  # Flush if this many points get buffered
  # batch-size = 5000

  # Number of batches that may be pending in memory
  # batch-pending = 10

  # Will flush at least this often even if we haven't hit buffer limit
  # batch-timeout = "1s"

  # UDP Read buffer size, 0 means OS default. UDP listener will fail if set above OS max.
  # read-buffer = 0

###
### [continuous_queries]
###
### Controls how continuous queries are run within InfluxDB.
###

[continuous_queries]
  # Determines whether the continuous query service is enabled.
  # enabled = true

  # Controls whether queries are logged when executed by the CQ service.
  # log-enabled = true

  # Controls whether queries are logged to the self-monitoring data store.
  # query-stats-enabled = false

  # interval for how often continuous queries will be checked if they need to run
  # run-interval = "1s"

###
### [tls]
###
### Global configuration settings for TLS in InfluxDB.
###

[tls]
  # Determines the available set of cipher suites. See https://golang.org/pkg/crypto/tls/#pkg-constants
  # for a list of available ciphers, which depends on the version of Go (use the query
  # SHOW DIAGNOSTICS to see the version of Go used to build InfluxDB). If not specified, uses
  # the default settings from Go's crypto/tls package.
  # ciphers = [
  #   "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305",
  #   "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256",
  # ]

  # Minimum version of the tls protocol that will be negotiated. If not specified, uses the
  # default settings from Go's crypto/tls package.
  # min-version = "tls1.2"

  # Maximum version of the tls protocol that will be negotiated. If not specified, uses the
  # default settings from Go's crypto/tls package.
  # max-version = "tls1.2"

参考：https://www.cnblogs.com/guyeshanrenshiwoshifu/p/9188368.html