influxdb安装完毕之后，一般来讲，有些配置有必要改一下的，比如默认的端口号，默认的数据存储位置，本篇将介绍下常用配置的修改姿势
I. 配置
系统环境为centos，influxdb的版本为1.6
1. 配置文件
默认配置文件安装目录为: /etc/influxdb/influxdb.conf
默认配置查看
输出结果如
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| Merging with configuration at: /etc/influxdb/influxdb.conf
reporting-disabled = false
bind-address = "127.0.0.1:8088"
[meta]
dir = "/var/lib/influxdb/meta"
retention-autocreate = true
logging-enabled = true
[data]
dir = "/var/lib/influxdb/data"
index-version = "inmem"
wal-dir = "/var/lib/influxdb/wal"
wal-fsync-delay = "0s"
validate-keys = false
query-log-enabled = true
cache-max-memory-size = 1073741824
cache-snapshot-memory-size = 26214400
cache-snapshot-write-cold-duration = "10m0s"
compact-full-write-cold-duration = "4h0m0s"
compact-throughput = 50331648
compact-throughput-burst = 50331648
max-series-per-database = 1000000
max-values-per-tag = 100000
max-concurrent-compactions = 0
max-index-log-file-size = 1048576
series-id-set-cache-size = 100
trace-logging-enabled = false
tsm-use-madv-willneed = false
[coordinator]
write-timeout = "10s"
max-concurrent-queries = 0
query-timeout = "0s"
log-queries-after = "0s"
max-select-point = 0
max-select-series = 0
max-select-buckets = 0
[retention]
enabled = true
check-interval = "30m0s"
[shard-precreation]
enabled = true
check-interval = "10m0s"
advance-period = "30m0s"
[monitor]
store-enabled = true
store-database = "_internal"
store-interval = "10s"
[subscriber]
enabled = true
http-timeout = "30s"
insecure-skip-verify = false
ca-certs = ""
write-concurrency = 40
write-buffer-size = 1000
[http]
enabled = true
bind-address = ":8086"
auth-enabled = true
log-enabled = true
suppress-write-log = false
write-tracing = false
flux-enabled = false
flux-log-enabled = false
pprof-enabled = true
debug-pprof-enabled = false
https-enabled = false
https-certificate = "/etc/ssl/influxdb.pem"
https-private-key = ""
max-row-limit = 0
max-connection-limit = 0
shared-secret = ""
realm = "InfluxDB"
unix-socket-enabled = false
unix-socket-permissions = "0777"
bind-socket = "/var/run/influxdb.sock"
max-body-size = 25000000
access-log-path = ""
max-concurrent-write-limit = 0
max-enqueued-write-limit = 0
enqueued-write-timeout = 30000000000
[logging]
format = "auto"
level = "info"
suppress-logo = false
[[graphite]]
enabled = false
bind-address = ":2003"
database = "graphite"
retention-policy = ""
protocol = "tcp"
batch-size = 5000
batch-pending = 10
batch-timeout = "1s"
consistency-level = "one"
separator = "."
udp-read-buffer = 0
[[collectd]]
enabled = false
bind-address = ":25826"
database = "collectd"
retention-policy = ""
batch-size = 5000
batch-pending = 10
batch-timeout = "10s"
read-buffer = 0
typesdb = "/usr/share/collectd/types.db"
security-level = "none"
auth-file = "/etc/collectd/auth_file"
parse-multivalue-plugin = "split"
[[opentsdb]]
enabled = false
bind-address = ":4242"
database = "opentsdb"
retention-policy = ""
consistency-level = "one"
tls-enabled = false
certificate = "/etc/ssl/influxdb.pem"
batch-size = 1000
batch-pending = 5
batch-timeout = "1s"
log-point-errors = true
[[udp]]
enabled = false
bind-address = ":8089"
database = "udp"
retention-policy = ""
batch-size = 5000
batch-pending = 10
read-buffer = 0
batch-timeout = "1s"
precision = ""
[continuous_queries]
log-enabled = true
enabled = true
query-stats-enabled = false
run-interval = "1s"
[tls]
min-version = ""
max-version = ""
|
2. 数据存储修改
从上面的配置中可以知道，默认的数据存储为/var/lib/influxdb/data， /var/lib/influxdb/wal, /var/lib/influxdb/meta
将数据保存在我们挂载的硬盘 /influx
第一步，修改配置文件
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| vim /etc/influxdb/influxdb.conf
[meta]
dir = '/influx/meta'
[data]
dir = '/influx/data'
war-dir = '/influx/wal'
|
第二步，修改用户组
重新制定存储目录之后，需要修改文件夹的owner和分组，否则influxdb将无法正常启动
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| chown -R influxdb:influxdb /influx
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第三步，重启
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| service influxdb restart
|
3. 端口修改
可以修改默认的端口号，首先进入配置文件
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| [[udp]]
bind-address = ":18089"
[[http]]
bind-address = ":18086"
auth-enabled = true
|
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