Telegraf and influxdb2.0 problems

InfluxDB 2
1

I am using the telegraf to collect the SNMP metrics from netowrk devices, and then write these metric datas into influxdb2.0. Moreover, It is working well with [inputs.snmp.field], and I can see the metrics of fields in influxdb, but I can see nothing from [inputs.snmp.table] in influxdb. I don’t know why, and I am really confused about that. I hope somebody else can help me and point out the problems happened. Thanks in advance.
1)I have installed the net-snmp-utilis
2) I can use snmpwalk to check these oids availible.

-----------------telegraf.conf is shown as follows----------------------------------------------

# Configuration for telegraf agent
[agent]
  ## Default data collection interval for all inputs
  interval = "10s"
  ## Rounds collection interval to 'interval'
  ## ie, if interval="10s" then always collect on :00, :10, :20, etc.
  round_interval = true

  ## Telegraf will send metrics to outputs in batches of at most
  ## metric_batch_size metrics.
  ## This controls the size of writes that Telegraf sends to output plugins.
  metric_batch_size = 1000

  ## For failed writes, telegraf will cache metric_buffer_limit metrics for each
  ## output, and will flush this buffer on a successful write. Oldest metrics
  ## are dropped first when this buffer fills.
  ## This buffer only fills when writes fail to output plugin(s).
  metric_buffer_limit = 10000

  ## Collection jitter is used to jitter the collection by a random amount.
  ## Each plugin will sleep for a random time within jitter before collecting.
  ## This can be used to avoid many plugins querying things like sysfs at the
  ## same time, which can have a measurable effect on the system.
  collection_jitter = "0s"

  ## Default flushing interval for all outputs. Maximum flush_interval will be
  ## flush_interval + flush_jitter
  flush_interval = "10s"
  ## Jitter the flush interval by a random amount. This is primarily to avoid
  ## large write spikes for users running a large number of telegraf instances.
  ## ie, a jitter of 5s and interval 10s means flushes will happen every 10-15s
  flush_jitter = "0s"

  ## By default or when set to "0s", precision will be set to the same
  ## timestamp order as the collection interval, with the maximum being 1s.
  ##   ie, when interval = "10s", precision will be "1s"
  ##       when interval = "250ms", precision will be "1ms"
  ## Precision will NOT be used for service inputs. It is up to each individual
  ## service input to set the timestamp at the appropriate precision.
  ## Valid time units are "ns", "us" (or "µs"), "ms", "s".
  precision = ""

  ## Logging configuration:
  ## Run telegraf with debug log messages.
  debug = false
  ## Run telegraf in quiet mode (error log messages only).
  quiet = false
  ## Specify the log file name. The empty string means to log to stderr.
  logfile = ""

  ## Override default hostname, if empty use os.Hostname()
  hostname = ""
  ## If set to true, do no set the "host" tag in the telegraf agent.
  omit_hostname = false
[[outputs.influxdb_v2]]	
  ## The URLs of the InfluxDB cluster nodes.
  ##
  ## Multiple URLs can be specified for a single cluster, only ONE of the
  ## urls will be written to each interval.
  ## urls exp: http://127.0.0.1:8086
  urls = ["http://192.168.26.134:8086"]

  ## Token for authentication.
  token = "$INFLUX_TOKEN"

  ## Organization is the name of the organization you wish to write to; must exist.
  organization = "influxdb"

  ## Destination bucket to write into.
  bucket = "telegraf"
[[inputs.cpu]]
  ## Whether to report per-cpu stats or not
  percpu = true
  ## Whether to report total system cpu stats or not
  totalcpu = true
  ## If true, collect raw CPU time metrics.
  collect_cpu_time = false
  ## If true, compute and report the sum of all non-idle CPU states.
  report_active = false
[[inputs.disk]]
  ## By default stats will be gathered for all mount points.
  ## Set mount_points will restrict the stats to only the specified mount points.
  # mount_points = ["/"]
  ## Ignore mount points by filesystem type.
  ignore_fs = ["tmpfs", "devtmpfs", "devfs", "overlay", "aufs", "squashfs"]
[[inputs.diskio]]
[[inputs.mem]]
[[inputs.net]]
[[inputs.processes]]
[[inputs.swap]]
[[inputs.system]]
[[inputs.ping]]
  ## Hosts to send ping packets to.
  urls = ["192.168.1.1","192.168.3.1"]

  ## Method used for sending pings, can be either "exec" or "native".  When set
  ## to "exec" the systems ping command will be executed.  When set to "native"
  ## the plugin will send pings directly.
  ##
  ## While the default is "exec" for backwards compatibility, new deployments
  ## are encouraged to use the "native" method for improved compatibility and
  ## performance.
  method = "exec"

  ## Number of ping packets to send per interval.  Corresponds to the "-c"
  ## option of the ping command.
  count = 5

  ## Time to wait between sending ping packets in seconds.  Operates like the
  ## "-i" option of the ping command.
  ping_interval = 1.0

  ## If set, the time to wait for a ping response in seconds.  Operates like
  ## the "-W" option of the ping command.
  timeout = 1.0

  ## If set, the total ping deadline, in seconds.  Operates like the -w option
  ## of the ping command.
  # deadline = 10

  ## Interface or source address to send ping from.  Operates like the -I or -S
  ## option of the ping command.
  # interface = ""

  ## Percentiles to calculate. This only works with the native method.
  # percentiles = [50, 95, 99]

  ## Specify the ping executable binary.
  binary = "ping"

  ## Arguments for ping command. When arguments is not empty, the command from
  ## the binary option will be used and other options (ping_interval, timeout,
  ## etc) will be ignored.
  # arguments = ["-c", "3"]

  ## Use only IPv6 addresses when resolving a hostname.
  # ipv6 = false
[[inputs.snmp]]
  ## Agent addresses to retrieve values from.
  ##   example: agents = ["udp://127.0.0.1:161"]
  ##            agents = ["tcp://127.0.0.1:161"]
  agents = ["192.168.3.1"]

  ## Timeout for each request.
  timeout = "100s"

  ## SNMP version; can be 1, 2, or 3.
  version = 2

  ## SNMP community string.
  community = "public"

  ## Agent host tag
  # agent_host_tag = "agent_host"

  ## Number of retries to attempt.
  retries = 3

  ## The GETBULK max-repetitions parameter.
  max_repetitions = 10

  ## SNMPv3 authentication and encryption options.
  ##
  ## Security Name.
  ##sec_name = "wqb"
  ## Authentication protocol; one of "MD5", "SHA", or "".
  ##auth_protocol = "MD5"
  ## Authentication password.
  ##auth_password = "cisco12345"
  ## Security Level; one of "noAuthNoPriv", "authNoPriv", or "authPriv".
 ## sec_level = "authNoPriv"
  ## Context Name.
  name = "snmpdv2"
  ### Protocols "AES192", "AES192", "AES256", and "AES256C" require the underlying net-snmp tools 
  ### to be compiled with --enable-blumenthal-aes (http://www.net-snmp.org/docs/INSTALL.html)
  # priv_protocol = ""
  ## Privacy password used for encrypted messages.
  # priv_password = ""

  ## Add fields and tables defining the variables you wish to collect.  This
  ## example collects the system uptime and interface variables.  Reference the
  ## full plugin documentation for configuration details.
  [[inputs.snmp.field]]
    oid = "RFC1213-MIB::sysUpTime.0"
    name = "v2_uptime"

  [[inputs.snmp.field]]
    oid = ".1.3.6.1.4.1.9.9.109.1.1.1.1.6.1"
    name = "cpu5second"

  [[inputs.snmp.field]]  
    oid = "IF-MIB::ifInOctets.1"
    name = " Input_Octets" 
 
  [[inputs.snmp.table]]
    oid = "IF-MIB::ifTable"
    name = "interface"
    inherit_tags = ["hostname"]

    [[inputs.snmp.table.field]]
      oid = "IF-MIB::ifDescr"
      name = "ifDescr"
      is_tag = true
    [[inputs.snmp.table.field]]
      oid = "IF-MIB::ifHCOutOctets"
      name = "ifHCOut"
      is_tag = true
2

Could you please edit your post and post your telegraf config here in markdown format?
This would significantly improve readability.

```toml
put yout telegraf config here
```
3 
```toml
# Configuration for telegraf agent
[agent]
  ## Default data collection interval for all inputs
  interval = "10s"
  ## Rounds collection interval to 'interval'
  ## ie, if interval="10s" then always collect on :00, :10, :20, etc.
  round_interval = true

  ## Telegraf will send metrics to outputs in batches of at most
  ## metric_batch_size metrics.
  ## This controls the size of writes that Telegraf sends to output plugins.
  metric_batch_size = 1000

  ## For failed writes, telegraf will cache metric_buffer_limit metrics for each
  ## output, and will flush this buffer on a successful write. Oldest metrics
  ## are dropped first when this buffer fills.
  ## This buffer only fills when writes fail to output plugin(s).
  metric_buffer_limit = 10000

  ## Collection jitter is used to jitter the collection by a random amount.
  ## Each plugin will sleep for a random time within jitter before collecting.
  ## This can be used to avoid many plugins querying things like sysfs at the
  ## same time, which can have a measurable effect on the system.
  collection_jitter = "0s"

  ## Default flushing interval for all outputs. Maximum flush_interval will be
  ## flush_interval + flush_jitter
  flush_interval = "10s"
  ## Jitter the flush interval by a random amount. This is primarily to avoid
  ## large write spikes for users running a large number of telegraf instances.
  ## ie, a jitter of 5s and interval 10s means flushes will happen every 10-15s
  flush_jitter = "0s"

  ## By default or when set to "0s", precision will be set to the same
  ## timestamp order as the collection interval, with the maximum being 1s.
  ##   ie, when interval = "10s", precision will be "1s"
  ##       when interval = "250ms", precision will be "1ms"
  ## Precision will NOT be used for service inputs. It is up to each individual
  ## service input to set the timestamp at the appropriate precision.
  ## Valid time units are "ns", "us" (or "µs"), "ms", "s".
  precision = ""

  ## Logging configuration:
  ## Run telegraf with debug log messages.
  debug = false
  ## Run telegraf in quiet mode (error log messages only).
  quiet = false
  ## Specify the log file name. The empty string means to log to stderr.
  logfile = ""

  ## Override default hostname, if empty use os.Hostname()
  hostname = ""
  ## If set to true, do no set the "host" tag in the telegraf agent.
  omit_hostname = false
[[outputs.influxdb_v2]]	
  ## The URLs of the InfluxDB cluster nodes.
  ##
  ## Multiple URLs can be specified for a single cluster, only ONE of the
  ## urls will be written to each interval.
  ## urls exp: http://127.0.0.1:8086
  urls = ["http://192.168.26.134:8086"]

  ## Token for authentication.
  token = "$INFLUX_TOKEN"

  ## Organization is the name of the organization you wish to write to; must exist.
  organization = "influxdb"

  ## Destination bucket to write into.
  bucket = "telegraf"
[[inputs.cpu]]
  ## Whether to report per-cpu stats or not
  percpu = true
  ## Whether to report total system cpu stats or not
  totalcpu = true
  ## If true, collect raw CPU time metrics.
  collect_cpu_time = false
  ## If true, compute and report the sum of all non-idle CPU states.
  report_active = false
[[inputs.disk]]
  ## By default stats will be gathered for all mount points.
  ## Set mount_points will restrict the stats to only the specified mount points.
  # mount_points = ["/"]
  ## Ignore mount points by filesystem type.
  ignore_fs = ["tmpfs", "devtmpfs", "devfs", "overlay", "aufs", "squashfs"]
[[inputs.diskio]]
[[inputs.mem]]
[[inputs.net]]
[[inputs.processes]]
[[inputs.swap]]
[[inputs.system]]
[[inputs.ping]]
  ## Hosts to send ping packets to.
  urls = ["192.168.1.1","192.168.3.1"]

  ## Method used for sending pings, can be either "exec" or "native".  When set
  ## to "exec" the systems ping command will be executed.  When set to "native"
  ## the plugin will send pings directly.
  ##
  ## While the default is "exec" for backwards compatibility, new deployments
  ## are encouraged to use the "native" method for improved compatibility and
  ## performance.
  method = "exec"

  ## Number of ping packets to send per interval.  Corresponds to the "-c"
  ## option of the ping command.
  count = 5

  ## Time to wait between sending ping packets in seconds.  Operates like the
  ## "-i" option of the ping command.
  ping_interval = 1.0

  ## If set, the time to wait for a ping response in seconds.  Operates like
  ## the "-W" option of the ping command.
  timeout = 1.0

  ## If set, the total ping deadline, in seconds.  Operates like the -w option
  ## of the ping command.
  # deadline = 10

  ## Interface or source address to send ping from.  Operates like the -I or -S
  ## option of the ping command.
  # interface = ""

  ## Percentiles to calculate. This only works with the native method.
  # percentiles = [50, 95, 99]

  ## Specify the ping executable binary.
  binary = "ping"

  ## Arguments for ping command. When arguments is not empty, the command from
  ## the binary option will be used and other options (ping_interval, timeout,
  ## etc) will be ignored.
  # arguments = ["-c", "3"]

  ## Use only IPv6 addresses when resolving a hostname.
  # ipv6 = false
[[inputs.snmp]]
  ## Agent addresses to retrieve values from.
  ##   example: agents = ["udp://127.0.0.1:161"]
  ##            agents = ["tcp://127.0.0.1:161"]
  agents = ["192.168.3.1"]

  ## Timeout for each request.
  timeout = "100s"

  ## SNMP version; can be 1, 2, or 3.
  version = 2

  ## SNMP community string.
  community = "public"

  ## Agent host tag
  # agent_host_tag = "agent_host"

  ## Number of retries to attempt.
  retries = 3

  ## The GETBULK max-repetitions parameter.
  max_repetitions = 10

  ## SNMPv3 authentication and encryption options.
  ##
  ## Security Name.
  ##sec_name = "wqb"
  ## Authentication protocol; one of "MD5", "SHA", or "".
  ##auth_protocol = "MD5"
  ## Authentication password.
  ##auth_password = "cisco12345"
  ## Security Level; one of "noAuthNoPriv", "authNoPriv", or "authPriv".
 ## sec_level = "authNoPriv"
  ## Context Name.
  name = "snmpdv2"
  ### Protocols "AES192", "AES192", "AES256", and "AES256C" require the underlying net-snmp tools 
  ### to be compiled with --enable-blumenthal-aes (http://www.net-snmp.org/docs/INSTALL.html)
  # priv_protocol = ""
  ## Privacy password used for encrypted messages.
  # priv_password = ""

  ## Add fields and tables defining the variables you wish to collect.  This
  ## example collects the system uptime and interface variables.  Reference the
  ## full plugin documentation for configuration details.
  [[inputs.snmp.field]]
    oid = "RFC1213-MIB::sysUpTime.0"
    name = "v2_uptime"

  [[inputs.snmp.field]]
    oid = ".1.3.6.1.4.1.9.9.109.1.1.1.1.6.1"
    name = "cpu5second"

  [[inputs.snmp.field]]  
    oid = "IF-MIB::ifInOctets.1"
    name = " Input_Octets" 
 
  [[inputs.snmp.table]]
    oid = "IF-MIB::ifTable"
    name = "interface"
    inherit_tags = ["hostname"]

    [[inputs.snmp.table.field]]
      oid = "IF-MIB::ifDescr"
      name = "ifDescr"
      is_tag = true
    [[inputs.snmp.table.field]]
      oid = "IF-MIB::ifHCOutOctets"
      name = "ifHCOut"
      is_tag = true

Hello Franky1, nice to see your response. Yeah,I have edited the config file and the problem is as following:

  1. I can see the metrics of fields in "[[inputs.snmp.field]] " in influxdb, but I can see nothing from “[inputs.snmp.table]” in influxdb, I don’t know why.

Thank you!