Influxdb Error (Fixed)

Hi Guys .
i have a Error and not sure what it is. my influx stoped . what could this be.

2020-06-23 14:05:02.064 [ERROR] [org.influxdb.impl.BatchProcessor    ] - Batch could not be sent. Data will be lost

retrofit.RetrofitError: Connection refused (Connection refused)

	at retrofit.RetrofitError.networkError(RetrofitError.java:27) ~[retrofit-1.9.0.jar:?]

	at retrofit.RestAdapter$RestHandler.invokeRequest(RestAdapter.java:395) ~[retrofit-1.9.0.jar:?]

	at retrofit.RestAdapter$RestHandler.invoke(RestAdapter.java:240) ~[retrofit-1.9.0.jar:?]

	at org.influxdb.impl.$Proxy197.writePoints(Unknown Source) ~[?:?]

	at org.influxdb.impl.InfluxDBImpl.write(InfluxDBImpl.java:151) ~[influxdb-java-2.2.jar:?]

	at org.influxdb.impl.BatchProcessor.write(BatchProcessor.java:171) [influxdb-java-2.2.jar:?]

	at org.influxdb.impl.BatchProcessor$1.run(BatchProcessor.java:144) [influxdb-java-2.2.jar:?]

	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_252]

	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) [?:1.8.0_252]

	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) [?:1.8.0_252]

	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) [?:1.8.0_252]

	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_252]

	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_252]

	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_252]

Caused by: java.net.ConnectException: Connection refused (Connection refused)

	at java.net.PlainSocketImpl.socketConnect(Native Method) ~[?:1.8.0_252]

	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) ~[?:1.8.0_252]

	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) ~[?:1.8.0_252]

	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) ~[?:1.8.0_252]

	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[?:1.8.0_252]

	at java.net.Socket.connect(Socket.java:607) ~[?:1.8.0_252]

	at com.squareup.okhttp.internal.Platform.connectSocket(Platform.java:100) ~[okhttp-2.4.0.jar:?]

	at com.squareup.okhttp.internal.http.SocketConnector.connectRawSocket(SocketConnector.java:160) ~[okhttp-2.4.0.jar:?]

	at com.squareup.okhttp.internal.http.SocketConnector.connectCleartext(SocketConnector.java:67) ~[okhttp-2.4.0.jar:?]

	at com.squareup.okhttp.Connection.connect(Connection.java:152) ~[okhttp-2.4.0.jar:?]

	at com.squareup.okhttp.Connection.connectAndSetOwner(Connection.java:185) ~[okhttp-2.4.0.jar:?]

	at com.squareup.okhttp.OkHttpClient$1.connectAndSetOwner(OkHttpClient.java:128) ~[okhttp-2.4.0.jar:?]

	at com.squareup.okhttp.internal.http.HttpEngine.nextConnection(HttpEngine.java:341) ~[okhttp-2.4.0.jar:?]

	at com.squareup.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:330) ~[okhttp-2.4.0.jar:?]

	at com.squareup.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:248) ~[okhttp-2.4.0.jar:?]

	at com.squareup.okhttp.Call.getResponse(Call.java:273) ~[okhttp-2.4.0.jar:?]

	at com.squareup.okhttp.Call$ApplicationInterceptorChain.proceed(Call.java:230) ~[okhttp-2.4.0.jar:?]

	at com.squareup.okhttp.Call.getResponseWithInterceptorChain(Call.java:201) ~[okhttp-2.4.0.jar:?]

	at com.squareup.okhttp.Call.execute(Call.java:81) ~[okhttp-2.4.0.jar:?]

	at retrofit.client.OkClient.execute(OkClient.java:53) ~[retrofit-1.9.0.jar:?]

	at retrofit.RestAdapter$RestHandler.invokeRequest(RestAdapter.java:326) ~[retrofit-1.9.0.jar:?]

	... 12 more

Typically a Connection Refused error happens when a service is up enough to grab onto a port but not up enough to actually process anything. For example, if I ssh to a machine that is actively shutting down I’ll get connection refused. When the machine is offline or coming up and sshd is not yet running the ssh will time out. When sshd first starts but is not ready for connections I’ll receive connection refused again.

So your InfluxDB is online but it is not healthy. Have you tried restarting it?

i am new to the db thing got it working and for a while it worked and now i get this. where must i start ?

sudo systemctl restart influxdb

Did that and ran status :
This is the output :

influxdb.service - InfluxDB is an open-source, distributed, time series databa
   Loaded: loaded (/lib/systemd/system/influxdb.service; enabled; vendor preset:
   Active: active (running) since Tue 2020-06-23 18:04:34 SAST; 4s ago
     Docs: https://docs.influxdata.com/influxdb/
 Main PID: 1247 (influxd)
    Tasks: 13 (limit: 4554)
   CGroup: /system.slice/influxdb.service
           └─1247 /usr/bin/influxd -config /etc/influxdb/influxdb.conf

Jun 23 18:04:55 openhab influxd[1278]: ts=2020-06-23T16:04:55.942719Z lvl=info m
Jun 23 18:04:55 openhab influxd[1278]: ts=2020-06-23T16:04:55.946180Z lvl=info m
Jun 23 18:04:56 openhab influxd[1278]: ts=2020-06-23T16:04:56.225783Z lvl=info m
Jun 23 18:04:56 openhab influxd[1278]: ts=2020-06-23T16:04:56.226053Z lvl=info m
Jun 23 18:04:56 openhab influxd[1278]: ts=2020-06-23T16:04:56.227672Z lvl=info m
Jun 23 18:04:56 openhab influxd[1278]: ts=2020-06-23T16:04:56.227777Z lvl=info m
Jun 23 18:04:59 openhab influxd[1278]: ts=2020-06-23T16:04:59.112756Z lvl=info m
Jun 23 18:04:59 openhab influxd[1278]: ts=2020-06-23T16:04:59.112936Z lvl=info m
Jun 23 18:04:59 openhab influxd[1278]: ts=2020-06-23T16:04:59.114852Z lvl=info m
Jun 23 18:04:59 openhab influxd[1278]: ts=2020-06-23T16:04:59.116266Z lvl=info m
Jun 23 18:05:01 openhab influxd[1278]: ts=2020-06-23T16:05:01.836265Z lvl=info m
Jun 23 18:05:01 openhab influxd[1278]: ts=2020-06-23T16:05:01.836409Z lvl=info m
Jun 23 18:05:01 openhab influxd[1278]: ts=2020-06-23T16:05:01.837454Z lvl=info m
Jun 23 18:05:01 openhab influxd[1278]: ts=2020-06-23T16:05:01.837661Z lvl=info m
Jun 23 18:05:02 openhab influxd[1278]: ts=2020-06-23T16:05:02.641800Z lvl=info m
lines 1-24

The status for InfluxDB looks good. I assume that you’ve checked openHAB after this restart and it still doesn’t write to the database?

Do you have any idea what you might have changed between the time it worked and now?

Do you use Grafana to access the data in the InfluxDB database? If so, does that work?

Is InfluxDB running on the same machine as OH?

Can you post the HTTP endpoint section of your /etc/influxdb/influxdb.conf file? Does it have auth-enabled? What is the :bind-address set to?

I have and still get that error .

All i think is that the system updated ? nothing els changed.

Yes i do. it shows me the following in a red block with exclamation mark (Network Error: Bad Gateway(502))

url=http://localhost:8086
user=openhab
password=openhab
db=openhab_db
retentionPolicy=autogen

Persistence

Strategies {
    everyMinute : "0 * * * * ?"
    everyHour   : "0 0 * * * ?"
    everyDay    : "0 0 0 * * ?"

    default = everyChange
}

Items {
// System 
    
    DB_Temp                         : strategy = everyChange
    DBCPU_Temp                      : strategy = everyChange
    DBmem_used                      : strategy = everyChange
    DBdrive_used                    : strategy = everyChange

//Speed Test
    SpeedtestResultPing             : strategy = everyChange
    SpeedtestResultDown             : strategy = everyChange
    SpeedtestResultUp               : strategy = everyChange

//OpemHAB Server
    Sensor_CPUTemp                  : strategy = everyChange
    CPU_Uptime                      : strategy = everyChange
    Memory_Available_Percent        : strategy = everyChange
    Memory_Used_Percent             : strategy = everyChange
//Room Condition Monitoring
    MasterBedroom_Humidity          : strategy = everyMinute
    MasterBedroom_Temperature       : strategy = everyMinute
    GuestRoom_Temperature           : strategy = everyMinute
    GuestRoom_Humidity              : strategy = everyMinute
    Kitchen_Temperature             : strategy = everyMinute
    Kitchen_Humidity                : strategy = everyMinute
    Kitchen_Gas                     : strategy = everyMinute
    Bathroom_Temperature            : strategy = everyMinute
    Bathroom_Humidity               : strategy = everyMinute
    FamilyRoom_Temperature          : strategy = everyMinute
    FamilyRoom_Humidity             : strategy = everyMinute
    FamilyRoom_Smoke                : strategy = everyMinute
    
//Light Monitoring
    Bathroom_Light                   : strategy = everyChange
    Hallway_Light                    : strategy = everyChange                    
    Kitchen_Light                    : strategy = everyChange
    Kitchen_Light_Candelaar          : strategy = everyChange
    Kitchen_Light_Stoep              : strategy = everyChange
    MasterBedroom_Light_Ingan        : strategy = everyChange
    MasterBedroom_Light              : strategy = everyChange
    GuestRoom_Light                  : strategy = everyChange





    }

How about that file? Not, the /etc/openhab2 directory, the /etc/influxdb config file.

sorry. here it is :

### 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 = "127.0.0.1:8088"

###
### [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 = "/var/lib/influxdb/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 = "/var/lib/influxdb/data"

  # The directory where the TSM storage engine stores WAL files.
  wal-dir = "/var/lib/influxdb/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 maximum 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 = ":8086"

  # 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 authentication on pprof endpoints. Users will need admin permissions
  # to access the pprof endpoints when this setting is enabled. This setting has
  # no effect if either auth-enabled or pprof-enabled are set to false.
  # pprof-auth-enabled = false

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

  # Enables authentication on the /ping, /metrics, and deprecated /status
  # endpoints. This setting has no effect if auth-enabled is set to false.
  # ping-auth-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 compatibility 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_CHACHA20_POLY1305",
  # ]

  # 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 = "tls1.3"

Perhaps you have an issue with localhost. What happens if you change the OH config file to have?

url=http://127.0.0.1:8086

Also, what happens if you type “influx”? Does it connect? Should say something like this:

$ influx
Connected to http://localhost:8086 version 1.6.2
InfluxDB shell version: 1.6.2

are you using the same machine for OH and for InfluxDB?

Yes both run on the same Server.

openhab@openhab:~$ influx
Failed to connect to http://localhost:8086: Get http://localhost:8086/ping: dial tcp 127.0.0.1:8086: connect: connection refused
Please check your connection settings and ensure 'influxd' is running.
openhab@openhab:~$ 

in my Openhab Config (influxdb.cfg) it says this :

url=http://127.0.0.1:8086

give this :

bind-address = "127.0.0.1:8088"

could it be the ports ?

This indicates your problem has nothing to do with OH. What do you have in /etc/hosts? Can you run “ping localhost”?

Try using nmap to see what is open (below checks the ports between 8080 and 8090):

nmap -sV -p8080-8090 localhost

If it complains about localhost, then try with an IP. (But that would be a huge clue if it complains about localhost!)

nmap -sV -p8080-8090 127.0.0.1

Yes, influxdb.conf has that bind-address in the global section, but the http endpoint section has this:
bind-address = “:8086”

Run the nmap to see what is really going on. I’m unconvinced it is the port number, but maybe it is.

[18:57:18] openhab@openhab:~$ ping localhost
PING localhost (127.0.0.1) 56(84) bytes of data.
64 bytes from localhost (127.0.0.1): icmp_seq=1 ttl=64 time=0.120 ms
64 bytes from localhost (127.0.0.1): icmp_seq=2 ttl=64 time=0.059 ms
64 bytes from localhost (127.0.0.1): icmp_seq=3 ttl=64 time=0.034 ms
64 bytes from localhost (127.0.0.1): icmp_seq=4 ttl=64 time=0.084 ms
64 bytes from localhost (127.0.0.1): icmp_seq=5 ttl=64 time=0.080 ms
[18:57:27] openhab@openhab:~$ nmap -sV -p8080-8090 localhost

Starting Nmap 7.60 ( https://nmap.org ) at 2020-06-24 18:58 SAST
Nmap scan report for localhost (127.0.0.1)
Host is up (0.00040s latency).

PORT     STATE  SERVICE         VERSION
8080/tcp open   http            Jetty 9.4.20.v20190813
8081/tcp closed blackice-icecap
8082/tcp closed blackice-alerts
8083/tcp closed us-srv
8084/tcp closed unknown
8085/tcp closed unknown
8086/tcp open   tcpwrapped
8087/tcp closed simplifymedia
8088/tcp open   tcpwrapped
8089/tcp closed unknown
8090/tcp closed opsmessaging

Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 10.53 seconds

Okay, you are getting beyond my expertise. I did a Google search for this and found that ‘tcpwrapped’ typically means that a firewall is blocking the connectivity. See this. Can you check your firewall settings? Did you make any changes recently?

Those 2 port are the InfluxDB ports, so I think InfluxDB itself is configured correctly. Something is blocking your connectivity to it.

i am not really strong on linux so will have to ask my friend mr. google.

or do you think i must uninstall influx and everything on that and start it all over ?

I uninstalled everything containing to Influxdb . and reinstalled everything.
now it is all working again.