_tcollector.mdx

### Configuring taosAdapter

To configure taosAdapter to receive TCollector data.

- Enable the configuration item in the taosAdapter configuration file (default location /etc/taos/taosadapter.toml)

```
...
[opentsdb_telnet]
enable = true
maxTCPConnections = 250
tcpKeepAlive = false
dbs = ["opentsdb_telnet", "collectd", "icinga2", "tcollector"]
ports = [6046, 6047, 6048, 6049]
user = "root"
password = "taosdata"
...
```

The taosAdapter writes to the database with the default name `tcollector`. You can also modify the taosAdapter configuration file dbs entry to specify a different name. user and password fill in the actual TDengine configuration values. After changing the configuration file, you need to restart the taosAdapter.

- You can also enable taosAdapter to receive tcollector data by using the taosAdapter command-line parameters or setting environment variables.

### Configuring TCollector

To use TCollector, you need to download its [source code](https://github.com/OpenTSDB/tcollector). Its configuration items are in its source code. Note: TCollector differs significantly from version to version, so here is an example of the latest code for the current master branch (git commit: 37ae920).

Modify the contents of the `collectors/etc/config.py` and `tcollector.py` files. Change the address of the OpenTSDB host to the domain name or IP address of the server where taosAdapter is deployed, and change the port to the port that taosAdapter supports TCollector on (default is 6049).

Example of git diff output of source code changes.

```
index e7e7a1c..ec3e23c 100644
--- a/collectors/etc/config.py
+++ b/collectors/etc/config.py
@@ -59,13 +59,13 @@ def get_defaults():
         'http_password': False,
         'reconnectinterval': 0,
         'http_username': False,
-        'port': 4242,
+        'port': 6049,
         'pidfile': '/var/run/tcollector.pid',
         'http': False,
         'http_api_path': "api/put",
         'tags': [],
         'remove_inactive_collectors': False,
-        'host': '',
+        'host': '127.0.0.1',
         'logfile': '/var/log/tcollector.log',
         'cdir': default_cdir,
         'ssl': False,
diff --git a/tcollector.py b/tcollector.py
index 21f9b23..4c71ba2 100755
--- a/tcollector.py
+++ b/tcollector.py
@@ -64,7 +64,7 @@ ALIVE = True
 # exceptions, something is not right and tcollector will shutdown.
 # Hopefully some kind of supervising daemon will then restart it.
 MAX_UNCAUGHT_EXCEPTIONS = 100
-DEFAULT_PORT = 4242
+DEFAULT_PORT = 6049
 MAX_REASONABLE_TIMESTAMP = 2209212000  # Good until Tue  3 Jan 14:00:00 GMT 2040
 # How long to wait for datapoints before assuming
 # a collector is dead and restarting it
@@ -943,13 +943,13 @@ def parse_cmdline(argv):
             'http_password': False,
             'reconnectinterval': 0,
             'http_username': False,
-            'port': 4242,
+            'port': 6049,
             'pidfile': '/var/run/tcollector.pid',
             'http': False,
             'http_api_path': "api/put",
             'tags': [],
             'remove_inactive_collectors': False,
-            'host': '',
+            'host': '127.0.0.1',
             'logfile': '/var/log/tcollector.log',
             'cdir': default_cdir,
             'ssl': False,
```