| TCP | 6030 | Communication between client and server. In a multi-node cluster, communication between nodes. serverPort |
| TCP | 6041 | REST connection between client and server | Prior to 2.4.0.0: serverPort+11; After 2.4.0.0 refer to [taosAdapter](/reference/taosadapter/) |
| TCP | 6043 | Service Port of taosKeeper | The parameter of taosKeeper |
| TCP | 6044 | Data access port for StatsD | Configurable through taosAdapter parameters.
| UDP | 6045 | Data access for statsd | Configurable through taosAdapter parameters.
| TCP | 6060 | Port of Monitoring Service in Enterprise version | |
| Protocol | Default Port | Description | How to configure |
| TCP | 6030 | Communication between client and server. In a multi-node cluster, communication between nodes. serverPort |
| TCP | 6041 | REST connection between client and server | Prior to 2.4.0.0: serverPort+11; After 2.4.0.0 refer to [taosAdapter](/reference/taosadapter/) |
| TCP | 6043 | Service Port of taosKeeper | The parameter of taosKeeper |
| TCP | 6044 | Data access port for StatsD | Configurable through taosAdapter parameters. |
| UDP | 6045 | Data access for statsd | Configurable through taosAdapter parameters. |
| TCP | 6060 | Port of Monitoring Service in Enterprise version | |
### maxShellConns
...
...
@@ -97,6 +97,24 @@ The parameters described in this document by the effect that they have on the sy
| Meaning | The switch for monitoring inside server. The main object of monitoring is to collect information about load on physical nodes, including CPU usage, memory usage, disk usage, and network bandwidth. Monitoring information is sent over HTTP to the taosKeeper service specified by `monitorFqdn` and `monitorProt`.
| Value Range | 0: monitoring disabled, 1: monitoring enabled |
| Meaning | The switch for monitoring inside server. The main object of monitoring is to collect information about load on physical nodes, including CPU usage, memory usage, disk usage, and network bandwidth. Monitoring information is sent over HTTP to the taosKeeper service specified by `monitorFqdn` and `monitorProt`. |
| Value Range | 0: monitoring disabled, 1: monitoring enabled |
| Default | 0 |
### monitorFqdn
| Attribute | Description |
| -------- | -------------------------- |
| Applicable | Server Only |
| Meaning | FQDN of taosKeeper monitoring service |
| Meaning | Execution policy for query statements |
| Unit | None |
| Default | 1 |
| Value Range | 1: Run queries on vnodes and not on qnodes; 2: Run subtasks without scan operators on qnodes and subtasks with scan operators on vnodes; 3: Only run scan operators on vnodes, and run all other operators on qnodes. |
### querySmaOptimize
| Attribute | Description |
| -------- | -------------------- |
| Applicable | Client only |
| Meaning | SMA index optimization policy |
| Unit | None |
| Default Value | 0 |
| Notes |0: Disable SMA indexing and perform all queries on non-indexed data; 1: Enable SMA indexing and perform queries from suitable statements on precomputation results.|
| Notes | 0: Disable SMA indexing and perform all queries on non-indexed data; 1: Enable SMA indexing and perform queries from suitable statements on precomputation results. |
### countAlwaysReturnValue
| Attribute | Description |
| -------- | -------------------------------- |
| Applicable | Server only |
| Meaning | count()/hyperloglog() return value or not if the input data is empty or NULL |
| Notes | When this parameter is setting to 1, for queries containing GROUP BY, PARTITION BY and INTERVAL clause, and input data in certain groups or windows is empty or NULL, the corresponding groups or windows have no return values |
| Notes | When this parameter is setting to 1, for queries containing GROUP BY, PARTITION BY and INTERVAL clause, and input data in certain groups or windows is empty or NULL, the corresponding groups or windows have no return values |
| Meaning | All data files are stored in this directory |
| Default Value | /var/lib/taos |
| Note | The [Tiered Storage](https://docs.tdengine.com/tdinternal/arch/#tiered-storage) function needs to be used in conjunction with the [KEEP](https://docs.tdengine.com/taos-sql/database/#parameters) parameter |
| Meaning | Whether to generate core file when server crashes |
| Value Range | 0: false, 1: true |
| Default Value | 1 |
| Note | The core file is generated under root directory `systemctl start taosd`/`launchctl start com.tdengine.taosd` is used to start, or under the working directory if `taosd` is started directly on Linux/macOS Shell. |
