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Copy file name to clipboardExpand all lines: administration/networking.md
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@@ -56,19 +56,25 @@ On Linux, the effective backlog value might be capped by the kernel parameter `n
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The following table describes the network configuration properties available and their usage in optimizing performance or adjusting configuration needs for plugins that rely on networking I/O:
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| Property | Description | Default |
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| :------- |:------------|:--------|
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|`net.connect_timeout`| Set maximum time expressed in seconds to wait for a TCP connection to be established, including the TLS handshake time. |`10`|
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|`net.connect_timeout_log_error`| On connection timeout, specify if it should log an error. When disabled, the timeout is logged as a debug message. |`true`|
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|`net.dns.mode`| Select the primary DNS connection type (TCP or UDP). Can be set in the `[SERVICE]` section and overridden on a per plugin basis if desired. |_none_|
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|`net.dns.prefer_ipv4`| Prioritize IPv4 DNS results when trying to establish a connection. |`false`|
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|`net.dns.resolver`| Select the primary DNS resolver type (`LEGACY` or `ASYNC`). |_none_|
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|`net.keepalive`| Enable or disable connection keepalive support. Accepts a Boolean value: `on` or `off`. |`on`|
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|`net.keepalive_idle_timeout`| Set maximum time expressed in seconds for an idle keepalive connection. |`30`|
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|`net.keepalive_max_recycle`| Set maximum number of times a keepalive connection can be used before it's retired. |`2000`|
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|`net.max_worker_connections`| Set maximum number of TCP connections that can be established per worker. |`0` (unlimited) |
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|`net.source_address`| Specify network address to bind for data traffic. |_none_|
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|`net.backlog`| Set the maximum number of pending connections for listening sockets. This option requires Fluent Bit version 4.0.4 or later. |`128`|
|`net.connect_timeout`| Set maximum time allowed to establish a connection, this time includes the TLS handshake. |`10s`|
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|`net.connect_timeout_log_error`| On connection timeout, specify if it should log an error. When disabled, the timeout is logged as a debug message. |`true`|
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|`net.io_timeout`| Set maximum time a connection can stay idle while assigned. |`0s`|
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|`net.keepalive`| Enable or disable connection keepalive support. |`true`|
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|`net.keepalive_idle_timeout`| Set maximum time expressed in seconds for an idle keepalive connection. |`30s`|
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|`net.dns.mode`| Select the primary DNS connection type (`TCP` or `UDP`). |_none_|
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|`net.dns.prefer_ipv4`| Prioritize IPv4 DNS results when trying to establish a connection. |`false`|
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|`net.dns.prefer_ipv6`| Prioritize IPv6 DNS results when trying to establish a connection. |`false`|
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|`net.dns.resolver`| Select the primary DNS resolver type (`LEGACY` or `ASYNC`). |_none_|
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|`net.keepalive_max_recycle`| Set maximum number of times a keepalive connection can be used before it's retired. |`2000`|
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|`net.max_worker_connections`| Set maximum number of TCP connections that can be established per worker. |`0`|
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|`net.proxy_env_ignore`| Ignore the environment variables `HTTP_PROXY`, `HTTPS_PROXY` and `NO_PROXY` when set. |`false`|
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|`net.tcp_keepalive`| Enable or disable Keepalive support. |`off`|
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|`net.tcp_keepalive_time`| Interval between the last data packet sent and the first TCP keepalive probe. |`-1`|
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|`net.tcp_keepalive_interval`| Interval between TCP keepalive probes when no response is received on a keepidle probe. |`-1`|
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|`net.tcp_keepalive_probes`| Number of unacknowledged probes to consider a connection dead. |`-1`|
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|`net.source_address`| Specify network address to bind for data traffic. |_none_|
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## Example
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format: json_lines
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# Networking Setup
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net.dns.mode: TCP
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net.connect_timeout: 5
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net.connect_timeout: 5s
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net.source_address: 127.0.0.1
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net.keepalive: on
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net.keepalive_idle_timeout: 10
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net.keepalive: true
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net.keepalive_idle_timeout: 10s
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```
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{% endtab %}
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format json_lines
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# Networking Setup
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net.dns.mode TCP
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net.connect_timeout 5
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net.connect_timeout 5s
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net.source_address 127.0.0.1
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net.keepalive on
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net.keepalive_idle_timeout 10
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net.keepalive true
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net.keepalive_idle_timeout 10s
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```
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{% endtab %}
@@ -152,4 +158,4 @@ $ nc -l 9090
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If the `net.keepalive` option isn't enabled, Fluent Bit closes the TCP connection and netcat quits.
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After the five records arrive, the connection idles. After 10 seconds, the connection closes due to `net.keepalive_idle_timeout`.
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After the five records arrive, the connection idles. After 10 seconds, the connection closes due to `net.keepalive_idle_timeout`.
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