Add delimiter parameter of in_syslog - #646
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The parameter is defined at lib/fluent/plugin/in_syslog.rb:106-107
desc 'The delimiter value "\n"'
config_param :delimiter, :string, default: "\n"
but input/syslog.md had no section for it under "Parameters". The
"TCP Protocol and Message Delimiter" section described the concept
without mentioning that the character is configurable, so a link to the
new section is added there too.
The two limitations described come from the code:
* #start_tcp_server (l.183) is the only reader, so the parameter has no
effect on the udp transport, where #start_udp_server (l.176-180)
handles one datagram as one message.
* l.185 is `delimiter = octet_count_frame ? " " : @delimiter`, so
`frame_type octet_count` ignores it.
Verified by sending messages over each transport: `delimiter "||"` splits
on "||" with <transport tcp>, and is ignored with `frame_type octet_count`
and with udp.
Introduced by 3e4327a0 "support config delimiter in syslog plugin", first
released in v1.5.0.
Signed-off-by: Shizuo Fujita <fujita@clear-code.com>
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The parameter is defined at lib/fluent/plugin/in_syslog.rb:106-107
but input/syslog.md had no section for it under "Parameters". The "TCP Protocol and Message Delimiter" section described the concept without mentioning that the character is configurable, so a link to the new section is added there too.
The two limitations described come from the code:
delimiter = octet_count_frame ? " " : @delimiter, soframe_type octet_countignores it.Verified by sending messages over each transport:
delimiter "||"splits on "||" with , and is ignored withframe_type octet_countand with udp.Introduced at fluent/fluentd#2378