out_fileTimeSliced Output plugin writes events to files. By default, it creates files on a daily basis (around 00:10). This means that when you first import records using the plugin, no file is created immediately. The file will be created when the
time_slice_formatcondition has been met. To change the output frequency, please modify the
out_fileis included in Fluentd's core. No additional installation process is required.
The value must be
The Path of the file. The actual path is path + time + ".log". The time portion is determined by the time_slice_format parameter, descried below.
pathparameter is used as
buffer_pathin this plugin.
Initially, you may see a file which looks like \"/path/to/file.20140101.log.b4eea2c8166b147a0\". This is an intermediate buffer file (\"b4eea2c8166b147a0\" identifies the buffer). Once the content of the buffer has been completely flushed, you will see the output file without the trailing identifier.
The flushed chunk is appended to existence file or not. The default is
false. By default, out_file flushes each chunk to different path.
# append false
This makes parallel file processing easy. But if you want to disable this behaviour, you can disable it by setting
# append true
The format of the file content. The default is
The format of the time written in files. The default format is ISO-8601.
Uses UTC for path formatting. The default format is localtime.
Compresses flushed files using
gzip. No compression is performed by default.
Create symlink to temporary buffered file when
file. No symlink is created by default. This is useful for tailing file content to check logs.
For advanced usage, you can tune Fluentd's internal buffering mechanism with these parameters.
The time format used as part of the file name. The following characters are replaced with actual values when the file is created:
- \%Y: year including the century (at least 4 digits)
- \%m: month of the year (01..12)
- \%d: Day of the month (01..31)
- \%H: Hour of the day, 24-hour clock (00..23)
- \%M: Minute of the hour (00..59)
- \%S: Second of the minute (00..60)
The default format is
%Y%m%d%H, which creates one file per hour.
The amount of time Fluentd will wait for old logs to arrive. This is used to account for delays in logs arriving to your Fluentd node. The default wait time is 10 minutes ('10m'), where Fluentd will wait until 10 minutes past the hour for any logs that occurred within the past hour.
For example, when splitting files on an hourly basis, a log recorded at 1:59 but arriving at the Fluentd node between 2:00 and 2:10 will be uploaded together with all the other logs from 1:00 to 1:59 in one transaction, avoiding extra overhead. Larger values can be set as needed.
The length of the chunk queue and the size of each chunk, respectively. Please see the Buffer Plugin Overview article for the basic buffer structure. The default values are 64 and 8m, respectively. The suffixes "k" (KB), "m" (MB), and "g" (GB) can be used for buffer_chunk_limit.
The interval between data flushes. The default is 60s. The suffixes "s" (seconds), "m" (minutes), and "h" (hours) can be used.
If set to true, Fluentd waits for the buffer to flush at shutdown. By default, it is set to true for Memory Buffer and false for File Buffer.
The initial and maximum intervals between write retries. The default values are 1.0 and unset (no limit). The interval doubles (with +/-12.5% randomness) every retry until
Since td-agent will retry 17 times before giving up by default (see the
retry_limitparameter for details), the sleep interval can be up to approximately 131072 seconds (roughly 36 hours) in the default configurations.
The limit on the number of retries before buffered data is discarded, and an option to disable that limit (if true, the value of
retry_limitis ignored and there is no limit). The default values are 17 and false (not disabled). If the limit is reached, buffered data is discarded and the retry interval is reset to its initial value (
The number of threads to flush the buffer. This option can be used to parallelize writes into the output(s) designated by the output plugin. The default is 1.
Same as Buffered Output but default value is changed to
log_leveloption allows the user to set different levels of logging for each plugin. The supported log levels are: