memory

The memory buffer plugin provides a fast buffer implementation. It uses memory to store buffer chunks. When Fluentd is shut down, buffered logs that can't be written quickly are deleted.

Example Config

<match pattern>
  buffer_type memory
</match>

Please see the Config File article for the basic structure and syntax of the configuration file.

Parameters

buffer_type (required)

The value must be memory.

buffer_chunk_limit

The size of each buffer chunk. The default is 8m. The suffixes "k" (KB), "m" (MB), and "g" (GB) can be used. Please see the Buffer Plugin Overview article for the basic buffer structure.

buffer_queue_limit

The length limit of the chunk queue. Please see the Buffer Plugin Overview article for the basic buffer structure. The default limit is 64 chunks.

flush_interval

The interval between data flushes. The suffixes "s" (seconds), "m" (minutes), and "h" (hours) can be used

flush_at_shutdown

If true, queued chunks are flushed at shutdown process. The default is true. If false, queued chunks are discarded unlike buf_file.

retry_wait

The interval between retries. The suffixes "s" (seconds), "m" (minutes), and "h" (hours) can be used.

If this article is incorrect or outdated, or omits critical information, please let us know. Fluentd is a open source project under Cloud Native Computing Foundation (CNCF). All components are available under the Apache 2 License.