fluentd-sub-second-precision Data is loaded into elasticsearch, but I don't know if some records are maybe missing. Defaults to 4294967295 (2**32 - 1). According to the document of fluentd, buffer is essentially a set of chunk. This sometimes have a problem in Output plugins. The problem is aggregator is flushing to storage even before the time_slice_wait or flush_interval time. I think we might want to reduce the verbosity of the fluentd logs though - seeing this particular error, and seeing it frequently at startup, is going to be distressing to users. Other case is generated events are invalid for output configuration, e.g. 2016-12-19 12:00:00 +0000 [warn]: buffer flush took longer time than slow_flush_log_threshold: elapsed_time=15.0031226690043695 slow_flush_log_threshold=10.0 plugin_id="es_output" - if all the RAM allocated to the fluentd is consumed logs will not be sent anymore. These 2 stages are called stage and queue respectively. Try to use file-based buffers with the below configurations https://github.com/uken/fluent-plugin-elasticsearch/issues/413 schema mismatch, buffer flush always failed. fluentd-max-retries. Buffer. If you see following message in the fluentd log, your output destination or network has a problem and it causes slow chunk flush. Fluentd receives various events from various data sources. In the case where fluentd reports "unable to flush buffer" because Elasticsearch is not running, then yes, this is not a bug. fluentd-retry-wait. The problem is whenever ES node is unreachable fluentd buffer fills up. For example, if one application generates invalid events for data destination, e.g. Its just only 1% of the buffer its using, hence its not an issue with exceeding the buffer queue. Defaults to the amount of RAM available to the container. Chunk is filled by incoming events and is written into file or memory. How long to wait between retries. It starts flushing after a minute, without considering the flush_interval time at all. Fluentd running in trace log level and there is no information regarding error, I have tried force flush but no luck.Then changed buffer folder for debug and trace logs, this … The timeouts appear regularly in the log. Buffer actually has 2 stages to store chunks. I have 1 TB of buffer space, so the buffer queu is also low. There are two disadvantages to this type of buffer - if the pod or containers are restarted logs that in the buffer will be lost. required field is missing. Defaults to 1 second. Typically buffer has an enqueue thread which pushes chunks to queue. The maximum number of retries. The amount of data to buffer before flushing to disk. fluentd-buffer-limit. Problem I am getting these errors.
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