Statistics¶
Currently only the gRPC and file based access logs have statistics.
gRPC access log statistics¶
The gRPC access log has statistics rooted at access_logs.grpc_access_log. with the following statistics:
Name |
Type |
Description |
|---|---|---|
logs_written |
Counter |
Total log entries sent to the logger which were not dropped. This does not imply the logs have been flushed to the gRPC endpoint yet. |
logs_dropped |
Counter |
Total log entries dropped due to network or HTTP/2 back up. |
File access log statistics¶
The file access log has statistics rooted at the filesystem. namespace.
Name |
Type |
Description |
|---|---|---|
write_buffered |
Counter |
Total number of times file data is moved to Envoy’s internal flush buffer |
write_completed |
Counter |
Total number of times a file was successfully written |
write_failed |
Counter |
Total number of times an error occurred during a file write operation |
flushed_by_timer |
Counter |
Total number of times internal flush buffers are written to a file due to flush timeout |
reopen_failed |
Counter |
Total number of times a file was failed to be opened |
write_total_buffered |
Gauge |
Current total size of internal flush buffer in bytes |