Statistics¶
Server¶
Server related statistics are rooted at server. with following statistics:
Name |
Type |
Description |
---|---|---|
uptime |
Gauge |
Current server uptime in seconds |
concurrency |
Gauge |
Number of worker threads |
memory_allocated |
Gauge |
Current amount of allocated memory in bytes. Total of both new and old Envoy processes on hot restart. |
memory_heap_size |
Gauge |
Current reserved heap size in bytes. New Envoy process heap size on hot restart. |
live |
Gauge |
1 if the server is not currently draining, 0 otherwise |
state |
Gauge |
Current State of the Server. |
parent_connections |
Gauge |
Total connections of the old Envoy process on hot restart |
total_connections |
Gauge |
Total connections of both new and old Envoy processes |
version |
Gauge |
Integer represented version number based on SCM revision or :ref:stats_server_version_override` <envoy_api_field_config.bootstrap.v2.Bootstrap.header_prefix>` if set. |
days_until_first_cert_expiring |
Gauge |
Number of days until the next certificate being managed will expire |
hot_restart_epoch |
Gauge |
Current hot restart epoch |
initialization_time_ms |
Histogram |
Total time taken for Envoy initialization in milliseconds. This is the time from server start-up until the worker threads are ready to accept new connections |
debug_assertion_failures |
Counter |
Number of debug assertion failures detected in a release build if compiled with –define log_debug_assert_in_release=enabled or zero otherwise |
static_unknown_fields |
Counter |
Number of messages in static configuration with unknown fields |
dynamic_unknown_fields |
Counter |
Number of messages in dynamic configuration with unknown fields |
File system¶
Statistics related to file system are emitted in 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 |