...
Connection | Connections to the WCS server |
|---|---|
connections | Overall number of connections |
connections_rtmfp | Number of RTMFP connections (Flash) |
connections_websocket | Number of WebSocket connections |
Port | Ports listened by the WCS server |
| ports_media_free | Free media ports |
ports_media_busy | Busy media ports |
ports_media_quarantine | Media ports in quarantine |
ports_wcs_agents_free | Free CDN used ports |
ports_wcs_agents_busy | Busy CDN used ports |
ports_wcs_agents_quarantine | CDN used ports in quarantine |
Stream | Audio and video stream sessions on the WCS server |
streams_rtsp_in | Number of active RTSP sessions sending traffic |
streams_rtsp_out | Number of active RTSP sessions receiving traffic |
streams_websocket_out | Number of active streams played by WebSocket |
streams_rtmp_out | Number of active RTMP streams |
streams_webrtc_in | Number of active streams published via WebRTC |
streams_webrtc_out | Number of active streams played via WebRTC |
streams_rtmfp_in | Number of active streams published via RTMFP |
streams_rtmfp_out | Number of active streams played via RTMFP |
streams_viewers | Number of active clients playing published streams |
| streams_synchronization | Streams published synchronization |
Native resources | Information about resource usage |
native_resources | Information about encoding/decoding of the media stream |
Core | System parameters (obtained using Java methods) and parameters of the WCS server |
core_threads | Number of active threads of the WCS server process |
core_java_threads | Current number of live threads |
core_java_committedMemory | Amount of guaranteed available virtual memory, in bytes |
core_java_freePhysicalMemorySize | Amount of free physical memory, in bytes |
core_java_arch | Operating system architecture |
core_java_availableProcessors | Number of processors available for the Java virtual machine |
core_java_freeSwapSpaceSize | Amount of free swap space, in bytes |
core_java_maxFileDescriptorCount | Maximum number of file descriptors |
core_java_open_file_descriptors | Number of file descriptors opened in the Java virtual machine |
core_java_cpu_usage | "Recent CPU usage" for a process in the Java virtual machine |
core_java_totalPhysicalMemorySize | Amount of physical memory, in bytes |
core_java_totalSwapSpaceSize | Amount of swap space, in bytes |
core_java_uptime | Uptime since Java virtual machine started, in milliseconds |
core_heap_memory_used | Heap memory usage |
core_rss_memory | Memory usage |
core_open_file_descriptors | Number of opened file descriptors |
core_cpu_usage | CPU time percentage used by processes |
core_gc | Information about "garbage collecting" |
core_gc_manager | Information about "garbage collecting" in the Manager |
Call | SIP calls on the WCS server |
sip_calls | Number of SIP calls |
sip_calls_established | Number of active SIP calls |
sip_calls_in | Number of incoming SIP calls |
sip_calls_out | Number of outgoing SIP calls |
sip_calls_per_second (cps) | Number of SIP calls per minute |
SIP | |
sip_registered | Number of client in the REGISTERED state |
Recording | Audio and video file recording |
recording_sessions | Number of active recording sessions |
System | system parameters |
system_java_cpu_usage | "Recent CPU usage" for the entire system (obtained using Java methods) |
system_java_load_average | Average system load for the last minute (obtained using Java methods) |
system_uptime | Uptime since starting of the Linux server |
system_memory_total | Available RAM, in kilobytes |
system_memory_free | Amount of physical RAM not used by the system, in kilobytes |
system_cpu_usage | CPU time percentage used by the processes of the core |
Network Stats (Mbit/s) | Network traffic statistics |
global_bandwidth_in | Incoming connection channel bandwidth |
global_bandwidth_out | Outgoing connection channel bandwidth |
Version info | WCS version info |
wcs_version | Current version of the WCS server |
wcs_client_version | Current version of the WCS API |
Errors info | Error information (obtained based on caught Java exceptions) |
java.io.IOException | Number of IO errors |
java.lang.ArrayIndexOutOfBoundsException | Number of array out of bounds errors |
java.lang.IllegalArgumentException | Number of invalid function argument errors |
com.flashphoner.server.license.activation.A.C | Number of errors while activating the license |
java.lang.NullPointerException | Number of null pointer jump errors |
| Degraded streams | Degraded streams information |
| degraded_streams | Degraded streams quantity |
| degraded_streams_percent | Degraded streams percentage of total number of streams on server |
Transcoding stats | Streams transcoding information |
transcoding_video_decoding_resolutions | List of resolutions decoded in "resolution/streams count" form |
transcoding_video_decoding_average_time | Average decoding time in "resolution/time, ms" form |
transcoding_video_decoding_max_time | Maximum decoding time in "resolution/time, ms" form |
transcoding_video_decoding_average_queue_size | Average decoding queue size in "resolution/queue size" form |
transcoding_video_decoding_max_queue_size | Maximum decoding queue size in "resolution/queue size" form |
transcoding_video_encoding_resolutions | List of resolutions encoded in "resolution/streams count" form |
transcoding_video_encoding_average_time | Average encoding time in "resolution/time, ms" form |
transcoding_video_encoding_max_time | Maximum encoding time in "resolution/time, ms" form |
transcoding_video_encoding_average_queue_size | Average encoding queue size in "resolution/queue size" form |
transcoding_video_encoding_max_queue_size | Maximum encoding queue size in "resolution/queue size" form |
| Transcoding video full info | Stream transcoding details (JSON format only) |
| CDN stats | CDN information |
cdn_version | CDN version supported by server |
cdn_role | Server role in CDN |
cdn_group | CDN group server belongs to |
...
cdn_version - CDN version supported by server
cdn_role - server role in CDN
cdn_group - CDN group the server belongs to, or empty string if server is not belong to any group
Streams published synchronization
Since build 5.2.508 audio and video synchronization information for streams published is added to stream statistics:
| Code Block | ||
|---|---|---|
| ||
-----Stream Stats-----
streams_synchronization=stream1/90,stream2/-11 |
Synchronization metric value is calculated as difference between current audio and video synchronization values:
| Code Block | ||||
|---|---|---|---|---|
| ||||
var metric = lastAudioSync - lastVideoSync; |
Therefore, a positive metric value means audio is currently ahead of video, and negative means audio is currently behind video.
This metric normally changes withis small limits. If synchronization metric for the stream remaihs high with constant sign, it mean some problem with stream publishing.