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cluster/websocket: Make websocket dispatcher queue size configurable

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Limit the number WebSocket events queued from external clients to
dispatcher instances to produce back pressure to the clients if
Zeek's IO loop is overloaded.
This commit is contained in:
Arne Welzel 2025-04-16 16:59:05 +02:00
parent 6bd624d9b2
commit 011029addc
9 changed files with 45 additions and 10 deletions
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11
src/cluster/websocket/WebSocket.h
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@ -171,7 +171,13 @@ class ReplyMsgThread;
*/
class WebSocketEventDispatcher {
public:
WebSocketEventDispatcher();
/**
* Constructor.
*
* @param ident A string identifying this dispatcher instance. Used in metrics.
* @param queue_size Maximum queue size before events are stalled.
*/
WebSocketEventDispatcher(std::string ident, size_t queue_size);
~WebSocketEventDispatcher();
@ -295,12 +301,13 @@ struct ServerOptions {
int ping_interval_seconds = 5;
int max_connections = 100;
bool per_message_deflate = false;
size_t max_event_queue_size = 32;
struct TLSOptions tls_options;
bool operator==(const ServerOptions& o) const {
return host == o.host && port == o.port && ping_interval_seconds == o.ping_interval_seconds &&
max_connections == o.max_connections && per_message_deflate == o.per_message_deflate &&
tls_options == o.tls_options;
max_event_queue_size == o.max_event_queue_size && tls_options == o.tls_options;
}
};