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- It's ok to always load the framework. If you don't specifiy the CLUSTER_NODE environment variable it doesn't ultimately do anything. - The $CLUSTER_NODE variable causes the framework to try and load a script named cluster-layout.bro which must be located somewhere in your $BROPATH. The value of the $CLUSTER_NODE variable is a count that indicates a node in the Cluster::nodes variable that is set in the cluster-layout.bro script. - The Cluster::nodes variable is a flat configuration because it's assumed that it would be automatically generated by a utility such as BroControl. This will facilitate the tiered or "deep" clustering that is coming.
74 lines
2.2 KiB
Text
74 lines
2.2 KiB
Text
##! Events which can be sent dynamically to Bro instances to retrieve
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##! information about the running process.
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module Cluster;
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export {
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## Event for requesting the value of an ID (a variable).
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global id_request: event(id: string);
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## Event for returning the value of an ID after an :bro:id:`id_request` event.
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global id_response: event(id: string, val: string);
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## Requests the current communication status.
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global peer_status_request: event();
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## Returns the current communication status.
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global peer_status_response: event(s: string);
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global net_stats_request: event();
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global net_stats_response: event(s: string);
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}
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event id_request(id: string)
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{
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local msg = fmt("%.6f got event id_request(%s)", network_time(), id);
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Log::write(CLUSTER, [$ts=network_time(), $msg=msg]);
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local val = lookup_ID(id);
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event id_response(id, fmt("%s", val));
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}
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event id_response(id: string, val: string)
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{
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local msg = fmt("%.6f raised event id_response(%s, %s)", network_time(), id, val);
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Log::write(CLUSTER, [$ts=network_time(), $peer=peer_description, $msg=msg]);
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}
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event peer_status_request()
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{
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local msg = fmt("%.6f got event peer_status_request()", network_time());
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Log::write(CLUSTER, [$ts=network_time(), $peer=peer_description, $msg=msg]);
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local status = "";
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for ( p in Communication::nodes )
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{
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local peer = Communication::nodes[p];
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if ( ! peer$connected )
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next;
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status += fmt("peer=%s host=%s events_in=? events_out=? ops_in=? ops_out=? bytes_in=? bytes_out=?\n",
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peer$peer$descr, peer$host);
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}
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event peer_status_response(status);
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}
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event peer_status_response(s: string)
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{
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local msg = fmt("%.6f raised event peer_status_response(%s)", network_time(), s);
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Log::write(CLUSTER, [$ts=network_time(), $peer=peer_description, $msg=msg]);
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}
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event net_stats_request()
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{
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local ns = net_stats();
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local reply = fmt("%.6f recvd=%d dropped=%d link=%d\n", network_time(),
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ns$pkts_recvd, ns$pkts_dropped, ns$pkts_link);
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event net_stats_response(reply);
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}
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event net_stats_response(s: string)
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{
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local msg = fmt("%.6f raised event net_stats_response(%s)", network_time(), s);
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Log::write(CLUSTER, [$ts=network_time(), $peer=peer_description, $msg=msg]);
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}
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