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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks for the response.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I will try to implement eval(filter(…)) in DRL.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I tried to change insert to insertLogical and the rule isn’t working correctly. The condition not CorrelatedEvent… is always true.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">If I set expiration to CorrelatedEvent isn’t Drools supposed to manage CorrelatedEvent’s memory consumption by itself?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> rules-users-bounces@lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org]
<b>On Behalf Of </b>Stephen Masters<br>
<b>Sent:</b> Thursday, October 24, 2013 5:49 PM<br>
<b>To:</b> Rules Users List<br>
<b>Subject:</b> Re: [rules-users] Drools memory consumption<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I haven't dug through your code in serious detail, but I did notice that you're using insert instead of insertLogical.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">That could lead to huge numbers of CorrelatedEvent instances in working memory, unless you have rules elsewhere to retract them.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">From a performance perspective, I would be very suspicious of your eval(filter(…)) condition. It looks as though it could easily be implemented in DRL.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">And we all know that "eval" is only one vowel away from "evil". ;)<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On 24 Oct 2013, at 15:03, Elran Dvir <<a href="mailto:elrand@checkpoint.com">elrand@checkpoint.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal"><br>
<br>
<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi All,</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Can someone please take a look at my drl file and say if and how I can improve its memory consumption?</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I attach my case again.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">For example, one rule is supposed to identify a port scan event.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">The basic fact is connection log. For each combination of src (source IP) and dst (destination IP) , detect a port scan event, if over 60 seconds there were at least 20 connection
logs with different service and protocol.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">The event will stay closed for 10 minute - no event will be sent during this time for this combination of src and dst. The event the connection logs’ ids (markers).<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">This is its drl file:</span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">package com.checkpoint.correlation.impl.drools.package30;<o:p></o:p></p>
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<div>
<p class="MsoNormal"> <o:p></o:p></p>
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<div>
<p class="MsoNormal">import java.util.Date<o:p></o:p></p>
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<p class="MsoNormal">import java.util.HashMap<o:p></o:p></p>
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<p class="MsoNormal">import java.util.Set<o:p></o:p></p>
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<p class="MsoNormal">import com.checkpoint.correlation.impl.drools.Log<o:p></o:p></p>
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<p class="MsoNormal">import com.checkpoint.correlation.impl.drools.CorrelatedEvent<o:p></o:p></p>
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<div>
<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">global com.checkpoint.correlation.server.EventsHandler externalEventsHandler;<o:p></o:p></p>
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<div>
<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">import function com.checkpoint.correlation.impl.utils.UserDefinedFunctions.isInDayHourRange<o:p></o:p></p>
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<p class="MsoNormal">import function com.checkpoint.correlation.impl.utils.UserDefinedFunctions.isInIpRange<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<div>
<p class="MsoNormal">function boolean filter(Log log) {<o:p></o:p></p>
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<p class="MsoNormal"> return (!((log.fieldsMap.get("src")!= null && isInIpRange(log.fieldsMap.get("src").toString(), "10.80.0.0", "10.80.255.255")) || (log.fieldsMap.get("src")!= null && isInIpRange(log.fieldsMap.get("src").toString(), "124.0.0.0",
"124.255.255.255")) || (log.fieldsMap.get("src")!= null && isInIpRange(log.fieldsMap.get("src").toString(), "192.168.0.0", "192.168.255.255")) || (log.fieldsMap.get("src")!= null && isInIpRange(log.fieldsMap.get("src").toString(), "195.158.7.0", "195.158.7.255"))
|| (log.fieldsMap.get("src")!= null && isInIpRange(log.fieldsMap.get("src").toString(), "11.25.0.0", "11.25.255.255")) || (log.fieldsMap.get("src")!= null && isInIpRange(log.fieldsMap.get("src").toString(), "128.157.0.0", "128.157.255.255")) || (log.fieldsMap.get("src")!=
null && isInIpRange(log.fieldsMap.get("src").toString(), "213.114.0.0", "213.114.255.255"))));<o:p></o:p></p>
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<p class="MsoNormal">}<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">function String markersToString(Set markersSet) {<o:p></o:p></p>
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<div>
<p class="MsoNormal"> int i = 0;<o:p></o:p></p>
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<p class="MsoNormal"> String markersString = "";<o:p></o:p></p>
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<p class="MsoNormal"> for (Object marker : markersSet) {<o:p></o:p></p>
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<p class="MsoNormal"> if (i == 25) break;<o:p></o:p></p>
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<p class="MsoNormal"> String markerStr = marker.toString();<o:p></o:p></p>
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<p class="MsoNormal"> if (i > 0) markersString += "\n";<o:p></o:p></p>
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<p class="MsoNormal"> markersString += markerStr;<o:p></o:p></p>
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<p class="MsoNormal"> }<o:p></o:p></p>
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<p class="MsoNormal"> return markersString;<o:p></o:p></p>
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<p class="MsoNormal">}<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">function String calcSeverity(Log log) {<o:p></o:p></p>
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<p class="MsoNormal"> return "High";<o:p></o:p></p>
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<p class="MsoNormal">}<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">function String getUniqueId(Log log) {<o:p></o:p></p>
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<p class="MsoNormal"> String uniqueId="";<o:p></o:p></p>
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<p class="MsoNormal"> uniqueId += (log.fieldsMap.get("service") != null ? log.fieldsMap.get("service").toString() : "null");<o:p></o:p></p>
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<p class="MsoNormal"> uniqueId += (log.fieldsMap.get("proto") != null ? log.fieldsMap.get("proto").toString() : "null");<o:p></o:p></p>
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<p class="MsoNormal"> return uniqueId;<o:p></o:p></p>
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<p class="MsoNormal">}<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">declare Log<o:p></o:p></p>
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<p class="MsoNormal"> @role(event)<o:p></o:p></p>
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<p class="MsoNormal">end<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">declare CorrelatedEvent<o:p></o:p></p>
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<p class="MsoNormal"> @role(event)<o:p></o:p></p>
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<p class="MsoNormal"> @expires(600s)<o:p></o:p></p>
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<p class="MsoNormal">end<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">rule "Port scan from external network"<o:p></o:p></p>
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<p class="MsoNormal">enabled true<o:p></o:p></p>
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<p class="MsoNormal">dialect "java"<o:p></o:p></p>
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<p class="MsoNormal">no-loop<o:p></o:p></p>
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<p class="MsoNormal">when<o:p></o:p></p>
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<p class="MsoNormal"> $log : Log(eval(filter($log)))<o:p></o:p></p>
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<p class="MsoNormal"> not CorrelatedEvent(getId() == "{8AC52BA8-1EE8-4f18-9BB4-54492116501C}", groupByFieldsMap.get("src") == $log.fieldsMap.get("src"), groupByFieldsMap.get("dst") == $log.fieldsMap.get("dst"))<o:p></o:p></p>
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<p class="MsoNormal"> accumulate($accumulatedLog : Log(eval(filter($accumulatedLog)), this after[0s,60s] $log, fieldsMap.get("src") == $log.fieldsMap.get("src"), fieldsMap.get("dst") == $log.fieldsMap.get("dst"), $id : getUniqueId(this));<o:p></o:p></p>
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<p class="MsoNormal"> $idSet : collectSet($id);<o:p></o:p></p>
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<p class="MsoNormal"> $idSet.size > 19)<o:p></o:p></p>
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<p class="MsoNormal"> accumulate($accumulatedLog : Log(eval(filter($accumulatedLog)), this after[0s,60s] $log, fieldsMap.get("src") == $log.fieldsMap.get("src"), fieldsMap.get("dst") == $log.fieldsMap.get("dst"), $idSet.contains(getUniqueId(this)),
$marker : fieldsMap.get("marker"));<o:p></o:p></p>
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<p class="MsoNormal"> $markerSet : collectSet($marker))<o:p></o:p></p>
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<p class="MsoNormal"> then<o:p></o:p></p>
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<p class="MsoNormal"> CorrelatedEvent $ce = new CorrelatedEvent("{8AC52BA8-1EE8-4f18-9BB4-54492116501C}");<o:p></o:p></p>
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<p class="MsoNormal"> $ce.groupByFieldsMap.put("src", $log.fieldsMap.get("src"));<o:p></o:p></p>
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<p class="MsoNormal"> $ce.groupByFieldsMap.put("dst", $log.fieldsMap.get("dst"));<o:p></o:p></p>
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<p class="MsoNormal"> insert($ce);<o:p></o:p></p>
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<p class="MsoNormal"> HashMap<String,Object> fieldsMap = new HashMap<String,Object>();<o:p></o:p></p>
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<div>
<p class="MsoNormal"> fieldsMap.put("cu_rule_id", "{8AC52BA8-1EE8-4f18-9BB4-54492116501C}");<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> fieldsMap.put("event_name", "Port scan from external network");<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> fieldsMap.put("cu_rule_severity", calcSeverity($log));<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> fieldsMap.put("cu_rule_category", "Scans");<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> fieldsMap.put("cu_log_count", $markerSet.size());<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> fieldsMap.put("time", new Date());<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> fieldsMap.put("cu_markers_list", markersToString($markerSet));<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> fieldsMap.put("src", $log.fieldsMap.get("src"));<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> fieldsMap.put("src_machine_name", $log.fieldsMap.get("src_machine_name"));<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> fieldsMap.put("src_user_name", $log.fieldsMap.get("src_user_name"));<o:p></o:p></p>
</div>
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<p class="MsoNormal"> fieldsMap.put("dst", $log.fieldsMap.get("dst"));<o:p></o:p></p>
</div>
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<p class="MsoNormal"> fieldsMap.put("dst_machine_name", $log.fieldsMap.get("dst_machine_name"));<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> fieldsMap.put("dst_user_name", $log.fieldsMap.get("dst_user_name"));<o:p></o:p></p>
</div>
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<p class="MsoNormal"> fieldsMap.put("service", $log.fieldsMap.get("service"));<o:p></o:p></p>
</div>
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<p class="MsoNormal"> fieldsMap.put("proto", $log.fieldsMap.get("proto"));<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> fieldsMap.put("product", $log.fieldsMap.get("product"));<o:p></o:p></p>
</div>
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<p class="MsoNormal"> externalEventsHandler.handleEvent(fieldsMap);<o:p></o:p></p>
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<p class="MsoNormal">end <o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks.</span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span class="apple-converted-space"><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> </span></span><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Elran
Dvir<span class="apple-converted-space"> </span><br>
<b>Sent:</b><span class="apple-converted-space"> </span>Thursday, October 24, 2013 11:23 AM<br>
<b>To:</b><span class="apple-converted-space"> </span>Rules Users List<br>
<b>Subject:</b><span class="apple-converted-space"> </span>RE: [rules-users] Drools memory consumption</span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I am using 5.5.0.Final.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span class="apple-converted-space"><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> </span></span><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""><a href="mailto:rules-users-bounces@lists.jboss.org"><span style="color:purple">rules-users-bounces@lists.jboss.org</span></a><span class="apple-converted-space"> </span>[mailto:rules-<a href="mailto:users-bounces@lists.jboss.org"><span style="color:purple">users-bounces@lists.jboss.org</span></a>]<span class="apple-converted-space"> </span><b>On
Behalf Of<span class="apple-converted-space"> </span></b>Geoffrey De Smet<br>
<b>Sent:</b><span class="apple-converted-space"> </span>Thursday, October 24, 2013 10:46 AM<br>
<b>To:</b><span class="apple-converted-space"> </span>Rules Users List<br>
<b>Subject:</b><span class="apple-converted-space"> </span>Re: [rules-users] Drools memory consumption</span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">Which version of drools?<br>
Memory consumption improved a lot in 5.2 or 5.3 IIRC.<o:p></o:p></p>
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<p class="MsoNormal">On 24-10-13 09:14, Elran Dvir wrote:<o:p></o:p></p>
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<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks for the quick response.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I don’t use entrypoints or windows in my rules.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I am using temporal constraints.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I can’t retract the Log facts because I don’t know whether other rules need them.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Maybe It’s because there is no expiration set for Log. But I am not sure if I can.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">(CorrelatedEvent has multiple expirations defined over the drl files)</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I wrote this question two days ago and no one responded:</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal">I have several drl files.<o:p></o:p></p>
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<p class="MsoNormal">Each drl file contains one rule.<o:p></o:p></p>
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<p class="MsoNormal">Each drl file is built to a knowledge package.<o:p></o:p></p>
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<p class="MsoNormal">Each drl file contains declaration of the same fact (referencing to a imported class defined outside of the drl). The fact’s role is of course event.<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">Can I define different expiration (@expires) for the fact in each drl?<o:p></o:p></p>
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<p class="MsoNormal">Is expiration relevant only to the same drl?<o:p></o:p></p>
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<p class="MsoNormal">Is the answer different if the fact is created in the rule’s RHS (CorrelatedEvent) or if it inserted to the session’s working memory outside of the drl (Log)?<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span class="apple-converted-space"><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> </span></span><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""><a href="mailto:rules-users-bounces@lists.jboss.org"><span style="color:purple">rules-users-bounces@lists.jboss.org</span></a><span class="apple-converted-space"> </span>[<a href="mailto:rules-users-bounces@lists.jboss.org"><span style="color:purple">mailto:rules-users-bounces@lists.jboss.org</span></a>]<span class="apple-converted-space"> </span><b>On
Behalf Of<span class="apple-converted-space"> </span></b>Matteo Cusmai<br>
<b>Sent:</b><span class="apple-converted-space"> </span>Thursday, October 24, 2013 9:32 AM<br>
<b>To:</b><span class="apple-converted-space"> </span>Rules Users List<br>
<b>Subject:</b><span class="apple-converted-space"> </span>Re: [rules-users] Drools memory consumption</span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p>Are you using any entrypoint?<br>
Time or length based?<br>
It could be possible you have to retract manually the events.<o:p></o:p></p>
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<p class="MsoNormal">On 24 Oct 2013 08:23, "Elran Dvir" <<a href="mailto:elrand@checkpoint.com"><span style="color:purple">elrand@checkpoint.com</span></a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal"><span style="color:#1F497D">I am sending this message again because maybe the last wasn’t sent because of the attached snapshots.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:#1F497D">I removed them now.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:#1F497D">Thanks.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal">Hi all,<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">I am using Drools Fusion. I am getting OutOfMemoryError rather fast. My JVM is running with –Xmx4g flag.<o:p></o:p></p>
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<p class="MsoNormal">I have rules defined in another (not Drools) language.<o:p></o:p></p>
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<p class="MsoNormal">Every rule is translated programmatically to a drl file. This is because the user can add and remove rules (in the other language) dynamically.<o:p></o:p></p>
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<p class="MsoNormal">The default configuration contains 125 rules.<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">For example, one rule is supposed to identify a port scan event.<o:p></o:p></p>
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<p>The basic fact is connection log. For each combination of src (source IP) and dst (destination IP) , detect a port scan event, if over 60 seconds there were at least 20 connection logs with different service and protocol.<o:p></o:p></p>
<p>The event will stay closed for 10 minute - no event will be sent during this time for this combination of src and dst. The event the connection logs’ ids (markers).<o:p></o:p></p>
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<p class="MsoNormal">(other rules are very similar in structure, but different in logic, of course)<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">This is its programmatic drl file:<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">package com.checkpoint.correlation.impl.drools.package30;<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">import java.util.Date<o:p></o:p></p>
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<p class="MsoNormal">import java.util.HashMap<o:p></o:p></p>
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<p class="MsoNormal">import java.util.Set<o:p></o:p></p>
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<p class="MsoNormal">import com.checkpoint.correlation.impl.drools.Log<o:p></o:p></p>
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<p class="MsoNormal">import com.checkpoint.correlation.impl.drools.CorrelatedEvent<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">global com.checkpoint.correlation.server.EventsHandler externalEventsHandler;<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">import function com.checkpoint.correlation.impl.utils.UserDefinedFunctions.isInDayHourRange<o:p></o:p></p>
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<p class="MsoNormal">import function com.checkpoint.correlation.impl.utils.UserDefinedFunctions.isInIpRange<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">function boolean filter(Log log) {<o:p></o:p></p>
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<p class="MsoNormal"> return (!((log.fieldsMap.get("src")!= null && isInIpRange(log.fieldsMap.get("src").toString(), "10.80.0.0", "10.80.255.255")) || (log.fieldsMap.get("src")!= null && isInIpRange(log.fieldsMap.get("src").toString(), "124.0.0.0",
"124.255.255.255")) || (log.fieldsMap.get("src")!= null && isInIpRange(log.fieldsMap.get("src").toString(), "192.168.0.0", "192.168.255.255")) || (log.fieldsMap.get("src")!= null && isInIpRange(log.fieldsMap.get("src").toString(), "195.158.7.0", "195.158.7.255"))
|| (log.fieldsMap.get("src")!= null && isInIpRange(log.fieldsMap.get("src").toString(), "11.25.0.0", "11.25.255.255")) || (log.fieldsMap.get("src")!= null && isInIpRange(log.fieldsMap.get("src").toString(), "128.157.0.0", "128.157.255.255")) || (log.fieldsMap.get("src")!=
null && isInIpRange(log.fieldsMap.get("src").toString(), "213.114.0.0", "213.114.255.255"))));<o:p></o:p></p>
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<p class="MsoNormal">}<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">function String markersToString(Set markersSet) {<o:p></o:p></p>
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<p class="MsoNormal"> int i = 0;<o:p></o:p></p>
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<p class="MsoNormal"> String markersString = "";<o:p></o:p></p>
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<p class="MsoNormal"> for (Object marker : markersSet) {<o:p></o:p></p>
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<p class="MsoNormal"> if (i == 25) break;<o:p></o:p></p>
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<p class="MsoNormal"> String markerStr = marker.toString();<o:p></o:p></p>
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<p class="MsoNormal"> if (i > 0) markersString += "\n";<o:p></o:p></p>
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<p class="MsoNormal"> markersString += markerStr;<o:p></o:p></p>
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<p class="MsoNormal"> }<o:p></o:p></p>
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<p class="MsoNormal"> return markersString;<o:p></o:p></p>
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<p class="MsoNormal">}<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">function String calcSeverity(Log log) {<o:p></o:p></p>
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<p class="MsoNormal"> return "High";<o:p></o:p></p>
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<p class="MsoNormal">}<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">function String getUniqueId(Log log) {<o:p></o:p></p>
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<p class="MsoNormal"> String uniqueId="";<o:p></o:p></p>
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<p class="MsoNormal"> uniqueId += (log.fieldsMap.get("service") != null ? log.fieldsMap.get("service").toString() : "null");<o:p></o:p></p>
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<p class="MsoNormal"> uniqueId += (log.fieldsMap.get("proto") != null ? log.fieldsMap.get("proto").toString() : "null");<o:p></o:p></p>
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<p class="MsoNormal"> return uniqueId;<o:p></o:p></p>
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<p class="MsoNormal">}<o:p></o:p></p>
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<p class="MsoNormal"> &n! bsp; <o:p></o:p></p>
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<p class="MsoNormal">declare Log<o:p></o:p></p>
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<p class="MsoNormal"> @role(event)<o:p></o:p></p>
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<p class="MsoNormal">end<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">declare CorrelatedEvent<o:p></o:p></p>
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<p class="MsoNormal"> @role(event)<o:p></o:p></p>
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<p class="MsoNormal"> @expires(600s)<o:p></o:p></p>
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<p class="MsoNormal">end<o:p></o:p></p>
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<div>
<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">rule "Port scan from external network"<o:p></o:p></p>
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<p class="MsoNormal">enabled true<o:p></o:p></p>
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<p class="MsoNormal">dialect "java"<o:p></o:p></p>
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<p class="MsoNormal">no-loop<o:p></o:p></p>
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<p class="MsoNormal">when<o:p></o:p></p>
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<p class="MsoNormal"> $log : Log(eval(filter($log)))<o:p></o:p></p>
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<p class="MsoNormal"> not CorrelatedEvent(getId() == "{8AC52BA8-1EE8-4f18-9BB4-54492116501C}", groupByFieldsMap.get("src") == $log.fieldsMap.get("src"), groupByFieldsMap.get("dst") == $log.fieldsMap.get("dst"))<o:p></o:p></p>
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<p class="MsoNormal"> accumulate($accumulatedLog : Log(eval(filter($accumulatedLog)), this after[0s,60s] $log, fieldsMap.get("src") == $log.fieldsMap.get("src"), fieldsMap.get("dst") == $log.fieldsMap.get("dst"), $id : getUniqueId(this));<o:p></o:p></p>
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<p class="MsoNormal"> $idSet : collectSet($id);<o:p></o:p></p>
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<p class="MsoNormal"> $idSet.size > 19)<o:p></o:p></p>
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<p class="MsoNormal"> accumulate($accumulatedLog : Log(eval(filter($accumulatedLog)), this after[0s,60s] $log, fieldsMap.get("src") == $log.fieldsMap.get("src"), fieldsMap.get("dst") == $log.fieldsMap.get("dst"), $idSet.contains(getUniqueId(this)),
$marker : fieldsMap.get("marker"));<o:p></o:p></p>
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<p class="MsoNormal"> $markerSet : collectSet($marker))<o:p></o:p></p>
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<p class="MsoNormal"> then<o:p></o:p></p>
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<div>
<p class="MsoNormal"> CorrelatedEvent $ce = new CorrelatedEvent("{8AC52BA8-1EE8-4f18-9BB4-54492116501C}");<o:p></o:p></p>
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<p class="MsoNormal"> $ce.groupByFieldsMap.put("src", $log.fieldsMap.get("src"));<o:p></o:p></p>
</div>
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<p class="MsoNormal"> $ce.groupByFieldsMap.put("dst", $log.fieldsMap.get("dst"));<o:p></o:p></p>
</div>
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<p class="MsoNormal"> insert($ce);<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> HashMap<String,Object> fieldsMap = new HashMap<String,Object>();<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> fieldsMap.put("cu_rule_id", "{8AC52BA8-1EE8-4f18-9BB4-54492116501C}");<o:p></o:p></p>
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<div>
<p class="MsoNormal"> fieldsMap.put("event_name", "Port scan from external network");<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> fieldsMap.put("cu_rule_severity", calcSeverity($log));<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> fieldsMap.put("cu_rule_category", "Scans");<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> fieldsMap.put("cu_log_count", $markerSet.size());<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> fieldsMap.put("time", new Date());<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> fieldsMap.put("cu_markers_list", markersToString($markerSet));<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> fieldsMap.put("src", $log.fieldsMap.get("src"));<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> fieldsMap.put("src_machine_name", $log.fieldsMap.get("src_machine_name"));<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> fieldsMap.put("src_user_name", $log.fieldsMap.get("src_user_name"));<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> fieldsMap.put("dst", $log.fieldsMap.get("dst"));<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> fieldsMap.put("dst_machine_name", $log.fieldsMap.get("dst_machine_name"));<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> fieldsMap.put("dst_user_name", $log.fieldsMap.get("dst_user_name"));<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> fieldsMap.put("service", $log.fieldsMap.get("service"));<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> fieldsMap.put("proto", $log.fieldsMap.get("proto"));<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> fieldsMap.put("product", $log.fieldsMap.get("product"));<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> externalEventsHandler.handleEvent(fieldsMap);<o:p></o:p></p>
</div>
<div style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 1.0pt 0in">
<div>
<p class="MsoNormal">end <o:p></o:p></p>
</div>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">I am sending logs in a rate of up to 200 logs/sec. After about 3 minutes, my application starts to be unresponsive.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">I monitored the JVM with VisualVM. Two snapshots of VisualVM are attached.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">I found out that the class consuming most memory is FromNodeLeftTuple of drools (as can be seen in “instances.png”).<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<p>1)<span style="font-size:7.0pt"> <span class="apple-converted-space"> </span></span>Is my inserting rate is too high?<o:p></o:p></p>
<p>2)<span style="font-size:7.0pt"> <span class="apple-converted-space"> </span></span>Is There a way I can make my rules more memory efficient?<o:p></o:p></p>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Thanks.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 1.0pt 0in">
<div>
<p class="MsoNormal">Inserting logs:<o:p></o:p></p>
</div>
</div>
<div>
<p class="MsoNormal">public void insertEvents(Collection<Map<String, Object>> logs)<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">{<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> for (Map<String, Object> map : logs) {<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> Log log = new Log();<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> Log.fieldsMap.putAll(map);<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> session.insert(log);<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> session.fireAllRules();<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> }<o:p></o:p></p>
</div>
<div style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 1.0pt 0in">
<div>
<p class="MsoNormal">}<o:p></o:p></p>
</div>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 1.0pt 0in">
<div>
<p class="MsoNormal">Log class:<o:p></o:p></p>
</div>
</div>
<div>
<p class="MsoNormal">public class Log<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">{<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> public HashMap<String, Object> fieldsMap = new HashMap<>();<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">}<o:p></o:p></p>
</div>
<div style="border-top:solid windowtext 1.0pt;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:none;padding:1.0pt 0in 1.0pt 0in">
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">CorrelatedEvent class:<o:p></o:p></p>
</div>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">public class CorrelatedEvent<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">{<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> public Map<String, Object> groupByFieldsMap;<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> private String id;<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> public CorrelatedEvent(String id)<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> {<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> groupByFieldsMap = new HashMap<>();<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> <span class="apple-converted-space"> </span><a href="http://this.id" target="_blank"><span style="color:purple">this.id</span></a><span class="apple-converted-space"> </span>= id;<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> }<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> public String getId()<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> {<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> return id;<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> }<o:p></o:p></p>
</div>
<div style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 1.0pt 0in">
<div>
<p class="MsoNormal">}<o:p></o:p></p>
</div>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
</div>
<div>
<p class="MsoNormal"><br>
_______________________________________________<br>
rules-users mailing list<br>
<a href="mailto:rules-users@lists.jboss.org"><span style="color:purple">rules-users@lists.jboss.org</span></a><br>
<a href="https://lists.jboss.org/mailman/listinfo/rules-users" target="_blank"><span style="color:purple">https://lists.jboss.org/mailman/listinfo/rules-users</span></a><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
<br>
Email secured by Check Point<o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
<br>
<br>
<o:p></o:p></p>
<pre>_______________________________________________<o:p></o:p></pre>
<pre>rules-users mailing list<o:p></o:p></pre>
<pre><a href="mailto:rules-users@lists.jboss.org"><span style="color:purple">rules-users@lists.jboss.org</span></a><o:p></o:p></pre>
<pre><a href="https://lists.jboss.org/mailman/listinfo/rules-users"><span style="color:purple">https://lists.jboss.org/mailman/listinfo/rules-users</span></a><o:p></o:p></pre>
</blockquote>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<p class="MsoNormal"><span style="font-size:13.5pt;font-family:"Helvetica","sans-serif"">_______________________________________________<br>
rules-users mailing list<br>
<a href="mailto:rules-users@lists.jboss.org"><span style="color:purple">rules-users@lists.jboss.org</span></a><br>
<a href="https://lists.jboss.org/mailman/listinfo/rules-users"><span style="color:purple">https://lists.jboss.org/mailman/listinfo/rules-users</span></a><o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
<br>
<br>
Email secured by Check Point <o:p></o:p></p>
</div>
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