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yacy_search_server/htroot/PerformanceQueues_p.java
Michael Peter Christen 765943a4b7 Redesign of crawler identification and robots steering. A non-p2p user 
in intranets and the internet can now choose to appear as Googlebot.
This is an essential necessity to be able to compete in the field of
commercial search appliances, since most web pages are these days
optimized only for Google and no other search platform any more. All
commercial search engine providers have a built-in fake-Google User
Agent to be able to get the same search index as Google can do. Without
the resistance against obeying to robots.txt in this case, no
competition is possible any more. YaCy will always obey the robots.txt
when it is used for crawling the web in a peer-to-peer network, but to
establish a Search Appliance (like a Google Search Appliance, GSA) it is
necessary to be able to behave exactly like a Google crawler.
With this change, you will be able to switch the user agent when portal
or intranet mode is selected on per-crawl-start basis. Every crawl start
can have a different user agent.
2013-08-22 14:23:47 +02:00

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//PerformaceQueues_p.java
//-----------------------
//part of YaCy
//(C) by Michael Peter Christen; mc@yacy.net
//first published on http://www.anomic.de
//Frankfurt, Germany, 2004, 2005
//last major change: 16.02.2005
//
//This program is free software; you can redistribute it and/or modify
//it under the terms of the GNU General Public License as published by
//the Free Software Foundation; either version 2 of the License, or
//(at your option) any later version.
//
//This program is distributed in the hope that it will be useful,
//but WITHOUT ANY WARRANTY; without even the implied warranty of
//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
//GNU General Public License for more details.
//
//You should have received a copy of the GNU General Public License
//along with this program; if not, write to the Free Software
//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//You must compile this file with
//javac -classpath .:../classes Network.java
//if the shell's current path is HTROOT
import java.io.File;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import net.yacy.cora.protocol.HeaderFramework;
import net.yacy.cora.protocol.RequestHeader;
import net.yacy.kelondro.data.word.WordReference;
import net.yacy.kelondro.rwi.IndexCell;
import net.yacy.kelondro.util.FileUtils;
import net.yacy.kelondro.util.Formatter;
import net.yacy.kelondro.util.MemoryControl;
import net.yacy.kelondro.util.OS;
import net.yacy.kelondro.workflow.BusyThread;
import net.yacy.kelondro.workflow.WorkflowThread;
import net.yacy.search.Switchboard;
import net.yacy.search.SwitchboardConstants;
import net.yacy.search.index.Segment;
import net.yacy.server.serverCore;
import net.yacy.server.serverObjects;
import net.yacy.server.serverSwitch;
public class PerformanceQueues_p {
/**
* list of pre-defined settings: filename -> description
*/
private final static Map<String, String> performanceProfiles = new HashMap<String, String>(4, 0.9f);
static {
// no sorted output!
performanceProfiles.put("defaults/yacy.init", "default (crawl)");
performanceProfiles.put("defaults/performance_dht.profile", "prefer DHT");
}
public static serverObjects respond(final RequestHeader header, final serverObjects post, final serverSwitch env) {
// return variable that accumulates replacements
final Switchboard sb = (Switchboard) env;
final serverObjects prop = new serverObjects();
File defaultSettingsFile = new File(sb.getAppPath(), "defaults/yacy.init");
// get segment
Segment indexSegment = sb.index;
if(post != null) {
if(post.containsKey("defaultFile")){
// TODO check file-path!
final File value = new File(sb.getAppPath(), post.get("defaultFile", "defaults/yacy.init"));
// check if value is readable file
if(value.exists() && value.isFile() && value.canRead()) {
defaultSettingsFile = value;
}
}
if (post.containsKey("Xmx")) {
int xmx = post.getInt("Xmx", 600); // default maximum heap size
if (OS.isWin32) xmx = Math.min(2000, xmx);
int xms = xmx; //Math.min(xmx, Math.max(90, xmx / 10));
sb.setConfig("javastart_Xmx", "Xmx" + xmx + "m");
sb.setConfig("javastart_Xms", "Xms" + xms + "m");
prop.put("setStartupCommit", "1");
}
if(post.containsKey("diskFree")) {
sb.setConfig(SwitchboardConstants.DISK_FREE, post.getInt("diskFree", 3000));
}
if(post.containsKey("diskFreeHardlimit")) {
sb.setConfig(SwitchboardConstants.DISK_FREE_HARDLIMIT, post.getInt("diskFreeHardlimit", 1000));
}
if(post.containsKey("memoryAcceptDHT")) {
sb.setConfig(SwitchboardConstants.MEMORY_ACCEPTDHT, post.getInt("memoryAcceptDHT", 50));
}
if(post.containsKey("resetObserver")) {
MemoryControl.resetProperState();
}
}
final Map<String, String> defaultSettings = ((post == null) || (!(post.containsKey("submitdefault")))) ? null : FileUtils.loadMap(defaultSettingsFile);
Iterator<String> threads = sb.threadNames();
String threadName;
BusyThread thread;
final boolean xml = (header.get(HeaderFramework.CONNECTION_PROP_PATH)).endsWith(".xml");
prop.setLocalized(!xml);
// calculate totals
long blocktime_total = 0, sleeptime_total = 0, exectime_total = 0;
while (threads.hasNext()) {
threadName = threads.next();
thread = sb.getThread(threadName);
blocktime_total += thread.getBlockTime();
sleeptime_total += thread.getSleepTime();
exectime_total += thread.getExecTime();
}
if (blocktime_total == 0) blocktime_total = 1;
if (sleeptime_total == 0) sleeptime_total = 1;
if (exectime_total == 0) exectime_total = 1;
// set templates for latest news from the threads
long blocktime, sleeptime, exectime;
long idlesleep, busysleep, memuse, memprereq;
int queuesize;
threads = sb.threadNames();
int c = 0;
long idleCycles, busyCycles, memshortageCycles;
// set profile?
final double multiplier = (post != null) && post.containsKey("profileSpeed") ? 100.0 / post.getFloat("profileSpeed", 100.0f) : 1.0;
final boolean setProfile = (post != null && post.containsKey("submitdefault"));
final boolean setDelay = (post != null) && (post.containsKey("submitdelay"));
// save used settings file to config
if (setProfile && post != null){
sb.setConfig("performanceProfile", post.get("defaultFile", "defaults/yacy.init"));
sb.setConfig("performanceSpeed", post.getInt("profileSpeed", 100));
}
IndexCell<WordReference> rwi = indexSegment.termIndex();
while (threads.hasNext()) {
threadName = threads.next();
thread = sb.getThread(threadName);
// set values to templates
prop.put("table_" + c + "_threadname", threadName);
prop.putHTML("table_" + c + "_hasurl_shortdescr", thread.getShortDescription());
if(thread.getMonitorURL() == null) {
prop.put("table_"+c+"_hasurl", "0");
}else{
prop.put("table_"+c+"_hasurl", "1");
prop.put("table_" + c + "_hasurl_url", thread.getMonitorURL());
}
prop.putHTML("table_" + c + "_longdescr", thread.getLongDescription());
queuesize = thread.getJobCount();
prop.put("table_" + c + "_queuesize", (queuesize == Integer.MAX_VALUE) ? "unlimited" : Formatter.number(queuesize, !xml));
blocktime = thread.getBlockTime();
sleeptime = thread.getSleepTime();
exectime = thread.getExecTime();
memuse = thread.getMemoryUse();
idleCycles = thread.getIdleCycles();
busyCycles = thread.getBusyCycles();
memshortageCycles = thread.getOutOfMemoryCycles();
prop.putNum("table_" + c + "_blocktime", blocktime / 1000);
prop.putNum("table_" + c + "_blockpercent", 100 * blocktime / blocktime_total);
prop.putNum("table_" + c + "_sleeptime", sleeptime / 1000);
prop.putNum("table_" + c + "_sleeppercent", 100 * sleeptime / sleeptime_total);
prop.putNum("table_" + c + "_exectime", exectime / 1000);
prop.putNum("table_" + c + "_execpercent", 100 * exectime / exectime_total);
prop.putNum("table_" + c + "_totalcycles", idleCycles + busyCycles + memshortageCycles);
prop.putNum("table_" + c + "_idlecycles", idleCycles);
prop.putNum("table_" + c + "_busycycles", busyCycles);
prop.putNum("table_" + c + "_memscycles", memshortageCycles);
prop.putNum("table_" + c + "_sleeppercycle", ((idleCycles + busyCycles) == 0) ? -1 : sleeptime / (idleCycles + busyCycles));
prop.putNum("table_" + c + "_execpercycle", (busyCycles == 0) ? -1 : exectime / busyCycles);
prop.putNum("table_" + c + "_memusepercycle", (busyCycles == 0) ? -1 : memuse / busyCycles / 1024);
// load with old values
idlesleep = sb.getConfigLong(threadName + "_idlesleep" , 1000);
busysleep = sb.getConfigLong(threadName + "_busysleep", 100);
memprereq = sb.getConfigLong(threadName + "_memprereq", 0);
if (setDelay && post != null) {
// load with new values
idlesleep = post.getLong(threadName + "_idlesleep", idlesleep);
busysleep = post.getLong(threadName + "_busysleep", busysleep);
memprereq = post.getLong(threadName + "_memprereq", memprereq) * 1024l;
if (memprereq == 0) memprereq = sb.getConfigLong(threadName + "_memprereq", 0);
// check values to prevent short-cut loops
if (idlesleep < 1000) idlesleep = 1000;
if (threadName.equals("10_httpd")) { idlesleep = 0; busysleep = 0; memprereq = 0; }
sb.setThreadPerformance(threadName, idlesleep, busysleep, memprereq);
idlesleep = sb.getConfigLong(threadName + "_idlesleep", idlesleep);
busysleep = sb.getConfigLong(threadName + "_busysleep", busysleep);
}
if (setProfile) {
if (threadName.equals(SwitchboardConstants.PEER_PING) ||
threadName.equals(SwitchboardConstants.SEED_UPLOAD) ||
threadName.equals(SwitchboardConstants.CLEANUP)) {
/* do not change any values */
} else {
// load with new values
idlesleep = (long) (Long.parseLong(d(defaultSettings.get(threadName + "_idlesleep"), String.valueOf(idlesleep))) * multiplier);
busysleep = (long) (Long.parseLong(d(defaultSettings.get(threadName + "_busysleep"), String.valueOf(busysleep))) * multiplier);
//memprereq = (long) (Long.parseLong(d(defaultSettings.get(threadName + "_memprereq"), String.valueOf(memprereq))) * multiplier);
// check values to prevent short-cut loops
if (idlesleep < 1000) idlesleep = 1000;
if (threadName.equals("10_httpd")) { idlesleep = 0; busysleep = 0; memprereq = 0; }
//if (threadName.equals(plasmaSwitchboardConstants.CRAWLJOB_LOCAL_CRAWL) && (busysleep < 50)) busysleep = 50;
sb.setThreadPerformance(threadName, idlesleep, busysleep, memprereq);
}
}
prop.put("table_" + c + "_idlesleep", idlesleep);
prop.put("table_" + c + "_busysleep", busysleep);
prop.put("table_" + c + "_memprereq", memprereq / 1024);
// disallow setting of memprereq for indexer to prevent db from throwing OOMs
// prop.put("table_" + c + "_disabled", /*(threadName.endsWith("_indexing")) ? 1 :*/ "0");
prop.put("table_" + c + "_disabled", threadName.equals("10_httpd") ? "1" : "0" ); // httpd hardcoded defaults
prop.put("table_" + c + "_recommendation", threadName.endsWith("_indexing") ? "1" : "0");
prop.putNum("table_" + c + "_recommendation_value", rwi == null ? 0 : threadName.endsWith("_indexing") ? (rwi.minMem() / 1024) : 0);
c++;
}
prop.put("table", c);
// performance profiles
c = 0;
final String usedfile = sb.getConfig("performanceProfile", "defaults/yacy.init");
for(final String filename: performanceProfiles.keySet()) {
prop.put("profile_" + c + "_filename", filename);
prop.put("profile_" + c + "_description", performanceProfiles.get(filename));
prop.put("profile_" + c + "_used", usedfile.equalsIgnoreCase(filename) ? "1" : "0");
c++;
}
prop.put("profile", c);
c = 0;
final int[] speedValues = {200,150,100,50,25,10};
final int usedspeed = sb.getConfigInt("performanceSpeed", 100);
for(final int speed: speedValues){
prop.put("speed_" + c + "_value", speed);
prop.put("speed_" + c + "_label", speed + " %");
prop.put("speed_" + c + "_used", (speed == usedspeed) ? "1" : "0");
c++;
}
prop.put("speed", c);
if ((post != null) && (post.containsKey("cacheSizeSubmit"))) {
final int wordCacheMaxCount = post.getInt("wordCacheMaxCount", 20000);
sb.setConfig(SwitchboardConstants.WORDCACHE_MAX_COUNT, Integer.toString(wordCacheMaxCount));
if (rwi != null) rwi.setBufferMaxWordCount(wordCacheMaxCount);
}
if ((post != null) && (post.containsKey("poolConfig"))) {
/*
* configuring the crawler pool
*/
// get the current crawler pool configuration
int maxBusy = post.getInt("Crawler Pool_maxActive", 8);
// storing the new values into configfile
sb.setConfig(SwitchboardConstants.CRAWLER_THREADS_ACTIVE_MAX,maxBusy);
//switchboard.setConfig("crawler.MinIdleThreads",minIdle);
/*
* configuring the http pool
*/
final WorkflowThread httpd = sb.getThread("10_httpd");
try {
maxBusy = post.getInt("httpd Session Pool_maxActive", 8);
} catch (final NumberFormatException e) {
maxBusy = 8;
}
((serverCore)httpd).setMaxSessionCount(maxBusy);
// storing the new values into configfile
sb.setConfig("httpdMaxBusySessions",maxBusy);
}
if ((post != null) && (post.containsKey("PrioritySubmit"))) {
sb.setConfig("javastart_priority",post.get("YaCyPriority","0"));
}
if ((post != null) && (post.containsKey("onlineCautionSubmit"))) {
sb.setConfig(SwitchboardConstants.PROXY_ONLINE_CAUTION_DELAY, Integer.toString(post.getInt("crawlPauseProxy", 30000)));
sb.setConfig(SwitchboardConstants.LOCALSEACH_ONLINE_CAUTION_DELAY, Integer.toString(post.getInt("crawlPauseLocalsearch", 30000)));
sb.setConfig(SwitchboardConstants.REMOTESEARCH_ONLINE_CAUTION_DELAY, Integer.toString(post.getInt("crawlPauseRemotesearch", 30000)));
}
// table cache settings
prop.putNum("wordCacheSize", indexSegment.RWIBufferCount());
prop.putNum("wordCacheSizeKBytes", rwi == null ? 0 : rwi.getBufferSizeBytes()/1024);
prop.putNum("maxURLinCache", rwi == null ? 0 : rwi.getBufferMaxReferences());
prop.putNum("maxAgeOfCache", rwi == null ? 0 : rwi.getBufferMaxAge() / 1000 / 60); // minutes
prop.putNum("minAgeOfCache", rwi == null ? 0 : rwi.getBufferMinAge() / 1000 / 60); // minutes
prop.putNum("maxWaitingWordFlush", sb.getConfigLong("maxWaitingWordFlush", 180));
prop.put("wordCacheMaxCount", sb.getConfigLong(SwitchboardConstants.WORDCACHE_MAX_COUNT, 20000));
prop.put("crawlPauseProxy", sb.getConfigLong(SwitchboardConstants.PROXY_ONLINE_CAUTION_DELAY, 30000));
prop.put("crawlPauseLocalsearch", sb.getConfigLong(SwitchboardConstants.LOCALSEACH_ONLINE_CAUTION_DELAY, 30000));
prop.put("crawlPauseRemotesearch", sb.getConfigLong(SwitchboardConstants.REMOTESEARCH_ONLINE_CAUTION_DELAY, 30000));
prop.putNum("crawlPauseProxyCurrent", (System.currentTimeMillis() - sb.proxyLastAccess) / 1000);
prop.putNum("crawlPauseLocalsearchCurrent", (System.currentTimeMillis() - sb.localSearchLastAccess) / 1000);
prop.putNum("crawlPauseRemotesearchCurrent", (System.currentTimeMillis() - sb.remoteSearchLastAccess) / 1000);
// table thread pool settings
prop.put("pool_0_name","Crawler Pool");
prop.put("pool_0_maxActive", sb.getConfigLong("crawler.MaxActiveThreads", 0));
prop.put("pool_0_numActive",sb.crawlQueues.workerSize());
final WorkflowThread httpd = sb.getThread("10_httpd");
prop.put("pool_1_name", "httpd Session Pool");
prop.put("pool_1_maxActive", ((serverCore)httpd).getMaxSessionCount());
prop.put("pool_1_numActive", ((serverCore)httpd).getJobCount());
prop.put("pool", "2");
final long curr_prio = sb.getConfigLong("javastart_priority",0);
prop.put("priority_normal",(curr_prio == 0) ? "1" : "0");
prop.put("priority_below",(curr_prio == 10) ? "1" : "0");
prop.put("priority_low",(curr_prio == 20) ? "1" : "0");
// parse initialization memory settings
final String Xmx = sb.getConfig("javastart_Xmx", "Xmx600m").substring(3);
prop.put("Xmx", Xmx.substring(0, Xmx.length() - 1));
final String Xms = sb.getConfig("javastart_Xms", "Xms600m").substring(3);
prop.put("Xms", Xms.substring(0, Xms.length() - 1));
final long diskFree = sb.getConfigLong(SwitchboardConstants.DISK_FREE, 3000L);
final long diskFreeHardlimit = sb.getConfigLong(SwitchboardConstants.DISK_FREE_HARDLIMIT, 1000L);
final long memoryAcceptDHT = sb.getConfigLong(SwitchboardConstants.MEMORY_ACCEPTDHT, 50000L);
final boolean observerTrigger = !MemoryControl.properState();
prop.put("diskFree", diskFree);
prop.put("diskFreeHardlimit", diskFreeHardlimit);
prop.put("memoryAcceptDHT", memoryAcceptDHT);
if(observerTrigger) prop.put("observerTrigger", "1");
// return rewrite values for templates
return prop;
}
private static String d(final String a, final String b) {
return (a == null) ? b : a;
}
}
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