mirror of
https://github.com/yacy/yacy_search_server.git
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15b7461bc7
We will use the default value for now on. This is much better for resource economy and fits better into a container/docker/kubernetes strategy. Furthermore, a small memory footprint is essential for the usage on small devices like RaspberryPi.
421 lines
22 KiB
Java
421 lines
22 KiB
Java
//PerformaceQueues_p.java
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//-----------------------
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//part of YaCy
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//(C) by Michael Peter Christen; mc@yacy.net
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//first published on http://www.anomic.de
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//Frankfurt, Germany, 2004, 2005
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//last major change: 16.02.2005
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//
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//This program is free software; you can redistribute it and/or modify
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//it under the terms of the GNU General Public License as published by
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//the Free Software Foundation; either version 2 of the License, or
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//(at your option) any later version.
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//
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//This program is distributed in the hope that it will be useful,
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//but WITHOUT ANY WARRANTY; without even the implied warranty of
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//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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//GNU General Public License for more details.
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//
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//You should have received a copy of the GNU General Public License
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//along with this program; if not, write to the Free Software
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//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//You must compile this file with
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//javac -classpath .:../classes Network.java
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//if the shell's current path is HTROOT
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import java.io.File;
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import java.util.Iterator;
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import java.util.Map;
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import org.apache.http.pool.PoolStats;
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import net.yacy.cora.federate.solr.instance.RemoteInstance;
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import net.yacy.cora.protocol.ConnectionInfo;
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import net.yacy.cora.protocol.RequestHeader;
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import net.yacy.cora.protocol.http.HTTPClient;
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import net.yacy.data.TransactionManager;
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import net.yacy.kelondro.data.word.WordReference;
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import net.yacy.kelondro.rwi.IndexCell;
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import net.yacy.kelondro.util.FileUtils;
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import net.yacy.kelondro.util.Formatter;
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import net.yacy.kelondro.util.MemoryControl;
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import net.yacy.kelondro.util.OS;
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import net.yacy.kelondro.workflow.BusyThread;
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import net.yacy.search.Switchboard;
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import net.yacy.search.SwitchboardConstants;
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import net.yacy.search.index.Segment;
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import net.yacy.server.serverObjects;
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import net.yacy.server.serverSwitch;
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public class PerformanceQueues_p {
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public static serverObjects respond(final RequestHeader header, final serverObjects post, final serverSwitch env) {
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// return variable that accumulates replacements
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final Switchboard sb = (Switchboard) env;
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final serverObjects prop = new serverObjects();
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File defaultSettingsFile = new File(sb.getAppPath(), "defaults/yacy.init");
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/* Acquire a transaction token for the next POST form submission */
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prop.put(TransactionManager.TRANSACTION_TOKEN_PARAM, TransactionManager.getTransactionToken(header));
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// get segment
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final Segment indexSegment = sb.index;
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if(post != null) {
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/* Check the transaction is valid : validation apply then for every uses of this post parameter */
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TransactionManager.checkPostTransaction(header, post);
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if(post.containsKey("resetObserver")) {
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/* The the reset state button is pushed, we only perform this action and do not save other form field values at the same time */
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MemoryControl.resetProperState();
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} else {
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if(post.containsKey("defaultFile")){
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// TODO check file-path!
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final File value = new File(sb.getAppPath(), post.get("defaultFile", "defaults/yacy.init"));
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// check if value is readable file
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if(value.exists() && value.isFile() && value.canRead()) {
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defaultSettingsFile = value;
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}
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}
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if (post.containsKey("Xmx")) {
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int xmx = post.getInt("Xmx", 600); // default maximum heap size
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if (OS.isWin32) xmx = Math.min(2000, xmx);
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sb.setConfig("javastart_Xmx", "Xmx" + xmx + "m");
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prop.put("setStartupCommit", "1");
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/* Acquire a transaction token for the restart operation */
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prop.put("setStartupCommit_" + TransactionManager.TRANSACTION_TOKEN_PARAM, TransactionManager.getTransactionToken(header, "/Steering.html"));
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}
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if(post.containsKey("diskFree")) {
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sb.setConfig(SwitchboardConstants.RESOURCE_DISK_FREE_MIN_STEADYSTATE, post.getLong("diskFree", SwitchboardConstants.RESOURCE_DISK_FREE_MIN_STEADYSTATE_DEFAULT));
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}
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if(post.containsKey("diskFreeHardlimit")) {
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sb.setConfig(SwitchboardConstants.RESOURCE_DISK_FREE_MIN_UNDERSHOT, post.getLong("diskFreeHardlimit", SwitchboardConstants.RESOURCE_DISK_FREE_MIN_UNDERSHOT_DEFAULT));
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/* This is a checkbox in Performance_p.html : when not checked the value is not in post parameters,
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* so we take only in account when the relate diskFreeHardlimit is set */
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sb.setConfig(SwitchboardConstants.RESOURCE_DISK_FREE_AUTOREGULATE,
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post.getBoolean("diskFreeAutoregulate"));
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}
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if (post.containsKey("diskUsed")) {
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sb.setConfig(SwitchboardConstants.RESOURCE_DISK_USED_MAX_STEADYSTATE,
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post.getLong("diskUsed", SwitchboardConstants.RESOURCE_DISK_USED_MAX_STEADYSTATE_DEFAULT));
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}
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if (post.containsKey("diskUsedHardlimit")) {
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sb.setConfig(SwitchboardConstants.RESOURCE_DISK_USED_MAX_OVERSHOT, post.getLong("diskUsedHardlimit",
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SwitchboardConstants.RESOURCE_DISK_USED_MAX_OVERSHOT_DEFAULT));
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/* This is a checkbox in Performance_p.html : when not checked the value is not in post parameters,
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* so we take only in account when the related diskFreeHardlimit is set */
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sb.setConfig(SwitchboardConstants.RESOURCE_DISK_USED_AUTOREGULATE,
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post.getBoolean("diskUsedAutoregulate"));
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}
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if(post.containsKey("memoryAcceptDHT")) {
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sb.setConfig(SwitchboardConstants.MEMORY_ACCEPTDHT, post.getInt("memoryAcceptDHT", 50));
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}
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}
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}
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final Map<String, String> defaultSettings = ((post == null) || (!(post.containsKey("submitdefault")))) ? null : FileUtils.loadMap(defaultSettingsFile);
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Iterator<String> threads = sb.threadNames();
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String threadName;
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BusyThread thread;
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final boolean xml = header.getPathInfo().endsWith(".xml");
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prop.setLocalized(!xml);
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// calculate totals
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long blocktime_total = 0, sleeptime_total = 0, exectime_total = 0;
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while (threads.hasNext()) {
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threadName = threads.next();
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thread = sb.getThread(threadName);
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blocktime_total += thread.getBlockTime();
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sleeptime_total += thread.getSleepTime();
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exectime_total += thread.getExecTime();
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}
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if (blocktime_total == 0) blocktime_total = 1;
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if (sleeptime_total == 0) sleeptime_total = 1;
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if (exectime_total == 0) exectime_total = 1;
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// set templates for latest news from the threads
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long blocktime, sleeptime, exectime;
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long idlesleep, busysleep, memuse, memprereq;
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double loadprereq;
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int queuesize;
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threads = sb.threadNames();
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int c = 0;
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long idleCycles, busyCycles, memshortageCycles, highCPUCycles;
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// set profile?
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final boolean setProfile = (post != null && post.containsKey("submitdefault"));
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final boolean setDelay = (post != null) && (post.containsKey("submitdelay"));
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// save used settings file to config
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if (setProfile && post != null){
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sb.setConfig("performanceSpeed", post.getInt("profileSpeed", 100));
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}
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final IndexCell<WordReference> rwi = indexSegment.termIndex();
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while (threads.hasNext()) {
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threadName = threads.next();
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thread = sb.getThread(threadName);
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// set values to templates
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prop.put("table_" + c + "_threadname", threadName);
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prop.putHTML("table_" + c + "_hasurl_shortdescr", thread.getShortDescription());
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if(thread.getMonitorURL() == null) {
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prop.put("table_"+c+"_hasurl", "0");
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}else{
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prop.put("table_"+c+"_hasurl", "1");
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prop.put("table_" + c + "_hasurl_url", thread.getMonitorURL());
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}
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prop.putHTML("table_" + c + "_longdescr", thread.getLongDescription());
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queuesize = thread.getJobCount();
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prop.put("table_" + c + "_queuesize", (queuesize == Integer.MAX_VALUE) ? "unlimited" : Formatter.number(queuesize, !xml));
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blocktime = thread.getBlockTime();
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sleeptime = thread.getSleepTime();
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exectime = thread.getExecTime();
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memuse = thread.getMemoryUse();
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idleCycles = thread.getIdleCycles();
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busyCycles = thread.getBusyCycles();
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memshortageCycles = thread.getOutOfMemoryCycles();
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highCPUCycles = thread.getHighCPUCycles();
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prop.putNum("table_" + c + "_blocktime", blocktime / 1000);
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prop.putNum("table_" + c + "_blockpercent", 100 * blocktime / blocktime_total);
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prop.putNum("table_" + c + "_sleeptime", sleeptime / 1000);
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prop.putNum("table_" + c + "_sleeppercent", 100 * sleeptime / sleeptime_total);
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prop.putNum("table_" + c + "_exectime", exectime / 1000);
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prop.putNum("table_" + c + "_execpercent", 100 * exectime / exectime_total);
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prop.putNum("table_" + c + "_totalcycles", idleCycles + busyCycles + memshortageCycles + highCPUCycles);
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prop.putNum("table_" + c + "_idlecycles", idleCycles);
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prop.putNum("table_" + c + "_busycycles", busyCycles);
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prop.putNum("table_" + c + "_memscycles", memshortageCycles);
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prop.putNum("table_" + c + "_highcpucycles", highCPUCycles);
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prop.putNum("table_" + c + "_sleeppercycle", ((idleCycles + busyCycles) == 0) ? -1 : sleeptime / (idleCycles + busyCycles));
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prop.putNum("table_" + c + "_execpercycle", (busyCycles == 0) ? -1 : exectime / busyCycles);
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prop.putNum("table_" + c + "_memusepercycle", (busyCycles == 0) ? -1 : memuse / busyCycles / 1024);
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// load with old values
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idlesleep = sb.getConfigLong(threadName + "_idlesleep" , 1000);
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busysleep = sb.getConfigLong(threadName + "_busysleep", 100);
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memprereq = sb.getConfigLong(threadName + "_memprereq", 0);
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loadprereq = sb.getConfigFloat(threadName + "_loadprereq", 9);
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if (setDelay && post != null) {
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// load with new values
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idlesleep = post.getLong(threadName + "_idlesleep", idlesleep);
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busysleep = post.getLong(threadName + "_busysleep", busysleep);
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memprereq = post.getLong(threadName + "_memprereq", memprereq) * 1024l;
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if (memprereq == 0) memprereq = sb.getConfigLong(threadName + "_memprereq", 0);
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loadprereq = post.getDouble(threadName + "_loadprereq", loadprereq);
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if (loadprereq == 0) loadprereq = sb.getConfigFloat(threadName + "_loadprereq", 9);
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// check values to prevent short-cut loops
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if (idlesleep < 1000) idlesleep = 1000;
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sb.setThreadPerformance(threadName, idlesleep, busysleep, memprereq, loadprereq);
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idlesleep = sb.getConfigLong(threadName + "_idlesleep", idlesleep);
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busysleep = sb.getConfigLong(threadName + "_busysleep", busysleep);
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}
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if (setProfile) {
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// load with new values
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idlesleep = Long.parseLong(d(defaultSettings.get(threadName + "_idlesleep"), String.valueOf(idlesleep)));
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busysleep = Long.parseLong(d(defaultSettings.get(threadName + "_busysleep"), String.valueOf(busysleep)));
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memprereq = Long.parseLong(d(defaultSettings.get(threadName + "_memprereq"), String.valueOf(memprereq)));
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loadprereq = Double.parseDouble(d(defaultSettings.get(threadName + "_loadprereq"), String.valueOf(loadprereq)));
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// check values to prevent short-cut loops
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if (idlesleep < 1000) idlesleep = 1000;
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//if (threadName.equals(plasmaSwitchboardConstants.CRAWLJOB_LOCAL_CRAWL) && (busysleep < 50)) busysleep = 50;
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sb.setThreadPerformance(threadName, idlesleep, busysleep, memprereq, loadprereq);
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}
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prop.put("table_" + c + "_idlesleep", idlesleep);
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prop.put("table_" + c + "_busysleep", busysleep);
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prop.put("table_" + c + "_memprereq", memprereq / 1024);
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prop.put("table_" + c + "_loadprereq", loadprereq);
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// disallow setting of memprereq for indexer to prevent db from throwing OOMs
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// prop.put("table_" + c + "_disabled", /*(threadName.endsWith("_indexing")) ? 1 :*/ "0");
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prop.put("table_" + c + "_recommendation", threadName.endsWith("_indexing") ? "1" : "0");
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prop.putNum("table_" + c + "_recommendation_value", rwi == null ? 0 : threadName.endsWith("_indexing") ? (rwi.minMem() / 1024) : 0);
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c++;
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}
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prop.put("table", c);
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c = 0;
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final int[] speedValues = {200,150,100,50,25,10};
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final int usedspeed = sb.getConfigInt("performanceSpeed", 100);
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for(final int speed: speedValues){
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prop.put("speed_" + c + "_value", speed);
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prop.put("speed_" + c + "_label", speed + " %");
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prop.put("speed_" + c + "_used", (speed == usedspeed) ? "1" : "0");
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c++;
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}
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prop.put("speed", c);
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if ((post != null) && (post.containsKey("cacheSizeSubmit"))) {
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final int wordCacheMaxCount = post.getInt("wordCacheMaxCount", 20000);
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sb.setConfig(SwitchboardConstants.WORDCACHE_MAX_COUNT, Integer.toString(wordCacheMaxCount));
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if (rwi != null) rwi.setBufferMaxWordCount(wordCacheMaxCount);
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}
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/* Setting remote searches max loads */
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if (post != null) {
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if(post.containsKey("setRemoteSearchLoads")) {
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float loadValue = post.getFloat("remoteSearchRWIMaxLoad",
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sb.getConfigFloat(SwitchboardConstants.REMOTESEARCH_MAXLOAD_RWI,
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SwitchboardConstants.REMOTESEARCH_MAXLOAD_RWI_DEFAULT));
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sb.setConfig(SwitchboardConstants.REMOTESEARCH_MAXLOAD_RWI, loadValue);
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loadValue = post.getFloat("remoteSearchSolrMaxLoad",
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sb.getConfigFloat(SwitchboardConstants.REMOTESEARCH_MAXLOAD_SOLR,
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SwitchboardConstants.REMOTESEARCH_MAXLOAD_SOLR_DEFAULT));
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sb.setConfig(SwitchboardConstants.REMOTESEARCH_MAXLOAD_SOLR, loadValue);
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} else if(post.containsKey("defaultRemoteSearchLoads")) {
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sb.setConfig(SwitchboardConstants.REMOTESEARCH_MAXLOAD_RWI, SwitchboardConstants.REMOTESEARCH_MAXLOAD_RWI_DEFAULT);
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sb.setConfig(SwitchboardConstants.REMOTESEARCH_MAXLOAD_SOLR, SwitchboardConstants.REMOTESEARCH_MAXLOAD_SOLR_DEFAULT);
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}
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}
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if ((post != null) && (post.containsKey("poolConfig"))) {
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/*
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* configuring the crawler pool
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*/
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// get the current crawler pool configuration
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int maxBusy = post.getInt("Crawler Pool_maxActive", 8);
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// storing the new values into configfile
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sb.setConfig(SwitchboardConstants.CRAWLER_THREADS_ACTIVE_MAX,maxBusy);
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/*
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* configuring the robots.txt loading pool
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*/
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// get the current crawler pool configuration
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maxBusy = post.getInt("Robots.txt Pool_maxActive", SwitchboardConstants.ROBOTS_TXT_THREADS_ACTIVE_MAX_DEFAULT);
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// storing the new values into configfile
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sb.setConfig(SwitchboardConstants.ROBOTS_TXT_THREADS_ACTIVE_MAX, maxBusy);
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/*
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* configuring the http pool
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*/
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try {
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maxBusy = post.getInt("httpd Session Pool_maxActive", 8);
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} catch (final NumberFormatException e) {
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maxBusy = 8;
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}
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ConnectionInfo.setServerMaxcount(maxBusy);
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// storing the new values into configfile
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sb.setConfig("httpdMaxBusySessions",maxBusy);
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}
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if ((post != null) && (post.containsKey("connectionPoolConfig"))) {
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/* Configure the general outgoing HTTP connection pool */
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int maxTotal = post.getInt(SwitchboardConstants.HTTP_OUTGOING_POOL_GENERAL_MAX_TOTAL,
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SwitchboardConstants.HTTP_OUTGOING_POOL_GENERAL_MAX_TOTAL_DEFAULT);
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if (maxTotal > 0) {
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sb.setConfig(SwitchboardConstants.HTTP_OUTGOING_POOL_GENERAL_MAX_TOTAL, maxTotal);
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HTTPClient.initPoolMaxConnections(HTTPClient.CONNECTION_MANAGER, maxTotal);
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}
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/* Configure the remote Solr outgoing HTTP connection pool */
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maxTotal = post.getInt(SwitchboardConstants.HTTP_OUTGOING_POOL_REMOTE_SOLR_MAX_TOTAL,
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SwitchboardConstants.HTTP_OUTGOING_POOL_REMOTE_SOLR_MAX_TOTAL_DEFAULT);
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if (maxTotal > 0) {
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sb.setConfig(SwitchboardConstants.HTTP_OUTGOING_POOL_REMOTE_SOLR_MAX_TOTAL, maxTotal);
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RemoteInstance.initPoolMaxConnections(RemoteInstance.CONNECTION_MANAGER, maxTotal);
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}
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}
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if ((post != null) && (post.containsKey("onlineCautionSubmit"))) {
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sb.setConfig(SwitchboardConstants.PROXY_ONLINE_CAUTION_DELAY, Integer.toString(post.getInt("crawlPauseProxy", 30000)));
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sb.setConfig(SwitchboardConstants.LOCALSEACH_ONLINE_CAUTION_DELAY, Integer.toString(post.getInt("crawlPauseLocalsearch", 30000)));
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sb.setConfig(SwitchboardConstants.REMOTESEARCH_ONLINE_CAUTION_DELAY, Integer.toString(post.getInt("crawlPauseRemotesearch", 30000)));
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}
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// table cache settings
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prop.putNum("wordCacheSize", indexSegment.RWIBufferCount());
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prop.putNum("wordCacheSizeKBytes", rwi == null ? 0 : rwi.getBufferSizeBytes() / 1024L);
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prop.putNum("maxURLinCache", rwi == null ? 0 : rwi.getBufferMaxReferences());
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prop.putNum("maxAgeOfCache", rwi == null ? 0 : rwi.getBufferMaxAge() / 1000 / 60); // minutes
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prop.putNum("minAgeOfCache", rwi == null ? 0 : rwi.getBufferMinAge() / 1000 / 60); // minutes
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prop.putNum("maxWaitingWordFlush", sb.getConfigLong("maxWaitingWordFlush", 180));
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prop.put("wordCacheMaxCount", sb.getConfigLong(SwitchboardConstants.WORDCACHE_MAX_COUNT, 20000));
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prop.put("crawlPauseProxy", sb.getConfigLong(SwitchboardConstants.PROXY_ONLINE_CAUTION_DELAY, 30000));
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prop.put("crawlPauseLocalsearch", sb.getConfigLong(SwitchboardConstants.LOCALSEACH_ONLINE_CAUTION_DELAY, 30000));
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prop.put("crawlPauseRemotesearch", sb.getConfigLong(SwitchboardConstants.REMOTESEARCH_ONLINE_CAUTION_DELAY, 30000));
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prop.putNum("crawlPauseProxyCurrent", (System.currentTimeMillis() - sb.proxyLastAccess) / 1000);
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prop.putNum("crawlPauseLocalsearchCurrent", (System.currentTimeMillis() - sb.localSearchLastAccess) / 1000);
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prop.putNum("crawlPauseRemotesearchCurrent", (System.currentTimeMillis() - sb.remoteSearchLastAccess) / 1000);
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// table thread pool settings
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prop.put("pool_0_name","Crawler Pool");
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prop.put("pool_0_maxActive", sb.getConfigLong(SwitchboardConstants.CRAWLER_THREADS_ACTIVE_MAX, 0));
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prop.put("pool_0_numActive", sb.crawlQueues.activeWorkerEntries().size());
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prop.put("pool_1_name","Robots.txt Pool");
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prop.put("pool_1_maxActive", sb.getConfigInt(SwitchboardConstants.ROBOTS_TXT_THREADS_ACTIVE_MAX, SwitchboardConstants.ROBOTS_TXT_THREADS_ACTIVE_MAX_DEFAULT));
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prop.put("pool_1_numActive", sb.crawlQueues.activeWorkerEntries().size());
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prop.put("pool_2_name", "httpd Session Pool");
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prop.put("pool_2_maxActive", ConnectionInfo.getServerMaxcount());
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prop.put("pool_2_numActive", ConnectionInfo.getServerCount());
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prop.put("pool", "3");
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/* Connection pools settings */
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prop.put(SwitchboardConstants.HTTP_OUTGOING_POOL_GENERAL_MAX_TOTAL,
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sb.getConfigInt(SwitchboardConstants.HTTP_OUTGOING_POOL_GENERAL_MAX_TOTAL,
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SwitchboardConstants.HTTP_OUTGOING_POOL_GENERAL_MAX_TOTAL_DEFAULT));
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prop.put(SwitchboardConstants.HTTP_OUTGOING_POOL_REMOTE_SOLR_MAX_TOTAL,
|
|
sb.getConfigInt(SwitchboardConstants.HTTP_OUTGOING_POOL_REMOTE_SOLR_MAX_TOTAL,
|
|
SwitchboardConstants.HTTP_OUTGOING_POOL_REMOTE_SOLR_MAX_TOTAL_DEFAULT));
|
|
/* Connection pools stats */
|
|
PoolStats stats = HTTPClient.CONNECTION_MANAGER.getTotalStats();
|
|
prop.put("pool.general.leased", stats.getLeased());
|
|
prop.put("pool.general.available", stats.getAvailable());
|
|
prop.put("pool.general.pending", stats.getPending());
|
|
|
|
stats = RemoteInstance.CONNECTION_MANAGER.getTotalStats();
|
|
prop.put("pool.remoteSolr.leased", stats.getLeased());
|
|
prop.put("pool.remoteSolr.available", stats.getAvailable());
|
|
prop.put("pool.remoteSolr.pending", stats.getPending());
|
|
|
|
/* Remote searches max loads settings */
|
|
prop.put("remoteSearchRWIMaxLoad", sb.getConfigFloat(SwitchboardConstants.REMOTESEARCH_MAXLOAD_RWI,
|
|
SwitchboardConstants.REMOTESEARCH_MAXLOAD_RWI_DEFAULT));
|
|
prop.put("remoteSearchSolrMaxLoad", sb.getConfigFloat(SwitchboardConstants.REMOTESEARCH_MAXLOAD_SOLR,
|
|
SwitchboardConstants.REMOTESEARCH_MAXLOAD_SOLR_DEFAULT));
|
|
|
|
// parse initialization memory settings
|
|
final String Xmx = sb.getConfig("javastart_Xmx", "Xmx600m").substring(3);
|
|
prop.put("Xmx", Xmx.substring(0, Xmx.length() - 1));
|
|
|
|
final long diskFree = sb.getConfigLong(SwitchboardConstants.RESOURCE_DISK_FREE_MIN_STEADYSTATE, 3000L);
|
|
final long diskFreeHardlimit = sb.getConfigLong(SwitchboardConstants.RESOURCE_DISK_FREE_MIN_UNDERSHOT, 1000L);
|
|
final long memoryAcceptDHT = sb.getConfigLong(SwitchboardConstants.MEMORY_ACCEPTDHT, 50L);
|
|
final boolean observerTrigger = !MemoryControl.properState();
|
|
prop.put("diskFree", diskFree);
|
|
prop.put("diskFreeHardlimit", diskFreeHardlimit);
|
|
prop.put("diskFreeAutoregulate", sb.getConfigBool(SwitchboardConstants.RESOURCE_DISK_FREE_AUTOREGULATE,
|
|
SwitchboardConstants.RESOURCE_DISK_FREE_AUTOREGULATE_DEFAULT) ? 1 : 0);
|
|
prop.put("diskUsed", sb.getConfigLong(SwitchboardConstants.RESOURCE_DISK_USED_MAX_STEADYSTATE,
|
|
SwitchboardConstants.RESOURCE_DISK_USED_MAX_STEADYSTATE_DEFAULT));
|
|
prop.put("diskUsedHardlimit", sb.getConfigLong(SwitchboardConstants.RESOURCE_DISK_USED_MAX_OVERSHOT,
|
|
SwitchboardConstants.RESOURCE_DISK_USED_MAX_OVERSHOT_DEFAULT));
|
|
prop.put("diskUsedAutoregulate", sb.getConfigBool(SwitchboardConstants.RESOURCE_DISK_USED_AUTOREGULATE,
|
|
SwitchboardConstants.RESOURCE_DISK_USED_AUTOREGULATE_DEFAULT) ? 1 : 0);
|
|
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;
|
|
}
|
|
}
|