mirror of
https://github.com/yacy/yacy_search_server.git
synced 2024-09-19 00:01:41 +02:00
6491270b3a
removed preferred IPv4 in start options and added a new field IP6 in peer seeds which will contain one or more IPv6 addresses. Now every peer has one or more IP addresses assigned, even several IPv6 addresses are possible. The peer-ping process must check all given and possible IP addresses for a backping and return the one IP which was successful when pinging the peer. The ping-ing peer must be able to recognize which of the given IPs are available for outside access of the peer and store this accordingly. If only one IPv6 address is available and no IPv4, then the IPv6 is stored in the old IP field of the seed DNA. Many methods in Seed.java are now marked as @deprecated because they had been used for a single IP only. There is still a large construction site left in YaCy now where all these deprecated methods must be replaced with new method calls. The 'extra'-IPs, used by cluster assignment had been removed since that can be replaced with IPv6 usage in p2p clusters. All clusters must now use IPv6 if they want an intranet-routing.
398 lines
18 KiB
Java
398 lines
18 KiB
Java
// yacySearch.java
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// -------------------------------------
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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
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//
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// $LastChangedDate$
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// $LastChangedRevision$
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// $LastChangedBy$
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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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package net.yacy.peers;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.Random;
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import java.util.Set;
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import java.util.SortedSet;
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import org.apache.solr.client.solrj.SolrQuery;
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import net.yacy.cora.document.analysis.Classification.ContentDomain;
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import net.yacy.cora.document.encoding.ASCII;
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import net.yacy.cora.protocol.Domains;
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import net.yacy.cora.storage.HandleSet;
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import net.yacy.cora.util.ConcurrentLog;
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import net.yacy.cora.util.Memory;
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import net.yacy.kelondro.data.word.Word;
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import net.yacy.kelondro.util.MemoryControl;
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import net.yacy.repository.Blacklist;
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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.search.query.QueryParams;
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import net.yacy.search.query.SearchEvent;
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import net.yacy.search.query.SecondarySearchSuperviser;
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public class RemoteSearch extends Thread {
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private static final ThreadGroup ysThreadGroup = new ThreadGroup("yacySearchThreadGroup");
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public static final ConcurrentLog log = new ConcurrentLog("DHT");
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final private SearchEvent event;
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final private String wordhashes, excludehashes;
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final private ContentDomain contentdom;
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final private int partitions;
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final private SecondarySearchSuperviser secondarySearchSuperviser;
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final private Blacklist blacklist;
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final private Seed targetPeer;
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private int urls;
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private final int count, maxDistance;
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private final long time;
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final private String language;
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public RemoteSearch(
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final SearchEvent event,
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final String wordhashes,
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final String excludehashes,
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final String language,
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final ContentDomain contentdom,
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final int count,
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final long time,
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final int maxDistance,
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final int partitions,
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final Seed targetPeer,
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final SecondarySearchSuperviser secondarySearchSuperviser,
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final Blacklist blacklist) {
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super(ysThreadGroup, "yacySearch_" + targetPeer.getName());
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this.event = event;
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this.wordhashes = wordhashes;
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this.excludehashes = excludehashes;
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this.language = language;
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this.contentdom = contentdom;
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this.partitions = partitions;
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this.secondarySearchSuperviser = secondarySearchSuperviser;
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this.blacklist = blacklist;
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this.targetPeer = targetPeer;
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this.urls = -1;
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this.count = count;
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this.time = time;
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this.maxDistance = maxDistance;
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}
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@Override
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public void run() {
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this.event.oneFeederStarted();
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try {
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this.urls = Protocol.primarySearch(
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this.event,
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this.wordhashes,
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this.excludehashes,
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this.language,
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this.contentdom,
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this.count,
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this.time,
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this.maxDistance,
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this.partitions,
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this.targetPeer,
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this.secondarySearchSuperviser,
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this.blacklist);
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if (this.urls >= 0) {
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// urls is an array of url hashes. this is only used for log output
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this.event.peers.mySeed().incRI(this.urls);
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this.event.peers.mySeed().incRU(this.urls);
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} else {
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Network.log.info("REMOTE SEARCH - no answer from remote peer " + this.targetPeer.hash + ":" + this.targetPeer.getName());
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}
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} catch (final Exception e) {
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ConcurrentLog.logException(e);
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} finally {
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this.event.oneFeederTerminated();
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}
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}
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public static String set2string(final HandleSet hashes) {
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final StringBuilder wh = new StringBuilder(hashes.size() * 12);
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final Iterator<byte[]> iter = hashes.iterator();
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while (iter.hasNext()) { wh.append(ASCII.String(iter.next())); }
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return wh.toString();
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}
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public Seed target() {
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return this.targetPeer;
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}
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public static void primaryRemoteSearches(
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final SearchEvent event,
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final int start, final int count,
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final long time,
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final Blacklist blacklist,
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final SortedSet<byte[]> clusterselection) {
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// check own peer status
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//if (wordIndex.seedDB.mySeed() == null || wordIndex.seedDB.mySeed().getPublicAddress() == null) { return null; }
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// check the peer memory and lifesign-situation to get a scaling for the number of remote search processes
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final boolean shortmem = MemoryControl.shortStatus();
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final int indexingQueueSize = event.query.getSegment().fulltext().bufferSize();
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int redundancy = event.peers.redundancy();
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StringBuilder healthMessage = new StringBuilder(50);
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if (indexingQueueSize > 0) {redundancy = Math.max(1, redundancy - 1); healthMessage.append(", indexingQueueSize > 0");}
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if (indexingQueueSize > 10) {redundancy = Math.max(1, redundancy - 1); healthMessage.append(", indexingQueueSize > 10");}
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if (indexingQueueSize > 50) {redundancy = Math.max(1, redundancy - 1); healthMessage.append(", indexingQueueSize > 50");}
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if (Memory.load() > 2.0) {redundancy = Math.max(1, redundancy - 1); healthMessage.append(", load() > 2.0");}
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if (Memory.cores() < 4) {redundancy = Math.max(1, redundancy - 1); healthMessage.append(", cores() < 4");}
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if (Memory.cores() == 1) {redundancy = 1; healthMessage.append(", cores() == 1");}
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int minage = 3;
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int robinsoncount = event.peers.scheme.verticalPartitions() * redundancy / 2;
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if (indexingQueueSize > 0) robinsoncount = Math.max(1, robinsoncount / 2);
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if (indexingQueueSize > 10) robinsoncount = Math.max(1, robinsoncount / 2);
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if (indexingQueueSize > 50) robinsoncount = Math.max(1, robinsoncount / 2);
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if (shortmem) {redundancy = 1; robinsoncount = Math.max(1, robinsoncount / 2); healthMessage.append(", shortmem");}
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// prepare seed targets and threads
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Random random = new Random(System.currentTimeMillis());
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Collection<Seed> dhtPeers = null;
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if (clusterselection != null) {
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dhtPeers = DHTSelection.selectClusterPeers(event.peers, clusterselection);
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} else {
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if (event.query.getQueryGoal().isCatchall() || event.query.getQueryGoal().getIncludeHashes().has(Segment.catchallHash)) {
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if (event.query.modifier.sitehost != null && event.query.modifier.sitehost.length() > 0) {
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// select peers according to host name, not the query goal
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String newGoal = Domains.getSmartSLD(event.query.modifier.sitehost);
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dhtPeers = DHTSelection.selectDHTSearchTargets(
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event.peers,
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QueryParams.hashes2Set(ASCII.String(Word.word2hash(newGoal))),
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minage,
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redundancy, event.peers.redundancy(),
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random);
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} else {
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// select just random peers
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dhtPeers = DHTSelection.seedsByAge(event.peers, false, count).values();
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}
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}
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dhtPeers = DHTSelection.selectDHTSearchTargets(
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event.peers,
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event.query.getQueryGoal().getIncludeHashes(),
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minage,
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redundancy, event.peers.redundancy(),
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random);
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// this set of peers may be too large and consume too many threads if more than one word is searched.
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// to prevent overloading, we do a subset collection based on random to prevent the death of the own peer
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// and to do a distributed load-balancing on the target peers
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long targetSize = 1 + redundancy * event.peers.scheme.verticalPartitions(); // this is the maximum for one word plus one
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if (dhtPeers.size() > targetSize) {
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ArrayList<Seed> pa = new ArrayList<Seed>(dhtPeers.size());
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pa.addAll(dhtPeers);
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dhtPeers.clear();
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for (int i = 0; i < targetSize; i++) dhtPeers.add(pa.remove(random.nextInt(pa.size())));
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}
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}
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if (dhtPeers == null) dhtPeers = new HashSet<Seed>();
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// select node targets
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final Collection<Seed> robinsonPeers = DHTSelection.selectExtraTargets(event.peers, event.query.getQueryGoal().getIncludeHashes(), minage, dhtPeers, robinsoncount, random);
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if (event.peers != null) {
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if (Switchboard.getSwitchboard().getConfigBool(SwitchboardConstants.DEBUG_SEARCH_REMOTE_DHT_TESTLOCAL, false)) {
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dhtPeers.clear();
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dhtPeers.add(event.peers.mySeed());
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}
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if (Switchboard.getSwitchboard().getConfigBool(SwitchboardConstants.DEBUG_SEARCH_REMOTE_SOLR_TESTLOCAL, false)) {
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robinsonPeers.clear();
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robinsonPeers.add(event.peers.mySeed());
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}
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}
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log.info("preparing remote search: shortmem=" + (shortmem ? "true" : "false") + ", indexingQueueSize=" + indexingQueueSize +
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", redundancy=" + redundancy + ", minage=" + minage + ", dhtPeers=" + dhtPeers.size() + ", robinsonpeers=" + robinsonPeers.size() + ", health: " + (healthMessage.length() > 0 ? healthMessage.substring(2) : "perfect"));
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// start solr searches
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final int targets = dhtPeers.size() + robinsonPeers.size();
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if (!Switchboard.getSwitchboard().getConfigBool(SwitchboardConstants.DEBUG_SEARCH_REMOTE_SOLR_OFF, false)) {
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final SolrQuery solrQuery = event.query.solrQuery(event.getQuery().contentdom, start == 0, event.excludeintext_image);
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for (Seed s: robinsonPeers) {
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if (MemoryControl.shortStatus() || Memory.load() > 4.0) continue;
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Thread t = solrRemoteSearch(event, solrQuery, start, count, s, targets, blacklist);
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event.nodeSearchThreads.add(t);
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}
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}
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// start search to YaCy DHT peers
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if (!Switchboard.getSwitchboard().getConfigBool(SwitchboardConstants.DEBUG_SEARCH_REMOTE_DHT_OFF, false)) {
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for (Seed dhtPeer: dhtPeers) {
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if (dhtPeer == null || dhtPeer.hash == null) continue;
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if (MemoryControl.shortStatus() || Memory.load() > 8.0) continue;
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try {
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RemoteSearch rs = new RemoteSearch(
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event,
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QueryParams.hashSet2hashString(event.query.getQueryGoal().getIncludeHashes()),
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QueryParams.hashSet2hashString(event.query.getQueryGoal().getExcludeHashes()),
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event.query.targetlang == null ? "" : event.query.targetlang,
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event.query.contentdom == null ? ContentDomain.ALL : event.query.contentdom,
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count,
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time,
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event.query.maxDistance,
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targets,
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dhtPeer,
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event.secondarySearchSuperviser,
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blacklist);
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rs.start();
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event.primarySearchThreadsL.add(rs);
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} catch (final OutOfMemoryError e) {
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ConcurrentLog.logException(e);
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break;
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}
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}
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}
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}
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public static Thread secondaryRemoteSearch(
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final SearchEvent event,
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final Set<String> wordhashes,
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final String urlhashes,
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final long time,
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final String targethash,
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final Blacklist blacklist) {
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// check own peer status
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if (event.peers.mySeed() == null || event.peers.mySeed().getIPs().size() == 0) { return null; }
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assert urlhashes != null;
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assert urlhashes.length() > 0;
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// prepare seed targets and threads
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final Seed targetPeer = event.peers.getConnected(targethash);
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if (targetPeer == null || targetPeer.hash == null) return null;
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Thread secondary = new Thread() {
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@Override
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public void run() {
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this.setName("RemoteSearch.secondaryRemoteSearch(" + wordhashes + " to " + targethash + ")");
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event.oneFeederStarted();
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try {
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int urls = Protocol.secondarySearch(
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event,
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QueryParams.hashSet2hashString(wordhashes),
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urlhashes,
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ContentDomain.ALL,
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20,
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time,
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999,
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0,
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targetPeer,
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blacklist);
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if (urls >= 0) {
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// urls is an array of url hashes. this is only used for log output
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if (urlhashes != null && urlhashes.length() > 0) Network.log.info("SECONDARY REMOTE SEARCH - remote peer " + targetPeer.hash + ":" + targetPeer.getName() + " contributed " + urls + " links for word hash " + wordhashes);
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event.peers.mySeed().incRI(urls);
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event.peers.mySeed().incRU(urls);
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} else {
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Network.log.info("REMOTE SEARCH - no answer from remote peer " + targetPeer.hash + ":" + targetPeer.getName());
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}
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} catch (final Exception e) {
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ConcurrentLog.logException(e);
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} finally {
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event.oneFeederTerminated();
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}
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}
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};
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secondary.start();
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return secondary;
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}
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public static Thread solrRemoteSearch(
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final SearchEvent event,
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final SolrQuery solrQuery,
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final int start,
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final int count,
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final Seed targetPeer,
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final int partitions,
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final Blacklist blacklist) {
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assert solrQuery != null;
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// check own peer status
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if (event.peers.mySeed() == null || event.peers.mySeed().getIPs().size() == 0) { return null; }
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// prepare threads
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Thread solr = new Thread() {
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@Override
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public void run() {
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this.setName("RemoteSearch.solrRemoteSearch(" + solrQuery.getQuery() + " to " + (targetPeer == null ? "myself" : targetPeer.hash) + ")");
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int urls = 0;
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try {
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event.oneFeederStarted();
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boolean localsearch = (targetPeer == null || targetPeer.equals(event.peers.mySeed())) && Switchboard.getSwitchboard().getConfigBool(SwitchboardConstants.DEBUG_SEARCH_REMOTE_SOLR_TESTLOCAL, false);
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urls = Protocol.solrQuery(
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event,
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solrQuery,
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start,
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count,
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localsearch ? event.peers.mySeed() : targetPeer,
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partitions,
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blacklist);
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if (urls >= 0) {
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// urls is an array of url hashes. this is only used for log output
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event.peers.mySeed().incRI(urls);
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event.peers.mySeed().incRU(urls);
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} else {
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if (targetPeer != null) {
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Network.log.info("REMOTE SEARCH - no answer from remote peer " + targetPeer.hash + ":" + targetPeer.getName());
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}
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}
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} catch (final Exception e) {
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ConcurrentLog.logException(e);
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} finally {
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event.oneFeederTerminated();
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}
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}
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};
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/*if (targetPeer == null) solr.run(); else*/ solr.start();
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return solr;
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}
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public static int remainingWaiting(final RemoteSearch[] searchThreads) {
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if (searchThreads == null) return 0;
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int alive = 0;
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for (final RemoteSearch searchThread : searchThreads) {
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if (searchThread.isAlive()) alive++;
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}
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return alive;
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}
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public static int collectedLinks(final RemoteSearch[] searchThreads) {
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int links = 0;
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for (final RemoteSearch searchThread : searchThreads) {
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if (!(searchThread.isAlive()) && searchThread.urls > 0) {
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links += searchThread.urls;
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}
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}
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return links;
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}
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public static void interruptAlive(final RemoteSearch[] searchThreads) {
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for (final RemoteSearch searchThread : searchThreads) {
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if (searchThread.isAlive()) searchThread.interrupt();
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}
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}
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}
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