You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
282 lines
14 KiB
282 lines
14 KiB
// plasmaDHTFlush.java
|
|
// ------------------------------
|
|
// part of YaCy
|
|
// (C) by Michael Peter Christen; mc@anomic.de
|
|
// first published on http://www.anomic.de
|
|
// Frankfurt, Germany, 2005, 2006
|
|
//
|
|
// This Class was written by Martin Thelian
|
|
//
|
|
// 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
|
|
//
|
|
// Using this software in any meaning (reading, learning, copying, compiling,
|
|
// running) means that you agree that the Author(s) is (are) not responsible
|
|
// for cost, loss of data or any harm that may be caused directly or indirectly
|
|
// by usage of this softare or this documentation. The usage of this software
|
|
// is on your own risk. The installation and usage (starting/running) of this
|
|
// software may allow other people or application to access your computer and
|
|
// any attached devices and is highly dependent on the configuration of the
|
|
// software which must be done by the user of the software; the author(s) is
|
|
// (are) also not responsible for proper configuration and usage of the
|
|
// software, even if provoked by documentation provided together with
|
|
// the software.
|
|
//
|
|
// Any changes to this file according to the GPL as documented in the file
|
|
// gpl.txt aside this file in the shipment you received can be done to the
|
|
// lines that follows this copyright notice here, but changes must not be
|
|
// done inside the copyright notive above. A re-distribution must contain
|
|
// the intact and unchanged copyright notice.
|
|
// Contributions and changes to the program code must be marked as such.
|
|
|
|
package de.anomic.plasma;
|
|
|
|
import de.anomic.server.logging.serverLog;
|
|
import de.anomic.yacy.yacySeed;
|
|
|
|
public class plasmaDHTFlush extends Thread {
|
|
private yacySeed seed = null;
|
|
private boolean delete = false;
|
|
private boolean finished = false;
|
|
private boolean gzipBody4Transfer = false;
|
|
private int timeout4Transfer = 60000;
|
|
private int transferedEntryCount = 0;
|
|
private int transferedContainerCount = 0;
|
|
private String status = "Running";
|
|
private String oldStartingPointHash = "------------", startPointHash = "------------";
|
|
private int initialWordsDBSize = 0;
|
|
private int chunkSize = 500;
|
|
private final long startingTime = System.currentTimeMillis();
|
|
private final plasmaSwitchboard sb;
|
|
private plasmaDHTTransfer worker = null;
|
|
private serverLog log;
|
|
private plasmaWordIndex wordIndex;
|
|
|
|
public plasmaDHTFlush(serverLog log, plasmaWordIndex wordIndex, yacySeed seed, boolean delete, boolean gzipBody, int timeout) {
|
|
super(new ThreadGroup("TransferIndexThreadGroup"),"TransferIndex_" + seed.getName());
|
|
this.log = log;
|
|
this.wordIndex = wordIndex;
|
|
this.seed = seed;
|
|
this.delete = delete;
|
|
this.sb = plasmaSwitchboard.getSwitchboard();
|
|
this.initialWordsDBSize = sb.wordIndex.size();
|
|
this.gzipBody4Transfer = gzipBody;
|
|
this.timeout4Transfer = timeout;
|
|
//this.maxOpenFiles4Transfer = (int) sb.getConfigLong("indexTransfer.maxOpenFiles",800);
|
|
}
|
|
|
|
public void run() {
|
|
performTransferWholeIndex();
|
|
}
|
|
|
|
public void stopIt(boolean wait) throws InterruptedException {
|
|
this.finished = true;
|
|
if (wait) this.join();
|
|
}
|
|
|
|
public boolean isFinished() {
|
|
return this.finished;
|
|
}
|
|
|
|
public boolean deleteIndex() {
|
|
return this.delete;
|
|
}
|
|
|
|
public int[] getIndexCount() {
|
|
plasmaDHTTransfer workerThread = this.worker;
|
|
if (workerThread != null) {
|
|
return new int[]{this.chunkSize, workerThread.dhtChunk.indexCount()};
|
|
}
|
|
return new int[]{this.chunkSize, 500};
|
|
}
|
|
|
|
public int getTransferedEntryCount() {
|
|
return this.transferedEntryCount;
|
|
}
|
|
|
|
public int getTransferedContainerCount() {
|
|
return this.transferedContainerCount;
|
|
}
|
|
|
|
public float getTransferedContainerPercent() {
|
|
long currentWordsDBSize = sb.wordIndex.size();
|
|
if (initialWordsDBSize == 0) return 100;
|
|
else if (currentWordsDBSize >= initialWordsDBSize) return 0;
|
|
//else return (float) ((initialWordsDBSize-currentWordsDBSize)/(initialWordsDBSize/100));
|
|
else return (float)(this.transferedContainerCount*100/initialWordsDBSize);
|
|
}
|
|
|
|
public int getTransferedEntitySpeed() {
|
|
long transferTime = System.currentTimeMillis() - startingTime;
|
|
if (transferTime <= 0) transferTime = 1;
|
|
return (int) ((1000 * transferedEntryCount) / transferTime);
|
|
}
|
|
|
|
public yacySeed getSeed() {
|
|
return this.seed;
|
|
}
|
|
|
|
public String[] getStatus() {
|
|
plasmaDHTTransfer workerThread = this.worker;
|
|
if (workerThread != null) {
|
|
return new String[]{this.status,workerThread.getStatusMessage()};
|
|
}
|
|
return new String[]{this.status,"Not running"};
|
|
}
|
|
|
|
public String[] getRange() {
|
|
plasmaDHTTransfer workerThread = this.worker;
|
|
if (workerThread != null) {
|
|
return new String[]{"[" + oldStartingPointHash + ".." + startPointHash + "]",
|
|
"[" + workerThread.dhtChunk.firstContainer().hashCode() + ".." + workerThread.dhtChunk.lastContainer().hashCode() + "]"};
|
|
}
|
|
return new String[]{"[" + oldStartingPointHash + ".." + startPointHash + "]","[------------..------------]"};
|
|
}
|
|
|
|
public void performTransferWholeIndex() {
|
|
plasmaDHTChunk newDHTChunk = null, oldDHTChunk = null;
|
|
try {
|
|
// pausing the regular index distribution
|
|
// TODO: adding sync, to wait for a still running index distribution to finish
|
|
//plasmaWordIndexDistribution.paused = true;
|
|
|
|
// initial startingpoint of intex transfer is "------------"
|
|
log.logFine("Selected hash " + startPointHash + " as start point for index distribution of whole index");
|
|
|
|
/* Loop until we have
|
|
* - finished transfer of whole index
|
|
* - detected a server shutdown or user interruption
|
|
* - detected a failure
|
|
*/
|
|
long selectionStart = System.currentTimeMillis(), selectionEnd = 0, selectionTime = 0, iteration = 0;
|
|
|
|
while (!finished && !Thread.currentThread().isInterrupted()) {
|
|
iteration++;
|
|
selectionStart = System.currentTimeMillis();
|
|
oldDHTChunk = newDHTChunk;
|
|
|
|
// selecting 500 words to transfer
|
|
this.status = "Running: Selecting chunk " + iteration;
|
|
newDHTChunk = new plasmaDHTChunk(log, wordIndex, sb.urlPool.loadedURL, this.chunkSize/3, this.chunkSize, this.startPointHash);
|
|
|
|
/* If we havn't selected a word chunk this could be because of
|
|
* a) no words are left in the index
|
|
* b) max open file limit was exceeded
|
|
*/
|
|
if ((newDHTChunk == null) ||
|
|
(newDHTChunk.containerSize() == 0) ||
|
|
(newDHTChunk.getStatus() == plasmaDHTChunk.chunkStatus_FAILED)) {
|
|
if (sb.wordIndex.size() > 0) {
|
|
// if there are still words in the index we try it again now
|
|
startPointHash = "------------";
|
|
} else {
|
|
// otherwise we could end transfer now
|
|
log.logFine("No index available for index transfer, hash start-point " + startPointHash);
|
|
this.status = "Finished. " + iteration + " chunks transfered.";
|
|
finished = true;
|
|
}
|
|
} else {
|
|
|
|
// getting start point for next DHT-selection
|
|
oldStartingPointHash = startPointHash;
|
|
startPointHash = newDHTChunk.lastContainer().wordHash(); // DHT targets must have greater hashes
|
|
|
|
selectionEnd = System.currentTimeMillis();
|
|
selectionTime = selectionEnd - selectionStart;
|
|
log.logInfo("Index selection of " + newDHTChunk.indexCount() + " words [" + newDHTChunk.firstContainer().wordHash() + " .. " + newDHTChunk.lastContainer().wordHash() + "]" +
|
|
" in " +
|
|
(selectionTime / 1000) + " seconds (" +
|
|
(1000 * newDHTChunk.indexCount() / (selectionTime+1)) + " words/s)");
|
|
}
|
|
|
|
// query status of old worker thread
|
|
if (worker != null) {
|
|
this.status = "Finished: Selecting chunk " + iteration;
|
|
worker.join();
|
|
if (worker.dhtChunk.getStatus() != plasmaDHTChunk.chunkStatus_COMPLETE) {
|
|
// if the transfer failed we abort index transfer now
|
|
this.status = "Aborted because of Transfer error:\n" + worker.dhtChunk.getStatus();
|
|
|
|
// abort index transfer
|
|
return;
|
|
} else {
|
|
/*
|
|
* If index transfer was done successfully we close all remaining open
|
|
* files that belong to the old index chunk and handover a new chunk
|
|
* to the transfer thread.
|
|
* Addintionally we recalculate the chunk size to optimize performance
|
|
*/
|
|
|
|
this.chunkSize = worker.dhtChunk.indexCount();
|
|
long transferTime = worker.getTransferTime();
|
|
//TODO: only increase chunk Size if there is free memory left on the server
|
|
|
|
// we need aprox. 73Byte per IndexEntity and an average URL length of 32 char
|
|
//if (ft.freeMemory() < 73*2*100)
|
|
if (transferTime > 60*1000) {
|
|
if (chunkSize>200) chunkSize-=100;
|
|
} else if (selectionTime < transferTime){
|
|
this.chunkSize +=100;
|
|
//chunkSize+=50;
|
|
} else if (selectionTime >= selectionTime){
|
|
if (chunkSize>200) chunkSize-=100;
|
|
}
|
|
|
|
selectionStart = System.currentTimeMillis();
|
|
|
|
// deleting transfered words from index
|
|
if (delete) {
|
|
this.status = "Running: Deleting chunk " + iteration;
|
|
transferedEntryCount += oldDHTChunk.indexCount();
|
|
transferedContainerCount += oldDHTChunk.containerSize();
|
|
int urlReferences = oldDHTChunk.deleteTransferIndexes();
|
|
log.logFine("Deleted from " + oldDHTChunk.containerSize() + " transferred RWIs locally " + urlReferences + " URL references");
|
|
} else {
|
|
transferedEntryCount += oldDHTChunk.indexCount();
|
|
transferedContainerCount += oldDHTChunk.containerSize();
|
|
}
|
|
oldDHTChunk = null;
|
|
}
|
|
this.worker = null;
|
|
}
|
|
|
|
// handover chunk to transfer worker
|
|
if ((newDHTChunk != null) &&
|
|
(newDHTChunk.containerSize() > 0) ||
|
|
(newDHTChunk.getStatus() == plasmaDHTChunk.chunkStatus_FILLED)) {
|
|
worker = new plasmaDHTTransfer(log, seed, newDHTChunk, gzipBody4Transfer, timeout4Transfer, 5);
|
|
worker.start();
|
|
}
|
|
}
|
|
|
|
// if we reach this point we were aborted by the user or by server shutdown
|
|
if (sb.wordIndex.size() > 0) this.status = "aborted";
|
|
} catch (Exception e) {
|
|
this.status = "Error: " + e.getMessage();
|
|
log.logWarning("Index transfer to peer " + seed.getName() + ":" + seed.hash + " failed:'" + e.getMessage() + "'",e);
|
|
|
|
} finally {
|
|
if (worker != null) {
|
|
worker.stopIt();
|
|
try {worker.join();}catch(Exception e){}
|
|
// worker = null;
|
|
}
|
|
|
|
//plasmaWordIndexDistribution.paused = false;
|
|
}
|
|
}
|
|
|
|
|
|
}
|