I2P_Developers/i2p.android.base
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2006-05-06 jrandom

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* Readjust the tunnel creation timeouts to reject less but fail earlier,
      while tracking the extended timeout events.
This commit is contained in:
jrandom
2006-05-06 20:27:34 +00:00
committed by zzz
parent 2a3974c71d
commit 70cf9e4ca7
4 changed files with 15 additions and 9 deletions
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6
history.txt
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@ -1,4 +1,8 @@
$Id: history.txt,v 1.468 2006/05/03 06:13:29 complication Exp $
$Id: history.txt,v 1.469 2006/05/04 18:09:17 jrandom Exp $
2006-05-06 jrandom
* Readjust the tunnel creation timeouts to reject less but fail earlier,
while tracking the extended timeout events.
2006-05-04 jrandom
* Short circuit a highly congested part of the stat logging unless its

4
router/java/src/net/i2p/router/RouterVersion.java
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@ -15,9 +15,9 @@ import net.i2p.CoreVersion;
*
*/
public class RouterVersion {
public final static String ID = "$Revision: 1.408 $ $Date: 2006/05/03 06:13:29 $";
public final static String ID = "$Revision: 1.409 $ $Date: 2006/05/04 18:08:51 $";
public final static String VERSION = "0.6.1.17";
public final static long BUILD = 7;
public final static long BUILD = 8;
public static void main(String args[]) {
System.out.println("I2P Router version: " + VERSION + "-" + BUILD);
System.out.println("Router ID: " + RouterVersion.ID);

12
router/java/src/net/i2p/router/tunnel/pool/BuildHandler.java
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@ -51,6 +51,7 @@ class BuildHandler {
_context.statManager().createRateStat("tunnel.dropLoadProactive", "What the estimated queue time was when we dropped an inbound request (period is num pending)", "Tunnels", new long[] { 60*1000, 10*60*1000 });
_context.statManager().createRateStat("tunnel.dropLoadProactiveAbort", "How often we would have proactively dropped a request, but allowed it through?", "Tunnels", new long[] { 60*1000, 10*60*1000 });
_context.statManager().createRateStat("tunnel.handleRemaining", "How many pending inbound requests were left on the queue after one pass?", "Tunnels", new long[] { 60*1000, 10*60*1000 });
_context.statManager().createRateStat("tunnel.buildReplyTooSlow", "How often a tunnel build reply came back after we had given up waiting for it?", "Tunnels", new long[] { 60*1000, 10*60*1000 });
_context.statManager().createRateStat("tunnel.receiveRejectionProbabalistic", "How often we are rejected probabalistically?", "Tunnels", new long[] { 10*60*1000l, 60*60*1000l, 24*60*60*1000l });
_context.statManager().createRateStat("tunnel.receiveRejectionTransient", "How often we are rejected due to transient overload?", "Tunnels", new long[] { 10*60*1000l, 60*60*1000l, 24*60*60*1000l });
@ -85,7 +86,7 @@ class BuildHandler {
handled.add(_inboundBuildMessages.remove(_inboundBuildMessages.size()-1));
} else {
// drop any expired messages
long dropBefore = System.currentTimeMillis() - BuildRequestor.REQUEST_TIMEOUT;
long dropBefore = System.currentTimeMillis() - (BuildRequestor.REQUEST_TIMEOUT*2);
do {
BuildMessageState state = (BuildMessageState)_inboundBuildMessages.get(0);
if (state.recvTime <= dropBefore) {
@ -193,6 +194,7 @@ class BuildHandler {
_log.warn("The reply " + replyMessageId + " did not match any pending tunnels");
if (_log.shouldLog(Log.DEBUG))
_log.debug("Pending tunnels: " + buf.toString());
_context.statManager().addRateData("tunnel.buildReplyTooSlow", 1, 0);
} else {
handleReply(state.msg, cfg, System.currentTimeMillis()-state.recvTime);
}
@ -276,7 +278,7 @@ class BuildHandler {
if (_log.shouldLog(Log.DEBUG))
_log.debug(state.msg.getUniqueId() + ": handling request after " + timeSinceReceived);
if (timeSinceReceived > BuildRequestor.REQUEST_TIMEOUT) {
if (timeSinceReceived > (BuildRequestor.REQUEST_TIMEOUT*2)) {
// don't even bother, since we are so overloaded locally
if (_log.shouldLog(Log.WARN))
_log.warn("Not even trying to handle/decrypt the request " + state.msg.getUniqueId()
@ -415,7 +417,7 @@ class BuildHandler {
int proactiveDrops = countProactiveDrops();
long recvDelay = System.currentTimeMillis()-state.recvTime;
if (response == 0) {
float pDrop = recvDelay / (BuildRequestor.REQUEST_TIMEOUT);
float pDrop = recvDelay / (BuildRequestor.REQUEST_TIMEOUT*2);
pDrop = (float)Math.pow(pDrop, 16);
if (_context.random().nextFloat() < pDrop) { // || (proactiveDrops > MAX_PROACTIVE_DROPS) ) ) {
_context.statManager().addRateData("tunnel.rejectOverloaded", recvDelay, proactiveDrops);
@ -598,7 +600,7 @@ class BuildHandler {
for (int i = 0; i < _inboundBuildMessages.size(); i++) {
BuildMessageState cur = (BuildMessageState)_inboundBuildMessages.get(i);
long age = System.currentTimeMillis() - cur.recvTime;
if (age >= BuildRequestor.REQUEST_TIMEOUT) {
if (age >= BuildRequestor.REQUEST_TIMEOUT*2) {
_inboundBuildMessages.remove(i);
i--;
dropped++;
@ -610,7 +612,7 @@ class BuildHandler {
_context.statManager().addRateData("tunnel.dropLoadBacklog", _inboundBuildMessages.size(), _inboundBuildMessages.size());
} else {
int queueTime = estimateQueueTime(_inboundBuildMessages.size());
float pDrop = queueTime/((float)BuildRequestor.REQUEST_TIMEOUT);
float pDrop = queueTime/((float)BuildRequestor.REQUEST_TIMEOUT*2);
pDrop = (float)Math.pow(pDrop, 16); // steeeep
float f = _context.random().nextFloat();
if ( (pDrop > f) && (allowProactiveDrop()) ) {

2
router/java/src/net/i2p/router/tunnel/pool/BuildRequestor.java
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@ -22,7 +22,7 @@ class BuildRequestor {
ORDER.add(new Integer(i));
}
private static final int PRIORITY = 500;
static final int REQUEST_TIMEOUT = 30*1000;
static final int REQUEST_TIMEOUT = 15*1000;
private static boolean usePairedTunnels(RouterContext ctx) {
String val = ctx.getProperty("router.usePairedTunnels");