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Try to alleviate connection-limit network collapse:

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* Transport:
      - Lower min NTCP idle time to 3m (was 5m)
      - Increase SSU conn limit by 33%
    * Watchdog:
      - Defang him again
This commit is contained in:
zzz
2009-06-06 15:14:05 +00:00
parent 7e651d53a0
commit 4c4b3b776c
3 changed files with 8 additions and 4 deletions
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6
router/java/src/net/i2p/router/RouterWatchdog.java
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@ -49,8 +49,8 @@ class RouterWatchdog implements Runnable {
}
private boolean shutdownOnHang() {
// prop default true
if (!Boolean.valueOf(_context.getProperty("watchdog.haltOnHang", "true")).booleanValue())
// prop default false
if (!Boolean.valueOf(_context.getProperty("watchdog.haltOnHang")).booleanValue())
return false;
// Client manager starts complaining after 10 minutes, and we run every minute,
@ -94,7 +94,7 @@ class RouterWatchdog implements Runnable {
long used = Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory();
_log.error("Memory: " + DataHelper.formatSize(used) + '/' + DataHelper.formatSize(max));
if (_consecutiveErrors == 1) {
_log.log(Log.CRIT, "Router appears hung! Will restart in 20 minutes if it doesn't fix itself");
_log.log(Log.CRIT, "Router appears hung, or there is severe network congestion. Watchdog starts barking!");
// This might work on linux...
// It won't on windows, and we can't call i2prouter.bat either, it does something
// completely different...

3
router/java/src/net/i2p/router/transport/TransportImpl.java
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@ -106,6 +106,9 @@ public abstract class TransportImpl implements Transport {
! ((FloodfillNetworkDatabaseFacade)_context.netDb()).floodfillEnabled())
def = MAX_CONNECTION_FACTOR * (1 + bw - Router.CAPABILITY_BW12);
}
// increase limit for SSU, for now
if (style.equals("udp"))
def = def * 4 / 3;
return _context.getProperty("i2np." + style + ".maxConnections", def);
}

3
router/java/src/net/i2p/router/transport/ntcp/EventPumper.java
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@ -51,7 +51,8 @@ public class EventPumper implements Runnable {
* the time to iterate across them to check a few flags shouldn't be a problem.
*/
private static final long FAILSAFE_ITERATION_FREQ = 2*1000l;
private static final long MIN_EXPIRE_IDLE_TIME = 5*60*1000l;
/** tunnel test is every 30-60s, so this should be longer than, say, 3*45s to allow for drops */
private static final long MIN_EXPIRE_IDLE_TIME = 3*60*1000l;
private static final long MAX_EXPIRE_IDLE_TIME = 15*60*1000l;
public EventPumper(RouterContext ctx, NTCPTransport transport) {