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The queue lost message sometimes #115

Closed GoogleCodeExporter closed 8 years ago

GoogleCodeExporter commented 8 years ago 
What steps will reproduce the problem?
1.User push queue with two thread, the code is 

 PushQueue queue = Push.queue(keystore, password, production, MAX_POOL_SIZE);
 queue.start();

2. when send message,use the code
 queue.add(payload, token);

3.most time it work fine, but some time it will lost some message.

What is the expected output? What do you see instead?
 some message was lost.

What version of the product are you using? On what operating system?
2.2,amazon linux

From the debug log, i fond for some message it was not send out.After adding 
sound it will begun to add next message. The current message is not send. This 
will recover after several message.

Below is the log

012-04-12 07:14:29,332 DEBUG [javapns.notification.Payload] - Adding custom 
Dictionary [msg_bcast] = [****************************]
012-04-12 07:14:29,332 DEBUG [javapns.notification.Payload] - Adding badge [4]
012-04-12 07:14:29,332 DEBUG [javapns.notification.Payload] - Adding sound 
[default]
012-04-12 07:15:06,207 DEBUG [javapns.notification.Payload] - Adding custom 
Dictionary [msg_bcast] = [****************************]
012-04-12 07:15:06,207 DEBUG [javapns.notification.Payload] - Adding badge [5]
012-04-12 07:15:06,207 DEBUG [javapns.notification.Payload] - Adding sound 
[default]
012-04-12 07:15:23,666 DEBUG [javapns.notification.Payload] - Adding custom 
Dictionary [msg_bcast] = [****************************]
012-04-12 07:15:23,666 DEBUG [javapns.notification.Payload] - Adding badge [6]
012-04-12 07:15:23,666 DEBUG [javapns.notification.Payload] - Adding sound 
[default]
012-04-12 07:15:37,712 DEBUG [javapns.notification.Payload] - Adding custom 
Dictionary [msg_bcast] = [****************************]
012-04-12 07:15:37,712 DEBUG [javapns.notification.Payload] - Adding badge [7]
012-04-12 07:15:37,712 DEBUG [javapns.notification.Payload] - Adding sound 
[default]

012-04-12 07:16:20,771 DEBUG [javapns.notification.Payload] - Adding badge [1]
012-04-12 07:16:20,771 DEBUG [javapns.notification.Payload] - Adding sound 
[default]
012-04-12 07:16:20,772 DEBUG [javapns.notification.PushNotificationManager] - 
Building Raw message from deviceToken and payload
012-04-12 07:16:20,772 DEBUG [javapns.notification.PushNotificationManager] - 
Built raw message ID 16777260 of total length 191
012-04-12 07:16:20,772 DEBUG [javapns.notification.PushNotificationManager] - 
Attempting to send notification: 
{"aps":{"sound":"default","badge":1},"msg_bcast":"************************"}
012-04-12 07:16:20,772 DEBUG [javapns.notification.PushNotificationManager] - 
to device:*********************
012-04-12 07:16:20,772 DEBUG [javapns.notification.PushNotificationManager] - 
Flushing
012-04-12 07:16:20,772 DEBUG [javapns.notification.PushNotificationManager] - 
At this point, the entire 191-bytes message has been streamed out successfully 
through the SSL connection

Original issue reported on code.google.com by minkon1...@gmail.com on 12 Apr 2012 at 8:11

GoogleCodeExporter commented 8 years ago 
Could you please be more specific about what you mean by "lost messages"?  Do 
you mean that the messages added to the queue are never sent by the library, or 
that the library does send the messages but they never reach the devices?

Original comment by sype...@gmail.com on 13 Apr 2012 at 5:25

GoogleCodeExporter commented 8 years ago 
the messages added to the queue but never reach the devices.

I fixed this problem by close the connection(to apn server) after idle for more 
then 5 minutes.  I found when the connection idle for a long time. the new 
message maybe can't reach the devices.

Original comment by minkon1...@gmail.com on 17 Apr 2012 at 6:42

GoogleCodeExporter commented 8 years ago 
I am unable to reproduce the issue.  Could you please attach a stack trace dump 
for when the queue has messages to deliver but apparently is not sending them?  
This will help understand what the library is doing...  Thank you!

Original comment by sype...@gmail.com on 21 Apr 2012 at 4:47

GoogleCodeExporter commented 8 years ago 
I have the same problem (I am using a Queue. Sometimes my messages are lost 
with no explanation, and everything seems to be working fine.

Original comment by oli...@crowdplayce.com on 26 Apr 2012 at 7:50

GoogleCodeExporter commented 8 years ago 
Unfortunately, without more details, I cannot reproduce the issue.  Could you 
please attach a stack trace dump for when the queue has messages to deliver but 
apparently is not sending them?

Original comment by sype...@gmail.com on 26 Apr 2012 at 9:47

GoogleCodeExporter commented 8 years ago 
Issue 118 has been merged into this issue.

Original comment by sype...@gmail.com on 26 Apr 2012 at 9:49

GoogleCodeExporter commented 8 years ago

Original comment by sype...@gmail.com on 2 May 2012 at 1:44

GoogleCodeExporter commented 8 years ago 
I have the exact same problem. The problem is NOT that the message gets stuck 
in the queue. The queue always send the message according to the log. That is, 
I get

DEBUG [javapns.notification.PushNotificationManager] - At this point, the 
entire 191-bytes message has been streamed out successfully through the SSL 
connection

but the message never reaches the device. No errors ever show up in the log.

This seems to happen after the connection has been idle for some time.
A restart of the queue fixes the problem.

If I do

PushedNotifications notifications = queue.getPushedNotifications();
Iterator<PushedNotification> iter = notifications.iterator();
    while(iter.hasNext())
    {
    PushedNotification pn = iter.next();
    log.debug("success: " + pn.isSuccessful());
    log.debug("PN exception: ", pn.getException());
    }

every PushedNotification gets success: true and no exceptions.

Original comment by fredrik....@gmail.com on 3 May 2012 at 8:06

GoogleCodeExporter commented 8 years ago 
#8 thats exactly what happens to me. The connection becomes idle and it stops 
working

Original comment by oli...@crowdplayce.com on 3 May 2012 at 8:42

GoogleCodeExporter commented 8 years ago 
Once I see this issue (where the message is reported delivered but never 
actually makes it) I get the following for successive notifications:
--
2012-05-07 08:14:04 PushNotificationManager [DEBUG] Building Raw message from 
deviceToken and payload
2012-05-07 08:14:04 PushNotificationManager [DEBUG] Built raw message ID 
16777262 of total length 171
2012-05-07 08:14:04 PushNotificationManager [DEBUG] Attempting to send 
notification: <PAYLOAD>
2012-05-07 08:14:04 PushNotificationManager [DEBUG]   to device: <TOKENID>
--
..and that's the last I hear from that push. No failures, nothing.

Original comment by jcost...@gmail.com on 7 May 2012 at 8:55

GoogleCodeExporter commented 8 years ago 
As I asked a few times in this thread, a stack trace dump is needed to 
investigate the issue.  Otherwise nothing is being done on this issue.

Original comment by sype...@gmail.com on 7 May 2012 at 1:29

GoogleCodeExporter commented 8 years ago 
hi sype!

i'm not sure i understand what you want me to provide. could you be more 
specific?
the messages do get sent so the queue is empty and there are no error stack 
traces.
in fact, i get a positive response saying that notification was sent on first 
attempt.

Original comment by fredrik....@gmail.com on 15 May 2012 at 8:15

GoogleCodeExporter commented 8 years ago 
a stack trace dump, which is a basic debugging operation for capturing the 
state of all threads in a Java program...  
(http://java.sun.com/developer/technicalArticles/Programming/Stacktrace/)

Original comment by sype...@gmail.com on 15 May 2012 at 8:41

GoogleCodeExporter commented 8 years ago 
i have the exact same problem on the same server (amazon linux). i am also 
looking for a solution. 
@sype: i would have provided the dump stacktrace you ask if you could tell us 
at what moment you want it (before adding into queue, during the push -i don't 
know what to look for-, after the push) ??

Original comment by hguve...@gmail.com on 25 May 2012 at 12:24

GoogleCodeExporter commented 8 years ago 
I have found something about the dropping connections regarding servers on 
Amazon;

https://forums.aws.amazon.com/thread.jspa?threadID=33427&start=0&tstart=0

Long story short: We cannot use PushQueue as it is implemented at the moment. 
It needs to send heartbeat data if it is inactive for less then every 60 
seconds.

Original comment by hguve...@gmail.com on 25 May 2012 at 12:46

GoogleCodeExporter commented 8 years ago 
i have looked into this connection drop issue and want to confirm it on my 
server Amazon Linux on micro instance EC2 ... this is the result

[ec2-user@XXX ~]$ lsof | grep TCP
java      14893 ec2-user  375u     IPv6             375102      0t0    TCP 
*:8181 (LISTEN)
java      14893 ec2-user  376u     IPv6             375103      0t0    TCP 
*:webcache (LISTEN)
java      14893 ec2-user  381u     IPv6             375107      0t0    TCP 
*:appserv-http (LISTEN)
java      14893 ec2-user  385u     IPv6             375109      0t0    TCP 
*:lrs-paging (LISTEN)
java      14893 ec2-user  389u     IPv6             375111      0t0    TCP 
*:imqbrokerd (LISTEN)
java      14893 ec2-user  462u     IPv6             478553      0t0    TCP 
XXX.compute-1.internal:50020->st11p01st-interface003-bz.push.apple.com:2195 
(CLOSE_WAIT)
java      14893 ec2-user  465u     IPv6             478554      0t0    TCP 
XXX.compute-1.internal:50021->st11p01st-interface003-bz.push.apple.com:2195 
(CLOSE_WAIT)
java      14893 ec2-user  468u     IPv6             376504      0t0    TCP 
*:sun-as-jmxrmi (LISTEN)
java      14893 ec2-user  500u     IPv6             442333      0t0    TCP 
XXX.compute-1.internal:52537->st11p01st-interface010-bz.push.apple.com:2195 
(CLOSE_WAIT)
java      14893 ec2-user  503u     IPv6             442347      0t0    TCP 
XXX.compute-1.internal:36621->st11p01st-interface009-bz.push.apple.com:2195 
(CLOSE_WAIT)
java      14893 ec2-user  519u     IPv6             455136      0t0    TCP 
XXX.compute-1.internal:40070->st11p01st-interface009-bz.push.apple.com:2195 
(CLOSE_WAIT)
java      14893 ec2-user  520u     IPv6             477479      0t0    TCP 
XXX.compute-1.internal:42686->st11p01st-interface001-bz.push.apple.com:2195 
(CLOSE_WAIT)
java      14893 ec2-user  521u     IPv6             477480      0t0    TCP 
XXX.compute-1.internal:42687->st11p01st-interface001-bz.push.apple.com:2195 
(CLOSE_WAIT)
java      14893 ec2-user  522u     IPv6             477495      0t0    TCP 
XXX.compute-1.internal:51542->nk11p01st-interface003-bz.push.apple.com:2195 
(CLOSE_WAIT)
java      14893 ec2-user  527u     IPv6             455120      0t0    TCP 
XXX.compute-1.internal:34270->st11p01st-interface015-bz.push.apple.com:2195 
(CLOSE_WAIT)
java      14893 ec2-user  530u     IPv6             455121      0t0    TCP 
XXX.compute-1.internal:34271->st11p01st-interface015-bz.push.apple.com:2195 
(CLOSE_WAIT)
java      14893 ec2-user  534u     IPv6             455135      0t0    TCP 
XXX.compute.compute-1.internal:40069->st11p01st-interface009-bz.push.apple.com:2
195 (CLOSE_WAIT)
java      14893 ec2-user  535u     IPv6             478594      0t0    TCP 
XXX.compute-1.internal:34723->st11p01st-interface015-bz.push.apple.com:2195 
(CLOSE_WAIT)
java      14893 ec2-user  543u     IPv6             478673      0t0    TCP 
XXX.compute-1.internal:57461->nk11p01st-interface014-bz.push.apple.com:2195 
(CLOSE_WAIT)
java      14893 ec2-user  544u     IPv6             478686      0t0    TCP 
XXX.compute-1.internal:33197->st11p01st-interface012-bz.push.apple.com:2195 
(CLOSE_WAIT)

Original comment by hguve...@gmail.com on 25 May 2012 at 1:14

GoogleCodeExporter commented 8 years ago 
this is really irritating to say that but the Queue implementation doesn't 
provide production requirements for any project... 

this is the bottom line issue of the implementation of flushing data into 
CLOSE_WAIT connection; 
http://code.google.com/p/javapns/source/browse/tags/2.2/src/javapns/notification
/PushNotificationManager.java#416

and this is the issue has been talked on stackoverflow 
http://stackoverflow.com/questions/2028620/java-sockets-and-dropped-connections

the connection has to be closed and open on every push notification is being 
released.

I hoped this can help anyone who suffered with this...

Original comment by hguve...@gmail.com on 25 May 2012 at 1:38

GoogleCodeExporter commented 8 years ago 
[deleted comment]
GoogleCodeExporter commented 8 years ago 
the stackoverflow link is about an issue for apns on github... different 
projects same issue...

Original comment by hguve...@gmail.com on 25 May 2012 at 1:41

GoogleCodeExporter commented 8 years ago 
My server just stopped sending.. Here is stack trace (parts of it).. No 
deadlocks

Thread 1207: (state = BLOCKED)
 - java.lang.Thread.sleep(long) @bci=0 (Compiled frame; information may be imprecise)
 - javapns.notification.transmission.NotificationThread.runQueue() @bci=192, line=279 (Compiled frame)
 - javapns.notification.transmission.NotificationThread.run() @bci=44, line=202 (Interpreted frame)
 - java.lang.Thread.run() @bci=11, line=662 (Interpreted frame)

Thread 1206: (state = BLOCKED)
 - java.lang.Thread.sleep(long) @bci=0 (Compiled frame; information may be imprecise)
 - javapns.notification.transmission.NotificationThread.runQueue() @bci=192, line=279 (Compiled frame)
 - javapns.notification.transmission.NotificationThread.run() @bci=44, line=202 (Interpreted frame)
 - java.lang.Thread.run() @bci=11, line=662 (Interpreted frame)

Thread 28448: (state = BLOCKED)
 - java.lang.Thread.sleep(long) @bci=0 (Compiled frame; information may be imprecise)
 - org.apache.tomcat.util.net.JIoEndpoint$AsyncTimeout.run() @bci=13, line=141 (Compiled frame)
 - java.lang.Thread.run() @bci=11, line=662 (Interpreted frame)

Thread 28447: (state = IN_NATIVE)
 - java.net.PlainSocketImpl.socketAccept(java.net.SocketImpl) @bci=0 (Interpreted frame)
 - java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=7, line=408 (Interpreted frame)
 - java.net.ServerSocket.implAccept(java.net.Socket) @bci=60, line=462 (Interpreted frame)
 - java.net.ServerSocket.accept() @bci=48, line=430 (Interpreted frame)
 - org.apache.tomcat.util.net.DefaultServerSocketFactory.acceptSocket(java.net.ServerSocket) @bci=1, line=59 (Compiled frame)
 - org.apache.tomcat.util.net.JIoEndpoint$Acceptor.run() @bci=81, line=210 (Compiled frame)
 - java.lang.Thread.run() @bci=11, line=662 (Interpreted frame)

Thread 28446: (state = BLOCKED)
 - java.lang.Thread.sleep(long) @bci=0 (Compiled frame; information may be imprecise)
 - org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run() @bci=22, line=1378 (Compiled frame)
 - java.lang.Thread.run() @bci=11, line=662 (Interpreted frame)

Thread 28441: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - sun.misc.GC$Daemon.run() @bci=51, line=100 (Interpreted frame)

Thread 28436: (state = BLOCKED)

Thread 28435: (state = BLOCKED)

Thread 28434: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.ref.ReferenceQueue.remove(long) @bci=44, line=118 (Interpreted frame)
 - java.lang.ref.ReferenceQueue.remove() @bci=2, line=134 (Compiled frame)
 - java.lang.ref.Finalizer$FinalizerThread.run() @bci=3, line=159 (Compiled frame)

Thread 28433: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2, line=485 (Compiled frame)
 - java.lang.ref.Reference$ReferenceHandler.run() @bci=46, line=116 (Compiled frame)

Thread 28426: (state = IN_NATIVE)
 - java.net.PlainSocketImpl.socketAccept(java.net.SocketImpl) @bci=0 (Interpreted frame)
 - java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=7, line=408 (Interpreted frame)
 - java.net.ServerSocket.implAccept(java.net.Socket) @bci=60, line=462 (Interpreted frame)
 - java.net.ServerSocket.accept() @bci=48, line=430 (Interpreted frame)
 - org.apache.catalina.core.StandardServer.await() @bci=175, line=447 (Interpreted frame)
 - org.apache.catalina.startup.Catalina.await() @bci=4, line=709 (Interpreted frame)
 - org.apache.catalina.startup.Catalina.start() @bci=186, line=654 (Interpreted frame)
 - sun.reflect.NativeMethodAccessorImpl.invoke0(java.lang.reflect.Method, java.lang.Object, java.lang.Object[]) @bci=0 (Interpreted frame)
 - sun.reflect.NativeMethodAccessorImpl.invoke(java.lang.Object, java.lang.Object[]) @bci=87, line=39 (Interpreted frame)
 - sun.reflect.DelegatingMethodAccessorImpl.invoke(java.lang.Object, java.lang.Object[]) @bci=6, line=25 (Interpreted frame)
 - java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[]) @bci=161, line=597 (Interpreted frame)
 - org.apache.catalina.startup.Bootstrap.start() @bci=37, line=322 (Interpreted frame)
 - org.apache.catalina.startup.Bootstrap.main(java.lang.String[]) @bci=135, line=450 (Interpreted frame)

Original comment by oli...@crowdplayce.com on 20 Jun 2012 at 2:37

GoogleCodeExporter commented 8 years ago 
My little 5cents:
I have the same problems on production servers. The problems typically arise 
after a given (long) uptime of the server. 

My analysis:
There is probably on the datacenter a network equipment that silently close the 
socket between my server and the apple servers.
Because there is no ack on the push message sent to apple servers, it takes a 
reda on the socket or a close on the socket for the javapns queue to discover 
that the socket is actually closed. Alas, the messages is already sent and 
confirmed sent (xxx bytes has been flushed blablabla).
This is confirmed because, while reading the logs while sending various 
messages, the loss never happens when the server connection is detected as down 
and renewed.

In order to solve this issue I have implemented a "reopen the socket for each 
messages" policy (however this must slow down the queue to a crawl, I don't 
know, I have no load).

        AppleNotificationServer server = new AppleNotificationServerBasicImpl(config.getKeystore(), config.getPassword(), ConnectionToAppleServer.KEYSTORE_TYPE_JKS , isProduction());
        List<NotificationThread> allThreads = new ArrayList<>();
        for (int i=0;i<config.getNumberOfThreads();i++) {
            PushNotificationManagerWithSocketReopenEachTime notifManager = new PushNotificationManagerWithSocketReopenEachTime(server);
            NotificationThread thread = new NotificationThread(null,notifManager,server);
            allThreads.add(thread);
        }
        queue = new NotificationThreads(server, null, allThreads);
config.isProduction(), config.getNumberOfThreads());
        queue.start();
    }

    public static class PushNotificationManagerWithSocketReopenEachTime extends PushNotificationManager {

        AppleNotificationServer server;

        public PushNotificationManagerWithSocketReopenEachTime(AppleNotificationServer server) {
            super();
            this.server=server;
        }

        @Override
        public PushedNotification sendNotification(Device device, Payload payload, boolean closeAfter, int identifier) throws CommunicationException {
            try {
                restartConnection(server);
            } catch (KeystoreException e) {
                throw new FizRuntimeException("cannot connect to apns server with keystore",e);
            }
            return super.sendNotification(device, payload, closeAfter, identifier);
        }

    }

Original comment by jerome.b...@gmail.com on 20 Jun 2012 at 2:47

GoogleCodeExporter commented 8 years ago 
Hey Jerome

Cool solution.. How about some time policy. Because it seems that this only 
happens when a connection is unused. So in order to preserve performance we 
reopen unused connections?. Opening a connections takes several seconds. I 
discovered that when I tried todo the simple one connection pr message

I have quite a bit of traffic and the connections stopped working one by one 
until I got no push notifications sent at all. But I need the queue in order to 
be able to scale my solution.

Btw Jerome... Whats this. I could not figure out where it belonged and there 
was a } too much?
config.isProduction(), config.getNumberOfThreads());

public class PushNotificationManagerWithSocketReopenEachTime extends 
javapns.notification.PushNotificationManager {

     AppleNotificationServer server;
     public static final long unusedConnectionToleranceMs = 5000;
     private long lastUsage = 0;

     public PushNotificationManagerWithSocketReopenEachTime(AppleNotificationServer server) {
             super();
             this.server=server;
     }

     @Override
     public PushedNotification sendNotification(Device device, Payload payload, boolean closeAfter, int identifier) throws CommunicationException {
            if(System.currentTimeMillis() - lastUsage  > unusedConnectionToleranceMs) { 
                try {

                            restartConnection(server);
                 } catch (KeystoreException e) {
                         throw new RuntimeException("cannot connect to apns server with keystore",e);
                 }
            }
             lastUsage = System.currentTimeMillis();
             return super.sendNotification(device, payload, closeAfter, identifier);
     }
}

Original comment by oli...@crowdplayce.com on 21 Jun 2012 at 6:29

GoogleCodeExporter commented 8 years ago

Original comment by sype...@gmail.com on 2 Jul 2012 at 10:33

GoogleCodeExporter commented 8 years ago 
I have the same problem and I'm not sure when it would be neccesary to reopen a 
connection. To reopen connections it's a very expensive operation and depending 
the kind of the message sent, it's possible the time spent were unacceptable. 

I don't need to send too many messages per hour, but I do need they arrive very 
fast to the device.

I'll try minkon1's solution.

Original comment by manusd...@gmail.com on 31 Aug 2012 at 10:32

GoogleCodeExporter commented 8 years ago 
[deleted comment]
GoogleCodeExporter commented 8 years ago 
Any update on this ? 

We are facing similar issue in production too. Do let us if solution provided 
in threads, fixes the issue

Original comment by dksid...@gmail.com on 1 Mar 2013 at 1:11

GoogleCodeExporter commented 8 years ago 
My fix worked, stable for 6 months

Original comment by olive...@gmail.com on 1 Mar 2013 at 3:13

GoogleCodeExporter commented 8 years ago 
I have the same problem and I'm not sure when it would be success to reopen a 
connection.Because I found that some time the new message still can't reach the 
devices.

Original comment by szf881...@163.com on 28 Mar 2013 at 9:14

GoogleCodeExporter commented 8 years ago 
2013-03-28 19:24:05,529 DEBUG javapns.communication.ConnectionToAppleServer  - 
Creating SSLSocketFactory
 2013-03-28 19:24:05,589 DEBUG javapns.communication.ConnectionToAppleServer  - Creating SSLSocket to gateway.sandbox.push.apple.com:2195
 2013-03-28 19:24:06,110 DEBUG javapns.notification.PushNotificationManager  - Initialized Connection to Host: [gateway.sandbox.push.apple.com] Port: [2195]: 1a93f38[SSL_NULL_WITH_NULL_NULL: Socket[addr=gateway.sandbox.push.apple.com/17.149.34.65,port=2195,localport=40485]]
 2013-03-28 19:24:06,160 DEBUG javapns.notification.PushNotificationManager  - Building Raw message from deviceToken and payload
 2013-03-28 19:24:06,170 DEBUG javapns.notification.PushNotificationManager  - Built raw message ID 1 of total length 97
 2013-03-28 19:24:06,170 DEBUG javapns.notification.PushNotificationManager  - Attempting to send notification: {"aps":{"alert":"xinfeng000000","badge":1},"type":1}
 2013-03-28 19:24:06,170 DEBUG javapns.notification.PushNotificationManager  -   to device: 42e6dce2612ab5f154e6feecc364a7b7415f7ff0e749aadd6e5cecd5f9b32774
 2013-03-28 19:24:14,882 DEBUG javapns.notification.PushNotificationManager  - Flushing
 2013-03-28 19:24:14,882 DEBUG javapns.notification.PushNotificationManager  - At this point, the entire 97/172.18.10.73 gateway.sandbox.push.apple.com/17.149.34.65-bytes message has been streamed out successfully through the SSL connection
 2013-03-28 19:24:14,882 DEBUG javapns.notification.PushNotificationManager  - Notification sent on first attempt

Original comment by szf881...@163.com on 28 Mar 2013 at 11:27

GoogleCodeExporter commented 8 years ago 
Implemented feature in comment 22 in r391.

By default, inactivity of 60 seconds will cause a connection restart before the 
next payload is sent.

Inactivity delay can be changed via 
PushNotificationManager.setRestartConnectionAfterInactivity(ms)

Original comment by sype...@gmail.com on 30 Sep 2014 at 4:00