On Monday, May 26, 2014, Vivek Pandey <vivek.pandey(a)pinelabs.com> wrote:
It is good to know that activity in java-apns is picking up and also that
you are looking at pushy.
I did a few tests which added installations to UPS with a concurrency of
4-8 threads. I was using Postgres 9.3 and UPS 0.10.3 war
I noticed that response slowed down considerably after some time with high
CPU usage and continued to get worse. After doing some profiling, I found
that bulk of CPU cycles are being taken by
org.postgresql.core.VisibleBufferedInputStream.readMore. The entire thread
stack is attached. Also postgres continuously flagged
select installati0_.variantID as variant10_0_0_, installati0_.id as
id1_3_0_, installati0_.id as id1_3_1_, installati0_.alias as alias2_3_1_,
installati0_.deviceToken as deviceTo3_3_1_, installati0_.deviceType as
deviceTy4_3_1_, installati0_.enabled as enabled5_3_1_,
installati0_.operatingSystem as operatin6_3_1_, installati0_.osVersion as
osVersio7_3_1_, installati0_.platform as platform8_3_1_,
installati0_.simplePushEndpoint as simplePu9_3_1_ from InstallationImpl
installati0_ where installati0_.variantID=$1
as the slow query. I am pretty sure that eager collection
AbstractVariant.installations is the root cause of the problem.
Please let me know if you need any more information.
*Sent:* Wednesday, May 21, 2014 5:55 PM
Developer Mailing List
*Subject:* Re: [aerogear-dev] UPS Production worthiness
On Wed, May 21, 2014 at 2:07 PM, Vivek Pandey <vivek.pandey(a)pinelabs.com>
Thanks for your reply.
While we have not faced any issues in using UPS in our limited testing, I
often see info stacktraces in ups logs
2014-05-16 10:19:20,032 INFO
[com.notnoop.apns.internal.ApnsConnectionImpl] (Thread-118) Exception while
waiting for error code: java.net.SocketException: Socket closed
at java.net.SocketInputStream.socketRead0(Native Method)
These stacktraces coupled with low dev activity of noop/java-apns project
are disconcerting to me.
the stack-trace is no harm - it's only happening w/ doing a monitoring of
the thread (that's what we currently do, when setting up ApnsService - I
thought about explicitly disable that)
The activity of the underlying java-apns is very low, yes! However @froh42
is getting back:
There will be a new release in the near future; @froh42 asked me if I
could help with pushing the bits to maven central
That said, I recently started looking at pushy:
I also sent a PR that would allow us to feed pushy w/ our certificate from
This message may contain privileged and confidential information and is
solely for the use of intended recipient. The views expressed in this email
are those of the sender and not of Pine Labs. The recipient should check
this email and attachments for the presence of viruses / malwares etc. Pine
Labs accepts no liability for any damage caused by any virus transmitted by
this email. Pine Labs may monitor and record all emails.