Re: Connector: sessionCreated is not called (unstable behavior)
Just a question:
why does Connector.run() thread exit when nHandles==0? Why not to
continue executing select() in the loop infinitely?
Thanks,
Victor
Victor wrote:
Unfortunately, even with the patch in Connector and Processor, the
problem is reproduced randomly, most of time everything works, but
sometimes I see that sessionCreated is not called. But if I start a new
connection, this old pending connection (for which I am waiting for
sessionCreated callback) is completed instantly, so I get sessionCreated.
Victor N
Victor wrote:
I have added a similar fix in
AbstractPollingIoProcessor.Processor.run() - nSessions is now
initialized inside the loop, on each iteration.
It seems to work now, I can not reproduce the bug, but I will continue
testing.
Not sure whether this patch is adequate or nor. Any comments?
Victor N
Victor wrote:
I tried to play with my fix - from the first glance, it seemed to
work - connection was established, sessionCreated was called,
but at the second attempt the problem reproduced.
Any ideas what is wrong here?
Thanks,
Victor N
Victor wrote:
Hello,
I have a problem with NIO connector in mina 2.0 M4 when handling
many simultaneous connections - sometimes after calling connect() I
do not receive sessionCreated() callback.
I am trying to prepare a small test, but I can not reproduce the
problem in this test yet, so I tried to investigate mina sources
myself using out working system.
I can see that a new Channel is always created, channel.connect() is
called, SYN, SYN-ACK, ACK are sent, then I see that
AbstractPollingIoConnector.Connector registers the new channel in
Selector, but after that AbstractPollingIoConnector.Connector is
stopped because nHandles=0 and connectQueue is already empty (no
more connection requests).
I mean the following code in
AbstractPollingIoConnector.Connector.run():
if (nHandles == 0) {
synchronized (lock) {
if (connectQueue.isEmpty()) {
connector = null;
break;
}
}
}
After that, 'select' is not called on the Selector anymore for this
session.
One reason of this behavior (which I can assume now) is 'nHandles'
variable initialized outside of 'while' loop. Maybe, it should be
initialized on each iteration? So every time we calculate the number
of new sessions, canceled sessions, etc.
In my situation, nHandles=-1, then, after registering the new
session, nHandles becomes 0 and the Connector.run() is stopped.
Victor N
Preon - Binary data encoding framework
Folks, Was browsing through dzone and came across this framework Preon. From its website Preon is a framework for dealing with binary encoded data. It intends to be to binary encoded data what Hibernate is to relational databases, and JAXB to XML Thought would be worth bringing it to notice of our dev community. Some of us might be interested in it. May be we can add to our watch list and can work on building a codec, if we find it useful. wdyt? -- thanks ashish Blog: http://www.ashishpaliwal.com/blog My Photo Galleries: http://www.pbase.com/ashishpaliwal
Re: Preon - Binary data encoding framework
Ashish wrote: Folks, Was browsing through dzone and came across this framework Preon. From its website Preon is a framework for dealing with binary encoded data. It intends to be to binary encoded data what Hibernate is to relational databases, and JAXB to XML Thought would be worth bringing it to notice of our dev community. Some of us might be interested in it. May be we can add to our watch list and can work on building a codec, if we find it useful. wdyt? Could worth some time. Remember we still have to evaluate Tomasz Protocol Buffer code... -- -- cordialement, regards, Emmanuel Lécharny www.iktek.com directory.apache.org
Re: Preon - Binary data encoding framework
Anything along these lines if functional could be very useful for various protocols. Would be nice to be able to plugin some ebnf from an RFC and just have a nice codec generated. Dreaming! Alex On Tue, Mar 3, 2009 at 10:06 AM, Emmanuel Lecharny elecha...@apache.orgwrote: Ashish wrote: Folks, Was browsing through dzone and came across this framework Preon. From its website Preon is a framework for dealing with binary encoded data. It intends to be to binary encoded data what Hibernate is to relational databases, and JAXB to XML Thought would be worth bringing it to notice of our dev community. Some of us might be interested in it. May be we can add to our watch list and can work on building a codec, if we find it useful. wdyt? Could worth some time. Remember we still have to evaluate Tomasz Protocol Buffer code... -- -- cordialement, regards, Emmanuel Lécharny www.iktek.com directory.apache.org
Re: AsyncWeb jars incomplete
I was one of the people who were involved in bringing AHC over from the Geronimo sandbox (where it was first developed) to under asyncweb. Originally it was based on mina 1.1.x as at that time mina 2.0 was still in its active development. We did the bare minimum to make it compile against mina 2.0 (but not necessarily all the runtime correctness), and merged them. It landed at the org.apache.ahc package to avoid confusion with the pre-existing client code that was under org.apache.asyncweb.client. The intention has been that not only would we make it work correctly with 2.0, move to a common codec, subsume the existing client, etc. but also would redesign the client. Unfortunately, the momentum stalled because key people who were most interested in making this happen (myself included) didn't get to make the big push. For me, my involvement was cut down for reasons that are unrelated to the project. Some discussion threads that may be of help: http://tinyurl.com/djr4pa http://tinyurl.com/azbpzg http://tinyurl.com/dkrlzv http://tinyurl.com/csonsf Having said that, I'd love to see this get going again (although my bandwidth on this is still quite limited). I'd certainly be happy to contribute what I can... As a side note, there is a working version of the asyncweb client in the 1.0 branch. This is almost the original version that is based on 1.0, and I think it is of production quality (we're using it in production). It hasn't seen an official release however. But please note that I don't think we will (or should) support this in a serious manner. Instead, we need to focus our effort on the trunk version based on mina 2.0. My 2 cents. Thanks, Sangjin On Mon, Mar 2, 2009 at 8:34 AM, Jacob Tomaw jacob.to...@gmail.com wrote: Emmanuel, Your caution is understandable. The only code change for the server is setting up the MINA LoggingFilter, but clearly there might be changes in MINA from M3 to M4 that affect the server in an unknown way. I am very interested in improving AsyncWeb (at least the client portion). My company is in the process of upgrading out 85+ application (no idea how many JVMs) to use AHC to communicate with each other. Is there someone already attached to the project who has a deep knowledge of AsyncWeb and has a direction they would like to see the project go? Right now there are to clients in the client dir and it is not clear what should happen with the two of them and if any more transitioning need to take place. Thanks, Jacob On Fri, Feb 27, 2009 at 11:25 AM, Emmanuel Lecharny elecha...@apache.org wrote: Jacob Tomaw wrote: I see that this is happening because the client is not completely moved from the ahc structure to the asyncweb.client structure. It is also not using the common codec. I am prepared to open jiras and create patches to clean this up. However, I want to gauge the likelihood of these patches being integrated into the trunk. I see several jiras with ptches attached and not further comment. Neither acceptance or rejection. Hi Jacob, it's just a matter to find people interested in improving AsyncWeb ! I will have a look at the patches, and try to get them applied. However, I have a very shallow knowledge about AsyncWeb code base, so I'm afraid it can break the server... Thanks ! -- -- cordialement, regards, Emmanuel Lécharny www.iktek.com directory.apache.org -- Jacob Tomaw tfl:The Flatiron Life (http://tomaw.com) Follow me on Twitter! (http://twitter.com/JacobTomaw)
Re: AsyncWeb jars incomplete
Ditto for me... glad to see folks making use of this. I could help a bit too, but my bandwidth is also tight. Glad to see this come up again. Jeff On Mar 3, 2009, at 10:13 AM, Sangjin Lee wrote: I was one of the people who were involved in bringing AHC over from the Geronimo sandbox (where it was first developed) to under asyncweb. Originally it was based on mina 1.1.x as at that time mina 2.0 was still in its active development. We did the bare minimum to make it compile against mina 2.0 (but not necessarily all the runtime correctness), and merged them. It landed at the org.apache.ahc package to avoid confusion with the pre-existing client code that was under org.apache.asyncweb.client. The intention has been that not only would we make it work correctly with 2.0, move to a common codec, subsume the existing client, etc. but also would redesign the client. Unfortunately, the momentum stalled because key people who were most interested in making this happen (myself included) didn't get to make the big push. For me, my involvement was cut down for reasons that are unrelated to the project. Some discussion threads that may be of help: http://tinyurl.com/djr4pa http://tinyurl.com/azbpzg http://tinyurl.com/dkrlzv http://tinyurl.com/csonsf Having said that, I'd love to see this get going again (although my bandwidth on this is still quite limited). I'd certainly be happy to contribute what I can... As a side note, there is a working version of the asyncweb client in the 1.0 branch. This is almost the original version that is based on 1.0, and I think it is of production quality (we're using it in production). It hasn't seen an official release however. But please note that I don't think we will (or should) support this in a serious manner. Instead, we need to focus our effort on the trunk version based on mina 2.0. My 2 cents. Thanks, Sangjin On Mon, Mar 2, 2009 at 8:34 AM, Jacob Tomaw jacob.to...@gmail.com wrote: Emmanuel, Your caution is understandable. The only code change for the server is setting up the MINA LoggingFilter, but clearly there might be changes in MINA from M3 to M4 that affect the server in an unknown way. I am very interested in improving AsyncWeb (at least the client portion). My company is in the process of upgrading out 85+ application (no idea how many JVMs) to use AHC to communicate with each other. Is there someone already attached to the project who has a deep knowledge of AsyncWeb and has a direction they would like to see the project go? Right now there are to clients in the client dir and it is not clear what should happen with the two of them and if any more transitioning need to take place. Thanks, Jacob On Fri, Feb 27, 2009 at 11:25 AM, Emmanuel Lecharny elecha...@apache.org wrote: Jacob Tomaw wrote: I see that this is happening because the client is not completely moved from the ahc structure to the asyncweb.client structure. It is also not using the common codec. I am prepared to open jiras and create patches to clean this up. However, I want to gauge the likelihood of these patches being integrated into the trunk. I see several jiras with ptches attached and not further comment. Neither acceptance or rejection. Hi Jacob, it's just a matter to find people interested in improving AsyncWeb ! I will have a look at the patches, and try to get them applied. However, I have a very shallow knowledge about AsyncWeb code base, so I'm afraid it can break the server... Thanks ! -- -- cordialement, regards, Emmanuel Lécharny www.iktek.com directory.apache.org -- Jacob Tomaw tfl:The Flatiron Life (http://tomaw.com) Follow me on Twitter! (http://twitter.com/JacobTomaw)
Re: AsyncWeb jars incomplete
Sangjin and Jeff, Thanks for the info and background. I will be sure to read up on the old threads you passed along. We are currently using the 1.0 AHC in our production environment, but we have other projects starting to use MINA 2. This is motivating me to build an AHC on MINA 2. I want to commit any changes we need to make back to the project and get it rolling again if we can. Thanks, Jacob On Tue, Mar 3, 2009 at 11:22 AM, Jeff Genender jgenen...@apache.org wrote: Ditto for me... glad to see folks making use of this. I could help a bit too, but my bandwidth is also tight. Glad to see this come up again. Jeff- Show quoted text - On Mar 3, 2009, at 10:13 AM, Sangjin Lee wrote: I was one of the people who were involved in bringing AHC over from the Geronimo sandbox (where it was first developed) to under asyncweb. Originally it was based on mina 1.1.x as at that time mina 2.0 was still in its active development. We did the bare minimum to make it compile against mina 2.0 (but not necessarily all the runtime correctness), and merged them. It landed at the org.apache.ahc package to avoid confusion with the pre-existing client code that was under org.apache.asyncweb.client. The intention has been that not only would we make it work correctly with 2.0, move to a common codec, subsume the existing client, etc. but also would redesign the client. Unfortunately, the momentum stalled because key people who were most interested in making this happen (myself included) didn't get to make the big push. For me, my involvement was cut down for reasons that are unrelated to the project. Some discussion threads that may be of help: http://tinyurl.com/djr4pa http://tinyurl.com/azbpzg http://tinyurl.com/dkrlzv http://tinyurl.com/csonsf Having said that, I'd love to see this get going again (although my bandwidth on this is still quite limited). I'd certainly be happy to contribute what I can... As a side note, there is a working version of the asyncweb client in the 1.0 branch. This is almost the original version that is based on 1.0, and I think it is of production quality (we're using it in production). It hasn't seen an official release however. But please note that I don't think we will (or should) support this in a serious manner. Instead, we need to focus our effort on the trunk version based on mina 2.0. My 2 cents. Thanks, Sangjin On Mon, Mar 2, 2009 at 8:34 AM, Jacob Tomaw jacob.to...@gmail.com wrote: Emmanuel, Your caution is understandable. The only code change for the server is setting up the MINA LoggingFilter, but clearly there might be changes in MINA from M3 to M4 that affect the server in an unknown way. I am very interested in improving AsyncWeb (at least the client portion). My company is in the process of upgrading out 85+ application (no idea how many JVMs) to use AHC to communicate with each other. Is there someone already attached to the project who has a deep knowledge of AsyncWeb and has a direction they would like to see the project go? Right now there are to clients in the client dir and it is not clear what should happen with the two of them and if any more transitioning need to take place. Thanks, Jacob On Fri, Feb 27, 2009 at 11:25 AM, Emmanuel Lecharny elecha...@apache.org wrote: Jacob Tomaw wrote: I see that this is happening because the client is not completely moved from the ahc structure to the asyncweb.client structure. It is also not using the common codec. I am prepared to open jiras and create patches to clean this up. However, I want to gauge the likelihood of these patches being integrated into the trunk. I see several jiras with ptches attached and not further comment. Neither acceptance or rejection. Hi Jacob, it's just a matter to find people interested in improving AsyncWeb ! I will have a look at the patches, and try to get them applied. However, I have a very shallow knowledge about AsyncWeb code base, so I'm afraid it can break the server... Thanks ! -- -- cordialement, regards, Emmanuel Lécharny www.iktek.com directory.apache.org -- Jacob Tomaw tfl:The Flatiron Life (http://tomaw.com) Follow me on Twitter! (http://twitter.com/JacobTomaw) -- Jacob Tomaw tfl:The Flatiron Life (http://tomaw.com) Follow me on Twitter! (http://twitter.com/JacobTomaw)
Re: AsyncWeb jars incomplete
Jeff Genender wrote: Ditto for me... glad to see folks making use of this. I could help a bit too, but my bandwidth is also tight. Glad to see this come up again. Jeff Hi guys, The MINA 2.0 porting was done by Julien AFACS from the svn logs. It's currently using 2.0.0-M3 version, so it must move to 2.0.0-M4. I can do the move, it's quite easy, but my total ignorance of how Asyncweb works will be a bit of a problem. There are also some pending patches which would be interesting to inject. he good point is that some people want to use AsyncWeb in a big scale, and to some extend, if those people are more or less interested in participating in the project, that would grow the number of committers (of course, assuming that merit is ok, etc, all the ASF way stance...). So, first, migrate AsyncWeb to 2.0.0-M4. Piece of cake. Let's do that ! -- -- cordialement, regards, Emmanuel Lécharny www.iktek.com directory.apache.org
Re: AsyncWeb jars incomplete
FYI, I just migrated to MINA 2.0.0-M4, and fixed some compilation errors. So far, asyncweb trunk is building now. -- -- cordialement, regards, Emmanuel Lécharny www.iktek.com directory.apache.org
Re: AsyncWeb jars incomplete
Was it the patch from https://issues.apache.org/jira/browse/ASYNCWEB-25? Thanks, Jacob On Tue, Mar 3, 2009 at 12:00 PM, Emmanuel Lecharny elecha...@apache.orgwrote: FYI, I just migrated to MINA 2.0.0-M4, and fixed some compilation errors. So far, asyncweb trunk is building now. -- - Show quoted text - -- cordialement, regards, Emmanuel Lécharny www.iktek.com directory.apache.org -- Jacob Tomaw tfl:The Flatiron Life (http://tomaw.com) Follow me on Twitter! (http://twitter.com/JacobTomaw)
[jira] Resolved: (ASYNCWEB-25) Upgrade to MINA 2.0.0-M4
[ https://issues.apache.org/jira/browse/ASYNCWEB-25?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Emmanuel Lecharny resolved ASYNCWEB-25. --- Resolution: Fixed Patch applied in : http://svn.apache.org/viewvc?rev=749672view=rev Upgrade to MINA 2.0.0-M4 Key: ASYNCWEB-25 URL: https://issues.apache.org/jira/browse/ASYNCWEB-25 Project: Asyncweb Issue Type: Bug Components: Common Reporter: Jacob Tomaw Attachments: asyncweb-25.patch Need to upgrade to MINA 2.0.0-M4 -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
Re: AsyncWeb jars incomplete
Jacob Tomaw wrote: Was it the patch from https://issues.apache.org/jira/browse/ASYNCWEB-25? yes. I just marked the issue as resolved (forgot to do that lately) -- -- cordialement, regards, Emmanuel Lécharny www.iktek.com directory.apache.org
Re: Preon - Binary data encoding framework
On Tue, Mar 3, 2009 at 8:36 PM, Emmanuel Lecharny elecha...@apache.org wrote: Ashish wrote: Folks, Was browsing through dzone and came across this framework Preon. From its website Preon is a framework for dealing with binary encoded data. It intends to be to binary encoded data what Hibernate is to relational databases, and JAXB to XML Thought would be worth bringing it to notice of our dev community. Some of us might be interested in it. May be we can add to our watch list and can work on building a codec, if we find it useful. wdyt? Could worth some time. Remember we still have to evaluate Tomasz Protocol Buffer code... Yup, I remember that. On a similar note, where are we maintaining our TODO list (outside JIRA)? We also have to evaluate protoTiger eclipse plugin. - ashish
