On Fri, 12 Jul 2002, Jenya Strokin wrote: >So, the best solution yet is using Core Server API. But we can't run >application on different machine in this case (in my case probably this is >ok). >I can't understand how interface could affect to performance. Probably they >even use the same code when they run same things and at least they use the >same Core Server API. >Time for parsing messages is not critical when you run big query. I guess >Heinrich ran small queries, that why gap was so big. >But, I can only guessing here.
No, I didn't ran any query in my test. I just stored documents with a well known doc-id, so in my case I can fetch the document per direct access using this unique id. regards Heinrich >Anyway, thanks for help and information. I'm going to use XML-RPC, till find >some better solution (SOAP, RMI maybe, maybe even EJB))) > >-----Original Message----- >From: [EMAIL PROTECTED] >[mailto:[EMAIL PROTECTED] Behalf Of Heinrich G?tzger >Sent: Friday, July 12, 2002 3:54 PM >To: xindice-users@xml.apache.org >Subject: RE: Problem with resource freeing. > >salue, > >just a short intermediate: > >Think about the performance. XML-RPC brings a tenth of CORBA in >throughput. > >I did some tests with Xindice and some with eXist some month ago and as >far as this is comparable at all, there is a huge gap in msg/sec during >storing. I didn't check for retrieval since I always know the id of the >document in my case. > >So even if I bother with the CORBA due to a ORB conflict I wouldn't give >it away like nothing without thinking it over again. > >regards > >Heinrich > >On Fri, 12 Jul 2002, Kanarinka wrote: > >>Hi Jenya - >> >>The Xindice XML-RPC interface is designed so that XML-RPC will replace >>CORBA as the multi-language access mechanism. Here's a good link to the >>purpose behind the XML-RPC interface: >>http://xindice-xmlrpc.sourceforge.net/ >> >>To download the XML_RPC interface go here: >>http://sourceforge.net/projects/xindice-xmlrpc/ >> >>The problems that we were encountering seemed similar to what Edward >>Nesterov was describing in the initial post that I replied to. We found >>that Xindice would run smoothly for the first few hundred transactions >>(about 5 minutes based on what our application does) but that the >>resources used by the Xindice transactions were not getting freed. >>Basically what would end up happening is that our application and the >>tomcat server would appear to hang in odd, random places and the CPU >>would max out and the JVM would end up hung/crashed. >> >>Switching to the XML-RPC interface solved this problem. It looks like >>the developers all want to cut CORBA anyways as the default >>implementation and there's some further discussion of the problem, for >>example, here: >> >>http://marc.theaimsgroup.com/?l=xindice-dev&m=102643473900429&w=2 >> >>I highly recommend using the XML-RPC interface right from the beginning. >>It wasn't too painful to port our application over to it, but it did >>take a few days work. >> >>Hope that helps, >>catherine >> >>-----Original Message----- >>From: Jenya Strokin [mailto:[EMAIL PROTECTED] >>Sent: Friday, July 12, 2002 1:53 PM >>To: xindice-users@xml.apache.org >>Subject: RE: Problem with resource freeing. >> >> >>May I ask instead of what you start using XML-RPC interface? >>Because I'm going to use Xindice with Tomcat, I probably should use this >>interface too. >>I've tested Xindice using APIService, is it bring the problem? >>Could you give more details of this case? I'm new in Xindice and any >>information is helpful. >>Thanks, >>Jenya >> >>-----Original Message----- >>From: Kanarinka [mailto:[EMAIL PROTECTED] >>Sent: Friday, July 12, 2002 12:45 PM >>To: xindice-users@xml.apache.org >>Subject: RE: Problem with resource freeing. >> >>Hello all, >> >>For the record I want to state that switching to the XML-RPC interface >>has solved the resource freeing and memory issues that we were >>experiencing with Xindice under Win2K. >> >>Hope that helps someone in the future... >> >>Cheers, >>Catherine >> >>-----Original Message----- >>From: Edward Nesterov [mailto:[EMAIL PROTECTED] >>Sent: Monday, July 08, 2002 10:55 AM >>To: xindice-users@xml.apache.org >>Subject: Re: Problem with resource freeing. >> >> >>Hi, >> >>1) We spent a lot of time for writing the custom mapper RDBMS<->XML as >>all open source XMLDB which are on the market did not match our >>criteria. >> >>2) No we did not try Xindice's XML_RPC interface. >> >>Ed. >> >>Kanarinka wrote: >> >>>Hi Edward, >>> >>>I'm sorry to hear that. Could I bother you with two quick questions? >>> >>>1) What did you switch to instead of Xindice? >>> >>>2) Did you try Xindice's XML-RPC Interface? According to Walt Meyer >>this >>>seemed to solve some memory and resource issues on Windows -- >>>http://www.thatwaltguy.com/xinstaller/ >>> >>>Thanks for your help, >>>Catherine >>> >>>-----Original Message----- >>>From: Edward Nesterov [mailto:[EMAIL PROTECTED] >>>Sent: Wednesday, July 03, 2002 5:38 PM >>>To: xindice >>>Subject: Re: Problem with resource freeing. >>> >>> >>>Hi, >>> >>>We abandoned xindice until this problem is fixed. >>>Sorry. >>> >>>Ed. >>> >>>Catherine D'Ignazio wrote: >>> >>>>Hello - >>>> >>>>Has there been any exploration of the issue below? We are running our >>>>application and Xindice under Tomcat 4.0 and this problem seems to be >>>>happening. >>>> >>>>The application and xindice handle requests fine for about the first 5 >>>>minutes that the app server is up and running but after that the >>>>application hangs. It hangs in different places every time, so there >>is >>>>no consistency to it. >>>> >>>>We are running on Win2K, jdk 1.3.1_01, Tomcat 4.0 and Win2K, jdk >>>>1.3.1_03, Tomcat 4.0 >>>> >>>>Does anybody have more information/workarounds/etc about this? >>>> >>>>We would really appreciate it since we are about to deploy a distance >>>>learning application using Xindice. >>>> >>>>Thanks >>>>Catherine D'Ignazio >>>> >>>> >>>>PREVIOUS MESSAGE: >>>>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >>>>List: xindice-users >>>>Subject: Problem with resource freeing. >>>>From: Edward Nesterov <[EMAIL PROTECTED]> >>>>Date: 2002-05-08 17:33:25 >>>>[Download message RAW] >>>> >>>>Hi, >>>>I am working with latest release of Xindice on Linux >>RH6.2/JDK1.3.1_03. >>>> >>>>The following problem constantly occurs: >>>> -Closing of Collection does not free resources (socket >>>>connections are >>>>established, thread(process) is alive(running)) though isOpen() >>returns >>>> >>> >>>>false. >>>> -Resources became freed only on client application exit, which >>>>makes >>>>impossible to use Xindice together with servlet engines, or other kind >> >>>>of application servers. >>>> >>>>I observed the same behavior on W2K/JDK1.3.1. >>>>Is it bug or feature? >>>>Are there any places to change the behavior of Xindice? >>>> >>>>Thanks. >>>> >>>>Ed. >>>> >>>> >>>> >>> >>> >>> >> >>------------------------------------------- >>Introducing NetZero Long Distance >>Unlimited Long Distance only $29.95/ month! >>Sign Up Today! www.netzerolongdistance.com >> >-- >http://www.xmlBlaster.org > >------------------------------------------- >Introducing NetZero Long Distance >Unlimited Long Distance only $29.95/ month! >Sign Up Today! www.netzerolongdistance.com > -- http://www.xmlBlaster.org
