Please find the blog post [1]. [1]http://ajithvblogs.blogspot.de/2013/11/jmeter-java-request-to-test.html
Thanks. Ajith On Tue, Jun 10, 2014 at 8:28 PM, Subash Chaturanga <[email protected]> wrote: > Hi , > This is regarding issue on WS Registry Service Client in high concurrency > which seems blocks the AF release. > > When reading the content with several threads in AF, i.e two resources > > path = /foo/r1 content = 12345 > path = /foo/r2 content = 67 > > For AF guys, when they retrieve r1 and r2 resources, i.e for > r1 - returns 12345 > but r2 returns 67*45* > > ( r2 returns with some values from old resource content. ) > > When dig deep with Janaka, found that, in server side > org.wso2.carbon.registry.ws.api.WSRegistry maintains single tempFile per > instance. And it get used to maintain the content to pass to client side > inside the DataHolder. > > Hence obviously we can expect this issue in a but high concurrency. So as > a solution when creating the data holder we create a copy of the > aforementioned file as follows. And then for multiple requests on the same > ws connection it deals with separate files and issue went away. > > But this leads to grow the tmp files in the tmp directory but upon server > downtime those will get vanished. > > With the following fix, since files are growing, one option is to do an > additional ws call inside ws-client to server side to clean up the > particular file. But it seems not a best solution. > > > *So @Senaka @Ajith, Any better solution you can see ? * > > > Index: > src/main/java/org/wso2/carbon/registry/ws/api/utils/CommonUtil.java > =================================================================== > --- src/main/java/org/wso2/carbon/registry/ws/api/utils/CommonUtil.java > (revision 204294) > +++ src/main/java/org/wso2/carbon/registry/ws/api/utils/CommonUtil.java > (working copy) > @@ -193,6 +193,9 @@ > } > > public static DataHandler makeDataHandler(Resource resource, File > tempFile) throws IOException, RegistryException{ > + tempFile = File.createTempFile("wsresource", ".tmp"); > + tempFile.deleteOnExit(); > + > if (resource.getContent() == null) { > return null; > } > > > -- > Thanks > /subash > > *Subash Chaturanga* > Senior Software Engineer :Platform TG; WSO2 Inc. http://wso2.com > > email: [email protected] > blog: http://subashsdm.blogspot.com/ > twitter: @subash89 > phone: +9477 2225922 > Lean . Enterprise . Middleware > -- Ajith Vitharana. WSO2 Inc. - http://wso2.org Email : [email protected] Mobile : +94772217350
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