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From "Asankha C. Perera (JIRA)" <j...@apache.org>
Subject [jira] Commented: (SYNAPSE-225) Leaking resources when the connection times out.
Date Wed, 23 Apr 2008 03:25:21 GMT

    [ https://issues.apache.org/jira/browse/SYNAPSE-225?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12591522#action_12591522
] 

Asankha C. Perera commented on SYNAPSE-225:
-------------------------------------------

Jef / Steve

Thank you both for bringing this to our notice and helping us to fix this.. although we did
test and continue to use the free JProfiler license we have been granted - whenever we get
the time, to make sure we release resources etc. some times I have seen leaks which are much
more difficult to notice or figure out. These are best figured out by observation, analysis
and human intelligence and code review.. and we are truly lucky to have great users like you
to help us with these!

cheers
asankha

> Leaking resources when the connection times out.
> ------------------------------------------------
>
>                 Key: SYNAPSE-225
>                 URL: https://issues.apache.org/jira/browse/SYNAPSE-225
>             Project: Synapse
>          Issue Type: Bug
>          Components: Transports
>    Affects Versions: 1.1.1
>         Environment: [root@lou-lxapachetest ~]# cat /etc/redhat-release 
> Red Hat Enterprise Linux Server release 5.1 (Tikanga)
> [root@lou-lxapachetest ~]# uname -a
> Linux lou-lxapachetest 2.6.18-53.el5 #1 SMP Wed Oct 10 16:34:02 EDT 2007 i686 i686 i386
GNU/Linux
> [root@lou-lxapachetest ~]# java -version
> java version "1.5.0_13"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_13-b05)
> Java HotSpot(TM) Client VM (build 1.5.0_13-b05, mixed mode, sharing)
> [root@lou-lxapachetest ~]# 
>            Reporter: SteveKrall
>            Assignee: Ruwan Linton
>             Fix For: 1.2
>
>
> I'm using 1.1.1-RC1.  When a connection times out, I can see using lsof pipes being left
open.  This does not happen when the connection works normally.
> Steps to reproduce:
> 1. Check the open files
> 2. Run the SimpleStockQuoteApplication successfully
> 3. Check the open files (open files will go up on the first successful request, but not
subsequent successful request
> 4. Run the SimpleStockQuoteApplication this time with a  -Daddurl that will generate
a timeout.
> 5. Check the open files.  Repeat steps 4 and 5.  The number will continue to grow.
> My output from a test:
> skrall@skralldesktop ~/files/downloads/synapse/synapse-1.1.1/samples/axis2Client $ lsof
-p 27788 | wc -l
> 245
> skrall@skralldesktop ~/files/downloads/synapse/synapse-1.1.1/samples/axis2Client $ lsof
-p 27788 | grep pipe | wc -l
> 24
> skrall@skralldesktop ~/files/downloads/synapse/synapse-1.1.1/samples/axis2Client $ ant
stockquote -Daddurl=http://localhost:9000/soap/SimpleStockQuoteService -Dtrpurl=http://localhost:8080
> Buildfile: build.xml
> init:
> compile:
> stockquote:
>      [java] Standard :: Stock price = $99.43283516858692
> BUILD SUCCESSFUL
> Total time: 2 seconds
> skrall@skralldesktop ~/files/downloads/synapse/synapse-1.1.1/samples/axis2Client $ lsof
-p 27788 | wc -l
> 245
> skrall@skralldesktop ~/files/downloads/synapse/synapse-1.1.1/samples/axis2Client $ lsof
-p 27788 | grep pipe | wc -l
> 24
> skrall@skralldesktop ~/files/downloads/synapse/synapse-1.1.1/samples/axis2Client $ ant
stockquote -Daddurl=http://<HostThatWillCauseTimeout>:9000/soap/SimpleStockQuoteService
-Dtrpurl=http://localhost:8080
> Buildfile: build.xml
> init:
> compile:
> stockquote:
>      [java] 2008-01-15 16:05:40,829 [-] [main]  INFO HTTPSender Unable to sendViaPost
to url[http://localhost:8080]
>      [java] java.net.SocketTimeoutException: Read timed out
>      [java]     at java.net.SocketInputStream.socketRead0(Native Method)
>      [java]     at java.net.SocketInputStream.read(SocketInputStream.java:129)
>      [java]     at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
>      [java]     at java.io.BufferedInputStream.read(BufferedInputStream.java:237)
>      [java]     at org.apache.commons.httpclient.HttpParser.readRawLine(HttpParser.java:77)
>      [java]     at org.apache.commons.httpclient.HttpParser.readLine(HttpParser.java:105)
>      [java]     at org.apache.commons.httpclient.HttpConnection.readLine(HttpConnection.java:1115)
>      [java]     at org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$HttpConnectionAdapter.readLine(MultiThreadedHttpConnectionManager.java:1373)
>      [java]     at org.apache.commons.httpclient.HttpMethodBase.readStatusLine(HttpMethodBase.java:1832)
>      [java]     at org.apache.commons.httpclient.HttpMethodBase.readResponse(HttpMethodBase.java:1590)
>      [java]     at org.apache.commons.httpclient.HttpMethodBase.execute(HttpMethodBase.java:995)
>      [java]     at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:397)
>      [java]     at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:170)
>      [java]     at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:396)
>      [java]     at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:346)
>      [java]     at org.apache.axis2.transport.http.AbstractHTTPSender.executeMethod(AbstractHTTPSender.java:520)
>      [java]     at org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.java:191)
>      [java]     at org.apache.axis2.transport.http.HTTPSender.send(HTTPSender.java:77)
>      [java]     at org.apache.axis2.transport.http.CommonsHTTPTransportSender.writeMessageWithCommons(CommonsHTTPTransportSender.java:327)
>      [java]     at org.apache.axis2.transport.http.CommonsHTTPTransportSender.invoke(CommonsHTTPTransportSender.java:206)
>      [java]     at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:396)
>      [java]     at org.apache.axis2.description.OutInAxisOperationClient.send(OutInAxisOperation.java:374)
>      [java]     at org.apache.axis2.description.OutInAxisOperationClient.executeImpl(OutInAxisOperation.java:211)
>      [java]     at org.apache.axis2.client.OperationClient.execute(OperationClient.java:163)
>      [java]     at org.apache.axis2.client.ServiceClient.sendReceive(ServiceClient.java:528)
>      [java]     at org.apache.axis2.client.ServiceClient.sendReceive(ServiceClient.java:508)
>      [java]     at samples.userguide.StockQuoteClient.executeClient(Unknown Source)
>      [java]     at samples.userguide.StockQuoteClient.main(Unknown Source)
>      [java] org.apache.axis2.AxisFault: Read timed out
>      [java]     at org.apache.axis2.AxisFault.makeFault(AxisFault.java:417)
>      [java]     at org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.java:195)
>      [java]     at org.apache.axis2.transport.http.HTTPSender.send(HTTPSender.java:77)
>      [java]     at org.apache.axis2.transport.http.CommonsHTTPTransportSender.writeMessageWithCommons(CommonsHTTPTransportSender.java:327)
>      [java]     at org.apache.axis2.transport.http.CommonsHTTPTransportSender.invoke(CommonsHTTPTransportSender.java:206)
>      [java]     at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:396)
>      [java]     at org.apache.axis2.description.OutInAxisOperationClient.send(OutInAxisOperation.java:374)
>      [java]     at org.apache.axis2.description.OutInAxisOperationClient.executeImpl(OutInAxisOperation.java:211)
>      [java]     at org.apache.axis2.client.OperationClient.execute(OperationClient.java:163)
>      [java]     at org.apache.axis2.client.ServiceClient.sendReceive(ServiceClient.java:528)
>      [java]     at org.apache.axis2.client.ServiceClient.sendReceive(ServiceClient.java:508)
>      [java]     at samples.userguide.StockQuoteClient.executeClient(Unknown Source)
>      [java]     at samples.userguide.StockQuoteClient.main(Unknown Source)
>      [java] Caused by: java.net.SocketTimeoutException: Read timed out
>      [java]     at java.net.SocketInputStream.socketRead0(Native Method)
>      [java]     at java.net.SocketInputStream.read(SocketInputStream.java:129)
>      [java]     at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
>      [java]     at java.io.BufferedInputStream.read(BufferedInputStream.java:237)
>      [java]     at org.apache.commons.httpclient.HttpParser.readRawLine(HttpParser.java:77)
>      [java]     at org.apache.commons.httpclient.HttpParser.readLine(HttpParser.java:105)
>      [java]     at org.apache.commons.httpclient.HttpConnection.readLine(HttpConnection.java:1115)
>      [java]     at org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$HttpConnectionAdapter.readLine(MultiThreadedHttpConnectionManager.java:1373)
>      [java]     at org.apache.commons.httpclient.HttpMethodBase.readStatusLine(HttpMethodBase.java:1832)
>      [java]     at org.apache.commons.httpclient.HttpMethodBase.readResponse(HttpMethodBase.java:1590)
>      [java]     at org.apache.commons.httpclient.HttpMethodBase.execute(HttpMethodBase.java:995)
>      [java]     at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:397)
>      [java]     at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:170)
>      [java]     at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:396)
>      [java]     at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:346)
>      [java]     at org.apache.axis2.transport.http.AbstractHTTPSender.executeMethod(AbstractHTTPSender.java:520)
>      [java]     at org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.java:191)
>      [java]     ... 11 more
> BUILD SUCCESSFUL
> Total time: 32 seconds
> skrall@skralldesktop ~/files/downloads/synapse/synapse-1.1.1/samples/axis2Client $ lsof
-p 27788 | wc -l
> 250
> skrall@skralldesktop ~/files/downloads/synapse/synapse-1.1.1/samples/axis2Client $ lsof
-p 27788 | grep pipe | wc -l
> 28

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