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Hadoop QA commented on HADOOP-6607: ----------------------------------- {color:green}+1 overall{color}. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12553507/HADOOP-6607.patch against trunk revision . {color:green}+1 @author{color}. The patch does not contain any @author tags. {color:green}+1 tests included{color}. The patch appears to include 1 new or modified test files. {color:green}+1 javac{color}. The applied patch does not increase the total number of javac compiler warnings. {color:green}+1 javadoc{color}. The javadoc tool did not generate any warning messages. {color:green}+1 eclipse:eclipse{color}. The patch built with eclipse:eclipse. {color:green}+1 findbugs{color}. The patch does not introduce any new Findbugs (version 1.3.9) warnings. {color:green}+1 release audit{color}. The applied patch does not increase the total number of release audit warnings. {color:green}+1 core tests{color}. The patch passed unit tests in hadoop-common-project/hadoop-common. {color:green}+1 contrib tests{color}. The patch passed contrib unit tests. Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/1743//testReport/ Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/1743//console This message is automatically generated. > Add different variants of non caching HTTP headers > -------------------------------------------------- > > Key: HADOOP-6607 > URL: https://issues.apache.org/jira/browse/HADOOP-6607 > Project: Hadoop Common > Issue Type: Bug > Components: io > Affects Versions: 0.22.0 > Reporter: Steve Loughran > Assignee: Alejandro Abdelnur > Priority: Minor > Fix For: 2.0.3-alpha > > Attachments: HADOOP-6607.patch, NoCachingFilter.java > > > I'm suffering from proxy servers that are caching some of the HttpResponses > that Hadoop generates in servlets/JSP pages. While the web ui is up to date, > some of my build files are failing to pull stuff down because that is going > via proxy -it sees an error page rather than the data > # Every servlet should set a short expires header and disable caching, > especially in proxies. > # JSP pages should do it to > # It's essential that error responses do it. > Maybe this could be done in a filter. Otherwise something like > {code} > /** > * Turn off caching and say that the response expires now > * @param response the response > */ > protected void disableCaching(HttpServletResponse response) { > response.addDateHeader("Expires", System.currentTimeMillis()); > response.addHeader("Cache-Control", "no-cache"); > response.addHeader("Pragma", "no-cache"); > } > {code} > Before anyone rushes to do this, we should consult some HTTP experts in > Yahoo! or Facebook to get the options right. It may be best to have, say, a > 1s lifespan on everything. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira