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• Jira Logs me out every 10 minutes of inactivity

  - by Tarski

  Hi guys, I am using Jira at work (v4.0.1#471) and my session seems to expire about every 10 minutes of not using it, which is quite annoying. I don't know why this is happening as it doesn't affect my colleagues who are also using Jira. I am using Firefox 3.6.3 on Vista. Jira is installed on Ubuntu Hardy server edition. What approach should I take to debug this problem? Thanks,

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• Very slow accessing printer shared from Windows Machine

  - by Tarski

  Hello, How do I go about debugging a networking problem where the office printer is shared off a Windows XP PC and is very slow from me to access? Print/changing any settings can take several minutes and applications often display "Not Responding" in this time. My machine is a Windows Vista PC. The other PCs in the office are either Vista or XP and do not suffer from any printing problems. I am not experiencing any other network related problems, I can access the web and e-mail fine. The printer is a HP officejet Pro 8000

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• Very slow accessing printer shared from Windows Machine

  - by Tarski

  How do I go about debugging a networking problem where the office printer is shared off a Windows XP PC and is very slow from me to access? Print/changing any settings can take several minutes and applications often display "Not Responding" in this time. My machine is a Windows Vista PC. The other PCs in the office are either Vista or XP and do not suffer from any printing problems. I am not experiencing any other network related problems, I can access the web and e-mail fine. The printer is a HP officejet Pro 8000

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• Why does Java's TreeSet not specify that its type parameter must extend Comparable?

  - by Tarski

  e.g. The code below throws a ClassCastException when the second Object is added to the TreeSet. Couldn't TreeSet have been written so that the type parameter can only be a Comparable type? i.e. TreeSet would not compile because Object is not Comparable. That way generics actually do their job - of being typesafe. import java.util.TreeSet; public class TreeSetTest { public static void main(String [] args) { TreeSet<Object> t = new TreeSet<Object>(); t.add(new Object()); t.add(new Object()); } }

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• MYSQL Convert rows to columns performance problem

  - by Tarski

  I am doing a query that converts rows to columns similar to this post but have encountered a performance problem. Here is the query:- SELECT Info.Customer, Answers.Answer, Answers.AnswerDescription, Details.Code1, Details.Code2, Details.Code3 FROM Info LEFT OUTER JOIN Answers ON Info.AnswerID = Answers.AnswerID LEFT OUTER JOIN (SELECT ReferenceNo, MAX(CASE DetailsIndicator WHEN 'cde1' THEN DetailsCode ELSE NULL END ) Code1, MAX(CASE DetailsIndicator WHEN 'cde2' THEN DetailsCode ELSE NULL END ) Code2, MAX(CASE DetailsIndicator WHEN 'cde3' THEN DetailsCode ELSE NULL END ) Code3 FROM DetailsData GROUP BY ReferenceNo) Details ON Info.ReferenceNo = Details.ReferenceNo There are less than 300 rows returned, but the Details table is about 180 thousand rows. The query takes 45 seconds to run and needs to take only a few seconds. When I type show processlist; into MYSQL it is hanging on "Sending Data". Any thoughts as to what the performance problem might be?

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• Mercurial Workflow for small team

  - by Tarski

  I'm working in a team of 3 developers and we have recently switched from CVS to Mercurial. We are using Mercurial by having local repositories on each of our workstations and pulling/pushing to a development server. I'm not sure this is the best workflow, as it is easy to forget to Push after a Commit, and 3 way merge conflicts can cause a real headache. Is there a better workflow we could use, as I think the complexity of distributed VC is outweighing the benefits at the moment. Thanks

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