You can't - it's locked down to prevent you from overloading your system.
You can ask Atlassian for a full backup with everything in it, but that can take time and they won't do it frequently.
You might be a lot better off asking why you are exporting issues and fixing the problem at a business level.
I'm afraid "analytical purposes" doesn't really answer the question. Why do you have to export 50,000 issues to do this analysis? What's missing in Jira? The best question to look at is: what business questions are you trying to answer with this analysis?
You will not get access to an OnDemand database.
Actually i have 5000 issues in one project i want 5000 issues to download at a time,exporting 1000 issues one by one means its time consuming and some data is missing,by exporting 5000 means i can do my work at a time with that data
We are trying to do analytics with that data, there is no way to connect and there is no way to download the data more than 1000 records at a time, we do not want to be dependant on the team to backup everytime for us, so we need a better option asking how else can we do with ondemand
There is no need to keep repeating the question. Please read the answers you are given.
The only way to "export" large amounts of data is to download the backup in xml. See https://confluence.atlassian.com/display/AOD/Backing+up+and+exporting+data
You would be far better off answering the question I keep asking you - WHY? What is the business question you need to answer?
I too desire to export all issues in my on-demand database and I have over 3K issues. The business reason is that I want to perform more analysis than what on-demand provides. I am experimenting with calculating an estimated buffer based on the risk and estimate. I am charting estimation accuracy across multiple projects and excel is a very good tool to accomplish this. I chart various metrics so that I can see trends to determine where my team improve. This also allows me to factor data into reports and compare other teams within the organization that do not currently use on-demand but are gathering similar data.
I have a Bamboo build that regularly retrieves issues and version information into a local database for more advanced reporting and charting in Confluence. While this usually is done as a delta, even doing it from scratch on smaller JIRA instances (mine is 2.5K) is just a few minutes.
My 2 cents - I don't think that the pertinent issue is why Selva wants to do this - it is a reasonable thing to want to do and I think that there is a way:
https://answers.atlassian.com/questions/220391/how-do-i-increase-the-number-of-rows-on-the-export-to-excel-currently-it-only-exports-1-000-rows and look at what Ricardo has written.
I would caution against making it available to all users because of the potential impact. If you 'google' around I think that there is a way of limiting the ability to do this to members of a specific group.
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