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| Deletions are marked like this. | Additions are marked like this. |
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| People: | People: W. Stein, J. Grout, M. Hansen |
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| * W. Stein * J. Grout |
== Database == |
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| Current Servers: | * If we stick with the filesystem: NEED a very fast filesystem that supports > 4 million inodes and > 32000 directories per directory, i.e., ext4. This is difficult because boxen and sage.math are both Ubuntu 8.10. * Also, want to at a minimum have user and worksheet metadata stored in database so startup is faster. * Could run the server in a virtual machine, which would support ext4. But are virtual machines fast enough these days? They weren't last year. This would be worth trying. * Or stick with the filesystem (see below). == Filesystem Thoughts == * (mhansen is doing this) Fix the {{{__worksheet}}} object to not load everything. Scary stuff if you look at notebook.py. * (mhansen) Write a script to prune the filesystem, e.g., deleting cell directories that are empty. * (mhansen?) Make it so user directories are stored in a hierarchical way. E.g., home/_store/ == Current Servers == |
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| * http://prep.sagenb.org * http://tutorial.sagenb.org * http://480.sagenb.org * http://alpha.sagenb.org * http://demo.sagenb.org * http://demo2.sagenb.org * http://nt.sagenb.org * http://standalone.sagenb.org * http://test.sagenb.org * http://uw.sagenb.org * http://flask.sagenb.org -- not upgraded == Backup Strategy == ? == Untrusted User Code: must all be executed in a virtual machine == ? == Monitoring == * Nagios -- investigate for monitoring * Or extend this script: http://wstein.org/home/wstein/bin/watch.sage == Virtual Machines == * I tried install virtualbox 4 on sage.math and failed, due to the Linux source and Linux kernel being out of sync somehow. Probably just needs an upgrade and reboot. * I am scared to upgrade virtualbox on boxen.math. * The Virtualbox on boxen.math is somewhat unstable and very old. |
Upgrade, flask, sage 4.7, and ext4 filesystem
People: W. Stein, J. Grout, M. Hansen
Database
If we stick with the filesystem: NEED a very fast filesystem that supports > 4 million inodes and > 32000 directories per directory, i.e., ext4. This is difficult because boxen and sage.math are both Ubuntu 8.10.
- Also, want to at a minimum have user and worksheet metadata stored in database so startup is faster.
- Could run the server in a virtual machine, which would support ext4. But are virtual machines fast enough these days? They weren't last year. This would be worth trying.
- Or stick with the filesystem (see below).
Filesystem Thoughts
(mhansen is doing this) Fix the __worksheet object to not load everything. Scary stuff if you look at notebook.py.
- (mhansen) Write a script to prune the filesystem, e.g., deleting cell directories that are empty.
- (mhansen?) Make it so user directories are stored in a hierarchical way. E.g., home/_store/
Current Servers
http://flask.sagenb.org -- not upgraded
Backup Strategy
- ?
Untrusted User Code: must all be executed in a virtual machine
- ?
Monitoring
- Nagios -- investigate for monitoring
Or extend this script: http://wstein.org/home/wstein/bin/watch.sage
Virtual Machines
- I tried install virtualbox 4 on sage.math and failed, due to the Linux source and Linux kernel being out of sync somehow. Probably just needs an upgrade and reboot.
- I am scared to upgrade virtualbox on boxen.math.
- The Virtualbox on boxen.math is somewhat unstable and very old.