Difference between revisions of "Todo"

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| crtools || Shmem changes tracking || medium || - ||  
 
| crtools || Shmem changes tracking || medium || - ||  
 
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| crtools || Page transfer filters || medium || Ruslan Kuprieiev || Packing or encrypting the data would be nice
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| crtools || Page transfer filters || medium || Ruslan Kuprieiev || Packing or encrypting the data would be nice. Maybe it's purely for [[p.haul]]?
 
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| crtools || FUSE || hard || - ||
 
| crtools || FUSE || hard || - ||
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| crtools || Support one of MPI implementations || hard || Adrian Reber || worth starting with OpenMPI
 
| crtools || Support one of MPI implementations || hard || Adrian Reber || worth starting with OpenMPI
 
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| crtools || Generate task's core file out of images || medium || - ||
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| crtools || Generate task's core file out of images || medium || - || [[CRIT]]
 
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| crtools || Convert images to JSON and back || easy || - ||
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| crtools || Convert images to JSON and back || easy || - || [[CRIT]]
 
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| crtools || Modify restored resources run-time || medium || - || Need (probably) some way to alter what is being restored. Usage example -- change the IP address of sockets from task above.
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| crtools || Modify restored resources run-time || medium || - || [[CRIT]] Need (probably) some way to alter what is being restored. Usage example -- change the IP address of sockets from task above.
 
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| crtools || TCP socket migration with changed IP || medium || - ||  it might make sense to migrate a tcp connection on a box with changed IP address _if_ both boxes are NAT-ed to the destination. We will then have to go to NAT box and fix the conntracks, but this might make sense.
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| crtools || TCP socket migration with changed IP || medium || - ||  [[CRIT]] it might make sense to migrate a tcp connection on a box with changed IP address _if_ both boxes are NAT-ed to the destination. We will then have to go to NAT box and fix the conntracks, but this might make sense.
 
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| crtools || [[Applying images]] || hard || xemul@ w/ students || Think about ability to take images and apply them to a living task(s). E.g. -- repopulate fdtable according to data from image. Another use-case -- when doing partial migration we'll need to modify one part to switch from pipes to sockets
 
| crtools || [[Applying images]] || hard || xemul@ w/ students || Think about ability to take images and apply them to a living task(s). E.g. -- repopulate fdtable according to data from image. Another use-case -- when doing partial migration we'll need to modify one part to switch from pipes to sockets
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| crtools/kernel || NFS || hard || - || Probably depends on DelayFS
 
| crtools/kernel || NFS || hard || - || Probably depends on DelayFS
 
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| crtools || Validate .img files || easy || - || For a given set of image files check, that they are in "restorable" shape
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| crtools || Validate .img files || easy || - || [[CRIT]] For a given set of image files check, that they are in "restorable" shape
 
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| crtools || Restore a process tree || hard ||  - || Need to restore any process tree, which could be created with help PR_SET_CHILD_SUBREAPER and CLONE_PARENT. Processes can share other resources [http://man7.org/linux/man-pages/man2/clone2.2.html clone(2)]. Look at [http://git.criu.org/?p=crtools.git;a=blob;f=test/zdtm/live/static/session02.c;hb=HEAD session02]
 
| crtools || Restore a process tree || hard ||  - || Need to restore any process tree, which could be created with help PR_SET_CHILD_SUBREAPER and CLONE_PARENT. Processes can share other resources [http://man7.org/linux/man-pages/man2/clone2.2.html clone(2)]. Look at [http://git.criu.org/?p=crtools.git;a=blob;f=test/zdtm/live/static/session02.c;hb=HEAD session02]

Revision as of 12:09, 19 November 2014

component task complexity assignee comments
crtools lazy migration using userfaultd medium -
crtools dump tasks from cgroup easy Currently criu dumps a subtree from given pid
crtools speed up logging medium - Synchronous writes to log files slow things down
crtools sanitize logging messages hard - Currently log messages are placed w/o any logic. Need to improve that ... somehow.
crtools support OFD posix locks easy -
crtools optimize kcmp calls medium - For fs/fdt/vm/etc we can pre-generate ID based on objects that live on them. If pre-ID matches, then call kcmp.
crtools Shmem changes tracking medium -
crtools Page transfer filters medium Ruslan Kuprieiev Packing or encrypting the data would be nice. Maybe it's purely for p.haul?
crtools FUSE hard -
crtools 32-bit tasks hard Cyrill
crtools Support one of MPI implementations hard Adrian Reber worth starting with OpenMPI
crtools Generate task's core file out of images medium - CRIT
crtools Convert images to JSON and back easy - CRIT
crtools Modify restored resources run-time medium - CRIT Need (probably) some way to alter what is being restored. Usage example -- change the IP address of sockets from task above.
crtools TCP socket migration with changed IP medium - CRIT it might make sense to migrate a tcp connection on a box with changed IP address _if_ both boxes are NAT-ed to the destination. We will then have to go to NAT box and fix the conntracks, but this might make sense.
crtools Applying images hard xemul@ w/ students Think about ability to take images and apply them to a living task(s). E.g. -- repopulate fdtable according to data from image. Another use-case -- when doing partial migration we'll need to modify one part to switch from pipes to sockets
crtools Partial migration hard - migrate some tasks while proxying IPC to existing others (pipes->sockets, etc.)
crtools Shared objects (mm/fs) support medium - Now we have the kcmp syscall and can do it. The first candidate is mm sharing, as we do know, that MySQL does so sometimes.
crtools Smart paths resolution hard - Need a way to resolve paths to overmounted files. There are two ways: 1. Move mounts, that overlap the desired path temprarily. 2. When creating a new mount pre-open an fd keeping the mountpoint. Later, do accurate path resolve and call openat() on proper mountpoint fd
kernel/crtools TCP repair fixes hard - TCP repair TODO
crtools Bridges in container medium -
crtools VLANs in containers medium -
crtools PPP support medium -
crtools/kernel DelayFS for NFS/Fuse migration hard -
kernel Seamless kernel upgrade hard Vladimir Davydov
crtools/kernel NFS hard - Probably depends on DelayFS
crtools Validate .img files easy - CRIT For a given set of image files check, that they are in "restorable" shape
crtools Restore a process tree hard - Need to restore any process tree, which could be created with help PR_SET_CHILD_SUBREAPER and CLONE_PARENT. Processes can share other resources clone(2). Look at session02
crtools X app hard - Dump/restore of graphical applications
crtools/kernel Undo semaphores medium Cyrill Gorcunov Require mods from both sides -- criu and kernel
crtools More detailed RPC fail codes easy - Currently only success = false is reported :(
kernel/criu fsnotify queues hard - Fsnotify