Difference between revisions of "Todo"
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| crtools || Shmem changes tracking || medium || - || | | crtools || Shmem changes tracking || medium || - || | ||
|- | |- | ||
| − | | crtools || Page transfer filters || medium || Ruslan Kuprieiev || Packing or encrypting the data would be nice | + | | 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 || 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 | ||
|- | |- | ||
| − | | crtools || Generate task's core file out of images || medium || - || | + | | crtools || Generate task's core file out of images || medium || - || [[CRIT]] |
|- | |- | ||
| − | | crtools || Convert images to JSON and back || easy || - || | + | | crtools || Convert images to JSON and back || easy || - || [[CRIT]] |
|- | |- | ||
| − | | 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. | + | | 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 || - || 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 || 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 || [[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 | ||
|- | |- | ||
| − | | crtools || Validate .img files || easy || - || For a given set of image files check, that they are in "restorable" shape | + | | 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 [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 |