| component | task | assignee | comments |
|---|---|---|---|
| crtools | stopped tasks | - | - |
| crtools/kernel | pending signals | avagin@ | - |
| crtools/kernel | memory snapshot | xemul@ | need to take mem snapshot in kernel for iterative migration, (probably) rebootless upgrade and HA |
| crtools | restore in namespace | - | having images taken from live app, need to restore them inside newly created namespace. For PID we'd have to provide our own init, for NET -- setup some veth. |
| crtools | TCP socket migration with changed IP | xemul@ | 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 | Apply-images mode | xemul@ | 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 | Modify restored resources run-time | xemul@ | Need (probably) some way to alter what is being restored. Usage example -- change the IP address of sockets from task above. |
| crtools | partial migration | - | migrate some tasks while proxying IPC to existing others (pipes->sockets, etc.) |
| crtools | Shared objects (mm/fs) support | avagin@ | 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. |
| kernel | Provide own defconfig | gorcunov@ | suggested by avagin@ |
| crtools | Paranoid dumping and restoring | - | Make paranoid checks for what we dump. E.g. pgid being valid (withing session) and fds drained from parasite are valid |
| kernel/crtools | posix timers | skinsbursky@ | Need new kernel API for a) listing existing timers and b) fetching timer notify configuration. |
| crtools | Smart paths resolution | - | 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 | - | TCP repair TODO |
| crtools | Iptables | - | This is easy. Need to run ipdables-save and iptables-restore |
| crtools | Multiple namespaces | - | Need to handle the cases when more than one namespace of one type exists and dump them properly |
| crtools | Migration w/o intermediate disk | Adrian Reber | - |
| kernel/crtools | TUN/TAP | - | - |
| vzkernel/crtools | OpenVZ kernel support | - | Within 3.5 and RHEL7 port |
| crtools | More sockoptions | xemul@ | SOL_ are done |
| crtools | Bridges in container | - | |
| crtools | cgroups in container | - | |
| crtools/kernel | NFS | - | |
| crtools/kernel | VDSO | - | issues: VDSO may change between kernels; vsyscall may change between kernels; VDSO mapping should be VDSO mapping, not regular one |
| crtools | Unmap a restorer VMA | - | Lots of ideas were generated so far. |
| crtools | file locks | Huawei developers | It's hard to do it carefully. We need to make sure that all lock users are taken into dump. Only support it inside container? |
| crtools | migrate script | - | It's not complex, but openvz-like migrate scripts should exists |
| crtools | Asynchronous parasite | gorcunov@ | Parasite should wait on tsock for commands, not being restarted by crtools |