Difference between revisions of "Todo"

Jump to: navigation, search
Line 57: Line 57:
| crtools || rlimits || - || -
| crtools || rlimits || - || -
| crtools || shutdown for inet sockets || - || There will probably be issues with TCP :( The tcp_shutdown doesn't look at repair being set

Revision as of 17:07, 20 November 2012

component task assignee comments
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/fdtable) 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 Proc fdinfo extension gorcunov@ Need to rework and resubmit the patches
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
kernel/crtools Auto namespaces detection - Now we "detect" them by looking at cmdline options
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 - 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 rlimits - -