TCP repair TODO - Revision history

Xemul at 15:27, 24 January 2017

2017-01-24T15:27:34Z

2017-01-24T15:26:56Z

2017-01-18T14:30:25Z

2017-01-18T14:28:57Z

2017-01-18T13:39:53Z

2017-01-18T13:37:52Z

Done stuff

2017-01-18T13:36:07Z

2016-11-17T08:46:23Z

2016-09-17T14:27:46Z

2016-09-17T14:26:30Z

@@ Line 5: / Line 5: @@
 ; OOB data
 : Nothing to say here actually. This data is just not supported currently.
 == Done stuff ==
-; Transitional states
+; Transitional states & Shutdown sockets repair
 : Fixed in [[Download/criu/2.10|2.10]]
@@ Line 20: / Line 17: @@
 The half-opened connections on the server side can be dropped dump-time with the <code>--skip-in-flight</code> option. This helps in heavily loaded cases when such sockets appear often.
 </div>
 </div>

@@ Line 2: / Line 2: @@
 TCP repair feature in the Linux kernel is supposed to help migrating a TCP socket. It's not yet complete and this page lists what is to be done.
 ; OOB data
@@ Line 44: / Line 41: @@
   The nf_conntrack thing in the kernel is about to be live-migrated too.
   There's currently an API for getting the conntrack info (/proc file), but no such for restoring it by hands.
 </div>
 </div>

@@ Line 11: / Line 11: @@
 ; Shutdown sockets repair
 : Need to place checks in the inet shutdown code similar to those on connect/sendmsg paths.
 == Done stuff ==
@@ Line 36: / Line 35: @@
 </div>
 </div>
 ; Connection tracking
@@ Line 49: / Line 46: @@
 </div>
 </div>
 [[Category:Plans]]
 [[Category:Network]]
 [[Category:Fly in the ointment]]

@@ Line 8: / Line 8: @@
 ; OOB data
 : Nothing to say here actually. This data is just not supported currently.
 ; Shutdown sockets repair
@@ Line 29: / Line 26: @@
 </div>
 </div>
 ; Connection tracking

@@ Line 21: / Line 21: @@
 : Fixed in [[Download/criu/2.10|2.10]]
 Old description:
+<div class="mw-collapsible-content">
 Currently we support sockets in ''closed'' and ''establised'' states. However, if a socket is in e.g. ''syn-sent'' state the process of turning it into ''established'' can last long. We should teach the kernel and criu to checkpoint and restore this and other states.
 The half-opened connections on the server side can be dropped dump-time with the <code>--skip-in-flight</code> option. This helps in heavily loaded cases when such sockets appear often.
 ; Connection tracking
 : Fixed in [[Download/criu/2.0|2.0]]
 Old description:
+<div class="mw-collapsible-content">
-The nf_conntrack thing in the kernel is about to be live-migrated too. There's currently an API for getting the conntrack info (/proc file), but no such for restoring it by hands.
+ The nf_conntrack thing in the kernel is about to be live-migrated too.

@@ Line 4: / Line 4: @@
 ; Transitional states
-: Currently we support sockets in ''closed'' and ''establised'' states. However, if a socket is in e.g. ''syn-sent'' state the process of turning it into ''established'' can last long. We should teach the kernel and criu to checkpoint and restore this and other states
+: Currently we support sockets in ''closed'' and ''establised'' states. However, if a socket is in e.g. ''syn-sent'' state the process of turning it into ''established'' can last long. We should teach the kernel and criu to checkpoint and restore this and other states.
 ; Optimized restore

← Older revision		Revision as of 14:26, 17 September 2016
Line 1:		Line 1:
		+	''Main article: [[TCP connection]]''
		+
	TCP repair feature in the Linux kernel is supposed to help migrating a TCP socket. It's not yet complete and this page lists what is to be done.		TCP repair feature in the Linux kernel is supposed to help migrating a TCP socket. It's not yet complete and this page lists what is to be done.