xcat-core

mirror of https://github.com/xcat2/xcat-core.git synced 2024-11-21 09:02:00 +00:00

Table of Contents

Background
Solution
Plan

The main purpose of this design is to help solve the issue of #4055 [1].

[1] https://github.com/xcat2/xcat-core/issues/4055

Background

As the http async perl library do not provide the interface to upload large attachment, xcat is using curl command to upload file to the openbmc side. As shell command is called in block mode, the original implementation call only upload files sequentially. For a large cluster, this is unacceptable.

Solution

This design hope to reuse the old frame as far as possible. The shell command will be called within the child process for each node. When the command ends, the parent process will extract the node from process id and continue the state machine depends on its return code. Some example like below:

while (1) { 
        last unless ($wait_node_num);
        while (my ($response, $handle_id) = $async->wait_for_next_response) {
            deal_with_response($handle_id, $response);
        }
        while ((my $cpid = waitpid(-1, WNOHANG)) > 0) {
            if ($child_node_map{$cpid}) {
                my $node = $child_node_map{$cpid};
                my $rc = $? >> 8;
                if ($rc != 0) {
                    $wait_node_num--;
                } else {
                    $status_info{ $node_info{$node}{cur_status} }->{process}->($node, undef);
                }
                delete $child_node_map{$cpid};
            }
        }
    }

Plan

Complete the state machine, fork and wait framework for the firmware upload.
Reuse this framework to upload the ssh key ( By Xu Wei)
error handling for uploading/activating for rflash https://github.com/xcat2/xcat-core/issues/4063
Run rflash in background https://github.com/xcat2/xcat-core/issues/3671

News

Apr 22, 2016: xCAT 2.11.1 released.
Mar 11, 2016: xCAT 2.9.3 (AIX only) released.
Dec 11, 2015: xCAT 2.11 released.
Nov 11, 2015: xCAT 2.9.2 (AIX only) released.
Jul 30, 2015: xCAT 2.10 released.
Jul 30, 2015: xCAT migrates from sourceforge to github
Jun 26, 2015: xCAT 2.7.9 released.
Mar 20, 2015: xCAT 2.9.1 released.
Dec 12, 2014: xCAT 2.9 released.
Sep 5, 2014: xCAT 2.8.5 released.
May 23, 2014: xCAT 2.8.4 released.
Jan 24, 2014: xCAT 2.7.8 released.
Nov 15, 2013: xCAT 2.8.3 released.
Jun 26, 2013: xCAT 2.8.2 released.
May 17, 2013: xCAT 2.7.7 released.
May 10, 2013: xCAT 2.8.1 released.
Feb 28, 2013: xCAT 2.8 released.
Nov 30, 2012: xCAT 2.7.6 released.
Oct 29, 2012: xCAT 2.7.5 released.
Aug 27, 2012: xCAT 2.7.4 released.
Jun 22, 2012: xCAT 2.7.3 released.
May 25, 2012: xCAT 2.7.2 released.
Apr 20, 2012: xCAT 2.7.1 released.
Mar 19, 2012: xCAT 2.7 released.
Mar 15, 2012: xCAT 2.6.11 released.
Jan 23, 2012: xCAT 2.6.10 released.
Nov 15, 2011: xCAT 2.6.9 released.
Sep 30, 2011: xCAT 2.6.8 released.
Aug 26, 2011: xCAT 2.6.6 released.
May 20, 2011: xCAT 2.6 released.
Feb 14, 2011: Watson plays on Jeopardy and is managed by xCAT!
xCAT Release Notes Summary
xCAT OS And Hw Support Matrix
xCAT Test Environment Summary

History

Oct 22, 2010: xCAT 2.5 released.
Apr 30, 2010: xCAT 2.4 is released.
Oct 31, 2009: xCAT 2.3 released.
xCAT's 10 year anniversary!
Apr 16, 2009: xCAT 2.2 released.
Oct 31, 2008: xCAT 2.1 released.
Sep 12, 2008: Support for xCAT 2
can now be purchased!
June 9, 2008: xCAT breaths life into
(at the time) the fastest
supercomputer on the planet
May 30, 2008: xCAT 2.0 for Linux
officially released!
Oct 31, 2007: IBM open sources
xCAT 2.0 to allow collaboration
among all of the xCAT users.
Oct 31, 1999: xCAT 1.0 is born!
xCAT started out as a project in
IBM developed by Egan Ford. It
was quickly adopted by customers
and IBM manufacturing sites to
rapidly deploy clusters.