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Cannot use reboot command to all nodes from wibed server #4

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ghost opened this issue Aug 14, 2015 · 4 comments
Open

Cannot use reboot command to all nodes from wibed server #4

ghost opened this issue Aug 14, 2015 · 4 comments

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@ghost
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ghost commented Aug 14, 2015

[Perhaps is a known issue, but let's have it noted.]
Reboot command cannot be executed because needs confirmation that does not arrive.

@ghost
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ghost commented Aug 14, 2015

sorry, this is an issue of wibed server that I don't remember where it is.

@ghost ghost closed this as completed Aug 14, 2015
@bittorf
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bittorf commented Aug 17, 2015

can you workaround this with

echo c >/proc/sysrq-trigger

@ghost
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ghost commented Aug 17, 2015

Great! I cannot test now (no wibed system near me), but seems that would be better if:
"I generally sync(s), umount(u), then reboot(b) when my system locks."

So, should be: echo sub > /proc/sysrq-trigger

yes, should be https://twitter.com/qolund/status/600250659603148800

documentation source: https://www.kernel.org/doc/Documentation/sysrq.txt
for c says: "Will perform a system crash by a NULL pointer dereference. A crashdump will be taken if configured."

@emmdim
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emmdim commented Aug 17, 2015

Hi, sorry for the delay but I am on vacation and have no laptop.

The reboot command causes an exception to the node-controller communication system. Though I cannot test it now, I think reboot could work with a command that would execute in the background: a delay of 20 seconds and then reboot. I will reopen the issue. And when I am back from vacation i will try to solve it in a more generic way.

@emmdim emmdim reopened this Aug 17, 2015
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