On 22.07.2015 21:02, Scott Dowdle wrote:
Compare two situations:
1) Live migration not used at all
2) Live migration used and containers migrated between HN
In which situation possibility to obtain kernel panic is higher?
If you say "possibility are equals" this means
what OpenVZ live migration code has no errors at all.
This is silly logic.
Why?
The less parts of kernel you use - the less possibility
to got kernel panic. If first case use only 25% of kernel code
and second variant use 50% of kernel code and if we suppose
what bugs are distributed uniformly - in second case
we have 2x possibility to got kernel panic.
I know this by writing unit tests: when making my code 100%
covered by unit tests - the most bugs I found in last 2% of code.
Until some code fragments/branches not used in unit tests
- I can't see and feel bugs exists in such code fragments.
I could easily reproduce:
Compare two situations:
1) Don't run any containers
2) Run some containers
In which situation possibility to obtain kernel panic is higher?
in (2)
If you say "possibility are equals" this means what OpenVZ container code
has no errors at all.
I can't say this.
--
Best regards,
Gena
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