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Using "--memory" breaks fakemachine backend #509

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tboehler1 opened this issue Jun 20, 2024 · 3 comments · May be fixed by #510
Open

Using "--memory" breaks fakemachine backend #509

tboehler1 opened this issue Jun 20, 2024 · 3 comments · May be fixed by #510

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@tboehler1
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Some time in the last 2 months I've been unable to use debos with the "--memory" flag. The fakemachine backend keeps running into OOM errors, hangs completely, and times out after a few minutes.

To reproduce:

$ cat repro.yaml
architecture: arm64

actions:
  - action: run
    command: "echo 'Hello World'"

Run this using debos --memory 8192 repro.yaml

Outputs:
@flxzt
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flxzt commented Jun 30, 2024

Did you try using 8192MB ? Without a unit I think it parses as only 8192 bytes (see here)

@tboehler1
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That was indeed the problem and when specifying 8192MB it works. Sorry for the noise!

obbardc added a commit that referenced this issue Jul 1, 2024
@obbardc
debos: Warn if parsed memory/scratchsize may be too small
4ba7ea3 
Since the --memory and --scratchsize arguments are parsed with human-readable
suffixes into bytes (e.g 2048MB or 2GB), if a user does not put a suffix
the arguments are parsed as bytes which can cause issues later when a user
sets the memory to be 2048 assuming it will be parsed as MB.

Change the documentation to match reality and also add a warning if the user
has set either parameter less than the recommended default.

Closes: #509
Signed-off-by: Christopher Obbard <[email protected]>
@obbardc obbardc linked a pull request Jul 1, 2024 that will close this issue
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@obbardc
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obbardc commented Jul 1, 2024

I created #510 to hopefully warn when a user forgets to add a suffix and not change existing behaviour. :-)

@obbardc obbardc reopened this Jul 1, 2024
obbardc added a commit that referenced this issue Jul 1, 2024
@obbardc
debos: Warn if parsed memory/scratchsize may be too small
13f6822 
Since the --memory and --scratchsize arguments are parsed with human-readable
suffixes into bytes (e.g 2048MB or 2GB), if a user does not put a suffix
the arguments are parsed as bytes which can cause issues later when a user
sets the memory to be 2048 assuming it will be parsed as MB.

Change the documentation to match reality and also add a warning if the user
has set either parameter less than the recommended default.

Closes: #509
Signed-off-by: Christopher Obbard <[email protected]>
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debos: Warn if parsed memory/scratchsize may be too small go-debos/debos
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@obbardc @flxzt @tboehler1