Assertion error: start_block == end_block - 1 about infinit

[tarlano]

I had the volume block_size set to a small 1KB. After increasing it back to the default 1.04MB I am seeing better performance and possibly it will alleviate the block overrun in the memo FileHandler method.

To reproduce this issue you maybe able to set the block_size to small 1K (1024) and write several large files.

[Dimrok]

Hi @tarlano.

It's a known issue, you shouldn't use a block size smaller than 64KB (source @mnottale) for now (I'll add that to the documentation).
You can't write blobs of data larger than twice the block size (source @mnottale).

By experimenting, I found that, with my fuse configuration:

• I wasn't able to reproduce with block_size bigger than 2KB.
• The limit of data you can write with a block size of 1024 is 3024.

Here's a minimal test case to reproduce.

set -x

rm -rf .local

export MOUNTPOINT="$PWD/mountpoint"
export BLOCK_SIZE=2

infinit user create
infinit silo create filesystem silo
infinit network create --silo silo network
infinit volume create --network network --block-size $BLOCK_SIZE volume
infinit volume mount --name volume --mountpoint "$MOUNTPOINT" --cache --allow-root-creation &

sleep 1

DATA_SIZE=$(expr $BLOCK_SIZE \* 2)
echo $(printf '=%.0s' $(eval echo "{1..$DATA_SIZE}"))  >> "$MOUNTPOINT/data"