Simplified distributed block storage with strong consistency, like in Ceph
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#!/bin/bash -ex
. `dirname $0`/common.sh
dd if=/dev/zero of=./testdata/test_osd1.bin bs=2048 count=1 seek=$((1024*1024-1))
dd if=/dev/zero of=./testdata/test_osd2.bin bs=2048 count=1 seek=$((1024*1024-1))
dd if=/dev/zero of=./testdata/test_osd3.bin bs=2048 count=1 seek=$((1024*1024-1))
build/src/vitastor-osd --osd_num 1 --bind_address 127.0.0.1 --etcd_address $ETCD_URL $(node mon/simple-offsets.js --format options --device ./testdata/test_osd1.bin 2>/dev/null) &>./testdata/osd1.log &
OSD1_PID=$!
build/src/vitastor-osd --osd_num 2 --bind_address 127.0.0.1 --etcd_address $ETCD_URL $(node mon/simple-offsets.js --format options --device ./testdata/test_osd2.bin 2>/dev/null) &>./testdata/osd2.log &
OSD2_PID=$!
build/src/vitastor-osd --osd_num 3 --bind_address 127.0.0.1 --etcd_address $ETCD_URL $(node mon/simple-offsets.js --format options --device ./testdata/test_osd3.bin 2>/dev/null) &>./testdata/osd3.log &
OSD3_PID=$!
cd mon
npm install
cd ..
node mon/mon-main.js --etcd_url http://$ETCD_URL --etcd_prefix "/vitastor" &>./testdata/mon.log &
MON_PID=$!
$ETCDCTL put /vitastor/config/pools '{"1":{"name":"testpool","scheme":"xor","pg_size":3,"pg_minsize":2,"parity_chunks":1,"pg_count":1,"failure_domain":"osd"}}'
sleep 2
if ! ($ETCDCTL get /vitastor/config/pgs --print-value-only | jq -s -e '(. | length) != 0 and (.[0].items["1"]["1"].osd_set | sort) == ["1","2","3"]'); then
format_error "FAILED: 1 PG NOT CONFIGURED"
fi
if ! ($ETCDCTL get /vitastor/pg/state/1/1 --print-value-only | jq -s -e '(. | length) != 0 and .[0].state == ["active"]'); then
format_error "FAILED: 1 PG NOT UP"
fi
if ! cmp build/src/block-vitastor.so /usr/lib/x86_64-linux-gnu/qemu/block-vitastor.so; then
sudo rm -f /usr/lib/x86_64-linux-gnu/qemu/block-vitastor.so
sudo ln -s "$(realpath .)/build/src/block-vitastor.so" /usr/lib/x86_64-linux-gnu/qemu/block-vitastor.so
fi
$ETCDCTL put /vitastor/config/inode/1/1 '{"name":"debian9","size":'$((2048*1024*1024))'}'
qemu-img convert -S 4096 -p \
-f raw ~/debian9-kvm.raw \
-O raw "vitastor:etcd_host=127.0.0.1\:$ETCD_PORT/v3:image=debian9"
$ETCDCTL put /vitastor/config/inode/1/1 '{"name":"debian9@0","size":'$((2048*1024*1024))'}'
$ETCDCTL put /vitastor/config/inode/1/2 '{"parent_id":1,"name":"debian9","size":'$((2048*1024*1024))'}'
qemu-system-x86_64 -enable-kvm -m 1024 \
-drive 'file=vitastor:etcd_host=127.0.0.1\:'$ETCD_PORT'/v3:image=debian9',format=raw,if=none,id=drive-virtio-disk0,cache=none \
-device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x5,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1,write-cache=off,physical_block_size=4096,logical_block_size=512 \
-vnc 0.0.0.0:0
format_green OK