Fix snapshotted bitmap reads not working in EC pools (fix #92)

2025-09-24 02:33:04 +03:00
parent 1e1f395947
commit cff08d2c72
4 changed files with 92 additions and 23 deletions
@@ -0,0 +1,39 @@
+#!/bin/bash -ex
+
+SCHEME=${SCHEME:-ec}
+. `dirname $0`/run_3osds.sh
+check_qemu
+
+build/src/cmd/vitastor-cli --etcd_address $ETCD_URL create -s 128M testchain
+
+dd if=/dev/zero of=./testdata/bin/mirror.bin bs=4k seek=$(((128*1024-4)/4)) count=1
+
+LD_PRELOAD="build/src/client/libfio_vitastor.so" \
+    fio -thread -name=test -ioengine=build/src/client/libfio_vitastor.so -bs=32k -direct=1 -iodepth=4 -end_fsync=1 -rw=randwrite \
+        -etcd=$ETCD_URL -image=testchain -mirror_file=./testdata/bin/mirror.bin -buffer_pattern=0xabcd -number_ios=1024
+
+build/src/cmd/vitastor-cli --etcd_address $ETCD_URL snap-create testchain@snap1
+
+LD_PRELOAD="build/src/client/libfio_vitastor.so" \
+    fio -thread -name=test -ioengine=build/src/client/libfio_vitastor.so -bs=4k -direct=1 -iodepth=4 -end_fsync=1 -rw=randwrite -number_ios=32 \
+        -etcd=$ETCD_URL -image=testchain -mirror_file=./testdata/bin/mirror.bin -buffer_pattern=0xabcd
+
+# Now read from the snapshot
+
+dd if=/dev/zero of=./testdata/bin/res.bin bs=4k seek=$(((128*1024-4)/4)) count=1
+
+build/src/cmd/vitastor-cli --etcd_address $ETCD_URL dd iimg=testchain of=./testdata/bin/res.bin bs=$((PG_DATA_SIZE*128))k iodepth=4 --log_level 10
+
+cmp ./testdata/bin/res.bin ./testdata/bin/mirror.bin
+
+build/src/cmd/vitastor-cli --etcd_address $ETCD_URL dd iimg=testchain of=./testdata/bin/res.bin bs=$((PG_DATA_SIZE*128))k iodepth=4 conv=nosparse
+
+cmp ./testdata/bin/res.bin ./testdata/bin/mirror.bin
+
+qemu-img convert -p \
+    -f raw "vitastor:etcd_host=127.0.0.1\:$ETCD_PORT/v3:image=testchain" \
+    -O raw ./testdata/bin/res.bin
+
+cmp ./testdata/bin/res.bin ./testdata/bin/mirror.bin
+
+format_green OK