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ZTS: send-c_volume is flaky
We use block_device_wait to wait for the zvol block device to actually appear, and we log the result of the dd calls by using an intermediate file. Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: John Wren Kennedy <john.kennedy@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Paul Dagnelie <pcd@delphix.com> Closes #14767
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@ -29,6 +29,7 @@
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function cleanup
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{
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rm $BACKDIR/copy
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log_must_busy zfs destroy -r $vol
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cleanup_pool $POOL2
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}
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@ -60,7 +61,9 @@ log_must eval "zfs recv -d $POOL2 <$BACKDIR/full"
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verify_stream_size $BACKDIR/full $vol
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verify_stream_size $BACKDIR/full $vol2
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md5=$(dd if=$voldev2 bs=1024k count=$megs 2>/dev/null | md5digest)
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block_device_wait $voldev2
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log_must dd if=$voldev2 of=$BACKDIR/copy bs=1024k count=$megs
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md5=$(md5digest $BACKDIR/copy)
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[[ $md5 = $md5_1 ]] || log_fail "md5 mismatch: $md5 != $md5_1"
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# Repeat, for an incremental send
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@ -72,7 +75,9 @@ log_must eval "zfs recv -d $POOL2 <$BACKDIR/inc"
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verify_stream_size $BACKDIR/inc $vol 90 $vol@snap
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verify_stream_size $BACKDIR/inc $vol2 90 $vol2@snap
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md5=$(dd skip=$megs if=$voldev2 bs=1024k count=$megs 2>/dev/null | md5digest)
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block_device_wait $voldev2
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log_must dd skip=$megs if=$voldev2 of=$BACKDIR/copy bs=1024k count=$megs
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md5=$(md5digest $BACKDIR/copy)
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[[ $md5 = $md5_2 ]] || log_fail "md5 mismatch: $md5 != $md5_2"
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log_pass "Verify compressed send works with volumes"
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