example_output_no_proxy.log

$ ./grpc_proxy_bug.sh
Putting /grpc_proxy_bug/001
OK
Putting /grpc_proxy_bug/002
OK
Putting /grpc_proxy_bug/003
OK
Putting /grpc_proxy_bug/004
OK
Putting /grpc_proxy_bug/005
OK
Putting /grpc_proxy_bug/006
OK
Putting /grpc_proxy_bug/007
OK
Putting /grpc_proxy_bug/008
OK
Putting /grpc_proxy_bug/009
OK
Putting /grpc_proxy_bug/010
OK
Compacting to revision 132
compacted revision 132
Putting /grpc_proxy_bug/001
OK
Putting /grpc_proxy_bug/003
OK
Putting /grpc_proxy_bug/005
OK
Putting /grpc_proxy_bug/007
OK
Putting /grpc_proxy_bug/009
OK
Range read over all the keys:
/grpc_proxy_bug/001
Overwrite 1
/grpc_proxy_bug/002
Write 2
/grpc_proxy_bug/003
Overwrite 3
/grpc_proxy_bug/004
Write 4
/grpc_proxy_bug/005
Overwrite 5
/grpc_proxy_bug/006
Write 6
/grpc_proxy_bug/007
Overwrite 7
/grpc_proxy_bug/008
Write 8
/grpc_proxy_bug/009
Overwrite 9
/grpc_proxy_bug/010
Write 10

example_output_with_proxy.log

$ ./grpc_proxy_bug.sh
Putting /grpc_proxy_bug/001
OK
Putting /grpc_proxy_bug/002
OK
Putting /grpc_proxy_bug/003
OK
Putting /grpc_proxy_bug/004
OK
Putting /grpc_proxy_bug/005
OK
Putting /grpc_proxy_bug/006
OK
Putting /grpc_proxy_bug/007
OK
Putting /grpc_proxy_bug/008
OK
Putting /grpc_proxy_bug/009
OK
Putting /grpc_proxy_bug/010
OK
Compacting to revision 117
compacted revision 117
Putting /grpc_proxy_bug/001
OK
Putting /grpc_proxy_bug/003
OK
Putting /grpc_proxy_bug/005
OK
Putting /grpc_proxy_bug/007
OK
Putting /grpc_proxy_bug/009
OK
Range read over all the keys:
Error:  etcdserver: mvcc: required revision has been compacted

grpc_proxy_bug.sh

#! /bin/bash

set -ueo pipefail

export ETCDCTL_API=3 
PFX="/grpc_proxy_bug/"

# write to 10 keys in a range
for i in $(seq 1 10); do
    KEY=$(printf "$PFX%03d" $i)
    echo "Putting $KEY"
    etcdctl --endpoints=$ETCD_ENDPOINTS --user=$ETCD_USERPASS put $KEY "Write $i"
done

# now manually compact, this will compact the servers at current index
REV=$(etcdctl --endpoints=$ETCD_ENDPOINTS --user=$ETCD_USERPASS endpoint status --write-out="json" |egrep -o '"revision":[0-9]*' | egrep -o '[0-9]+' | head -1)
echo "Compacting to revision $REV"
etcdctl --endpoints=$ETCD_ENDPOINTS --user=$ETCD_USERPASS compaction --physical $REV

# now we write out "seed" data for the next test which is a sparse set of the key range from before
# we'll arbitrary pick odd number to write to now
for i in $(seq 1 2 10); do
    KEY=$(printf "$PFX%03d" $i)
    echo "Putting $KEY"
    etcdctl --endpoints=$ETCD_ENDPOINTS --user=$ETCD_USERPASS put $KEY "Overwrite $i"
done

# now range read the range, this should trigger the error compacted version error
echo "Range read over all the keys:"
etcdctl --endpoints=$ETCD_ENDPOINTS --user=$ETCD_USERPASS get --consistency=s $(printf "$PFX%03d" 1) $(printf "$PFX%03d" 11)