Hi, JSON RPC is an interface to configure a running SPDK application. Please make sure one (ex. ./build/bin/spdk_tgt) is started before issuing any RPC. Thanks, Tomek > -----Original Message----- > From: omchavan6699(a)gmail.com <omchavan6699(a)gmail.com&gt; > Sent: Wednesday, March 3, 2021 9:24 AM > To: spdk(a)lists.01.org > Subject: [SPDK] Installation of Spdk and running bdev command > > I installed Spdk > git clone https://github.com/spdk/spdk > cd spdk > git submodule update --init > sudo scripts/pkgdep.sh --all > ./configure > make > /test/unit/unittest.sh > But not able to run > RPC.py bdev_aio_create /dev/sda aio > It is not running > scripts/rpc.py bdev_aio_create /dev/sda aio ev/sda Traceback (most recent > call last): File "/root/spdk/scripts/rpc/client.py", line 71, in connect > > device self.sock.connect ( (addr, port)) socket.gaierror: [Errno -2] Name or > service not known > > mp/fil, During handling of the above exception, another exception occurred: > > e deviceTraceback (most recent call last): File "scripts/rpc.py", line 2693, in > <module> > > odev_aid conn_retries=args.conn_retries) File > "7root/spdk/scripts/rpc/client.py", line 47, in init > > ioe > > self. connect (addr, port) > > File "/root/spdk/scripts/rpc/client.py", line 76, in _connect. "Error details: > %s" (addr, ex)) > > rpc.client..JSONRPCException: Error while connecting to /var/tmp/spdk.sock > ev Error details: [Errno -2] Name or service not known [root@d1560g9-12- > vm20 spdk] # > > ased on Open CAS Framework - a high performance block storage cachina > meta-librar > > 3/ > _______________________________________________ > SPDK mailing list -- spdk(a)lists.01.org > To unsubscribe send an email to spdk-leave(a)lists.01.org

We could do a better job of displaying the error conditions, when rpc.py is unable to connect because no SPDK application is running. https://review.spdk.io/gerrit/c/spdk/spdk/+/6754 should make it better. -Jim On 3/3/21, 1:47 AM, "Zawadzki, Tomasz" <tomasz.zawadzki(a)intel.com&gt; wrote: Hi, JSON RPC is an interface to configure a running SPDK application. Please make sure one (ex. ./build/bin/spdk_tgt) is started before issuing any RPC. Thanks, Tomek _______________________________________________ SPDK mailing list -- spdk(a)lists.01.org To unsubscribe send an email to spdk-leave(a)lists.01.org