[SPDK] Re: Installation of Spdk and running bdev command

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> 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 

    > -----Original Message-----
    > From: omchavan6699(a)gmail.com <omchavan6699(a)gmail.com>
    > 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(a)d1560g9-12-
    > vm20 spdk] #
    > 
    > ased on Open CAS Framework - a high performance block storage cachina
    > meta-librar
    > 
    > 3/
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