[SPDK] spdk_tgt error

[SPDK] spdk_tgt error

[omchavan6699]

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while running spdk_tgt it gives error
[2021-03-05 14:17:45.748148] Starting SPDK v21.04-pre git sha1 97ef870 / DPDK 20.11.0 initialization...
[2021-03-05 14:17:45.748380] [ DPDK EAL parameters: [2021-03-05 14:17:45.748414] spdk_tgt [2021-03-05 14:17:45.748436] --no-shconf [2021-03-05 14:17:45.748458] -c 0x1 [2021-03-05 14:17:45.748480] --log-level=lib.eal:6 [2021-03-05 14:17:45.748500] --log-level=lib.cryptodev:5 [2021-03-05 14:17:45.748522] --log-level=user1:6 [2021-03-05 14:17:45.748560] --iova-mode=pa [2021-03-05 14:17:45.748584] --base-virtaddr=0x200000000000 [2021-03-05 14:17:45.748605] --match-allocations [2021-03-05 14:17:45.748626] --file-prefix=spdk_pid8155 [2021-03-05 14:17:45.748647] ]
EAL: No available hugepages reported in hugepages-1048576kB
EAL: No legacy callbacks, legacy socket not created
[2021-03-05 14:17:45.975902] app.c: 538:spdk_app_start: *NOTICE*: Total cores available: 1
[2021-03-05 14:17:47.124421] reactor.c: 915:reactor_run: *NOTICE*: Reactor started on core 0
[2021-03-05 14:17:47.124533] accel_engine.c: 854:spdk_accel_engine_initialize: *NOTICE*: Accel engine initialized to use software engine.
[2021-03-05 14:17:48.035227] rpc.c: 186:spdk_rpc_listen: *ERROR*: RPC Unix domain socket path /var/tmp/spdk.sock in use. Specify another.
[2021-03-05 14:17:48.035301] rpc.c:  71:spdk_rpc_initialize: *ERROR*: Unable to start RPC service at /var/tmp/spdk.sock

how to fix it