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[2/2] nfstest: python3: run python3 explicitly on client

Message ID TY2PR01MB2124D8713185068C2DDE399E89F39@TY2PR01MB2124.jpnprd01.prod.outlook.com (mailing list archive)
State New, archived
Headers show
Series [1/2] nfstest: python3: fix rexec error while calling self.process.stdin.write | expand

Commit Message

suy.fnst@fujitsu.com Aug. 6, 2021, 2:48 a.m. UTC 
In CentOS8 like distros, python is still linked to python2,
the the following occrus:

  # ./nfstest_delegation --nfsversion=4 -e /nfsroot --server \
	192.168.220.118 --client 192.168.220.104 \
	--trcdelay 10 --runtest recall03

    FAIL: Traceback (most recent call last):
            File "./nfstest_delegation", line 987, in recall_deleg_test
              self.get_deleg_remote()
            File "./nfstest_delegation", line 469, in get_deleg_remote
              fdko = self.rexecobj.run(os.open, self.clientobj.abspath(self.files[0]), os.O_RDONLY)
            File "/root/nfstest/nfstest/rexec.py", line 426, in run
              return self._send_cmd("run", *kwts, **kwds)
            File "/root/nfstest/nfstest/rexec.py", line 350, in _send_cmd
              return self.results()
            File "/root/nfstest/nfstest/rexec.py", line 395, in results
              res = self.conn.recv()
            File "/usr/lib64/python3.6/multiprocessing/connection.py", line 254, in recv
              buf = self._recv_bytes()
            File "/usr/lib64/python3.6/multiprocessing/connection.py", line 411, in _recv_bytes
              buf = self._recv(4)
            File "/usr/lib64/python3.6/multiprocessing/connection.py", line 387, in _recv
              raise EOFError
          EOFError

  Traceback (most recent call last):
    File "<string>", line 1, in <module>
    File "<string>", line 91, in <module>
    File "<string>", line 39, in start
  ValueError: unsupported pickle protocol: 3

Python3 uses pickle to do object serializations in protocl 3,
but pickle in python2 doesn't support the protocol.

Fix it by running python3 explicitly on client.

Signed-off-by: Su Yue <suy.fnst@fujitsu.com>
---
 nfstest/rexec.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/nfstest/rexec.py b/nfstest/rexec.py
index 51586c5..5c206e6 100644
--- a/nfstest/rexec.py
+++ b/nfstest/rexec.py
@@ -276,7 +276,7 @@  class Rexec(BaseObj):
             # Execute minimal python script to execute the source code
             # given in standard input
             pysrc = "import sys; exec(sys.stdin.read(%d))" % len(server_code)
-            cmdlist = ["python", "-c", repr(pysrc)]
+            cmdlist = ["python3", "-c", repr(pysrc)]
 
             if sudo:
                 cmdlist.insert(0, "sudo")