Disable test that targets WAL configuration.

src/bin/pg_basebackup/t/010_pg_basebackup.pl

@@ -2,7 +2,7 @@ use strict;
 use warnings;
 use Cwd;
 use TestLib;
-use Test::More tests => 34;
+use Test::More tests => 33;
 
 program_help_ok('pg_basebackup');
 program_version_ok('pg_basebackup');
@@ -31,19 +31,24 @@ system_or_bail 'pg_ctl', '-D', "$tempdir/pgdata", 'reload';
 command_fails(['pg_basebackup', '-D', "$tempdir/backup"],
 	'pg_basebackup fails without specifiying the target greenplum db id');
 
-open CONF, ">>$tempdir/pgdata/postgresql.conf";
-print CONF "max_wal_senders = 0\n";
-close CONF;
-restart_test_server;
-
-command_fails(
-	[ 'pg_basebackup', '-D', "$tempdir/backup", '--target-gp-dbid', '123' ],
-	'pg_basebackup fails because of WAL configuration');
 
 #
 # GPDB: The minimum value of max_wal_senders is 2 in GPDB
 # instead of 0 in Postgres.
 #
+# This test is disabled because it is difficult to
+# set up an environment that consumes all of the slots
+# without setting up mirrors.
+#
+# open CONF, ">>$tempdir/pgdata/postgresql.conf";
+# print CONF "max_wal_senders = 0\n";
+# close CONF;
+# restart_test_server;
+
+# command_fails(
+# 	[ 'pg_basebackup', '-D', "$tempdir/backup", '--target-gp-dbid', '123' ],
+# 	'pg_basebackup fails because of WAL configuration');
+
 open CONF, ">>$tempdir/pgdata/postgresql.conf";
 print CONF "max_wal_senders = 2\n";
 print CONF "wal_level = archive\n";