如何修复pymssql中的“ 20002，严重性9：Adaptive Server连接失败”错误

Question

通过 SQL Server Management Studio 成功连接到数据库。但是使用pymssql连接失败：

pymssql错误：

  

pymssql.OperationalError：（17892，“由于触发可执行文件登录而导致登录'xxx'的登录失败。DB-Lib错误消息20018，严重性14：\ n常规SQL Server错误：从SQL Server检查混乱年龄\ nDB-库错误消息20002，严重性9：\ nAdaptive Server连接失败（xxxx \ xxxx）\ n“）

版本信息：

SQL Server版本为 2014 12.0.6024.0 。

Linux服务器操作系统是 SUSE Linux Enterprise Server 12（x86_64）。

pymssql版本：pymssql-2.1.4

./ tsql -C：

Compile-time settings (established with the "configure" script)
                            Version: freetds v1.00.9
             freetds.conf directory: /usr/local/freetds/etc
     MS db-lib source compatibility: yes
        Sybase binary compatibility: no
                      Thread safety: yes
                      iconv library: yes
                        TDS version: 7.1
                              iODBC: no
                           unixodbc: yes
              SSPI "trusted" logins: no
                           Kerberos: no
                            OpenSSL: yes
                             GnuTLS: no
                               MARS: no

更多freetds.log

util.c:375:tdserror: returning TDS_INT_CANCEL(2)
net.c:216:Connecting to x.x.x.x port 1433 (TDS version 4.2)
net.c:242:tds_open_socket: connect(2) returned "Operation now in progress"
net.c:343:tds_open_socket() succeeded
packet.c:741:Sending packet
......
token.c:306:looking for login token, got  aa(ERROR)
token.c:125:tds_process_default_tokens() marker is aa(ERROR)
token.c:2328:tds_process_info() reading message 17892 from server
token.c:2403:Msg 17892, Severity 14, State 1, Server xxxxx\xxxxx, Line 1
Logon failed for login 'xxxx' due to trigger execution.
token.c:2417:tds_process_info() returning TDS_SUCCESS
token.c:306:looking for login token, got  fd(DONE)
token.c:125:tds_process_default_tokens() marker is fd(DONE)
token.c:2065:tds_process_end: more_results = 0
                was_cancelled = 0
                error = 1
                done_count_valid = 0
token.c:2082:                rows_affected = 0
token.c:2085:tds_process_end() state set to TDS_IDLE
token.c:415:tds_process_login_tokens() returning TDS_FAIL
login.c:530:login packet accepted
query.c:3796:tds_disconnect()
util.c:165:Changed query state from IDLE to DEAD
util.c:322:tdserror(0x7f676bb19200, 0x228d1c0, 20002, 0)
util.c:358:tdserror: client library not called because either tds_ctx (0x7f676bb19200) or tds_ctx->err_handler is NULL
util.c:375:tdserror: returning TDS_INT_CANCEL(2)
util.c:322:tdserror(0x1cca6f0, 0x228d1c0, 20002, 110)
dblib.c:7949:dbperror(0x22d8430, 20002, 110)
dblib.c:8017:dbperror: Calling dblib_err_handler with msgno = 20002; msg->msgtext = "Adaptive Server connection failed (xxxxx\xxxxx)"
dblib.c:8039:dbperror: dblib_err_handler for msgno = 20002; msg->msgtext = "Adaptive Server connection failed (xxxxx\xxxxx)" -- returns 2 (INT_CANCEL)
util.c:352:tdserror: client library returned TDS_INT_CANCEL(2)
util.c:375:tdserror: returning TDS_INT_CANCEL(2)
dblib.c:1260:tdsdbopen: tds_connect_and_login failed for "xxxxx\xxxxx"!
dblib.c:1476:dbclose(0x22d8430)
dblib.c:241:dblib_del_connection(0x7f676bd29860, 0x228d1c0)
mem.c:644:tds_free_all_results()
dblib.c:288:dblib_release_tds_ctx(1)
dblib.c:5881:dbfreebuf(0x22d8430)
dblib.c:749:dbloginfree(0x21bce80)
Traceback (most recent call last):
  File "src/pymssql.pyx", line 642, in pymssql.connect
pymssql.OperationalError: (20002, 'DB-Lib error message 20002, severity 9:\nAdaptive Server connection failed (xxxxx\xxxxx)\nNet-Lib error during Connection timed out (110)\n')

tsql -H

  

LC_CTYPE = en_US.UTF-8; LC_NUMERIC = C; LC_TIME = C; LC_COLLATE = C; LC_MONETARY = C; LC_MESSAGES = C; LC_PAPER = C; LC_NAME = C; LC_ADDRESS = C; LC_TELEPHONE = C; LC_MEASUREMENT = C ; LC_IDENTIFICATION = C“语言环境字符集是” UTF-8“，使用来自xxxx \ xxxxx第1行的默认字符集” UTF-8“消息18456（严重性14，状态1）消息：” xxxx“用户登录失败。

该如何解决此问题？