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我有 12 个调制解调器连接到我的 HylaFax 服务器，似乎有时我的一些调制解调器卡在“正在发送作业”状态，直到我从调制解调器断开线路以终止作业。

调制解调器可以在没有任何通知的情况下永远保持这种状态，这是我在服务器跟踪中得到的关于工作被卡住的信息：

Jan 26 10:33:53.57: [29579]: SESSION BEGIN 000028267 79137356
Jan 26 10:33:53.57: [29579]: HylaFAX (tm) Version 6.0.6
Jan 26 10:33:53.57: [29579]: SEND FAX: JOB 5166 DEST 79137356 COMMID 000028267 DEVICE '/dev/ttyT38-23' FROM 'tuxfax <tuxfax@tuxfax.tux>' USER apache
Jan 26 10:33:53.57: [29579]: STATE CHANGE: RUNNING -> SENDING
Jan 26 10:33:53.57: [29579]: <-- [12:AT+FCLASS=1\r]
Jan 26 10:33:53.57: [29579]: --> [2:OK]
Jan 26 10:33:53.57: [29579]: DIAL 79137356
Jan 26 10:33:53.57: [29579]: <-- [10:ATDT79137356\r]
Jan 26 10:34:09.51: [29579]: --> [7:CONNECT]
Jan 26 10:34:17.55: [29579]: --> HDLC<40:FF C0 04 FF FF FF FF 73 1D 01 01 88 A1 B0 BB 00 00 BB BB 00 00 BB BB 00 00 00 00 00 00 00 00 B7 44 0D 00 00 09 00 E1 4F>
Jan 26 10:34:17.55: [29579]: --> [2:OK]
Jan 26 10:34:17.55: [29579]: REMOTE NSF "FF FF FF FF CE B8 80 80 11 85 0D DD 00 00 DD DD 00 00 DD DD 00 00 00 00 00 00 00 00 ED 22 B0 00 00 90 00"
Jan 26 10:34:17.55: [29579]: NSF remote fax equipment: unknown 
Jan 26 10:34:17.55: [29579]: <-- [9:AT+FRH=3\r]
Jan 26 10:34:17.56: [29579]: --> [7:CONNECT]
Jan 26 10:34:18.27: [29579]: --> HDLC<25:FF C0 02 CC 9C 4C AC 1C 4C 4C EC 04 04 04 04 04 04 04 04 04 04 04 04 8B C9>
Jan 26 10:34:18.27: [29579]: --> [2:OK]
Jan 26 10:34:18.27: [29579]: REMOTE CSI "77225292"
Jan 26 10:34:18.27: [29579]: <-- [9:AT+FRH=3\r]
Jan 26 10:34:18.28: [29579]: --> [7:CONNECT]
Jan 26 10:34:18.61: [29579]: --> HDLC<11:FF C8 01 00 73 1D 01 01 88 03 AE>
Jan 26 10:34:18.61: [29579]: --> [2:OK]
Jan 26 10:34:18.61: [29579]: REMOTE best rate 9600 bit/s
Jan 26 10:34:18.61: [29579]: REMOTE max A4 page width (215 mm)
Jan 26 10:34:18.61: [29579]: REMOTE max unlimited page length
Jan 26 10:34:18.61: [29579]: REMOTE best vres 15.4 line/mm
Jan 26 10:34:18.61: [29579]: REMOTE format support: MH, MR
Jan 26 10:34:18.61: [29579]: REMOTE best 20 ms, 10 ms/scanline
Jan 26 10:34:18.61: [29579]: USE 9600 bit/s
Jan 26 10:34:18.61: [29579]: SEND file "docq/doc5166.pdf;f0"
Jan 26 10:34:18.61: [29579]: USE A4 page width (215 mm)
Jan 26 10:34:18.61: [29579]: USE unlimited page length
Jan 26 10:34:18.61: [29579]: USE 3.85 line/mm
Jan 26 10:34:18.61: [29579]: USE 2-D MR
Jan 26 10:34:18.61: [29579]: USE 20 ms/scanline
Jan 26 10:34:18.61: [29579]: SEND training at v.29 9600 bit/s
Jan 26 10:34:18.61: [29579]: <-- [9:AT+FRS=7\r]
Jan 26 10:34:18.69: [29579]: --> [2:OK]
Jan 26 10:34:18.69: [29579]: <-- [9:AT+FTH=3\r]
Jan 26 10:34:18.69: [29579]: --> [7:CONNECT]
Jan 26 10:34:18.69: [29579]: <-- HDLC<23:FF C0 C2 1C 1C 1C 0C 2C CC 8C EC F4 0C AC EC 4C CC 04 0A F2 C2 22 04>
Jan 26 10:34:18.69: [29579]: <-- data [23]
Jan 26 10:34:18.69: [29579]: <-- data [2]
Jan 26 10:34:20.23: [29579]: --> [7:CONNECT]
Jan 26 10:34:20.23: [29579]: <-- HDLC<6:FF C8 C1 00 61 10>
Jan 26 10:34:20.23: [29579]: <-- data [6]
Jan 26 10:34:20.23: [29579]: <-- data [2]
Jan 26 10:34:20.53: [29579]: --> [2:OK]
Jan 26 10:34:20.53: [29579]: <-- [9:AT+FTS=7\r]
Jan 26 10:34:20.66: [29579]: --> [2:OK]
Jan 26 10:34:20.66: [29579]: <-- [10:AT+FTM=96\r]
Jan 26 10:34:20.66: [29579]: --> [7:CONNECT]
Jan 26 10:34:20.66: [29579]: <-- data [1024]
Jan 26 10:34:20.66: [29579]: <-- data [776]
Jan 26 10:34:20.66: [29579]: <-- data [2]
Jan 26 10:34:22.52: [29579]: --> [2:OK]
Jan 26 10:34:22.52: [29579]: <-- [9:AT+FRH=3\r]
Jan 26 10:34:23.47: [29579]: --> [7:CONNECT]
Jan 26 10:34:24.51: [29579]: --> HDLC<5:FF C8 21 57 BE>
Jan 26 10:34:24.51: [29579]: --> [2:OK]
Jan 26 10:34:24.51: [29579]: TRAINING succeeded
Jan 26 10:34:24.51: [29579]: <-- [9:AT+FRS=7\r]
Jan 26 10:34:24.59: [29579]: --> [2:OK]
Jan 26 10:34:24.59: [29579]: <-- [10:AT+FTM=96\r]
Jan 26 10:34:24.59: [29579]: --> [7:CONNECT]
Jan 26 10:34:24.59: [29579]: SEND begin page
Jan 26 10:34:24.59: [29579]: Reading MMR-compressed image file
Jan 26 10:34:24.60: [29579]: <-- data [1029]
Jan 26 10:34:24.60: [29579]: <-- data [1024]
Jan 26 10:34:24.60: [29579]: <-- data [1024]
Jan 26 10:34:24.60: [29579]: <-- data [1024]
Jan 26 10:34:24.60: [29579]: <-- data [1024]
Jan 26 10:34:24.60: [29579]: <-- data [1026]
Jan 26 10:34:24.60: [29579]: <-- data [1043]
Jan 26 10:34:24.60: [29579]: <-- data [1039]
Jan 26 10:34:24.60: [29579]: <-- data [1042]
Jan 26 10:34:24.60: [29579]: <-- data [1034]
Jan 26 10:34:24.60: [29579]: <-- data [1034]
Jan 26 10:34:24.60: [29579]: <-- data [1036]
Jan 26 10:34:24.60: [29579]: <-- data [1032]
Jan 26 10:34:24.60: [29579]: <-- data [1028]
Jan 26 10:34:24.60: [29579]: <-- data [1035]
Jan 26 10:34:24.60: [29579]: <-- data [1033]
Jan 26 10:34:24.60: [29579]: <-- data [1033]
Jan 26 10:34:24.60: [29579]: <-- data [1030]
Jan 26 10:34:24.60: [29579]: <-- data [1027]
Jan 26 10:34:24.60: [29579]: <-- data [1026]
Jan 26 10:34:24.60: [29579]: <-- data [1025]
Jan 26 10:34:24.60: [29579]: <-- data [1035]
Jan 26 10:34:24.60: [29579]: <-- data [1028]
Jan 26 10:34:24.60: [29579]: <-- data [1024]
Jan 26 10:34:24.60: [29579]: <-- data [1030]
Jan 26 10:34:24.60: [29579]: <-- data [264]
Jan 26 10:34:24.60: [29579]: SENT 25864 bytes of data
Jan 26 10:34:24.60: [29579]: <-- data [1031]
Jan 26 10:34:24.60: [29579]: <-- data [1038]
Jan 26 10:34:24.60: [29579]: <-- data [1039]
Jan 26 10:34:24.60: [29579]: <-- data [868]
Jan 26 10:34:24.60: [29579]: SENT 3931 bytes of data
Jan 26 10:34:24.60: [29579]: SEND 2D RTC
Jan 26 10:34:24.60: [29579]: <-- data [30]
Jan 26 10:34:24.60: [29579]: <-- data [2]
Jan 26 10:34:24.60: [29579]: SEND end page
Jan 26 10:34:49.80: [29579]: --> [2:OK]
Jan 26 10:34:49.80: [29579]: <-- [9:AT+FTS=9\r]
Jan 26 10:34:49.96: [29579]: --> [2:OK]
Jan 26 10:34:49.96: [29579]: SEND send EOP (no more pages or documents)
Jan 26 10:34:49.96: [29579]: <-- [9:AT+FTH=3\r]
Jan 26 10:34:49.96: [29579]: --> [7:CONNECT]
Jan 26 10:34:49.96: [29579]: <-- HDLC<3:FF C8 F4>
Jan 26 10:34:49.96: [29579]: <-- data [3]
Jan 26 10:34:49.96: [29579]: <-- data [2]
Jan 26 10:34:51.00: [29579]: --> [2:OK]
Jan 26 10:34:51.00: [29579]: <-- [9:AT+FRH=3\r]
Jan 26 10:34:51.87: [29579]: --> [7:CONNECT]
Jan 26 10:34:52.91: [29579]: --> HDLC<5:FF C8 5F C8 E7>
Jan 26 10:34:52.91: [29579]: --> [2:OK]
Jan 26 10:34:52.91: [29579]: SEND recv DCN (disconnect)
Jan 26 10:34:52.91: [29579]: Remote fax disconnected prematurely
Jan 26 10:34:52.91: [29579]: <-- [9:AT+FRS=7\r]
Jan 26 10:34:52.98: [29579]: --> [2:OK]
Jan 26 10:34:52.98: [29579]: <-- [9:AT+FTH=3\r]
Jan 26 10:34:52.99: [29579]: --> [7:CONNECT]
Jan 26 10:34:52.99: [29579]: <-- HDLC<3:FF C8 DF>
Jan 26 10:34:52.99: [29579]: <-- data [3]
Jan 26 10:34:52.99: [29579]: <-- data [2]

据我了解，调制解调器正在（永远）等待远程传真响应。

服务器配置为：HylaFax 6.0.6 / CentOS 6.3

问题是：

  1. 是否有任何配置参数可以避免在 Hylafax 中出现这种冻结？
  2. 作为一种快速的解决方法，我可以编写一个脚本来监视发送作业并终止在“发送作业”中持续的作业，但无论如何我都找不到终止正在运行的作业（不是排队的作业）
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1 回答 1

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在从事手机开发工作时，我只接触过一些传真，但我了解到传真是一个“测试、测试、测试”的问题，在开始工作时需要付出很大的努力（在 GSM 上运行时，传真代码甚至必须启动在某些情况下，由于一些不可能的时间问题，它期望收到的东西发送响应）。即使您按照规范实现了所有内容，也不能保证一切正常。大多数（全部？）移动网络和电话今天已经放弃对传真的支持是有原因的。

据我了解，调制解调器正在（永远）等待远程传真响应。

可能是这种情况，据我所知，远程传真机和 hylafax 都没有责任。实施一些监控服务似乎是处理这个问题的唯一明智和可靠的方法。

于 2013-03-30T23:10:35.263 回答