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Hello,<BR>
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we have a cups server and two clients and all are running RHEL v4 with cups v1.1.22<BR>
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We've noticed that when sending jobs from the clients, there is a noticeable 5-6 sec delay before the job number is finally displayed and for the lp command to finish.<BR>
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the cups server is setup NOT to use dns lookups and both cups server and client OSes are setup to use /etc/hosts file to resolve hostnames.<BR>
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here is a typical example:<BR>
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<span style="font-family: Courier New;">$time lp -d lptest /etc/hosts</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">request id is lptest-757975 (1 file(s))</span><br style="font-family: Courier New;"><br style="font-family: Courier New;"><span style="font-family: Courier New;">real 0m5.235s</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">user 0m0.007s</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">sys 0m0.007s<BR>
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Server and clients are running gigabit ethernet and there is no network related problem. <BR>
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<span style="font-family: Arial;">The delay is pretty consistent and it never seems to get more than 6 secs. Even when I have both servers sending jobs in a loop the delay from both is between 5-6 secs.<BR>
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An strace of the lp command shows that the client end is just waiting for the server to finish sending printer information to it. Most of the output was like this:<br style="font-family: Courier New;"><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 recv(3, "\1\1\0\1\0\0\0\1", 2048, 0) = 8</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 time(NULL) = 1190261046</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 recv(3, "\1G\0\22attributes-charset\0\5utf-8", 2048, 0) = 29</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 time(NULL) = 1190261046</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 recv(3, "H\0\33attributes-natural-language\0\5"..., 2048, 0) = 37</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 time(NULL) = 1190261046</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 recv(3, "\4#\0\rprinter-state\0\4\0\0\0\3", 2048, 0) = 23</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 time(NULL) = 1190261046</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 recv(3, "D\0\25printer-state-reasons\0\4none", 2048, 0) = 30</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 time(NULL) = 1190261046</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 recv(3, "A\0\25printer-state-message\0001Print "..., 2048, 0) = 75</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 time(NULL) = 1190261046</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 recv(3, "\"\0\31printer-is-accepting-jobs\0\1\1", 2048, 0) = 31</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 time(NULL) = 1190261046</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 recv(3, "!\0\17printer-up-time\0\4F\361\3615", 2048, 0) = 24</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 time(NULL) = 1190261046</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 recv(3, "!\0\22printer-state-time\0\4F\355<\237", 2048, 0) = 27</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 time(NULL) = 1190261046</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 recv(3, "1\0\24printer-current-time\0\v\7\327\t\24\4\4\5"..., 2048, 0) = 36</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 time(NULL) = 1190261046</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 recv(3, "!\0\20queued-job-count\0\4\0\0\0\0", 2048, 0) = 25</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 time(NULL) = 1190261046</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 recv(3, "B\0\fprinter-name\0\10hp8khume", 2048, 0) = 25</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 time(NULL) = 1190261046</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 recv(3, "B\0\22job-sheets-default\0\4noneB\0\0\0\4"..., 2048, 0) = 36</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 time(NULL) = 1190261046</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 recv(3, "\4#\0\rprinter-state\0\4\0\0\0\3", 2048, 0) = 23</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 time(NULL) = 1190261046</span><br style="font-family: Courier New;"><span style="font-family: Courier New;">27960 recv(3, "D\0\25printer-state-reasons\0\4none", 2048, 0) = 30</span><BR>
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Does anyone have any ideas ?<BR>
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Thanks.<BR>
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