Forum Discussion
Robert_Reznicek
Nimbostratus
Nimbostratusprinting variables values
Is it possible to use another method for printing, that log command?
I need to print items of array for debug purposes (approx. 1000 items) and i found out, that when using log command in foreach loop, some entries are omitted, because of syslog limitations. I also tried to use HTTP:respond and return the values in "content" section, but this is not possible.
I suppose it is not possible to use "puts" command and define somehow channel for printing.
4 Replies
hoolioCirrostratus
Hi Robert,
On 10.1, logging ~100-400 lines in a loop seems to work. Beyond that, you start seeing throttling. Your idea of using HTTP::respond seems to work in a simple test. What issue did you see with it?when RULE_INIT { load up an array for {set i 0} {$i < 1000} {incr i} { set ::arr($i) "value$i" log local0. "\$i-1000: $i" } log local0. "size: [array size ::arr]" } when HTTP_REQUEST { HTTP::respond 200 content [array get ::arr] }
Aaron
Robert_ReznicekHi Aaron,
thank you for your help. I used nearly the same piece of code in the HTTP::respond:HTTP::respond 200 content [array names ::arr]
but the output is truncated (i only get 4268 chars).
I tried to use loop behind the HTTP::respond and print the array entry by entry, but this doesn't work.
I also tried to append the entries in one string and then print it, but there is limitation for length of the string.- hoolioThat's odd. In 10.0.1, I've received as much as 1.7MB using this:
when RULE_INIT { for {set i 0} {$i < 100000} {incr i} { set ::arr($i) "value$i" log local0. "\$i-1000: $i" } log local0. "size: [array size ::arr]" } when HTTP_REQUEST { HTTP::respond 200 content [array get ::arr] }
$ curl -s 10.42.2.10 |wc -m
1677779 (~1.6Mb)
Aaron - Robert_ReznicekI found it, I put "drop" command behind the HTTP::respond. When removed, i get the whole array.
BTW, I'm still curious why the drop was executed before the HTTP::respond finished execution.
Anyway, thank you very much for your help Aaron!
Robert
