ksh - pipe cannot write to output -


i use line in ksh (not ksh93) under aix 6.1

# initiate earlier linestart=235559 cst_tracortaillook=128 filename=/longpathwithslash/logs/file.log # /longpathwithslash/logs/file.log -> file_log.27jun2014-00:00:00 # file 250.000 line , 60.000.000 bytes or more   # failing line tail -n +$(( ${linestart} - ${cst_tracortaillook} + 1 )) ${filename} |     someaction

running in direct session, no problem, return result (test wc -l after pipe return number of line) running , agent (tivoli monitoring agent) line return:

tail: 0652-046 cannot write output. there no process read data written pipe.

loking limitation found less limitation (ulimit-a) agent direct session

                     direct      agent time(seconds)        unlimited   unlimited file(blocks)         unlimited   unlimited data(kbytes)         131072      unlimited stack(kbytes)        32768       32768 memory(kbytes)       32768       32768 coredump(blocks)     2097151     unlimited nofiles(descriptors) 2000        unlimited threads(per process) unlimited   unlimited processes(per user)  unlimited   unlimited

i found several issue on aix 5.3 limitation 2 gb not size nor os version

eventually, there alternative without passing through temporary file ?

when someaction after pipe finished before tail finished, have broken pipe. make sure someaction wait until tail finished.


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