1) yes, this is correct (just as you do it on command line, ie, multiple flags separated by blank)
worker childopts : "-Xms4g -Djava.net.preferIPv4Stack=true" 2) still nor sure what you mean... if you get GC overhead limit exceed it means that the GC tries to clean up objects to free memory, but no objects could be deleted (and GC tried multiple time without success). This is a Java thing and not directly related to Storm. You should be able to tackle it, by increasing the JVM memory, as you already do by (1) :) -Matthias On 04/16/2016 01:29 PM, sam mohel wrote: > thanks but what if i want to write this also in worker childopts : > "-Djava.net.preferIPv4Stack=true" > > is it will be like > > worker childopts : "-Xms4g -Djava.net.preferIPv4Stack=true" ? > > for Second question i got this statemnent by searching for my problem with > GC overhead limited exceed but didn't know how can i do it ? > > > On Sat, Apr 16, 2016 at 1:22 PM, Matthias J. Sax <[email protected]> wrote: > >> use parameter worker.childopts >> >> worker.childopts: "-Xms4g" >> >> Not sure what you mean by your second question... >> >> -Matthias >> >> On 04/16/2016 06:34 AM, sam mohel wrote: >>> i want to increase size of heap for worker to -Xms4G how can i write it >> in >>> storm.yaml ? >>> >>> and how can i set the number of CPU consuming bolts to the amount of >> cores >>> ? >>> >>> Thanks for any help >>> >> >> >
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