Hi, The past weeks I’ve been stumped trying to track down a severe memory leak which prevents releasing 1481.
I have a hard time tracking down where and why exactly it happens, therefore I’d be very grateful for your help. The following shows how to reproduce the problem on GNU/Linux: Getting Freenet 1481 to crash with an Out-of-Memory error within less than 30 minutes. The gist is: Upload a file. tee freenet-1481-OOM-reproduction.sh << EOF wget https://github.com/freenet/fred/releases/download/build01481/new_installer_offline_1481.jar java -jar new_installer_offline_1481.jar # click through the setup wizard and the in-browser first-run wizard, give Freenet high upload bandwidth (i.e. 164kiB/s) # give freenet time to start the FCP server sleep 180 # prepare a file to upload INSERTFILE="$(mktemp /tmp/insert.temp.XXXXXXXXXX)" head -c 100M < /dev/urandom > "$INSERTFILE" IDENT=testupload"${INSERTFILE##*.}" # prepare the command to connect to freenet and upload the file # connect with HELLO TEMPFILE="$(mktemp /tmp/insert.temp.XXXXXXXXXX)" echo ClientHello > $TEMPFILE echo "Name=Upload-Test${INSERTFILE##*.}" >> $TEMPFILE echo ExpectedVersion=2 >> $TEMPFILE echo End >> $TEMPFILE echo >> $TEMPFILE # upload with ClientPut echo ClientPut >> $TEMPFILE echo "DontCompress=true" >> $TEMPFILE echo "URI=CHK@/testupload" >> $TEMPFILE echo "Identifier=$IDENT" >> $TEMPFILE echo MaxRetries=-1 >> $TEMPFILE echo UploadFrom=direct >> $TEMPFILE echo DataLength=$(ls -l $INSERTFILE | cut -d " " -f 5) >> $TEMPFILE echo Persistence=forever >> $TEMPFILE echo Global=true >> $TEMPFILE echo End >> $TEMPFILE cat $INSERTFILE >> $TEMPFILE # run the insert (cat $TEMPFILE | nc 127.0.0.1 9481) & # watch how long the node lives for i in {1..100}; do curl 'http://127.0.0.1:8888/stats/?fproxyAdvancedMode=2' 2>/dev/null | grep -io nodeUptimeSession.*'<' | grep -io '[^;]*s<' | grep -io '.*s' ; curl 'http://127.0.0.1:8888/stats/?fproxyAdvancedMode=2' 2>/dev/null | grep -io '[^>]* java memory.*&' | grep -io '[^&]*'; sleep 5; done EOF I hope this allows you to reproduce the problem — and I would be very happy if you could find and fix the source of the problem! This has been blocking the release of 1481 for far too long. With 33 peers as target (but only up to 25 actually connected, my connection isn’t that fast), this gets Freenet to die with an OOM within less than 15 minutes (last successful stats site at 14m17s). Best wishes, Arne -- Unpolitisch sein heißt politisch sein ohne es zu merken
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