API Calls Connection Reset by Peer

1

Hi

Im using razuna for a month now, I have lots of folders with assets in them. Python script is looping through folders to do some modification and stuff to assets.

The problem is when I use multi threading and I hit the Apache2 server hard. First 2 minutes (120 seconds) everything is fine. after 2 minutes I get 104 Connection reset by peer, and 110 connection aborted.
Please note that the server is bulky with 32 CPU and 10GB Ram, No Renditions and stuff. The python script is being run on the razuna server(debian)with mysql database. Im fronting the tomcat with apache2 with reverse proxy setting stated in razuna wiki.

Example post request:

response = requests.post(url, data=payload, timeout=600)

Apache virtual host Config:

<virtualhost *:80>
ServerName modisso
        DocumentRoot /opt/razuna_tomcat_1_7/
        ErrorLog /var/log/apache2/error_razuna.log
        CustomLog /var/log/apache2/razuna.log combined
        LogLevel warn

        ProxyRequests Off
        <Proxy *>
                Order deny,allow
                Allow from all
        </Proxy>

        RequestHeader append x_https "off"

        ProxyPreserveHost On
        ProxyTimeout 600
        ProxyVia On
        ProxyPass / http://localhost:8080/
        ProxyPassReverse / http://localhost:8080/

</VirtualHost>

<VirtualHost *:80>
        ServerName modisso
        DocumentRoot /opt/razuna_tomcat_1_7/
        ErrorLog /var/log/apache2/error_razuna.log
        CustomLog /var/log/apache2/razuna.log combined
        LogLevel warn

        ProxyRequests Off
        <Proxy *>
                Order deny,allow
                Allow from all
        </Proxy>

        RequestHeader append x_https "off"

        ProxyPreserveHost On
        ProxyTimeout 600
        ProxyVia On
        ProxyPass / ajp://localhost:8009/ ping=5 timeout=600
        ProxyPassReverse / ajp://localhost:8009/

</VirtualHost>

Tomcat Server.xml (although im api calling on port 80, apache2 is answering the calls I guess as they are static content?)

<Connector port="8080" protocol="HTTP/1.1"
               connectionTimeout="900000"
               redirectPort="8443" 
               maxPostSize="0"
               enableLookups="false"
               disableUploadTimeout="true"
               maxKeepAliveRequests="-1"
               useBodyEncodingForURI="true"
               compression="off"
               server="Razuna Application Server"
               URIEncoding="UTF-8"
               maxSwallowSize="0"
               maxThreads="10350"
               minSpareThreads="10125"
               acceptCount="10350"
               />

Tomcat setenv.sh

CATALINA_OPTS="$CATALINA_OPTS -server -Xss50M -Xms4G -Xmx4G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -Djava.awt.headless=true -Dorg.apache.jasper.runtime.BodyContentImpl.LIMIT_BUFFER=true -Dmail.mime.decodeparameters=true -XX:+PrintGCDateStamps -XX:-OmitStackTraceInFastThrow -Djava.security.egd=file:/dev/./urandom"

# Perm Gen size needs to be increased if encountering OutOfMemoryError: PermGen problems. Specifying PermGen size is not valid on IBM JDKs

PRGDIR=`dirname $0`
RAZUNA_MAX_PERM_SIZE=1024m
if [ -f "${PRGDIR}/permgen.sh" ]; then
    echo "Detecting JVM PermGen support..."
    . ${PRGDIR}/permgen.sh
    if [ $JAVA_PERMGEN_SUPPORTED = "true" ]; then
        echo "PermGen switch is supported. Setting to ${RAZUNA_MAX_PERM_SIZE}"
        CATALINA_OPTS="-XX:PermSize=${RAZUNA_MAX_PERM_SIZE} -XX:MaxPermSize=${RAZUNA_MAX_PERM_SIZE} ${CATALINA_OPTS}"
    else
        echo "PermGen switch is NOT supported and will NOT be set automatically."
    fi
fi

export CATALINA_OPTS

I think there is a 120 second timeout somewhere that I’m Not aware of , Please advise

regards,
Farhad

2

Farhad,

If you depend on Razuna for a production environment and what support you
should subscribe to our support plans. With it, we are able to help you
pin-point issues in your production environment.

That said, you have to look into memory usage, Apache and Tomcat tuning.
There are simply too many components included for us to make a intelligence
guess here.

3

Thanks for the reply,

Another question, Is it possible that razuna’s java use multiple threads?

Regards,
Farhad