WSO2 Carbon 4.2.0 based products general fine tuning parameters.

Application server and API store and publisher

 

catalina-server.xml

maxThreads="750"

minSpareThreads="150"

disableUploadTimeout="false"

enableLookups="false"

connectionUploadTimeout="120000"

maxKeepAliveRequests="600"

acceptCount="600"

API Key Manager and Identity server

catalina-server.xml

maxThreads="750"

minSpareThreads="150"

disableUploadTimeout="false"

enableLookups="false"

connectionUploadTimeout="120000"

maxKeepAliveRequests="600"

acceptCount="600"

api-manager.xml

<EnableGatewayKeyCache>true</EnableGatewayKeyCache>

API gateway if nhhtp transport enabled.

/repository/conf/nhttp.properties

http.socket.timeout=60000

snd_t_core=200

snd_t_max=250

snd_io_threads=16

lst_t_core=200

lst_t_max=250

lst_io_threads=16

api-manager.xml

<EnableGatewayKeyCache>true</EnableGatewayKeyCache>

STORE/PUBLISHER

Axis2Client.xml

<parameter name="defaultMaxConnPerHost">1000</parameter>
<parameter name="maxTotalConnections">30000</parameter>

Elastic Load Balancer

passthru-http.properties

http.socket.timeout=120000

worker_pool_size_core=400

worker_pool_size_max=500

io_buffer_size=16384

All servers

masterdatasource.properties
<maxActive>250</maxActive>
<testOnBorrow>false</testOnBorrow>
<validationInterval>120000</validationInterval>

wso2server.sh

-Xms2048m -Xmx2048m -XX:MaxPermSize=1024m

Open Files Limit

Set open files limit to 200000 by editing

/etc/sysctl.conf

sudo sysctl -p