9
Recommended Settings

Recommended Settings defines recommended parameters for Wireless Edition. Each section of this document presents a different topic. These sections include:

• Section 9.1, "Mod_JServ Configuration"

• Section 9.2, "Recommended Unix Kernel Parameters"

• Section 9.3, "Recommended Unix TCP Parameters"

9.1 Mod_JServ Configuration

To adjust the maximum number of socket connections that Mod_ JServ can handle simultaneously, modify the following parameter in the jserv.properties file.

Table 9-1 Mod_JServ Configuration

Name	Value
security.maxConnections	200

9.2 Recommended Unix Kernel Parameters

Oracle recommends that you modify the following kernel parameters in the /etc/system file:

Table 9-2 Recommended Unix Kernel Parameters

Parameter	Value
priority_paging	1
rlim_fd_max	8192
rlim_fd_cur	2048
lwp_default_stksize	0x4000
rpcmod:svc_run_stksize	0x4000
tcp:tcp_conn_hash_size	262144
sq_max_size	1600

9.3 Recommended Unix TCP Parameters

The following TCP parameters should be modified through the ndd command:

Table 9-3 Recommended Solaris TCP Parameters

Parameter	Value
tcp_rexmit_interval_initial	3000
tcp_rexmit_interval_min	3000
tcp_rexmit_interval_max	10000
tcp_ip_abort_interval	60000
tcp_ip_abort_cinterval	60000
tcp_keepalive_interval	120000
tcp_fin_wait_2_flush_interval	16000
tcp_conn_req_max_q	10240
tcp_conn_req_max_q0	10240
tcp_xmit_hiwat	65536
tcp_xmit_lowat	32768
tcp_recv_hiwat	65536
tcp_slow_start_initial	2
tcp_time_wait_interval	32767