通过设置Weblogic设置线程数提高系统并发

-Dweblogic.threadpool.MinPoolSize=1000 -Dweblogic.threadpool.MaxPoolSize=1000

<

server

>

<

name

>AdminServer</

name

>

<

self-tuning-thread-pool-size-min

>1000</

self-tuning-thread-pool-size-min

>

<

self-tuning-thread-pool-size-max

>1000</

self-tuning-thread-pool-size-max

>

</

server

>

Attempting to allocate 4G bytes

There is insufficient native memory

for

the Java

Runtime Environment to

continue

.

Possible reasons:

The system is out of physical RAM or swap space

In 32 bit mode, the process size limit was hit

Possible solutions:

Reduce memory load on the system

Increase physical memory or swap space

Check

if

swap backing store is full

Use 64 bit Java on a 64 bit OS

Decrease Java heap size (-Xmx

/-Xms

)

Decrease number of Java threads

Decrease Java thread stack sizes (-Xss)

Disable compressed references (-XXcompressedRefs=

false

)

java.lang.OutOfMemoryError: Resource temporarily unavailable

in

tsStartJavaThread (lifecycle.c:1097).

Attempting to allocate 4G bytes

There is insufficient native memory

for

the Java

Runtime Environment to

continue

.

Possible reasons:

The system is out of physical RAM or swap space

In 32 bit mode, the process size limit was hit

Possible solutions:

Reduce memory load on the system

Increase physical memory or swap space

Check

if

swap backing store is full

Use 64 bit Java on a 64 bit OS

Decrease Java heap size (-Xmx

/-Xms

)

Decrease number of Java threads

Decrease Java thread stack sizes (-Xss)

Disable compressed references (-XXcompressedRefs=

false

)

ulimit

-a

core

file

size(blocks, -c) 0

data seg size (kbytes, -d) unlimited

scheduling priority (-e) 0

file

size (blocks, -f) unlimited

pending signals (-i) 515223

max locked memory (kbytes, -l) 64

max memory size (kbytes, -m) unlimited

open

files(-n) 1024

pipe size(512 bytes, -p) 8

POSIX message queues (bytes, -q) 819200

real-

time

priority(-r) 0

stack size(kbytes, -s) 10240

cpu

time

(seconds, -t) unlimited

max user processes(-u) 1024

virtual memory(kbytes, -

v

) unlimited

file

locks(-x) unlimited

max user processes(-u) 1024

ulimit

-u 5000

$

cat

/etc/security/limits

.d

/90-nproc

.conf

# Default limit for number of user's processes to prevent

# accidental fork bombs.

# See rhbz #432903 for reasoning.

*softnproc1024