基于Oracle EBS R12，开发了一个Webservice用于返回某项主数据，当请求的数据量非常大的时候（大于6000行的数据量），Oracle应用服务器总是给返回一个500 Internal Server Error。请求数据量小的时候，Webservice运行没有问题，能够正常返回请求数据。
客户端接到的报错：
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<HTML><HEAD>
<TITLE>500 Internal Server Error</TITLE>
</HEAD><BODY>
<H1>Internal Server Error</H1>
The server encountered an internal error or
misconfiguration and was unable to complete
your request.<P>
Please contact the server administrator,
[email protected] and inform them of the time the error occurred,
and anything you might have done that may have
caused the error.<P>
More @R_447_4045@ion about this error may be available
in the server error log.<P>
</BODY></HTML>
<HTML><HEAD>
<TITLE>500 Internal Server Error</TITLE>
</HEAD><BODY>
<H1>Internal Server Error</H1>
The server encountered an internal error or
misconfiguration and was unable to complete
your request.<P>
Please contact the server administrator,
[email protected] and inform them of the time the error occurred,
and anything you might have done that may have
caused the error.<P>
More @R_447_4045@ion about this error may be available
in the server error log.<P>
</BODY></HTML>
这种问题多是因为数据量太大，应用服务器处理超时，尝试调大Apache的Timeout，就可以解决问题。
注意：Oracle EBS的Apache配置参数在$INST_TOP/ora/10.1.3/Apache/Apache/conf下的httpd.conf
（并不是通常意义的Apache配置目录：$ORACLE_HOME/Apache/Apache/conf/httpd.conf）
#
# Timeout: The number of seconds before receives and sends time out.
#
Timeout 300
#
Timeout 300
修改完参数后，需要重启Oracle EBS HTTP Server或者OC4J Service才能生效。
Restart opmn
$ADMIN_SCRIPTS_HOME/adopmnctl.sh stopall
$ADMIN_SCRIPTS_HOME/adopmnctl.sh startall
$ADMIN_SCRIPTS_HOME/adopmnctl.sh stopall
$ADMIN_SCRIPTS_HOME/adopmnctl.sh startall
or
Restart OC4J service
$ADMIN_SCRIPTS_HOME/adoacorectl.sh stop
$ADMIN_SCRIPTS_HOME/adoacorectl.sh start
参考
500 Internal Server Error Causes Performance Issues (文档 ID 1389111.1)
Avoiding Worksheet Timeout in Oracle Demand Planning (文档 ID 779590.1)
TimeOut Errors - How To Extend TimeOut For Long Updates In APC/PIM/PLM Pages? (文档 ID 1165573.1)
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