问题描述：

适用版本

V861、V850、V820

问题描述

实例CPU持续高消耗，影响系统整体性能。

解决方案：

原因分析：

分析实例线程堆栈信息，发现是java.util.zip.GZIPOutputStream.write相关线程持续消耗CPU，分析判断是apusic bug导致。

     at java.util.zip.Deflater.deflateBytes(Native Method)

     at java.util.zip.Deflater.deflate(Deflater.java:444)

     at java.util.zip.Deflater.deflate(Deflater.java:366)

     at java.util.zip.DeflaterOutputStream.deflate(DeflaterOutputStream.java:251)

     at java.util.zip.DeflaterOutputStream.write(DeflaterOutputStream.java:211)

     at java.util.zip.GZIPOutputStream.write(GZIPOutputStream.java:145)

     at com.apusic.web.http.GZipOutputFilter.doWrite(GZipOutputFilter.java:63)

     at com.apusic.web.http.HttpOutputStream.flushBuffer(HttpOutputStream.java:314)

     at com.apusic.web.http.HttpOutputStream.write(HttpOutputStream.java:165)

     at com.apusic.web.http.HttpWriter$UTF8Writer.implWrite(HttpWriter.java:318)

     at com.apusic.web.http.HttpWriter.write(HttpWriter.java:186)

     at java.io.PrintWriter.write(PrintWriter.java:426)

     at com.apusic.web.jsp.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:103)

     at com.apusic.web.jsp.runtime.JspWriterImpl.bufferOverflow(JspWriterImpl.java:117)

     at com.apusic.web.jsp.runtime.JspWriterImpl.write(JspWriterImpl.java:218)

     at java.io.Writer.write(Writer.java:157)

     at com.apusic.web.jsp.runtime.AbstractJspWriter.print(AbstractJspWriter.java:65)

     at _tagx._WEB_2dINF._tags._core._framework._body__tag.doTag(_body__tag.java:335)

     at _jspx._webviews._webframework._framework._exception._error__jsp$_JSPX_JspFragment._jspx_invoke_0(_error__jsp.java:155)

     at _jspx._webviews._webframework._framework._exception._error__jsp$_JSPX_JspFragment.invoke(_error__jsp.java:386)

     at _tagx._WEB_2dINF._tags._core._framework._page__tag.doTag(_page__tag.java:191)

     at _jspx._webviews._webframework._framework._exception._error__jsp._jspService(_error__jsp.java:109)

     at com.apusic.web.jsp.runtime.HttpJspPageImpl.service(HttpJspPageImpl.java:40)

     at javax.servlet.http.HttpServlet.service(HttpServlet.java:770)

     at com.apusic.web.container.ServletComponent.service(ServletComponent.java:87)

     at com.apusic.web.container.WebContainer.invoke(WebContainer.java:1066)

     at com.apusic.web.container.WebContainer.invoke(WebContainer.java:958)

     at com.apusic.web.jsp.JspServlet.service(JspServlet.java:309)

     at javax.servlet.http.HttpServlet.service(HttpServlet.java:770)

…..

解决方法：

V861版本安装补丁PT163307 进行优化

V850版本安装补丁PT165801进行优化

V820版本安装补丁PT165800进行优化