We tried httpd 2.4.2 and mod_jk 1.2.37 with tomcat 7.0. One of our service is to download files. After httpd was upgrade from 2.2.19 to 2.4.2, we are not able to download large files (~2 GB). A download prematurely terminates. Below is the error message in tomcat log when it happens. We had to go back to httpd 2.2.19/mod_jk 1.2.27. ClientAbortException: java.net.SocketException: Broken pipe at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:366) at org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:432) at org.apache.tomcat.util.buf.ByteChunk.append(ByteChunk.java:347) at org.apache.catalina.connector.OutputBuffer.writeBytes(OutputBuffer.java:392) at org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:381) at org.apache.catalina.connector.CoyoteOutputStream.write(CoyoteOutputStream.java:89) at com.broadon.filter.AccessFilterOutputStream.write(AccessFilterOutputStream.java:26) at com.broadon.ccs.util.ContentFactory.writeContent(ContentFactory.java:501) We want to upgrade httpd if we can resolve this issue. I'd appreciate any suggestion. Jong --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx