<HTML xmlns="http://www.w3.org/TR/REC-html40" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:st1="urn:schemas-microsoft-com:office:smarttags" xmlns:v="urn:schemas-microsoft-com:vml" xmlns:w="urn:schemas-microsoft-com:office:word"><head><META content="text/html; charset=utf-8" http-equiv="Content-Type">
<STYLE><!-- /* Style Definitions */ p.77f2ca91-ba8f-49f2-ae3e-48a7972a9f68, li.77f2ca91-ba8f-49f2-ae3e-48a7972a9f68, div.77f2ca91-ba8f-49f2-ae3e-48a7972a9f68, table.77f2ca91-ba8f-49f2-ae3e-48a7972a9f68Table {margin:0cm; margin-bottom:.0001pt;}div.Section1 {page:Section1;}--></STYLE>
<meta content="text/html; charset=utf-8" http-equiv=Content-Type><meta content="Microsoft Word 14 (filtered medium)" name=Generator><style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri","sans-serif";
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri","sans-serif";}
@page WordSection1
{size:612.0pt 792.0pt;
margin:70.85pt 70.85pt 2.0cm 70.85pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><BODY>
<P CLASS="77f2ca91-ba8f-49f2-ae3e-48a7972a9f68"><FONT FACE="Arial" SIZE="2"><div class=WordSection1><p class=MsoNormal>We seem to be losing quite a few log records in a clustered web application writing to an NFS-mounted file with the configuration shown below. <o:p></o:p></p><p class=MsoNormal>We are running logback-1.0.0. Any suggestions?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'> </span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'><</span><span style='font-size:10.0pt;font-family:"Courier New";color:#3F7F7F'>appender</span><span style='font-size:10.0pt;font-family:"Courier New"'> <span style='color:#7F007F'>name</span><span style='color:black'>=</span><i><span style='color:#2A00FF'>"file"</span></i><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New"'> <span style='color:#7F007F'>class</span><span style='color:black'>=</span><i><span style='color:#2A00FF'>"ch.qos.logback.core.rolling.RollingFileAppender"</span></i><span style='color:teal'>></span><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'> </span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'><</span><span style='font-size:10.0pt;font-family:"Courier New";color:#3F7F7F'>append</span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'>></span><span style='font-size:10.0pt;font-family:"Courier New";color:black'>true</span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'></</span><span style='font-size:10.0pt;font-family:"Courier New";color:#3F7F7F'>append</span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'>></span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'> </span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'><</span><span style='font-size:10.0pt;font-family:"Courier New";color:#3F7F7F'>prudend</span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'>></span><span style='font-size:10.0pt;font-family:"Courier New";color:black'>true</span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'></</span><span style='font-size:10.0pt;font-family:"Courier New";color:#3F7F7F'>prudend</span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'>></span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'> </span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'><</span><span style='font-size:10.0pt;font-family:"Courier New";color:#3F7F7F'>encoder</span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'>></span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'> </span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'><</span><span style='font-size:10.0pt;font-family:"Courier New";color:#3F7F7F'>pattern</span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'>></span><span style='font-size:10.0pt;font-family:"Courier New";color:black'>%d ${HOSTNAME} [%t] %-5p %c - {%marker} %m%n</span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'></</span><span style='font-size:10.0pt;font-family:"Courier New";color:#3F7F7F'>pattern</span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'>></span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'> </span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'></</span><span style='font-size:10.0pt;font-family:"Courier New";color:#3F7F7F'>encoder</span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'>></span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'> </span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'><</span><span style='font-size:10.0pt;font-family:"Courier New";color:#3F7F7F'>rollingPolicy</span><span style='font-size:10.0pt;font-family:"Courier New"'> <span style='color:#7F007F'>class</span><span style='color:black'>=</span><i><span style='color:#2A00FF'>"ch.qos.logback.core.rolling.TimeBasedRollingPolicy"</span></i><span style='color:teal'>></span><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'> </span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'><</span><span style='font-size:10.0pt;font-family:"Courier New";color:#3F7F7F'>maxHistory</span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'>></span><span style='font-size:10.0pt;font-family:"Courier New";color:black'>10</span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'></</span><span style='font-size:10.0pt;font-family:"Courier New";color:#3F7F7F'>maxHistory</span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'>></span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'> </span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'><</span><span style='font-size:10.0pt;font-family:"Courier New";color:#3F7F7F'>fileNamePattern</span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'>></span><span style='font-size:10.0pt;font-family:"Courier New";color:black'>/<u>xxx</u>/<u>log</u>-%d.log</span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'></</span><span style='font-size:10.0pt;font-family:"Courier New";color:#3F7F7F'>fileNamePattern</span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'>></span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'> </span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'></</span><span style='font-size:10.0pt;font-family:"Courier New";color:#3F7F7F'>rollingPolicy</span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'>></span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'> </span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'></</span><span style='font-size:10.0pt;font-family:"Courier New";color:#3F7F7F'>appender</span><span style='font-size:10.0pt;font-family:"Courier New";color:teal'>></span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div> </FONT></P>
<P CLASS="77f2ca91-ba8f-49f2-ae3e-48a7972a9f68"><SPAN STYLE="FONT-SIZE: 11pt; COLOR: red; FONT-FAMILY: 'Calibri','sans-serif'"><SPAN LANG="EN-US" STYLE="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><FONT COLOR="#0000ff" SIZE="2"><SPAN LANG="EN-US" STYLE="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'"><SPAN STYLE="COLOR: #1f497d"><SPAN STYLE="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial"><FONT COLOR="#999999">
<HR>
<FONT SIZE="1"></FONT></FONT></SPAN><SPAN STYLE="COLOR: blue"></SPAN>
<P></P></SPAN></SPAN></FONT></SPAN></SPAN>
<P></P></P></BODY></HTML>