[
https://issues.apache.org/jira/browse/LOG4J2-3090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17342265#comment-17342265
]
jasonyu edited comment on LOG4J2-3090 at 5/11/21, 3:09 AM:
-----------------------------------------------------------
{code:java}
try (final FileInputStream fis = new FileInputStream(source);
final FileOutputStream fos = new FileOutputStream(destination);
final OutputStream gzipOut = new ConfigurableLevelGZIPOutputStream(
fos, BUF_SIZE, compressionLevel);
// Reduce native invocations by buffering data into GZIPOutputStream
final OutputStream os = new BufferedOutputStream(gzipOut, BUF_SIZE)) {
final byte[] inbuf = new byte[BUF_SIZE];
int n;
while ((n = fis.read(inbuf)) != -1) {
os.write(inbuf, 0, n);
}
// flush and sync
os.flush();
fos.getFD.sync();
}
{code}
was (Author: jasonyu):
{code:java}
try (final FileInputStream fis = new FileInputStream(source);
final OutputStream fos = new FileOutputStream(destination);
final OutputStream gzipOut = new ConfigurableLevelGZIPOutputStream(
fos, BUF_SIZE, compressionLevel);
// Reduce native invocations by buffering data into GZIPOutputStream
final OutputStream os = new BufferedOutputStream(gzipOut, BUF_SIZE)) {
final byte[] inbuf = new byte[BUF_SIZE];
int n;
while ((n = fis.read(inbuf)) != -1) {
os.write(inbuf, 0, n);
}
// flush and sync
os.flush();
fos.getFD.sync();
}
{code}
> Why the log file was deleted when the compressd file has not been flushed to
> the disk?
> --------------------------------------------------------------------------------------
>
> Key: LOG4J2-3090
> URL: https://issues.apache.org/jira/browse/LOG4J2-3090
> Project: Log4j 2
> Issue Type: Question
> Affects Versions: 2.13.3
> Reporter: jasonyu
> Priority: Minor
>
> Here is the situation :
> 1、The appender is RollingFileAppender with SizeBasedTriaggeringPolicy, the
> rolling file pattern is extended to ".gz".
> 2、While the log4j2 executing rolling(compress) event, the linux server is
> rebooted by coincidence.
> As a result, the log file before rolling was deleted and the size of the
> compressed file was zero, which means the log message was lost.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
