Syslog-ng truncates lines when writing to output log - syslog-ng

Question

OS: SLes 11 sp4
syslog-ng: syslog-ng-2.0.9-27.34.39.2
Hi,
syslog-ng is configured to read from a application log file and then send it to another file in /var/log (tcpdump is not installed, I cant install it on a blackbox so this is how I test my config)
I have the following in my syslog-ng configuration file:
source ESRS {
file("/opt/esrsve/gateway/xGate.log");
};
destination esrsfile{ file("/var/log/max.log" );};
log { source(ESRS);
destination(esrsfile);
};
The problem I am seeing is that when syslog writes to the outputfile (esrsfile) it truncatedthe lines.
ex: Source File :
[ 0, 6, 1, 1007] 08-29-2016 13:56:28.703 IMPORTANT INFO EDDEMC: Data Item::PMStatus Current Value::Offline
And the destination file looiks like this:
...
...
Aug 29 14:00:02 hostname C
Aug 29 14:00:02 hostname u
Aug 29 14:00:02 hostname r
Aug 29 14:00:02 hostname r
Aug 29 14:00:02 hostname e
Aug 29 14:00:02 hostname n
Aug 29 14:00:02 hostname t
Aug 29 14:00:02 hostname
Aug 29 14:00:02 hostname V
Aug 29 14:00:02 hostname a
Aug 29 14:00:02 hostname l
Aug 29 14:00:02 hostname u
Aug 29 14:00:02 hostname e
Aug 29 14:00:02 hostname :
Aug 29 14:00:02 hostname :
Aug 29 14:00:02 hostname O
Aug 29 14:00:02 hostname f
Aug 29 14:00:02 hostname f
Aug 29 14:00:02 hostname l
Aug 29 14:00:02 hostname i
Aug 29 14:00:02 hostname n
Aug 29 14:00:02 hostname e
...
...
What is wrong here please?

Answer 1

When you look closely, the lines are not truncated, but one log entry spreads over multiple lines, character by character. It happens usually, when the log writer flushes after writing every single character.
Make sure the writer buffers lines and sends them as one single message.