flume-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Jan Van Besien <ja...@ngdata.com>
Subject Re: file channel read performance impacted by write rate
Date Mon, 18 Nov 2013 13:21:51 GMT
On 11/18/2013 11:28 AM, Jan Van Besien wrote:
> - thread dumps while the ingest was running and the null sink was enabled

After looking at the thread dumps myself, I did some profiling (yourkit 
"monitor profiling"). It seems to suggest that about 40% of the time, it 
is blocking on a monitor defined by the "synchronized" keyword in the 
LogFile$Writer.put(ByteBuffer) method. That seems significant?

Jan


Mime
View raw message