ZCS 6.0.8 problem with logger

[snipking]

I found my server with low idle because all memory used by zmrrdfetch.

And when I run zmrrdfetch -c -f df.csv. The thread used 90+% CPU and free memory going lower and lower.

What should I do ? I can onle stop the zmlogger now.

Here is my df.csv file from zmstat. All the old data has been deleted.