Multiple "Occur" result buffers in emacs?

Is there开发者_JS百科 a package that allows me to have multiple Occur result buffer for the same buffer (like grep-a-lot: http://www.emacswiki.org/emacs/grep-a-lot.el).

I run into this issue when analyzing log files for multiple keywords (say to see what different but related threads were doing).

You don't need an additional package. C-ur will rename the current occur buffer to an unique name. You can add occur-rename-buffer to occur-hook to make it automatic (see the documentation of occur-rename-buffer which mentions this, too).