One of our HBase tables had grown to over 1000 regions. We reduced this by changing the MAX_FILESIZE property of the table from he default 256MB to 10GB. Now we are down to ~70 regions.
I was wondering what the side effect of this change would be? In other words, what are the disadvantages of increasing the MAX_FILESIZE of a table? What would happen if we increased the MAX_FILESIZE to 100GB or even 1TB?
My initial suspicion is that compactions would slow down considerably, but I want to be sure. What do you guys think?
Thanks!