Very Interesting.... Why you open so many file? Actually what kind of system that is built by you until open so many files? would you tell us? Thanks...
On Sat, Jan 14, 2012 at 2:01 AM, Thorsten von Eicken <t...@rightscale.com>wrote: > I'm running a single node cassandra 1.0.6 server which hit a wall > yesterday: > > ERROR [CompactionExecutor:2918] 2012-01-12 20:37:06,327 > AbstractCassandraDaemon.java (line 133) Fatal exception in thread > Thread[CompactionExecutor:2918,1,main] java.io.IOError: > java.io.FileNotFoundException: > /mnt/ebs/data/rslog_production/req_word_idx-hc-453661-Data.db (Too many > open files in system) > > After that it stopped working and just say there with this error > (undestandable). I did an lsof and saw that it had 98567 open files, > yikes! An ls in the data directory shows 234011 files. After restarting > it spent about 5 hours compacting, then quieted down. About 173k files > left in the data directory. I'm using leveldb (with compression). I > looked into the json of the two large CFs and gen 0 is empty, most > sstables are gen 3 & 4. I have a total of about 150GB of data > (compressed). Almost all the SStables are around 3MB in size. Aren't > they supposed to get 10x bigger at higher gen's? > > This situation can't be healthy, can it? Suggestions? >
