GemStone doesn't start, says “no space left”

Question

I'm trying to start GemStone for MagLev. Here is an error that I get in a log:

GemStone could not create the semaphore array required for the cache.

Reason: GemStone could not retrieve the IPC identifier associated with the semaphore key -704540831. semget() error = errno=28,ENOSPC, There is no space left on the device (or, in fcntl(), there are no more record locks).

Full logs are available in a gist.

Does it really lack space? I have 7 GB available. Are there any other issues in my case?

Answer 1

I've grabbed Maglev from git master and ran update script. Now it works fine.

I don't know the exact reason behind the issue but it might have been one of the following:

• I've used ruby-build and rbenv. Now I install by hand outside of rbenv.
• I had wrong kernel settings (such as shmmax). Recently I adjusted those for Postgres.
• That was an issue in Maglev itself and it has been fixed in newer versions.