DB size grows on OS X

[xlab]

Hello. I have OS X Yosemite 10.10.2 and go1.4.1 darwin/amd64, the situation is similar to #291. It seems that #292 fix works, because DB size grows exactly by 1GB at once. The problem is, the file grows on each bolt.Open, the initial size of DB was 3072MB

func main() {
    for i := 0; i < 100; i++ {
        db, _ := bolt.Open("file.db", 0644, nil)
        time.Sleep(time.Second)
        db.Close()
    }
}

After ~100 seconds I've got ~103GB file and no space left on the device.
file resize error: truncate file.db: no space left on device

I can tell more details upon request, just don't know what kind of details will be useful there.
Thanks.

[benbjohnson]

What commit SHA1 are you using? I ran your example using the latest (75f70a1) and it doesn't grow the database beyond the initial 1MB size.

[benbjohnson]

Ah, nm. I found it once I bumped the size high enough. Thanks. Will fix.

[xlab]

I'm using b8dbe11 that's the last significant commit. My DB is 3072MB in size so maybe that matters. I need some time to reproduce that bug using abstract data, so will update this issue later. As the most simple way, I can hand you my 3GB blob privately, but it's better to make a test case :) Stay tuned.

[GregIngelmo]

@xlab confirmed with https://gist.github.com/kemist/f2c4a6ded05fb6aeb98d

[GregIngelmo]

Oh nm, didn't see your confirm ben

[benbjohnson]

@xlab @kemist: Fixed: #304

[benbjohnson]

CI is 💚 but can one of you confirm the fix before I merge it?

[GregIngelmo]

Hey Ben, you are fast! Confirmed, db no longer grows

[benbjohnson]

💃

[xlab]

Thanks!