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```thread 'tests::shard_counts' panicked at 'calle...
# development
f
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thread 'tests::shard_counts' panicked at 'called `Result::unwrap()` on an `Err` value: "Error creating/opening content database at \"/var/folders/xc/t6sxrjnj7p37q3mml1kj5qxc0000gn/T/.tmpZNLxIF/0\": MDB_MAP_FULL: Environment mapsize limit reached"', sharded_lmdb/src/tests.rs:20:4
I'm getting this error when running Rust tests. I've already increased 
ulimit -n
to 
10000
. I don't see anything else relevant in https://www.pantsbuild.org/docs/troubleshooting. Any advice on what else I should do to get the test to overcome this resource limit?
e
That sounds more like a memory limit, like can't mmap. How are those sort of stats looking on your machine?
f
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$ ulimit -a
-t: cpu time (seconds)              unlimited
-f: file size (blocks)              unlimited
-d: data seg size (kbytes)          unlimited
-s: stack size (kbytes)             8176
-c: core file size (blocks)         0
-v: address space (kbytes)          unlimited
-l: locked-in-memory size (kbytes)  unlimited
-u: processes                       2666
-n: file descriptors                10000
other than stack size, everything else is unlimited (or effectively so for file descriptors)
w
is this an M1/M2?
oh, hm. though: that value is configured per-test.
that test configures a max size of 
10_000_000
(bytes).
f
is this an M1/M2?
this is a M1
w
does increasing the map size for the test help? one bit of FUD that i’ve heard but never confirmed is that LMDB’s file format is platform-specific, which might mean that you need more space on M1
f
doubling to 20,000,000 gets the test to pass
lowering the number 13 mil passes 12 mil fails
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