leveldb store open: resource temporarily unavailable

[prologic]

Using the upgrade_finn_uhaha branch of bitraft I noticed the following problems that seem to have to do with leveldb you're using behind the scenes?

How do I fix/resolve this? Can I control what is being used here?

Running the leader:

james@Jamess-MacBook-Pro
Mon Jun 07 10:26:04
~/tmp/bitraft
 (upgrade_finn_uhaha) 130
$ ./bitraft -d ./data1
INFO[0000] 61466:S 07 Jun 2021 10:26:13.767 # starting bitraft version 0.0.1@HEAD
INFO[0000] 61466:S 07 Jun 2021 10:26:14.056 * synchronized time
INFO[0000] 61466:S 07 Jun 2021 10:26:14.057 * server listening at [::]:4920
INFO[0000] 61466:S 07 Jun 2021 10:26:14.057 * server advertising as :5920
INFO[0000] 61466:S 07 Jun 2021 10:26:14.156 * initial configuration: index=0 servers=[]
INFO[0000] 61466:S 07 Jun 2021 10:26:14.156 * bootstrapping new cluster
INFO[0000] 61466:F 07 Jun 2021 10:26:14.156 * entering follower state: follower="Node at [::]:4920 [Follower]" leader=
INFO[0001] 61466:F 07 Jun 2021 10:26:15.657 # heartbeat timeout reached, starting election: last-leader=
INFO[0001] 61466:C 07 Jun 2021 10:26:15.657 * entering candidate state: node="Node at [::]:4920 [Candidate]" term=2
INFO[0001] 61466:C 07 Jun 2021 10:26:15.728 * election won: tally=1
INFO[0001] 61466:L 07 Jun 2021 10:26:15.728 * entering leader state: leader="Node at [::]:4920 [Leader]"
INFO[0002] 61466:L 07 Jun 2021 10:26:16.223 * logs loaded: ready for commands

Adding another instance:

james@Jamess-MacBook-Pro
Mon Jun 07 10:23:06
~/tmp/bitraft
 (master) 130
$ ./bitraft -b 0.0.0.0:4921 -j 127.0.0.1:4920 -d ./data2
INFO[0000] 61470:S 07 Jun 2021 10:26:28.259 # starting bitraft version 0.0.1@HEAD
INFO[0000] 61470:S 07 Jun 2021 10:26:28.538 * synchronized time
INFO[0000] 61470:S 07 Jun 2021 10:26:28.538 * server listening at [::]:4921
INFO[0000] 61470:S 07 Jun 2021 10:26:28.538 * server advertising as :5920
INFO[0000] 61470:S 07 Jun 2021 10:26:28.538 # leveldb store open: resource temporarily unavailable

[prologic]

PEBKAC.

Problem was config.DataDir was the same across multiple instances. My bitraft CLI has a -p/--path option that affects this, but I didn't use it properly 🤣

Side-question: Will you accept a Bitcask Backend?