Reproducing the data-dir issue

Preconditions

1. Working Java setup
2. Datomic Pro > 0.9.5390
3. transactor config file:
   1. You need to set up your license plus the data-dir setting.
   2. The data-dir setting needs to match the DATADIR in run.sh
4. Write permissions on the DATADIR
5. bash

How to run

1. Start your storage (skip when using dev storage)
2. ./run.sh (make it executable first)

Platform Specifics/Tested with

• Mac OS X/datomic pro 0.9.5390/datomic pro 0.9.5359/cassandra + dev storage
• You might need to adjust the hardcoded 2 sec wait for the transactor to boot up in trigger-write.clj

What it does

1. removes write permissions from the datomic distribution data dir
2. starts a transactor with a custom data-dir configured via property file
3. creates a new database
4. installs two string attributes without index
5. adds data (~ 100 facts per attribute are enough)
6. alters the schema for each attribute to have an index
7. transactor ignores the data-dir setting tries to write to distribution directory which fails (see step 1) and exits.

Workaround

1. specifying the configured data-dir via system property directly as in -Ddatomic.dataDir=$DATADIR
2. ./run.sh w (or any argument to the script) to demonstrate the workaround