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Possible migration bug (2.0.2 to 2.1)

See original GitHub issue

I’ve upgraded from 2.0.2 to 2.1 today and found a NullPointerException in the log (otherwise everything is looks okay):

INFO   [main] o.c.c.m.MigrationRepository - Found 10 migration scripts
WARN   [main] i.c.s.CassandraStorage - Starting db migration from 23 to 25…
INFO   [main] o.c.c.m.MigrationRepository - Found 10 migration scripts
INFO   [main] o.c.c.m.MigrationTask - Migrated keyspace cassandra_reaper to version 24
INFO   [main] i.c.s.CassandraStorage - Migrated keyspace cassandra_reaper to version 24
INFO   [main] o.c.c.m.MigrationRepository - Found 10 migration scripts
INFO   [main] o.c.c.m.MigrationTask - Migrated keyspace cassandra_reaper to version 25
INFO   [main] i.c.s.CassandraStorage - Migrated keyspace cassandra_reaper to version 25
WARN   [main] i.c.s.c.Migration016 - altering every table to set `dclocal_read_repair_chance` to zero…
WARN   [main] i.c.s.c.Migration016 - alter every table to set `dclocal_read_repair_chance` to zero completed.
INFO   [main] i.c.s.c.Migration024 - Altering node_metrics_v3 to use TWCS...
INFO   [main] i.c.s.c.Migration024 - node_metrics_v3 was successfully altered to use TWCS.
INFO   [main] i.c.s.c.Migration025 - Converting repair_run_by_cluster table...
ERROR  [main] i.c.s.c.Migration025 - Failed transferring rows to repair_run_by_cluster_v2
java.lang.NullPointerException: null
        at io.cassandrareaper.storage.cassandra.Migration025.migrate(Migration025.java:51)
        at io.cassandrareaper.storage.CassandraStorage.initializeCassandraSchema(CassandraStorage.java:302)
        at io.cassandrareaper.storage.CassandraStorage.initializeAndUpgradeSchema(CassandraStorage.java:251)
        at io.cassandrareaper.storage.CassandraStorage.<init>(CassandraStorage.java:239)
        at io.cassandrareaper.ReaperApplication.initializeStorage(ReaperApplication.java:477)
        at io.cassandrareaper.ReaperApplication.tryInitializeStorage(ReaperApplication.java:300)
        at io.cassandrareaper.ReaperApplication.run(ReaperApplication.java:179)
        at io.cassandrareaper.ReaperApplication.run(ReaperApplication.java:98)
        at io.dropwizard.cli.EnvironmentCommand.run(EnvironmentCommand.java:43)
        at io.dropwizard.cli.ConfiguredCommand.run(ConfiguredCommand.java:87)
        at io.dropwizard.cli.Cli.run(Cli.java:78)
        at io.dropwizard.Application.run(Application.java:93)
        at io.cassandrareaper.ReaperApplication.main(ReaperApplication.java:117)
INFO   [main] i.c.ReaperApplication - no JMX connection factory given in context, creating default
INFO   [main] i.c.ReaperApplication - creating and registering health checks
INFO   [main] i.c.ReaperApplication - creating resources and registering endpoints
INFO   [main] i.c.s.SchedulingManager - Starting new SchedulingManager instance
INFO   [main] i.c.ReaperApplication - Initializing JMX seed list for all clusters...
INFO   [main] i.c.ReaperApplication - Initialized JMX seed list for all clusters.
INFO   [main] i.c.ReaperApplication - resuming pending repair runs
INFO   [main] i.c.ReaperApplication - Initialization complete!
WARN   [main] i.c.ReaperApplication - Reaper is ready to get things done!