I have a database (
mydatabase) that was created on a dedicated, persistent volume (in a public cloud environment). e.g. created in
$STARDOG_HOME/mydatabase where the data disk was mounted. Meanwhile, the
system database was lost because it was backed by an ephemeral disk. I figured that I could simply recreate the database and that the existing data would survive; it did not.
Not to worry, it was a test environment (Stardog 5.3.2), but I’d like to know if, in concept, it is possible to re-attach a database. Here’s the error that was produced:
ERROR 2018-08-05 18:16:12,949 [Stardog.Executor-17] com.complexible.stardog.dht.dictionary.HashDictionary:compareSizes(352): Dictionary corruption 0 != 34767 WARN 2018-08-05 18:16:13,018 [Stardog.Executor-17] com.complexible.stardog.dht.dictionary.HashDictionary:<init>(271): Dictionary is corrupted, will try to repair automatically java.io.IOException: Dictionary file is corrupt, rebuild the database at com.complexible.stardog.dht.dictionary.HashDictionary.compareSizes(HashDictionary.java:353) ~[stardog-5.3.2.jar:?] at com.complexible.stardog.dht.dictionary.HashDictionary.<init>(HashDictionary.java:263) ~[stardog-5.3.2.jar:?] at com.complexible.stardog.dht.dictionary.HashDictionary$Builder.build(HashDictionary.java:160) ~[stardog-5.3.2.jar:?] at com.complexible.stardog.dht.dictionary.HashDictionary$Builder.build(HashDictionary.java:114) ~[stardog-5.3.2.jar:?] at com.complexible.stardog.index.dictionary.InliningMappingDictionary$Builder.build(InliningMappingDictionary.java:53) ~[stardog-5.3.2.jar:?] ...
Thanks for insight!