Existing Gaffer Accumulo tables pre 0.7.4 cannot be migrated to 0.7.4

[p013570]

The AddUpdateTableIterator utility is used to migrate an accumulo table from one version to the next. However, the utility validates the table prior to upgrading it and if the validation fails then the table will not be upgraded.

The Accumulo aggregator iterator config was changed in 0.7.4 and this means the utility will always fail to run.

As a work around you will need to open the accumulo shell and manually update the Aggregator iterator config before running the AddUpdateTableIterator utility:

config -t <table-name> -s table.iterator.majc.Aggregator.opt.columns=<csv of your gaffer element groups>
config -t <table-name> -s table.iterator.minc.Aggregator.opt.columns=<csv of your gaffer element groups>
config -t <table-name> -s table.iterator.scan.Aggregator.opt.columns=<csv of your gaffer element groups>

config -t <table-name> -d table.iterator.majc.Aggregator.opt.all
config -t <table-name> -d table.iterator.minc.Aggregator.opt.all
config -t <table-name> -d table.iterator.scan.Aggregator.opt.all

[p013570]

Merged into develop.