15:01 <stellar-slack> <armed10> Does anyone here have experience with horizon? I've gotten it to work before but now it's giving me errors.

15:01 <stellar-slack> <bartek> @armed10: what errors?

15:02 <stellar-slack> <armed10> From what I can tell the importer does not write anything to the database, resulting in the following error in horizon: horizon: Failed to check latest ledgersql: Scan error on column index 0: converting string nil to a int32: strconv.ParseInt: parsing "nil": invalid syntax pid=3793

15:03 <stellar-slack> <bartek> looks like horizon (not importer) error

15:03 <stellar-slack> <bartek> one sec

15:05 <stellar-slack> <bartek> can you try this query in postgres: `select * from ledgerheaders;`

15:37 <stellar-slack> <armed10> I wouldn't want to copy that here but theres a number of ledgers with their data and everything

15:38 <stellar-slack> <armed10> rather unreadable in this format

15:44 <stellar-slack> <bartek> can you try this query: `SELECT MAX(sequence) FROM history_ledgers` (in horizon db this time0

15:45 <stellar-slack> <bartek> it seems that error is triggered here: https://github.com/stellar/horizon/blob/master/src/github.com/stellar/horizon/db/streaming.go#L31-L33

15:45 <stellar-slack> <bartek> and `MaxHistoryLedger`query gives an empty row so probably your `history_ledgers` table is empty. horizon-importer must be running.

19:02 <stellar-slack> <buhrmi> hey guys, anyone here interested in the hyperledger project (http://hyperledger.org|hyperledger.org)? I gonna take my open-core approach over to that project

19:02 <stellar-slack> <buhrmi> we could definitely use some input from stellar guys too

22:51 <stellar-slack> <sacarlson> buhrmi: so far https://github.com/hyperledger/hyperledger looks to be vaporware so your contribution to them looks to be 99.9% or what they will have