Commit Graph

12 Commits

Author SHA1 Message Date
sairajzero
4434ad6b3e Support for SQL version 5.7 2022-02-18 22:23:17 +05:30
sairajzero
4416ab5ad3 Adding Blockchain refresh interval
- Added blockchain refresh interval
- Updating some constants
- Disabled various console.debug
2022-02-18 19:24:09 +05:30
sairajzero
1fcd62f2e5 Slave: wait before sync on master-change
When Update master event occurs, master needs time to sync its missing data, so slaves should sync only after BACKUP_INTERVAL
2022-02-18 00:11:55 +05:30
sairajzero
15d36eb088 All Constants moved to _constants.js 2022-02-17 23:52:31 +05:30
sairajzero
a2dcfb27ce Bug fixes
- Fixed: Buy/sell order placement not working in UI
- Fixed: Buy order placement not checking the cash balance properly
- Fixed: Re-sync not working properly
  . (Master) Typo in SQL syntax
  . (Master) Incorrect index of data sent by master
  . (Slave) Invalid request send when requesting re-sync
- Removed counts for add, delete packets and total-add (As resync uses diff count)
2022-02-17 22:53:03 +05:30
sairajzero
12e90abe8b Re-sync Improvements
When table data needs resync (ie, when checksum fails), Instead of requesting the entire data, following procedure is done
- row-group (based on id column) hashes is requested from master
- hashes are checked on the DB
- request chunks that have failed hash check
2022-02-17 04:43:05 +05:30
sairajzero
2a125eb4d2 Verify backup data integrity
- Backup data integrity is verified using Checksum for each table
- If checksum mismatch is found (for a table) after a backup sync, the table data is cleared and re-synced
- Moved backup sync module to backup/sync.js
- Fixed: checkForRatedSellers not using correct asset when checking for rated sellers
- Others: priceHistory is converted toFixed(3) before storing in DB. (As large/non-terminating decimals cause ambiguity btw nodes during checksum)
2022-02-16 01:55:31 +05:30
sairajzero
0ff3f2a7fb Update Sink key transfer
- Same sink is used across nodes (sink is generated only when exchange starts for the 1st time)
- Shares as encrypted before sending to nodes (also store encrypted share in DB)
- Load share/key from DB (if available) when node starts
- share-threshold is calculated based on number of alive nodes
- Fixed: Shamirs algo fails when threshold is less than 2 (used round-about)
- Fixed: Minor bugs
2022-02-12 05:41:01 +05:30
sairajzero
a06c5b4c7b Backup Sync improvements
- Removed: Immutable table-type (Previously immutable tables are now considered as mutable tables in backup feature)
- Backup sync-data from master are temporally cached and then processed after receiving all sync-data
- Backup sync-data from cache are now processed in ordered manner (to prevent foreign key constrain error, repeated data, re-adding a deleted data)
- Updated SQL Schema
2022-02-08 06:26:03 +05:30
sairajzero
048ab0667b Multi asset: initial price and other improvements
- Read blockchain for asset's initial price
- Transfer all tokens to new sink on master transfer

Other Improvements:
- Slave: close existing backup sync when master WS closes
- Updated SQL schema, updated SQL syntax as required
2022-02-05 20:23:36 +05:30
sairajzero
bf302c3ebc bug fix: backup/sync
- Fixed minor bugs in backup/sync process
- Fixed: Master doesn't sync when it comes back online
- Decreased backup interval time to 1 min.
2022-01-26 02:20:34 +05:30
sairajzero
0ba0f10245 Renaming files 2022-01-14 04:11:25 +05:30