Chainwork DB upgrade. Hashrate and Chainwork charts. #808
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We're discussing in Slack if dcrd/rpcclient and dcrd/dcrjson are ready for a new version tag so we can bump the module without using a pseudo-version. |
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I kept all the changes in this PR, even though the title is a little outdated. This will add a new column to your PostgreSQL blocks table. I've just been dropping the column from the table on the command line as needed. I took a couple of liberties with the units. Since chainwork is a 32-byte hex string representing a number > 2^64, for use in JSON/charts I converted work to exahash and hashrate to terahash/s. |
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Unfortunately, the node may not have orphaned/side chain blocks that in dcrdata's database. If it does not have a non-mainchain block, the "Block not found" error from dcrd can be ignored and the loop continued at the next row.
For instance, I get:
2018-11-23 13:37:36.794 [INF] PSQL: Adding column chainwork to table blocks...
2018-11-23 13:37:36.795 [INF] PSQL: Syncing chainwork. This might take a while...
2018-11-23 13:38:25.521 [ERR] PSQL: GetChainWork failed (000000000000000044b4a0c4ff6fdf5d32396a31333ab0fe3013ee9262e21b99). Aborting chainwork sync.: -5: Block not found: 000000000000000044b4a0c4ff6fdf5d32396a31333ab0fe3013ee9262e21b99
2018-11-23 13:38:25.535 [INF] DATD: Closing connection to dcrd.
2018-11-23 13:38:25.535 [INF] DATD: Bye!
2018-11-23 13:38:25.786 [ERR] DATD: failed to upgrade blocks table to version 3.7.0. Error: new chainwork column upgrade of blocks table ended prematurely after 289471 rows.Error: -5: Block not found: 000000000000000044b4a0c4ff6fdf5d32396a31333ab0fe3013ee9262e21b99
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BTW, I was testing a rebased version: https://github.com/chappjc/dcrdata/tree/chainwork-api |
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This adds chainwork to the dcrpg blocks table to support hashrate and work charts. This performs a PostgreSQL DB upgrade, adding a TEXT column, chainwork. Relevant block insertion routines are updated to grab the newly available chainwork value from dcrd. Having chainwork also enables quick calculation of network hashrate data. A network hashrate chart and "total work" chart have been added to /charts.
Resolves #744 and #723.
This PR performs a PostgreSQL DB upgrade, adding a
TEXTcolumn,chainwork. Relevant block insertion routines are updated to grab the newly available chainwork value from dcrd. Having chainwork also enables quick calculation of network hashrate data. A network hashrate chart and "total work" chart have been added to/charts.