There was a rare case that a block could be incorrectly added to
the indexer if the indexer was disabled during a reorg to a height
that matched the height that was expected, and the `sync` method
for the indexer wasn't called that would detect the reorg.
- Write indexer state and index atomically.
- Simplify chain state with current height.
- Roll forward to best height.
- Synchronize the index with the chain with common method `sync` for
the events 'connect', 'disconnect' and 'reset'. This will prevent
any of the events from conflicting with each other.
- Fix the chain rollback and reset.
- Make sure blocks are connected in the correct order.
- Improve logging to log similar to chain.
module indexer introduces a extensible architecture for indexing the
chain. It provides a base class which handles syncing with the chain,
handling re-orgs, interruptions, dynamic toggling, etc. TXIndexer
and AddrIndexer are provided for indexing transactions and addresses,
using the same flags as before i.e --index-tx and --index-address.
Indexes are stored in a different database and can be maintained
independently of the chain.
This has been patched in both bitcoind and btcd around February 20th, 2014. It was
shortly followed by a headers-first synchronization of blocks.
- d8b4b49667
- 50b6e10b57
- Multiple parallel runs of the same test will not conflict
as a unique identifier is added to the test directory.
- The base test directory can be configured for various
environments, and can be changed via the environment
variable `TEMP`, see the implementation of `os.tmpdir()`
for specific details.
There is potential for around a 10% to 23% increase to the performance
of block reads by using `allocUnsafe`, however there is already around
a 3 to 6 times increase to the performance. While it's safe to use
`allocUnsafe` as the number of bytes read is checked to be the same
size as the buffer allocation, there is a potential for test cases
to introduce _other_ behavior for `fs.read` that may not have the
same behavior, though this isn't currently the case.
update the rpc command to better match bitcoind.
add the ismine and iswatchonly fields and
segwit related fields such as witness_version
and witness_program.
