# Problem
The initial proposal ruled out implementing BigTable queries for
the `getBlockTime` RPC, but then it was implemented a couple months
later. Indicating that the functionality was never implemented in
the "implemented-proposals" document is a little confusing, so let's
bring the document in line with what actually happened. 🦾
# Summary of Changes
Remove the blurb about how `getBlockTime` was going to be deprecated
and add it to the list of calls that didn't yet support BigTable
queries at the time the proposal was written.
Allow u16::MAX to be specified for the instruction index. This makes it
possible to specify the current instruction, so it is not necessary to
know the instruction number.
Summary of Changes
Create a plugin mechanism in the accounts update path so that accounts data can be streamed out to external data stores (be it Kafka or Postgres). The plugin mechanism allows
Data stores of connection strings/credentials to be configured,
Accounts with patterns to be streamed
PostgreSQL implementation of the streaming for different destination stores to be plugged in.
The code comprises 4 major parts:
accountsdb-plugin-intf: defines the plugin interface which concrete plugin should implement.
accountsdb-plugin-manager: manages the load/unload of plugins and provide interfaces which the validator can notify of accounts update to plugins.
accountsdb-plugin-postgres: the concrete plugin implementation for PostgreSQL
The validator integrations: updated streamed right after snapshot restore and after account update from transaction processing or other real updates.
The plugin is optionally loaded on demand by new validator CLI argument -- there is no impact if the plugin is not loaded.
The program_id is not needed on "Program return data: " because it
always preceeded by the program invoke message, so no need to repeat
the program id. Also rename this to "Program return: " since "data"
is redundant.
Solang requires a method for verify ed25519 signatures. Add a new
builtin program at address Ed25519SigVerify111111111111111111111111111
which takes any number of ed25519 signature, public key, and message.
If any of the signatures fails to verify, an error is returned.
The changes for the web3.js package will go into another commit, since
the tests test against a released solana node. Adding web3.js ed25519
testing will break CI.
The parameter is now a required third argument. This is because authorized
withdrawer should never be the same as vote account keypair or validator
identity keypair for security reasons.
Added a --allow-unsafe-authorized-withdrawer to override this restriction if
necessary.
#### Problem
There's no way to get incremental snapshot information from RPC.
#### Summary of Changes
- Add new RPC method, `getHighestSnapshotSlot` that returns a `SnapshotSlotInfo`, which contains both the highest full snapshot slot, and the highest incremental snapshot slot _based on_ the full snapshot.
- Deprecate old RPC method, `getSnapshotSlot`
- Update API docs
Fixes#19579
This is the 2nd installment for the AccountsDb replication.
Summary of Changes
The basic google protocol buffer protocol for replicating updated slots and accounts. tonic/tokio is used for transporting the messages.
The basic framework of the client and server for replicating slots and accounts -- the persisting of accounts in the replica-side will be done at the next PR -- right now -- the accounts are streamed to the replica-node and dumped. Replication for information about Bank is also not done in this PR -- to be addressed in the next PR to limit the change size.
Functionality used by both the client and server side are encapsulated in the replica-lib crate.
There is no impact to the existing validator by default.
Tests:
Observe the confirmed slots replicated to the replica-node.
Observe the accounts for the confirmed slot are received at the replica-node side.
* Add note about ASK keyword to paper wallet doc
Per https://github.com/solana-labs/solana/issues/17325#issuecomment-844434585, this change adds a note to the paper wallet docs mentioning the use of the `ASK` keyword.
Also specifes that the `solana-keygen pubkey prompt://` command returns a derived bip44 base address.
(I'm new to Solana development and this was a point of confusion for me, only resolved by finding this issue)
* Update docs/src/wallet-guide/paper-wallet.md
Co-authored-by: Trent Nelson <trent.a.b.nelson@gmail.com>
Co-authored-by: Trent Nelson <trent.a.b.nelson@gmail.com>
Problem
Validators fall behind the network when bogged down by heavy RPC load. This
seems to be due to a combination of CPU load and lock contention caused by
serving RPC requests. The most expensive RPC requests involve account scans.
Summary of Changes
The AccountsDb replication design proposal is described.
I wanted to use this sysvar to get a recent block hash, but I didn't
know whether the first or the last entry contains the most recent block
hash.
By calling it for mainnet, printing the results, and comparing that to
the recent blocks on solanabeach.io/blocks, I discovered that the
entries are ordered from most recent to least recent. Document this to
save future readers the trouble.
* Zelcore wallet support for SOL/SPLs info added
I have added a quick infodump about Zelcore wallet supporting various features of the Solana ecosystem. I looked at previous commits and it seemed adding to the top of the file was the norm, but please feel free to move around if needed.
* Zelcore wallet info moved to bottom of file.
* fix minor typos and punctuation
* fix minor typos and punctuation
* rewording for clarity and typo corrections
* rewording for clarity and typo corrections
* rewording for clarity and typo corrections
Co-authored-by: Gregg Dourgarian <greggd@aidacreative.com>
* Add proposal for supporting big transactions
* account index program
* fix formatting
* review feedback
* Add cost changes section
* Add cost section and more attack details
* fix lint
* document metadata changes
* nit
* rpc details
* add index meta struct
* add additional proposal and chagne title
* rename proposal file
* rename to address map and rewrite tx format
* no more appends, limit mapping size to 256
* update dos section
* add note about readonly
* restructure message to use enum
* cleanup
* Add BlockHeight CF to blockstore
* Rename CacheBlockTimeService to be more general
* Cache block-height using service
* Fixup previous proto mishandling
* Add block_height to block structs
* Add block-height to solana block
* Fallback to BankForks if block time or block height are not yet written to Blockstore
* Add docs
* Review comments
While going through the tutorial to start a validator I noticed that the output I received from running...
```
solana config set --keypair ~/validator-keypair.json
```
...different from the output I was seeing. Wondering whether the docs are out of date I thought I'd propose an update to the docs just in case.
Jack May
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