Commit Graph

86 Commits

Author SHA1 Message Date
Eric Mastro ccf349bd14
[marketplace] Add Reservations Module (#340)
* [marketplace] reservations module

- add de/serialization for Availability
- add markUsed/markUnused in persisted availability
- add query for unused
- add reserve/release
- reservation module tests
- split ContractInteractions into client contracts and host contracts
- remove reservations start/stop as the repo start/stop is being managed by the node
- remove dedicated reservations metadata store and use the metadata store from the repo instead
- Split ContractInteractions into:
  - ClientInteractions (with purchasing)
  - HostInteractions (with sales and proving)
- compilation fix for nim 1.2

[repostore] fix started flag, add tests

[marketplace] persist slot index
For loading the sales state from chain, the slot index was not previously persisted in the contract. Will retrieve the slot index from the contract when the sales state is loaded.

* Revert repostore changes

In favour of separate PR https://github.com/status-im/nim-codex/pull/374.

* remove warnings

* clean up

* tests: stop repostore during teardown

* change constructor type identifier

Change Contracts constructor to accept Contracts type instead of ContractInteractions.

* change constructor return type to Result instead of Option

* fix and split interactions tests

* clean up, fix tests

* find availability by slot id

* remove duplication in host/client interactions

* add test for finding availability by slotId

* log instead of raiseAssert when failed to mark availability as unused

* move to SaleErrored state instead of raiseAssert

* remove unneeded reverse

It appears that order is not preserved in the repostore, so reversing does not have the intended effect here.

* update open api spec for potential rest endpoint errors

* move functions about available bytes to repostore

* WIP: reserve and release availabilities as needed

WIP: not tested yet

Availabilities are marked as used when matched (just before downloading starts) so that future matching logic does not match an availability currently in use.

As the download progresses, batches of blocks are written to disk, and the equivalent bytes are released from the reservation module. The size of the availability is reduced as well.

During a reserve or release operation, availability updates occur after the repo is manipulated. If the availability update operation fails, the reserve or release is rolled back to maintain correct accounting of bytes.

Finally, once download completes, or if an error occurs, the availability is marked as unused so future matching can occur.

* delete availability when all bytes released

* fix tests + cleanup

* remove availability from SalesContext callbacks

Availability is no longer used past the SaleDownloading state in the state machine. Cleanup of Availability (marking unused) is handled directly in the SaleDownloading state, and no longer in SaleErrored or SaleFinished. Likewise, Availabilities shouldn’t need to be handled on node restart.

Additionally, Availability was being passed in SalesContext callbacks, and now that Availability is only used temporarily in the SaleDownloading state, Availability is contextually irrelevant to the callbacks, except in OnStore possibly, though it was not being consumed.

* test clean up

* - remove availability from callbacks and constructors from previous commit that needed to be removed (oopsie)
- fix integration test that checks availabilities
  - there was a bug fixed that crashed the node due to a missing `return success` in onStore
  - the test was fixed by ensuring that availabilities are remaining on the node, and the size has been reduced
- change Availability back to non-ref object and constructor back to init
- add trace logging of all state transitions in state machine
- add generally useful trace logging

* fixes after rebase

1. Fix onProve callbacks
2. Use Slot type instead of tuple for retrieving active slot.
3. Bump codex-contracts-eth that exposes getActivceSlot call.

* swap contracts branch to not support slot collateral

Slot collateral changes in the contracts require further changes in the client code, so we’ll skip those changes for now and add in a separate commit.

* modify Interactions and Deployment constructors

- `HostInteractions` and `ClientInteractions` constructors were simplified to take a contract address and no overloads
- `Interactions` prepared simplified so there are no overloads
- `Deployment` constructor updated so that it takes an optional string parameter, instead `Option[string]`

* Move `batchProc` declaration

`batchProc` needs to be consumed by both `node` and `salescontext`, and they can’t reference each other as it creates a circular dependency.

* [reservations] rename `available` to `hasAvailable`

* [reservations] default error message to inner error msg

* add SaleIngored state

When a storage request is handled but the request does match availabilities, the sales agent machine is sent to the SaleIgnored state. In addition, the agent is constructed in a way that if the request is ignored, the sales agent is removed from the list of active agents being tracked in the sales module.
2023-04-04 17:05:16 +10:00
markspanbroek 4ffe7b8e06
Generate proofs when required (#383)
* [maintenance] speedup integration test

* [rest api] add proofProbability parameter to storage requests

* [integration] negotiation test ends when contract starts

* [integration] reusable 2 node setup for tests

* [integration] introduce CodexClient for tests

* [node] submit storage proofs when required

* [contracts] Add Slot type

* [proving] replace onProofRequired & submitProof with onProve

Removes duplication between Sales.onProve() and
Proving.onProofRequired()
2023-03-27 15:47:25 +02:00
Ben Bierens da79660f8e
Enable stylecheck (#353)
* applying styleCheck

* stuck on vendor folder

* Applies style check

* Turns styleCheck back off

* switches to stylecheck:usages

* Fixes empty template casing

* rolls up nim-blscurve, nim-datastore, nim-ethers, nim-leopard, and nim-taskpools.

* bumps nim-confutils and removes unused import from fileutils.nim

* Unused using in fileutils.nim is required by CI

* Reverts bump of nim-confutils module
2023-03-10 08:02:54 +01:00
markspanbroek 7a0a48e4a5
Fix warnings (drops Nim 1.2) (#348)
* [build] disable XCannotRaiseY hint

There are too many {.raises:[Defect].} in the
libraries that we use, drowning out all other
warnings and hints

* [build] disable BareExcept warning

Not yet enabled in a released version of Nim,
so libraries that we depend on have not fixed
this yet, drowning out our own hints and warnings

* [build] disable DotLikeOps warning

dot-like ops were an experiment that is not going
land in Nim

* [build] compile log statements in tests

When running tests, all log statements are compiled.
They are filtered out at runtime during a test run.

* [build] do not build executable when running unit test

It's already built in the integration test

* [build] Fix warnings

- remove unused code
- remove unused imports
- stop using deprecated stuff

* [build] Put compiler flags behind nim version checks

* [CI] remove Nim 1.2 compatibility
2023-03-09 12:23:45 +01:00
Eric Mastro 25f68c1e4c
[marketplace] Load sales state from chain (#306)
* [marketplace] get active slots from chain

# Conflicts:
#	codex/contracts/market.nim

* [marketplace] make on chain event callbacks async

# Conflicts:
#	tests/codex/helpers/mockmarket.nim

* [marketplace] make availability optional for node restart

# Conflicts:
#	tests/codex/testsales.nim

* [marketplace] add async state machine

Allows for `enterAsync` to be cancelled.

* [marketplace] move sale process to async state machine

* [marketplace] sales state machine tests

* bump dagger-contracts

* [marketplace] fix ci issue with chronicles output

* PR comments

- add slotIndex to `SalesAgent` constructor
- remove `SalesAgent.init`
- rename `SalesAgent.init` to `start` and `SalesAgent.deinit` to `stop`.
- rename `SalesAgent. populateRequest` to `SalesAgent.retreiveRequest`.
- move availability removal to the downloading state. once availability is persisted to disk, it should survive node restarts.
-

* [marketplace] handle slot filled by other host

Handle the case when in the downloading, proving, or filling states, that another host fills the slot.

* [marketplace] use requestId for mySlots

* [marketplace] infer slot index from slotid

prevents reassigning a random slot index when restoring state from chain

* [marketplace] update to work with latest contracts

* [marketplace] clean up

* [marketplace] align with contract changes

- getState / state > requestState
- getSlot > getRequestFromSlotId
- support MarketplaceConfig
- support slotState, remove unneeded Slot type
- collateral > config.collateral.initialAmount
- remove proofPeriod contract call
- Revert reason “Slot empty” > “Slot is free”
- getProofEnd > read SlotState

Tests for changes

* [marketplace] add missing file

* [marketplace] bump codex-contracts-eth

* [config] remove unused imports

* [sales] cleanup

* [sales] fix: do not crash when fetching state fails

* [sales] make slotIndex non-optional

* Rebase and update NBS commit

Rebase on top of main and update NBS commit to the CI fix.

* [marketplace] use async subscription event handlers

* [marketplace] support slotIndex no longer optional

Previously, SalesAgent.slotIndex had been moved to not optional. However, there were still many places where optionality was assumed. This commit removes those assumuptions.

* [marketplace] sales state machine: use slotState

Use `slotState` instead of `requestState` for sales state machine.

* [marketplace] clean up

* [statemachine] adds a statemachine for async workflows

Allows events to be scheduled synchronously.

See https://github.com/status-im/nim-codex/pull/344

Co-Authored-By: Ben Bierens <thatbenbierens@gmail.com>
Co-Authored-By: Eric Mastro <eric.mastro@gmail.com>

* [market] make market callbacks synchronous

* [statemachine] export Event

* [statemachine] ensure that no errors are raised

* [statemachine] add machine parameter to run method

* [statemachine] initialize queue on start

* [statemachine] check futures before cancelling them

* [sales] use new async state machine

- states use new run() method and event mechanism
- StartState starts subscriptions and loads request

* [statemachine] fix unsusbscribe before subscribe

* [sales] replace old state transition tests

* [sales] separate state machine from sales data

* [sales] remove reference from SalesData to Sales

* [sales] separate sales context from sales

* [sales] move decoupled types into their own modules

* [sales] move retrieveRequest to SalesData

* [sales] move subscription logic into SalesAgent

* [sales] unsubscribe when finished or errored

* [build] revert back to released version of nim-ethers

* [sales] remove SaleStart state

* [sales] add missing base method

* [sales] move asyncSpawn helper to utils

* [sales] fix imports

* [sales] remove unused variables

* [sales statemachine] add async state machine error handling (#349)

* [statemachine] add error handling to asyncstatemachine

- add error handling to catch errors during state.run
- Sales: add ErrorState to identify which state to transition to during an error. This had to be added to SalesAgent constructor due to circular dependency issues, otherwise it would have been added directly to SalesAgent.
- Sales: when an error during run is encountered, the SaleErrorState is constructed with the error, and by default (base impl) will return the error state, so the machine can transition to it. This can be overridden by individual states if needed.

* [sales] rename onSaleFailed to onSaleErrored

Because there is already a state named SaleFailed which is meant to react to an onchain RequestFailed event and also because this callback is called from SaleErrored, renaming to onSaleErrored prevents ambiguity and confusion as to what has happened at the callback callsite.

* [statemachine] forward error to state directly

without going through a machine method first

* [statemachine] remove unnecessary error handling

AsyncQueueFullError is already handled in schedule()

* [statemachine] test that cancellation ignores onError

* [sales] simplify error handling in states

Rely on the state machine error handling instead
of catching errors in the state run method

---------

Co-authored-by: Mark Spanbroek <mark@spanbroek.net>

* [statemachine] prevent memory leaks

prevent memory leaks and nil access defects by:
- allowing multiple subscribe/unsubscribes of salesagent
- disallowing individual salesagent subscription calls to be made externally (requires the .subscribed check)
- allowing mutiple start/stops of asyncstatemachine
- disregard asyncstatemachine schedules if machine not yet started

* [salesagent] add salesagent-specific tests

1. test multiple subscribe/unsubscribes
2. test scheduling machine without being started
3. test subscriptions are working correctly with external events
4. test errors can be overridden at the state level for ErrorHandlingStates.

---------

Co-authored-by: Eric Mastro <eric.mastro@gmail.com>
Co-authored-by: Mark Spanbroek <mark@spanbroek.net>
Co-authored-by: Ben Bierens <thatbenbierens@gmail.com>
2023-03-08 14:34:26 +01:00
Dmitriy Ryajov 0beeefd760
Repo limits (#319)
* initial implementation of repo store

* allow isManifest on multicodec

* rework with new blockstore

* add raw codec

* rework listBlocks

* remove fsstore

* reworking with repostore

* bump datastore

* fix listBlocks iterator

* adding store's common tests

* run common store tests

* remove fsstore backend tests

* bump datastore

* add `listBlocks` tests

* listBlocks filter based on block type

* disabling tests in need of rewriting

* allow passing block type

* move BlockNotFoundError definition

* fix tests

* increase default advertise loop sleep to 10 mins

* use `self`

* add cache quota functionality

* pass meta store and start repo

* add `CacheQuotaNamespace`

* pass meta store

* bump datastore to latest master

* don't use os `/` as key separator

* Added quota limits support

* tests for quota limits

* add block expiration key

* remove unnesesary space

* use idleAsync in listBlocks

* proper test name

* re-add contrlC try/except

* add storage quota and block ttl config options

* clarify comments

* change expires key format

* check for block presence before storing

* bump datastore

* use dht with fixed datastore `has`

* bump datastore to latest master

* bump dht to latest master
2022-12-02 18:00:55 -06:00
Dmitriy Ryajov 5abf80cc69
Block download (#304)
* track inflight requests

* preperly handle precense updates

* trace number of of scheduled blocks

* invoke `payForBlocks` at the correct time

* reduntant block info on want list updates

* don't update prices in task handler

* PeerID -> PeerId

* cleanup

* proper log topic

* better chronicles topic filtering

* more trace logging

* sort want blocks

* wip - fix tests

* wip - fix tests, presence changes

* fix small test issue

* return price

* payment related changes

* misc

* re-enable payment tests

* fix warn wording

* fix `u256` conversion

* minor misc changes

* don't idle for so long on `encode`

* logging

* move buff

* disable cache by default

* disable cache by default

* fix streamOneBlock

* log node stopping/exiting

* trace logging

* don't stringify cid

* use `self`

* quick cleanup

* rename enums

* rename enums

* turns out we don't needs this test

* fix wording
2022-11-15 09:46:21 -06:00
markspanbroek 4175689745
Load purchase state from chain (#283)
* [purchasing] Simplify test

* [utils] Move StorageRequest.example up one level

* [purchasing] Load purchases from market

* [purchasing] load purchase states

* Implement myRequest() and getState() methods for OnChainMarket

* [proofs] Fix intermittently failing tests

Ensures that examples of proofs in tests are never of length 0;
these are considered invalid proofs by the smart contract logic.

* [contracts] Fix failing test

With the new solidity contracts update, a contract can only
be paid out after it started.

* [market] Add method to get request end time

* [purchasing] wait until purchase is finished

Purchase.wait() would previously wait until purchase
was started, now we wait until it is finished.

* [purchasing] Handle 'finished' and 'failed' states

* [marketplace] move to failed state once request fails

- Add support for subscribing to request failure events.
- Add supporting contract tests for subscribing to request failure events.
- Allow the PurchaseStarted state to move to PurchaseFailure once a request failure event is emitted
- Add supporting tests for moving from PurchaseStarted to PurchaseFailure
- Add state transition tests for PurchaseUnknown.

* [marketplace] Fix test with longer sleepAsync

* [integration] Add function to restart a codex node

* [purchasing] Set client address before requesting storage

To prevent the purchase id (which equals the request id)
from changing once it's been submitted.

* [contracts] Fix: OnChainMarket.getState()

Had the wrong method signature before

* [purchasing] Load purchases on node start

* [purchasing] Rename state 'PurchaseError' to 'PurchaseErrored'

Allows for an exception type called 'PurchaseError'

* [purchasing] Load purchases in background

No longer calls market.getRequest() for every purchase
on node start.

* [contracts] Add `$` for RequestId, SlotId and Nonce

To aid with debugging

* [purchasing] Add Purchasing.stop()

To ensure that all contract interactions have both a
start() and a stop() for

* [tests] Remove sleepAsync where possible

Use `eventually` loop instead, to make sure that we're
not waiting unnecessarily.

* [integration] Fix: handle non-json response in test

* [purchasing] Add purchase state to json

* [integration] Ensure that purchase is submitted before restart

Fixes test failure on slower CI

* [purchasing] re-implement `description` as method

Allows description to be set in the same module where the
state type is defined.

Co-authored-by: Eric Mastro <eric.mastro@gmail.com>

* [contracts] fix typo

Co-authored-by: Eric Mastro <eric.mastro@gmail.com>

* [market] Use more generic error type

Should we decide to change the provider type later

Co-authored-by: Eric Mastro <eric.mastro@gmail.com>

Co-authored-by: Eric Mastro <eric.mastro@gmail.com>
2022-11-08 08:10:17 +01:00
Michael Bradley c893b1f0cb
track latest nim-libp2p's master branch (#248)
* [build] track nim-libp2p's unstable branch

* cid formatIt change

* track nim-libp2p-unstable

* don't stringify cid

* Fixed testblockexc.nim

1. Assign price to blocks
2. Delete on node1 cached blocks from node2 before buying them again

* add trace logging

* init pricing info

* remove duplicate price setting

* cid serialization in trace logs

* bumping dht to latest main

* bump

Co-authored-by: Dmitriy Ryajov <dryajov@gmail.com>
Co-authored-by: Bulat-Ziganshin <bulat.ziganshin@gmail.com>
2022-11-02 11:40:28 -06:00
Dmitriy Ryajov e50ea88411
Remove protobuf serialization (#289)
* add format for cid

* cid formatIt change

* track nim-libp2p-unstable

* rework probuf serialization for por

* add missing include

* removing nim protobuf serialization

* rollback to dht to main

* remove protobuf serialization import
2022-10-27 07:41:34 -06:00
Eric Mastro b9e53e182f [marketplace] support freeing of slots and failed state
Support storage contract parameters to free slots after too many proofs missed, as well as fail a contract after too many slots have been freed.

# Conflicts:
#	vendor/dagger-contracts
2022-10-25 15:10:35 +11:00
Eric Mastro 372f827982 [marketplace] add/remove proofs for contract state
Add or remove proof requirements when a request contract’s state changes. When a request sale has completed (for a slot), the host who purchased that slot now must provide regular proofs for the data they are contracted to hold. This is now enforced by adding the slotId to the HashSet of Ids for which to require proofs. When a request has been cancelled (not all slots were filled before the request expired), proofs no longer need to be provided and the slotId is removed from teh HashSet.

Add `isCancelled` and `isSlotCancelled` checks to query the contract state without relying the on the state context variable in the contract. Because contract state can only be updated in a transaction, and the client withdrawing funds is responsible for changing the contract state to “Cancelled”, the `isCancelled` and `isSlotCancelled` functions were introduced to check the state regardless of whether or not the client had already withdrawn their funds.
2022-10-25 15:10:35 +11:00
Bulat-Ziganshin 6e6f40016c
Changes required for reasonable upload/download speed (#265)
Increase blocksize from ~8KiB to ~64KiB and remove useless unbounded prefetching on download
* increased upload/download speed on my Win10 Zen3 box to 50/150 MB/s (with FSStore)
* made manifest files 8x smaller
* two more changes in the tests to make them pass
Closes #263
2022-10-06 23:01:25 +03:00
Eric Mastro 6df5a7cf54 [chore] clean up `array[32, byte]` types
- rename `ContractId` to `SlotId`
- add `RequestId`, `PurchaseId`, `Nonce` types as aliases of `array[32, byte]`
- rename `Proving.contracts` to `Proving.slots`
- change signatures of `isSlotCancelled` and `isCancelled` to use `SlotId` and `RequestId` types, respectively.
- change all references to `RequestId`, `SlotId`, and `PurchaseId`
2022-08-26 13:29:09 +10:00
Bulat-Ziganshin f24ded0f76
Download files without padding (#218)
The initial goal of this patch was to allow to download of a file via REST API in exactly the same size as it was uploaded, which required adding fields Chunker.offset and Manifest.originalBytes to keep that size. On top of that, we added more integrity checks to operations on Manifest, and reorganized TestNode.nim to test the actual interaction between node.store and node.retrieve operations.

Note that the wire format of Manifest was changed, so we need to recreate all BlockStores.

* Download without padding
* Fixed chunker tests
* Chunker: get rid of RabinChunker
* Verify offset in the chunker tests
* Use manifest.originalBytesPadded in StoreStream.size
* StoreStream: replace emptyBlock with zeroMem
* Manifest.bytes: compute how many bytes corresponding StoreStream(Manifest, pad) will return
* Manifest: verify originalBytes and originalLen on new/encode/decode
Also set originalBytes in each Manifest creation/update scenario
* Manifest: comments, split code into sections
* Reordered parameters to deal with int64 size in 32-bit builds
* TestNode.nim: combine Store and Retrieve tests
1. Instead of copy-pasting code from node.nim, new test calls node.store() and node.retrieve() in order to check that they can correctly store and then retrieve data
2. New test compares only file contents, manifest contents considered an implementation detail
3. New test chunks at odd chunkSize=BlockSize/1.618 in order to ensure that data retrieved correctly even when buffer sizes mismatch
* TestNode.nim: code refactoring
* Manifest.add: one more test
* Manifest.verify: return Result instead of raising Defect
* Node.store: added blockSize parameter
2022-08-24 15:15:59 +03:00
Michael Bradley, Jr 3d823dcbc6 [stores] update getBlock return type
change return type for `method getBlock` from `Future[?!(?Block)]` to
`Future[?!Block]`

use `type BlockNotFoundError = object of CodexError` to differentiate between
"block not found in the store" and other errors

also make some logic and error handling/messages more consistent across
BlockStore implementations

closes #177
closes #182
closes #210

alternative to #205, #209
2022-08-22 20:52:51 -05:00
markspanbroek 097a4cfd67
Better command line options for Ethereum (#181)
* [contracts] ContractInteractions.new() now requires account parameter

* [cli] Only perform Ethereum interactions when --eth-account is specified

* [cli] Add --persistence option that is disabled by default

* [cli] Use Option for ethDeployment parameter

* [node] Better error reporting when Ethereum node cannot be reached
2022-08-09 06:29:06 +02:00
Mark Spanbroek fd6f8a1386 [sales] Pass along request and slot index in onProve callback 2022-08-08 14:00:55 +02:00
Mark Spanbroek cb5427ca95 [sales] Pass along request and slot index in onStore callback 2022-08-08 14:00:55 +02:00
Mark Spanbroek 3a3d083345 [contracts] Replace size by slotSize 2022-08-08 14:00:55 +02:00
Mark Spanbroek 0494b3617b [contracts] replace totalNodes and nodeId by slots 2022-08-08 14:00:55 +02:00
Mark Spanbroek 360c03e7c4 [contracts] Rename: maxPrice -> reward 2022-08-08 14:00:55 +02:00
Michael Bradley, Jr 75666d01bf [node] add SQLiteStore backend
Closes #138
2022-08-08 02:12:43 -05:00
Dmitriy Ryajov 625facff4a
Better batching (#170)
* add cleaner batching

* pass block instead of cid

* cleanup manifest fetching

* bug: reference correct cid version

* add batch tests

* make sure batch is always <= batchSize
2022-07-29 14:04:12 -06:00
Dmitriy Ryajov 7ccde112f8
Contract store (#161)
* split out manifest and block retrieval

* adding test for `fetchManifest`

* raise exceptions in onStore
2022-07-28 11:44:59 -06:00
Bulat-Ziganshin 0bfe26440e
WIP: Harmonize BlockStore API (remaining functions) (#123) (#130)
BlockStore API got new return types (rationale in https://github.com/status-im/nim-codex/issues/123#issuecomment-1163797753):
- getBlock: Future[?! (?Block)]
- putBlock/delBlock/listBlocks: Future[?!void]
- hasBlock: Future[?!bool]

Plus refactored readOnce(StoreStream) and check received data in its tests.

And replaced local use of AsyncHeapQueue with seq.sort.
2022-07-28 03:39:17 +03:00
Mark Spanbroek afdb5be2d4 Add TODOs to indicate wanted architecture
As discussed in team:
- Retrieving of blocks that are mentioned in the
  manifest should be moved into a BlockStore.
- Sales should be given an instance of BlockStore,
  and an instance of StorageProofs, instead of the
  onStore, onClear, and onProve callbacks
2022-07-20 13:43:20 +02:00
Mark Spanbroek 571aa6f694 [sales] Consistent names for callbacks 2022-07-20 13:43:20 +02:00
Mark Spanbroek 592a3dce4d [sales] Add callback for clearing storage when no longer needed 2022-07-20 13:43:20 +02:00
Mark Spanbroek adcb91a5d5 [node] Store datasets locally when sales asks for it 2022-07-20 13:43:20 +02:00
Mark Spanbroek 7bc5280596 [node] rename PrefetchBatch -> Batch
Reason: in a next commit we'll use the same
constant to fetch data in batches
2022-07-20 13:43:20 +02:00
Mark Spanbroek d4025f4a5f [manifest] Extract logic for decoding a manifest given a cid 2022-07-20 13:43:20 +02:00
Mark Spanbroek 4a4588e2a0 [node] Set callbacks for Sales to retrieve and prove posession of data 2022-07-20 13:43:20 +02:00
Mark Spanbroek 94f6838d19 [node] Fix: ensure that retrieve works for small files 2022-07-20 13:43:20 +02:00
Dmitriy Ryajov 6ad7a6bb96
Batched blocks (#105)
* remove sleep

* throttle prefetch

* break loop if conn closed

* logging

* prefetch blocks in batches

* add blocks batch constant
2022-05-20 10:53:34 -06:00
Michael Bradley 209343087c
Change every dagger to codex (#102) 2022-05-19 13:56:03 -06:00