* Chunked format -> blinded
* LZ4 -> ZSTD
* Implemented parent block root support for history download
* Rationale: Allows to optimize GC collection easily on state
reconstruction and it allows to read fast attestations in historical
states reader
Bumps [golang.org/x/crypto](https://github.com/golang/crypto) from
0.16.0 to 0.17.0.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="9d2ee975ef"><code>9d2ee97</code></a>
ssh: implement strict KEX protocol changes</li>
<li><a
href="4e5a26183e"><code>4e5a261</code></a>
ssh: close net.Conn on all NewServerConn errors</li>
<li><a
href="152cdb1503"><code>152cdb1</code></a>
x509roots/fallback: update bundle</li>
<li><a
href="fdfe1f8531"><code>fdfe1f8</code></a>
ssh: defer channel window adjustment</li>
<li><a
href="b8ffc16e10"><code>b8ffc16</code></a>
blake2b: drop Go 1.6, Go 1.8 compatibility</li>
<li><a
href="7e6fbd82c8"><code>7e6fbd8</code></a>
ssh: wrap errors from client handshake</li>
<li><a
href="bda2f3f5cf"><code>bda2f3f</code></a>
argon2: avoid clobbering BP</li>
<li>See full diff in <a
href="https://github.com/golang/crypto/compare/v0.16.0...v0.17.0">compare
view</a></li>
</ul>
</details>
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We've got a report from a user that erigon fails to run with this error:
```
/opt/erigon/releases/latest/bin/erigon: error while loading shared libraries: libsilkworm_capi.so: cannot open shared object file: No such file or directory
```
On this system erigon is executed using a service-account user which has
no permission to access the build user's $HOME where the
libsilkworm_capi.so resides (inside $GOPATH/pkg/mod).
This adds a support to silkworm-go to look for the library relative to
the executable path on Linux:
d4ec8a8bce
and a new `make DIST=<path> install` command which copies both the
library and erigon binary to any destination.
What does this PR do:
* Optional Backfilling and Caplin Archive Node
* Create antiquary for historical states
* Fixed gaps of chain gap related to the Head of the chain and anchor of
the chain.
* Added basic reader object to Read the Historical state
# Background
Erigon currently uses a combination of Victoria Metrics and Prometheus
client for providing metrics.
We want to rationalize this and use only the Prometheus client library,
but we want to maintain the simplified Victoria Metrics methods for
constructing metrics.
This task is currently partly complete and needs to be finished to a
stage where we can remove the Victoria Metrics module from the Erigon
code base.
# Summary of changes
- Remove `UsePrometheusClient` boolean flag
- Remove `VictoriaMetrics` client lib and related code (simplifies
registry and prometheus http handler initialisation since now we have
only 1 registry and can use default `promhttp.Handler`)
Reason:
- produce and seed snapshots earlier on chain tip. reduce depnedency on
"good peers with history" at p2p-network.
Some networks have no much archive peers, also ConsensusLayer clients
are not-good(not-incentivised) at serving history.
- avoiding having too much files:
more files(shards) - means "more metadata", "more lookups for
non-indexed queries", "more dictionaries", "more bittorrent
connections", ...
less files - means small files will be removed after merge (no peers for
this files).
ToDo:
[x] Recent 500K - merge up to 100K
[x] Older than 500K - merge up to 500K
[x] Start seeding 100k files
[x] Stop seeding 100k files after merge (right before delete)
In next PR:
[] Old version of Erigon must be able download recent hashes. To achieve
it - at first start erigon will download preverified hashes .toml from
s3 - if it's newer that what we have (build-in) - use it.
