Sanjay (@sanjay) on Farcaster

Sanjay

@sanjay

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sanjay

5mo

Snapchain v0.4.1 is out. We now have an install script with autoupgrade and a built in grafana dashboard like hubble. You can set it up with the following command curl -sSL raw.githubusercontent.com/farcasterxyz... | bash

sanjay

6mo

Just released Snapchain v0.4.0 to support this change. It will take effect on July 16th 17:00 UTC. Please upgrade your nodes before then. As part of this, we're also extending the existing storage units expiry by one year (no user action required). Snapchain has enough headroom that we don't need to expire yet.

6mo

Farcaster signups are going to become 10x cheaper in July. Signing up now requires a payment of 20c instead of $2. Storage units are proportionally smaller, but this makes it easier for apps to sponsor users. Big shoutout to @sanjay and @dynemyte for major performance improvements on Snapchain which enabled this.

sanjay

hubs

8mo

Released Hubble 0.19.3 which pushes version expiry to May 15. This will be the last hubble update. If you are still running hubs, please switch to snapchain instead of upgrading. Please reach out if you run into any issues with the migration.

sanjay

8mo

Thinking about the upgrade process for Snapchain and looking for feedback. There are going to be two kinds of changes: a) Soft forks (bug fixes, minor improvements and non-consensus breaking changes) b). Hard forks (breaking changes, typically FIP implementations or other major changes that affects consensus)

sanjay

8mo

Warpcast is currently being powered solely by snapchain. If you're publishing only to hubs, make sure you're also publishing to snapchain. Let us know if you run into issues with missing messages or with migrating to snapchain.

snapchain.farcaster.xyz

Migrating to Snapchain from Hubble

sanjay

9mo

Both @neynar and @warpcast are reading/writing to Snapchain now. If you’re using Hubble, you should migrate to use snapchain exclusively and let us know if you run into any issues.

docs.farcaster.xyz

Migrating to snapchain / Farcaster Docs

warpcast.notion.site

Snapchain Mainnet [Public] | Notion

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sanjay

11mo

Probably the most challenging and fun project I’ve ever worked on. Incredible work by @dynemyte @suurkivi and @cassie. Special shoutout to the Informal Systems team for building Malachite, a rock solid rust Tendermint library which powers snapchain.

11mo

Snapchain testnet went live at 4pm today. Over 20,000 blocks have been produced already with a million messages processed. This is real data from mainnet that is mirrored over to test Snapchain's integrity.

sanjay

fc-devs

We've been so focused on snapchain, I forgot to do the Hub protocol release for Nov 27. Just released Hubble 1.17. Please upgrade before current version expires at Dec 11 midnight UTC. Apologies for the short notice!

sanjay

Considering buying a house, and came across this very cool and very legal covenant (from 1946) for the land in the disclosures. Can't say I wasn't tempted to buy just to stick it to them.

sanjay

I was originally leaning towards account ordering. But happy with where we ended up. The biggest issue with blockchains is managing block state growth. Thanks to @cassie for inspiring the solution on how to handle this in snapchains. Also, special thanks to @vrypan.eth for the App Ordering idea.

fc-updates

FIP: Snapchain A new proposal to introduce global ordering to Farcaster hubs. We'll discuss this in more detail in the dev call tomorrow, but sharing an early draft for feedback. https://warpcast.notion.sit...

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sanjay

farcaster

If you enjoy coming up with novel distributed systems algorithms, we have just the challenge for you.

We're starting to think about a new sync model for Farcaster. The current system works but is unlikely to scale up another 10x. Here's our articulation of the problem we want to go after.

sanjay

hubs

Please upgrade Hubble to 1.14.4 which implements storage changes defined in github.com/farcasterxyz... We'll min version on Monday at the latest so all hubs will be ready for Aug 28 when storage units were originally scheduled to expire. If you are manually calculating storage, you'll ne...

github.com

FIP: Extending Storage Expiry · farcasterxyz/protocol · Discussion #191

sanjay

Since this day, we're at 50x the message count, 180x the peer count, ~40x the db size. Perf metrics are harder to compare since it was during an incident but currently p95 merge latency is ~30ms and p95 gossip delay is <1s (vs 2000ms and ~2.5hrs during the incident)

dwr.eth

Entire Warpcast is online trying to get things stable. Thank you for the patience!

101

sanjay

hubs

Hub message disruption today was caused by our hub losing gossip connectivity to all other hubs (unclear why exactly due to a logging bug). It was unable to regain connection due a bad interaction with a libp2p upgrade. Released 1.14.2 with a fix.

sanjay

hubs

Hubble 1.14 is out. It includes a bunch of fixes around follows (consistency issues and large compaction events breaking event streams). If you are using shuttle, make sure you’re on the latest version before upgrading hubs, there’s a breaking api change for events.

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