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infra-nimbus/ansible/roles/nimbus-era-files/README.md

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Description

This role configures a Systemd timer which generates Nimbus ERA files weekly.

The purpose of those is to save space by sharing the same historical data between nodes.

Read more about ERA files here.

Configuration

nimbus_era_files_timer_name: 'nimbus-era-files'
nimbus_era_files_timer_update_name: '{{ nimbus_era_files_timer_name }}-update'
nimbus_era_files_timer_verify_name: '{{ nimbus_era_files_timer_name }}-verify'
nimbus_era_files_timer_path: '/data/era'
nimbus_era_files_nclidb_path: '/data/nimbus/repo/build/bin/ncli_db'
nimbus_era_files_db_path: '/data/nimbus/data/db'
#nimbus_era_files_network: 'holesky'

Management

The timers runs weekly with 12h random delay by default, but you can start it manually:

 > systemctl -o cat status nimbus-era-files-update
● nimbus-era-files-update.service - Update Nimbus beacon node ERA files
     Loaded: loaded (/etc/systemd/system/nimbus-era-files-update.service; static; vendor preset: enabled)
     Active: inactive (dead) since Wed 2022-07-13 20:22:16 UTC; 2h 31min ago
TriggeredBy: ● nimbus-era-files-update.timer
       Docs: https://github.com/status-im/infra-role-systemd-timer
    Process: 153635 ExecStart=/data/beacon-node-mainnet-stable-01/repo/build/ncli_db exportEra --db=/data/beacon-node-mainnet-stable-01/data/shared_mainnet_0/db (code=exited, status=0/SUCCESS)
   Main PID: 153635 (code=exited, status=0/SUCCESS)

Written all complete eras
All time are ms
     Average,       StdDev,          Min,          Max,      Samples,         Test
     565.673,       41.529,      486.430,      635.203,           45, tState
    1107.374,      147.118,      685.914,     1293.401,           45, tBlocks
nimbus-era-files-update.service: Succeeded.
Finished Update Nimbus beacon node ERA files.

admin@linux-03.he-eu-hel1.nimbus.holesky:~ % systemctl -o cat status nimbus-era-files-verify
× nimbus-era-files-verify.service - Verify Nimbus beacon node ERA files
     Loaded: loaded (/etc/systemd/system/nimbus-era-files-verify.service; static)
     Active: failed (Result: exit-code) since Wed 2022-11-23 18:17:58 UTC; 39min ago
TriggeredBy: ● nimbus-era-files-verify.timer
       Docs: https://github.com/status-im/infra-role-systemd-timer
    Process: 444226 ExecStart=/usr/local/bin/nimbus-era-files-verify (code=exited, status=1/FAILURE)
   Main PID: 444226 (code=exited, status=1/FAILURE)
        CPU: 333ms

Starting Verify Nimbus beacon node ERA files...
Checking: /data/era/holesky-00000-043db0d9.era
895390e92edc03df7096e9f51e51896e8dbe6e7e838180dadbfd869fdd77a659
Checking: /data/era/holesky-00001-d530d14d.era