Monitor fails to get data from the public BSC RPC endpoint

[akolotov]

The following messages appears when the monitor is trying to get stats for the ETH-BSC AMB bridge.

2021-03-30T20:45:18.997Z [checkWorker] Error: Error: Returned error: exceed maximum block range: 5000
    at getPastEvents (/mono/commons/utils.js:185:13)
2021-03-30T20:45:21.292Z [checkWorker2] Error: Error: Returned error: exceed maximum block range: 5000
    at getPastEvents (/mono/commons/utils.js:185:13)
2021-03-30T20:45:23.383Z [checkWorker3] checkWorker3.js Error: Error: Returned error: exceed maximum block range: 5000
    at getPastEvents (/mono/commons/utils.js:185:13)

Consider to implement a fix similar it was provided for ALM in #529.

Just in case, the following is output on STDOUT:

$ timeout -s 9 5m node checkWorker.js && timeout -s 9 5m node checkWorker2.js && timeout -s 9 5m node checkWorker3.js
2021-03-30T20:45:17.968Z (+0ms) [checkWorker] Bridge mode: ARBITRARY_MESSAGE
2021-03-30T20:45:17.970Z (+2ms) [checkWorker] calling getEventsInfo()
2021-03-30T20:45:17.971Z (+0ms) [eventsUtils] checking existing events cache
2021-03-30T20:45:17.993Z (+22ms) [eventsUtils] getting last block numbers
2021-03-30T20:45:18.615Z (+622ms) [eventsUtils] calling oldHomeBridge.getPastEvents('UserRequestForSignature(bytes)')
2021-03-30T20:45:18.618Z (+0ms) [web3Cache] Cache hit for blocks 2756521...6141300
2021-03-30T20:45:18.618Z (+0ms) [web3Cache] Fetching events for blocks 6141301...6141398
2021-03-30T20:45:18.663Z (+45ms) [web3Cache] Saving events cache for amb-eth-bsc/home/0x6943A218d58135793F1FE619414eD476C37ad65a/UserRequestForSignature(bytes) on disk
2021-03-30T20:45:18.664Z (+49ms) [eventsUtils] found 0 events
2021-03-30T20:45:18.665Z (+1ms) [eventsUtils] calling oldForeignBridge.getPastEvents('UserRequestForAffirmation(bytes)')
2021-03-30T20:45:18.666Z (+3ms) [web3Cache] Cache hit for blocks 11375619...12142861
2021-03-30T20:45:18.666Z (+0ms) [web3Cache] Fetching events for blocks 12142862...12142886
2021-03-30T20:45:18.777Z (+111ms) [web3Cache] Saving events cache for amb-eth-bsc/foreign/0x07955be2967B655Cf52751fCE7ccC8c61EA594e2/UserRequestForAffirmation(bytes) on disk
2021-03-30T20:45:18.778Z (+113ms) [eventsUtils] found 0 events
2021-03-30T20:45:18.779Z (+1ms) [eventsUtils] calling homeBridge.getPastEvents('UserRequestForSignature')
2021-03-30T20:45:18.780Z (+3ms) [web3Cache] Cache hit for blocks 2756521...6141300
2021-03-30T20:45:18.781Z (+1ms) [web3Cache] Fetching events for blocks 6141301...6141398
2021-03-30T20:45:18.828Z (+47ms) [web3Cache] Saving events cache for amb-eth-bsc/home/0x6943A218d58135793F1FE619414eD476C37ad65a/UserRequestForSignature(bytes32,bytes) on disk
2021-03-30T20:45:18.829Z (+50ms) [eventsUtils] calling foreignBridge.getPastEvents('RelayedMessage')
2021-03-30T20:45:18.833Z (+5ms) [web3Cache] Cache hit for blocks 11375619...12142861
2021-03-30T20:45:18.834Z (+1ms) [web3Cache] Fetching events for blocks 12142862...12142894
2021-03-30T20:45:18.937Z (+103ms) [web3Cache] Saving events cache for amb-eth-bsc/foreign/0x07955be2967B655Cf52751fCE7ccC8c61EA594e2/RelayedMessage(address,address,bytes32,bool) on disk
2021-03-30T20:45:18.938Z (+109ms) [eventsUtils] calling homeBridge.getPastEvents('AffirmationCompleted')
2021-03-30T20:45:18.941Z (+4ms) [web3Cache] Cache hit for blocks 2756521...5980702
2021-03-30T20:45:18.941Z (+0ms) [web3Cache] Fetching events for blocks 5980703...6141406
2021-03-30T20:45:20.092Z (+0ms) [checkWorker2] calling eventsStats()
2021-03-30T20:45:20.099Z (+0ms) [eventsUtils] checking existing events cache
2021-03-30T20:45:20.410Z (+311ms) [eventsUtils] getting last block numbers
2021-03-30T20:45:20.984Z (+574ms) [eventsUtils] calling oldHomeBridge.getPastEvents('UserRequestForSignature(bytes)')
2021-03-30T20:45:20.985Z (+0ms) [web3Cache] Cache hit for blocks 2756521...6141398
2021-03-30T20:45:20.986Z (+1ms) [web3Cache] Fetching events for blocks 6141399...6141399
2021-03-30T20:45:21.033Z (+47ms) [web3Cache] Saving events cache for amb-eth-bsc/home/0x6943A218d58135793F1FE619414eD476C37ad65a/UserRequestForSignature(bytes) on disk
2021-03-30T20:45:21.035Z (+51ms) [eventsUtils] found 0 events
2021-03-30T20:45:21.035Z (+0ms) [eventsUtils] calling oldForeignBridge.getPastEvents('UserRequestForAffirmation(bytes)')
2021-03-30T20:45:21.036Z (+3ms) [web3Cache] Cache hit for blocks 11375619...12142886
2021-03-30T20:45:21.036Z (+0ms) [web3Cache] Saving events cache for amb-eth-bsc/foreign/0x07955be2967B655Cf52751fCE7ccC8c61EA594e2/UserRequestForAffirmation(bytes) on disk
2021-03-30T20:45:21.037Z (+2ms) [eventsUtils] found 0 events
2021-03-30T20:45:21.037Z (+0ms) [eventsUtils] calling homeBridge.getPastEvents('UserRequestForSignature')
2021-03-30T20:45:21.038Z (+2ms) [web3Cache] Cache hit for blocks 2756521...6141398
2021-03-30T20:45:21.039Z (+1ms) [web3Cache] Fetching events for blocks 6141399...6141399
2021-03-30T20:45:21.128Z (+89ms) [web3Cache] Saving events cache for amb-eth-bsc/home/0x6943A218d58135793F1FE619414eD476C37ad65a/UserRequestForSignature(bytes32,bytes) on disk
2021-03-30T20:45:21.130Z (+93ms) [eventsUtils] calling foreignBridge.getPastEvents('RelayedMessage')
2021-03-30T20:45:21.131Z (+3ms) [web3Cache] Cache hit for blocks 11375619...12142886
2021-03-30T20:45:21.131Z (+0ms) [web3Cache] Fetching events for blocks 12142887...12142894
2021-03-30T20:45:21.234Z (+103ms) [web3Cache] Saving events cache for amb-eth-bsc/foreign/0x07955be2967B655Cf52751fCE7ccC8c61EA594e2/RelayedMessage(address,address,bytes32,bool) on disk
2021-03-30T20:45:21.235Z (+105ms) [eventsUtils] calling homeBridge.getPastEvents('AffirmationCompleted')
2021-03-30T20:45:21.237Z (+3ms) [web3Cache] Cache hit for blocks 2756521...5980702
2021-03-30T20:45:21.237Z (+0ms) [web3Cache] Fetching events for blocks 5980703...6141407
2021-03-30T20:45:22.493Z (+0ms) [checkWorker3] calling detectMediators()
2021-03-30T20:45:22.496Z (+0ms) [eventsUtils] checking existing events cache
2021-03-30T20:45:22.515Z (+19ms) [eventsUtils] getting last block numbers
2021-03-30T20:45:23.129Z (+614ms) [eventsUtils] calling oldHomeBridge.getPastEvents('UserRequestForSignature(bytes)')
2021-03-30T20:45:23.131Z (+0ms) [web3Cache] Cache hit for blocks 2756521...6141399
2021-03-30T20:45:23.131Z (+0ms) [web3Cache] Fetching events for blocks 6141400...6141400
2021-03-30T20:45:23.198Z (+67ms) [web3Cache] Saving events cache for amb-eth-bsc/home/0x6943A218d58135793F1FE619414eD476C37ad65a/UserRequestForSignature(bytes) on disk
2021-03-30T20:45:23.200Z (+71ms) [eventsUtils] found 0 events
2021-03-30T20:45:23.201Z (+1ms) [eventsUtils] calling oldForeignBridge.getPastEvents('UserRequestForAffirmation(bytes)')
2021-03-30T20:45:23.201Z (+3ms) [web3Cache] Cache hit for blocks 11375619...12142886
2021-03-30T20:45:23.202Z (+1ms) [web3Cache] Saving events cache for amb-eth-bsc/foreign/0x07955be2967B655Cf52751fCE7ccC8c61EA594e2/UserRequestForAffirmation(bytes) on disk
2021-03-30T20:45:23.202Z (+1ms) [eventsUtils] found 0 events
2021-03-30T20:45:23.203Z (+1ms) [eventsUtils] calling homeBridge.getPastEvents('UserRequestForSignature')
2021-03-30T20:45:23.204Z (+2ms) [web3Cache] Cache hit for blocks 2756521...6141399
2021-03-30T20:45:23.204Z (+0ms) [web3Cache] Fetching events for blocks 6141400...6141400
2021-03-30T20:45:23.243Z (+39ms) [web3Cache] Saving events cache for amb-eth-bsc/home/0x6943A218d58135793F1FE619414eD476C37ad65a/UserRequestForSignature(bytes32,bytes) on disk
2021-03-30T20:45:23.244Z (+41ms) [eventsUtils] calling foreignBridge.getPastEvents('RelayedMessage')
2021-03-30T20:45:23.245Z (+2ms) [web3Cache] Cache hit for blocks 11375619...12142886
2021-03-30T20:45:23.246Z (+1ms) [web3Cache] Fetching events for blocks 12142887...12142894
2021-03-30T20:45:23.342Z (+96ms) [web3Cache] Saving events cache for amb-eth-bsc/foreign/0x07955be2967B655Cf52751fCE7ccC8c61EA594e2/RelayedMessage(address,address,bytes32,bool) on disk
2021-03-30T20:45:23.343Z (+99ms) [eventsUtils] calling homeBridge.getPastEvents('AffirmationCompleted')
2021-03-30T20:45:23.345Z (+3ms) [web3Cache] Cache hit for blocks 2756521...5980702
2021-03-30T20:45:23.345Z (+0ms) [web3Cache] Fetching events for blocks 5980703...6141408