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net: Reduce default connection limit back to 125 #2066

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cyrossignol
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@cyrossignol cyrossignol commented Mar 20, 2021

The default value for the -maxconnections configuration option was increased from 125 to 250 back in 2014 without a documentation change. This decreases the limit back to 125 connections for listening nodes. 250 connections is a bit high as a default for unsuspecting node operators and it might create an unexpected burden for a device with limited resources.

Since a GUI wallet is a listening node by default, we err on the side of caution. Folks that wish to service a greater number of connections can change the -maxconnections option or set the directive in the configuration file:

maxconnections=250

The default value for "-maxconnections" was increased from 125 to 250
back in 2014 without a documentation change. This decreases the limit
back to 125 connections for listening nodes. 250 connections is a bit
high as a default for unsuspecting node operators and it might create
an unexpected burden for a device with limited resources. Since a GUI
wallet is a listening node by default, we err on the side of caution.
Folks that wish to service a greater number of connections can change
the "maxconnections" option or set the directive in the configuration
file:

    maxconnections=250
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utACK

@jamescowens jamescowens merged commit 20ed7d6 into gridcoin-community:development Mar 20, 2021
@cyrossignol cyrossignol deleted the net-max-conn branch March 21, 2021 00:58
jamescowens added a commit to jamescowens/Gridcoin-Research that referenced this pull request Apr 4, 2021
Added
 - doc: Invite users to donate to Gridcoin Foundation gridcoin-community#1997 (@smoe)
 - rpc: Add "getburnreport" RPC function gridcoin-community#2049 (@cyrossignol)
 - doc: Add undocumented "-showorphans" GUI option to help text gridcoin-community#2058 (@cyrossignol)
 - beacon: Cull beacon db memory (passivation) gridcoin-community#2069 (@jamescowens)
 - gui: Avoid refreshing GUI researcher status while out-of-sync gridcoin-community#2068 (@cyrossignol)
 - consensus: Reimplement checkpoint-based spam protection gridcoin-community#2084 (@cyrossignol)
 - consensus: Verify hardened checkpoints on start up gridcoin-community#2087 (@cyrossignol)

Changed
 - gui: Clarify overview page "stake" field gridcoin-community#2056 (@cyrossignol)
 - doc: Update Copyright headers gridcoin-community#2059 (@barton2526)
 - gui: Update Qt Linguist localization files gridcoin-community#2063 (@cyrossignol)
 - build: update dependencies gridcoin-community#2064 (@barton2526)
 - net: Reduce default connection limit back to 125 gridcoin-community#2066 (@cyrossignol)
 - build: openssl patch gridcoin-community#2074 (@barton2526)
 - translation: Translate /src/qt/locale/bitcoin_en.ts in pt_PT gridcoin-community#2083 (@DjMVeiga)
 - log: Adjust logging gridcoin-community#2076 (@jamescowens)
 - gui: Change scraper tab to Inconsolata monospace font gridcoin-community#2085 (@jamescowens)
 - researcher: Change beacon deferment fix to reference nActiveBeforeSB gridcoin-community#2092 (@jamescowens)

Removed
 - net: Clean up mandatory protocol version transition gridcoin-community#2080 (@cyrossignol)
 - refactor: Remove LessVerbose() function gridcoin-community#2089 (@cyrossignol)

Fixed
 - beacon: Fix a subtle error in renewal chain walker gridcoin-community#2054 (@jamescowens)
 - researcher: Fix "malformed CPID" status for some pool projects gridcoin-community#2052 (@cyrossignol)
 - lint: Misc Typos gridcoin-community#2060 (@barton2526)
 - lint: remove identified duplicate includes gridcoin-community#2061 (@barton2526)
 - gui: Fix splash screen block height progress gridcoin-community#2057 (@cyrossignol)
 - gui: Fix garbage placeholders in some tx notification localizations gridcoin-community#2070 (@cyrossignol)
 - build: Patch libzip to fix mingw compile regression for mingw 9.2+ gridcoin-community#2082 (@jamescowens)
 - gui: Fix shutdown response for failed core init gridcoin-community#2088 (@cyrossignol)
 - researcher: Fix deferment of beacon renewal in superblock window gridcoin-community#2090 (@cyrossignol)
 - gui: Fix typo in beacon status refresh gridcoin-community#2091 (@div72)
jamescowens added a commit to jamescowens/Gridcoin-Research that referenced this pull request Apr 4, 2021
Added
 - doc: Invite users to donate to Gridcoin Foundation gridcoin-community#1997 (@smoe)
 - rpc: Add "getburnreport" RPC function gridcoin-community#2049 (@cyrossignol)
 - gui: Add stats export reminder to beacon wizard auth page gridcoin-community#2050 (@cyrossignol)
 - doc: Add undocumented "-showorphans" GUI option to help text gridcoin-community#2058 (@cyrossignol)
 - beacon: Cull beacon db memory (passivation) gridcoin-community#2069 (@jamescowens)
 - gui: Avoid refreshing GUI researcher status while out-of-sync gridcoin-community#2068 (@cyrossignol)
 - consensus: Reimplement checkpoint-based spam protection gridcoin-community#2084 (@cyrossignol)
 - consensus: Verify hardened checkpoints on start up gridcoin-community#2087 (@cyrossignol)

Changed
 - test: autogenerate data headers gridcoin-community#2030 (@div72)
 - doc: Change copyright years to 2021 gridcoin-community#2042 (@caraka)
 - gui: Clarify overview page "stake" field gridcoin-community#2056 (@cyrossignol)
 - doc: Update Copyright headers gridcoin-community#2059 (@barton2526)
 - gui: Update Qt Linguist localization files gridcoin-community#2063 (@cyrossignol)
 - build: update dependencies gridcoin-community#2064 (@barton2526)
 - net: Reduce default connection limit back to 125 gridcoin-community#2066 (@cyrossignol)
 - build: openssl patch gridcoin-community#2074 (@barton2526)
 - translation: Translate /src/qt/locale/bitcoin_en.ts in pt_PT gridcoin-community#2083 (@DjMVeiga)
 - log: Adjust logging gridcoin-community#2076 (@jamescowens)
 - gui: Change scraper tab to Inconsolata monospace font gridcoin-community#2085 (@jamescowens)
 - researcher: Change beacon deferment fix to reference nActiveBeforeSB gridcoin-community#2092 (@jamescowens)

Removed
 - net: Clean up mandatory protocol version transition gridcoin-community#2080 (@cyrossignol)
 - refactor: Remove LessVerbose() function gridcoin-community#2089 (@cyrossignol)

Fixed
 - build: Fix depends cross-compilation for macOS gridcoin-community#2038 (@cyrossignol)
 - build: Deal with Qt depends .qmake.stash file gridcoin-community#2048 (@cyrossignol)
 - beacon: Fix a subtle error in renewal chain walker gridcoin-community#2054 (@jamescowens)
 - researcher: Fix "malformed CPID" status for some pool projects gridcoin-community#2052 (@cyrossignol)
 - lint: Misc Typos gridcoin-community#2060 (@barton2526)
 - lint: remove identified duplicate includes gridcoin-community#2061 (@barton2526)
 - gui: Fix splash screen block height progress gridcoin-community#2057 (@cyrossignol)
 - gui: Fix garbage placeholders in some tx notification localizations gridcoin-community#2070 (@cyrossignol)
 - build: Patch libzip to fix mingw compile regression for mingw 9.2+ gridcoin-community#2082 (@jamescowens)
 - gui: Fix shutdown response for failed core init gridcoin-community#2088 (@cyrossignol)
 - researcher: Fix deferment of beacon renewal in superblock window gridcoin-community#2090 (@cyrossignol)
 - gui: Fix typo in beacon status refresh gridcoin-community#2091 (@div72)
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2 participants