From 09a11b1c7afb99c4eb2ea239e62e464c6c1f8a6a Mon Sep 17 00:00:00 2001
From: wiz <j@wiz.biz>
Date: Sat, 30 Sep 2023 10:32:36 +0900
Subject: [PATCH] ops: Set UTXO and history limit based on hostname

---
 electrs-start-mainnet | 20 +++++++++++++++++---
 electrs-start-signet  | 16 +++++++++++++++-
 electrs-start-testnet | 20 +++++++++++++++++---
 3 files changed, 49 insertions(+), 7 deletions(-)

diff --git a/electrs-start-mainnet b/electrs-start-mainnet
index e1a6b3c4..7bb10e59 100755
--- a/electrs-start-mainnet
+++ b/electrs-start-mainnet
@@ -3,11 +3,23 @@
 #export PATH="${HOME}/.cargo/bin:${PATH}"
 
 # don't bother making electrs.core files
-ulimit -c
+ulimit -c 0
 
 # get credentials from bitcoin.conf directly
-BITCOIN_RPC_USER=$(grep 'rpcuser=' ${HOME}/bitcoin.conf|cut -d = -f2|head -1)
-BITCOIN_RPC_PASS=$(grep 'rpcpassword=' ${HOME}/bitcoin.conf|cut -d = -f2|head -1)
+BITCOIN_RPC_USER=$(grep 'rpcuser=' "${HOME}/bitcoin.conf"|cut -d = -f2|head -1)
+BITCOIN_RPC_PASS=$(grep 'rpcpassword=' "${HOME}/bitcoin.conf"|cut -d = -f2|head -1)
+
+# base limits
+UTXOS_LIMIT=500
+ELECTRUM_TXS_LIMIT=500
+
+# increase limits based on hostname
+NODENAME=$(hostname|cut -d . -f1)
+LOCATION=$(hostname|cut -d . -f2)
+if [ "${NODENAME}" = "node201" ];then
+	UTXOS_LIMIT=9000
+	ELECTRUM_TXS_LIMIT=9000
+fi
 
 # run in loop in case of crash
 until false
@@ -24,6 +36,8 @@ do
 		--cookie "${BITCOIN_RPC_USER}:${BITCOIN_RPC_PASS}" \
 		--cors '*' \
 		--address-search \
+		--utxos-limit "${UTXOS_LIMIT}" \
+		--electrum-txs-limit "${ELECTRUM_TXS_LIMIT}" \
 		-vvv
 	sleep 1
 done
diff --git a/electrs-start-signet b/electrs-start-signet
index 9c2b8b49..b2f695b1 100755
--- a/electrs-start-signet
+++ b/electrs-start-signet
@@ -3,12 +3,24 @@
 #export PATH="${HOME}/.cargo/bin:${PATH}"
 
 # don't bother making electrs.core files
-ulimit -c
+ulimit -c 0
 
 # get credentials from bitcoin.conf directly
 BITCOIN_RPC_USER=$(grep 'rpcuser=' "${HOME}/bitcoin.conf"|cut -d = -f2|head -1)
 BITCOIN_RPC_PASS=$(grep 'rpcpassword=' "${HOME}/bitcoin.conf"|cut -d = -f2|head -1)
 
+# base limits
+UTXOS_LIMIT=500
+ELECTRUM_TXS_LIMIT=500
+
+# increase limits based on hostname
+NODENAME=$(hostname|cut -d . -f1)
+LOCATION=$(hostname|cut -d . -f2)
+if [ "${NODENAME}" = "node201" ];then
+	UTXOS_LIMIT=9000
+	ELECTRUM_TXS_LIMIT=9000
+fi
+
 # run in loop in case of crash
 until false
 do
@@ -25,6 +37,8 @@ do
 		--cookie "${BITCOIN_RPC_USER}:${BITCOIN_RPC_PASS}" \
 		--cors '*' \
 		--address-search \
+		--utxos-limit "${UTXOS_LIMIT}" \
+		--electrum-txs-limit "${ELECTRUM_TXS_LIMIT}" \
 		-vvv
 	sleep 1
 done
diff --git a/electrs-start-testnet b/electrs-start-testnet
index 63c6e11b..95ced073 100755
--- a/electrs-start-testnet
+++ b/electrs-start-testnet
@@ -3,11 +3,23 @@
 #export PATH="${HOME}/.cargo/bin:${PATH}"
 
 # don't bother making electrs.core files
-ulimit -c
+ulimit -c 0
 
 # get credentials from bitcoin.conf directly
-BITCOIN_RPC_USER=$(grep 'rpcuser=' ${HOME}/bitcoin.conf|cut -d = -f2|head -1)
-BITCOIN_RPC_PASS=$(grep 'rpcpassword=' ${HOME}/bitcoin.conf|cut -d = -f2|head -1)
+BITCOIN_RPC_USER=$(grep 'rpcuser=' "${HOME}/bitcoin.conf"|cut -d = -f2|head -1)
+BITCOIN_RPC_PASS=$(grep 'rpcpassword=' "${HOME}/bitcoin.conf"|cut -d = -f2|head -1)
+
+# base limits
+UTXOS_LIMIT=500
+ELECTRUM_TXS_LIMIT=500
+
+# increase limits based on hostname
+NODENAME=$(hostname|cut -d . -f1)
+LOCATION=$(hostname|cut -d . -f2)
+if [ "${NODENAME}" = "node201" ];then
+	UTXOS_LIMIT=9000
+	ELECTRUM_TXS_LIMIT=9000
+fi
 
 # run in loop in case of crash
 until false
@@ -25,6 +37,8 @@ do
 		--cookie "${BITCOIN_RPC_USER}:${BITCOIN_RPC_PASS}" \
 		--cors '*' \
 		--address-search \
+		--utxos-limit "${UTXOS_LIMIT}" \
+		--electrum-txs-limit "${ELECTRUM_TXS_LIMIT}" \
 		-vvv
 	sleep 1
 done