savemempool (0.18.1.5 RPC) savemempool Dumps the mempool to disk. It will fail until the previous dump is fully loaded. Examples: > elements-cli savemempool > curl --user myusername --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "savemempool", "params": [] }' -H 'content-type: text/plain;' http://127.0.0.1:7041/