Are there any ways to sync mempool from another nodes faster? I still use bitcoin 0.13.2 for some reasons. Recent mempool size is very high so syncing mempool takes for a long time, over two days. Are there any ways to sync mempool faster? I have some bitcoind nodes. Some of them have already finished to sync full mempool. I hope I can copy mempool from my another nodes.
I had a similar issue where I restarted my bitcoin node for changing some parameters and it took half a day to catch upto to all uncomfirmed tx. Bitcoin 0.14 has a feature that stores current mempool to disk and loads it back on startup https://github.com/bitcoin/bitcoin/pull/8448. It should be possible to copy mempool.dat files to your other nodes that are behind.