Why is solana RPC node disk read very high

[zhy827827]

rServer monitoring data solana-validator

solana-validator version:v1.17.24(1.17.25)

                   R           W
md0                 9.61G   494M

It's interesting that disk reads are getting higher and higher！

pidstat $pid

06:10:42     1000         -     12768 244072.00      0.00      0.00       8  |__solRpcEl
06:10:42     1000         -     12769 1243788.00      0.00      0.00      37  |__solRpcEl
06:10:42     1000         -     12770      0.00      0.00      0.00       0  |__solRpcEl
06:10:42     1000         -     12771 1194344.00      0.00      0.00      36  |__solRpcEl
06:10:42     1000         -     12772 240192.00      0.00      0.00       6  |__solRpcEl
06:10:42     1000         -     12773      0.00      0.00      0.00       0  |__solRpcEl
06:10:42     1000         -     12774      0.00      0.00      0.00       0  |__solRpcEl
06:10:42     1000         -     12775      0.00      0.00      0.00       0  |__solRpcEl
06:10:42     1000         -     12776 1135548.00      0.00      0.00      37  |__solRpcEl

ubuntu@mainnet-solana-02:~$ sudo strace -p 12771

strace: Process 12760 attached
futex(0x7f8fd42081b0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x7f8fd42081b0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x7f8fd42081b0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x7f8fd4207d50, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x7f8f0f10e3a4, FUTEX_WAIT_BITSET_PRIVATE, 20, NULL, FUTEX_BITSET_MATCH_ANY) = -1 EAGAIN (Resource temporarily unavailable)
futex(0x7f8f0f10e3a4, FUTEX_WAKE_PRIVATE, 1) = 0
futex(0x7f8f0f112424, FUTEX_WAIT_BITSET_PRIVATE, 34, NULL, FUTEX_BITSET_MATCH_ANY) = -1 EAGAIN (Resource temporarily unavailable)
futex(0x7f8f0f112424, FUTEX_WAKE_PRIVATE, 1) = 0
futex(0x7f8fd4207d50, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x7f90b13b6608, FUTEX_WAIT_BITSET_PRIVATE, 2147483647, NULL, FUTEX_BITSET_MATCH_ANY) = 0
futex(0x7f8fd42081b0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x7f8f0f194320, FUTEX_WAIT_BITSET_PRIVATE, 2147483647, NULL, FUTEX_BITSET_MATCH_ANY) = 0
futex(0x7f8fd42081b0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x7f8fd4207d50, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x7f8f0f167020, FUTEX_WAKE_PRIVATE, 2147483647) = 0
futex(0x7f8fd4207d50, FUTEX_WAKE_PRIVATE, 1) = 1

__SolRpcEl is this thread crazily reading，I checked the source code, __ Solrpcel provides RPC services, but our service has not provided

ExecStart：

ExecStart=/home/ubuntu/solana-release/bin/solana-validator
--identity /home/ubuntu/key/validator-keypair.json
--known-validator 7Np41oeYqPefeNQEHSv1UDhYrehxin3NStELsSKCT4K2
--known-validator GdnSyH3YtwcxFvQrVVJMm1JhTS4QVX7MFsX56uJLUfiZ
--known-validator DE1bawNcRJB9rVm3buyMVfr8mBEoyyu73NBovf2oXJsJ
--known-validator CakcnaRDHka2gXyfbEd2d3xsvkJkqsLw2akB3zsN1D2S
--ledger /opt/sol/validator-ledger
--accounts /mnt/solana-accounts
--rpc-bind-address 0.0.0.0
--no-voting
--rpc-port 8899
--log /opt/sol/logs/sol.log
--entrypoint entrypoint.mainnet-beta.solana.com:8001
--entrypoint entrypoint2.mainnet-beta.solana.com:8001
--entrypoint entrypoint3.mainnet-beta.solana.com:8001
--entrypoint entrypoint4.mainnet-beta.solana.com:8001
--entrypoint entrypoint5.mainnet-beta.solana.com:8001
--dynamic-port-range 8000-9000
--enable-rpc-transaction-history
--expected-genesis-hash 5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d
--no-port-check
--full-rpc-api
--wal-recovery-mode skip_any_corrupted_record
--account-index spl-token-owner
--account-index program-id
--rpc-pubsub-enable-block-subscription
--geyser-plugin-config /home/ubuntu/solana-release/yellowstone-grpc-geyser/config.json
--limit-ledger-size

Is there any way to reduce the reading of disk?

[github-actions]

This repository is no longer in use. Please re-open this issue in the agave repo: https://github.com/anza-xyz/agave