process can't be killed for a long time

[issaxyz]

I used pkill bchd command, but the server seems turn in to a zombie process.
OS: ubuntu 18.04

bchd --version

bchd version 0.18.0

startup script

bchd
--rpclisten=0.0.0.0
--grpclisten=0.0.0.0
--addrindex --txindex --slpindex
-b=./ -C=./config.ini

config.ini

listen=127.0.0.1
rpclisten=0.0.0.0
maxpeers=12
maxpeersperip=1
rpclimituser=xxxxx
rpclimitpass=xxxxx
rpcuser=xxxxx
rpcpass=xxxxx
rpcquirks=1
notls=1

tail -f $WORK_HOME/nohup.out

2021-06-09 16:12:28.196 [INF] SRVR: Stopped: cpuMiner
2021-06-09 16:12:28.196 [INF] SRVR: Stopping: rpcServer
2021-06-09 16:12:28.196 [WRN] RPCS: RPC server shutting down
2021-06-09 16:12:28.197 [INF] RPCS: RPC server shutdown complete
2021-06-09 16:12:28.197 [INF] SRVR: Stopped: rpcServer
2021-06-09 16:12:28.197 [INF] SRVR: Saving fee estimate to database
2021-06-09 16:12:32.417 [INF] SRVR: Fee estimate save complete
2021-06-09 16:12:32.417 [INF] SRVR: Waiting for server waitgroup to complete
2021-06-10 10:15:09.020 [INF] BCHD: Received signal (terminated). Already shutting down...
2021-06-10 10:21:03.765 [INF] BCHD: Received signal (terminated). Already shutting down...

top

%Cpu(s): 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem : 4039088 total, 326820 free, 2243412 used, 1468856 buff/cache
KiB Swap: 0 total, 0 free, 0 used. 2438384 avail Mem

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
739 root 20 0 2360880 1.978g 7856 S 0.0 51.4 7284:52 bchd

[zquestz]

We have had some issues with shutdown. I am also seeing it on my node. When I run trace logs, I get a few peers that don't disconnect and continue to send ping/pong messages. The only way to terminate the process is to kill -9.

[issaxyz]

We have had some issues with shutdown. I am also seeing it on my node. When I run trace logs, I get a few peers that don't disconnect and continue to send ping/pong messages. The only way to terminate the process is to kill -9.

thx, I did what you suggest, only need to resync a few blocks