dovecot -n

# 2.2.36 (1f10bfa63): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.24 (124e06aa)
# OS: Linux 2.6.32-431.23.3.el6.x86_64 x86_64 CentOS release 6.9 (Final)

''''

plugin {

'''

mail_replica = tcp:10.1.1.20:1111

# replication_sync_timeout = 2s

replication_sync_timeout = 2

''''

}

''''

/var/log/dovecot/dovecot.log

doveadm(lty@cndns.com): Error: replication(lty@cndns.com): Invalid replication_sync_timeout value: 2s

I am talking about the replication_sync_timeout = 2s in the configuration file changed to replication_sync_timeout = 2, no prompt error,  but I get the following prompt

/var/log/dovecot/dovecot.log

Nov 12 14:01:10 replicator: Panic: data stack: Out of memory when allocating 268435496 bytes
Nov 12 14:01:10 replicator: Error: Raw backtrace: /usr/lib64/dovecot/libdovecot.so.0() [0x3bdd69f74a] -> /usr/lib64/dovecot/libdovecot.so.0() [0x3bdd69f7b6] -> /usr/lib64/dovecot/libdovecot.so.0() [0x3bdd630b8a] -> /usr/lib64/dovecot/libdovecot.so.0() [0x3bdd69d34a] -> /usr/lib64/dovecot/libdovecot.so .0() [0x3bdd69d558] -> /usr/lib64/dovecot/libdovecot.so.0() [0x3bdd6bb818] -> /usr/lib64/dovecot/libdovecot.so.0() [0x3bdd69b0a2] -> /usr/ Lib64/dovecot/libdovecot.so.0(buffer_write+0x89) [>xvebd/b. -> dovecot/replicator() [0x4040d0] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0x61) [0x3bdd6b4921] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0xbf ) [0x3bdd6b65cf] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0x3c) [0x3bdd6b49dc] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x3bdd6b4b98] -> /usr/lib64/do Vecot/libdovecot.so.0(master_service_run+0x13) [0x3bdd63ad43] -> dovecot/replicator(main+0x17e) [0x40461e] -> /lib64/libc.so.6(__libc_start_main+0xfd) [0x3bb6a1ed1d] -> dovecot/ Replicator() [0x4031f9]
Nov 12 14:01:10 replicator: Fatal: master: service(replicator): child 19591 killed with signal 6 (core dumps disabled)

/var/log/dovecot/sieve.log

Nov 12 13:54:36 lda(lty@cndns.com): Warning: replication(lty@cndns.com): Remote sent invalid input: -
Nov 12 13:54:36 lda(lty@cndns.com): Info: sieve: msgid=unspecified: stored mail into mailbox 'Junk'
Nov 12 14:01:10 lda(lty@cndns.com): Warning: replication(lty@cndnscom): Sync failure:
Nov 12 14:01:10 lda(lty@cndns.com): Warning: replication(lty@cndns.com): Remote sent invalid input: -

Please help me, thank you