replication time increases why (2 replies)

Dear All,

IT's very urgent.

I have two DB servers both are master and slave of each other.

i made some changes in my.cnf files

64GB of RAM on each server with OS solaris 10

==================
key_buffer = 8G
max_allowed_packet = 32M
table_cache = 2048
sort_buffer_size = 8M
read_buffer_size = 8M
read_rnd_buffer_size = 32M
myisam_sort_buffer_size = 256M
thread_cache_size = 32
query_cache_size = 50M
query_cache_limit = 16M
thread_concurrency = 16
join_buffer_size = 128M
binlog_cache_size = 64M
tmp_table_size = 512M
max_heap_table_size = 128M
=======================


problem is when i increase traffic on one server it's replication time is increase which cases problems for me

time state
30 has read all relay log; waiting for the slave I/O thread to update


how can i fix the time which is increasing continuously .

thanks