doris be log shows Have not get FE Master heartbeat yet.

[ranxuxin001]

My production environment doris be warnning log shows below:

RuntimeLogger E20251127 05:49:52.241976 275 variable.cpp:179] Already exposed doris_cache_create_tablet_rridx_cache_persecond' whose value is 0'
RuntimeLogger W20251127 05:49:52.548332 730 olap_server.cpp:786] Have not get FE Master heartbeat yet

the fe container is running, be container always restart after about 1minute. show frontends and backends shows all node is alive. what is the problem for be please?