Elasticsearch issue sync

[yan_gong]

Hi, I have met some questions of Elasticsearch in recently that the shards of primary is different from replicas ,besides ,there are some waring in my logs such as "
[es-social-node-1] [top_index_mt4_analysis_users_app96fdd9d4293f_6868-fec5e66d5][1] can't to issue sync id [AWfEWwyGmH8rxnLLTg1S] for out of sync replica [[top_index_mt4_analysis_users_app96fdd9d4293f_6868-fec5e66d5][1], node[8r6Rob64S7OQaKWIXACBuA], [R], s[STARTED], a[id=OnTLcssATPy6rD1A_guJUw]] with num docs [12558]; num docs on primary [12559]"
Could anyone can help me ?

[Christian_Dahlqvist]

Which version are you using? What does you config look like?

[yan_gong]

My Elasticsearch version is 5.6.8 , my config is

cluster.name: es-social
node.name: es-social-node-1
path.repo: /mnt/backup
network.host: 192.168.0.79
http.port: 9299
discovery.zen.ping.unicast.hosts: ["192.168.0.83", "192.168.0.84"]
discovery.zen.minimum_master_nodes: 2