Files on common mount path not syncd while reading

Hello,

I have a 10VM based product setup. A suite of applications are installed on each of the VMs. However, one particular application is installed on each and every one of the 10 VMs. Now, these 10VMs have files accessed on a common mount path /mnt/log or /mnt/home. When some of the VMs read the content of the files on this path, the files are not up to date. How can I ensure they are in sync at the time of reading. Write time sync issue issue is not present.Kindly suggest some ways to ensure that when red happen requisite info is up to date when accessed

Thanks in advance