Increase heap memory for the data nodes. 1GB for a data node is too small if you put heavy indexing on it over a certain period of time. Your description matches the situation of getting tight on GC.
You could also increase the ping timeout from 5s to something like 30s. There are are many posting threads in this mailing list dealing with this kind of issue. If you set up VMs on a single host, you can not test everything, I recommend to set up ES nodes on many hosts, for example to test larger heaps, network communication with discovery, and network disconnects. Jörg -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/CAKdsXoHnSRiE9aoHRXJRV_M1zHQvSB3z0BLmwDN79D5qkH-SZg%40mail.gmail.com. For more options, visit https://groups.google.com/groups/opt_out.
