<div dir="ltr"><br><div>If they report each other as down, then node A have lost connection with the other nodes sometime ago.</div><div>Or at least the process links between mnesia on A and B, A and C where broken.</div><div><br></div><div>Erlang distribution will by default reconnect to the nodes as you send a msg between A and B and the erlang-network will be</div><div>reconnected, though mnesia should detect that the network was partitioned and should not reconnect.</div><div><br></div><div>So my guess it that the erlang connection was down for a short period of time, or during the start and they</div><div>never had (or could get) a connection when mnesia started on A, and afterwards node A connected to and B,C where mnesia was already started,</div><div>but that should also generated a partitioned_network event.</div><div><br></div><div>/Dan</div><div><br></div><div class="gmail_quote"><div dir="ltr">On Fri, Feb 2, 2018 at 6:38 AM Saurav Prakash <<a href="mailto:sauravprakash2968@gmail.com">sauravprakash2968@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto">I <span style="font-family:helvetica;font-size:medium">have an erlang(release 17.3) mnesia cluster of 3 nodes running in 1 datacenter with disk+ram based tables. Once in a while I would see that one node at random,say A, would show other 2 nodes as stopped(stopped_db_nodes). Also other 2 nodes, say B and C would show A in stopped_db_nodes. This basically leaves the cluster partitioned although no network split actually happens.The call to erlang:nodes() on all 3 nodes return the whole cluster.I don't even see mnesia system events of partition,maybe because the erlang node never went down.</span><p style="margin:0px 0px 10px;font-family:helvetica;font-size:medium">Is there a bug somewhere in mnesia that causes false network partitions? What would be the right way to remedy this? We are thinking about turning majority on in the cluster.</p></div>
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