Potential Bug: Frequent Unnecessary Degeneration

Hi All,

We're running two nodes using with replication enabled.

pgpool routinely (every day) performs a failover with the following
statements appearing the in log:

2017-02-15 13:16:01: pid 16190: WARNING: write on backend 1 failed with
error :"Success"
2017-02-15 13:16:01: pid 16190: DETAIL: while trying to write data from
offset: 0 wlen: 5

The source code (pool_stream.c:pool_flush_it()) seems to consider a write
of 0 bytes an error. Also the "Success" in the log statement indicates
that errno was not set.

There never appears to be any actual problem with the node.

Should pgpool trigger a failover in this situation?

Thanks,

Dave