No longer raise if logging raises #86
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fishcakez
commented
Jul 3, 2017
| catch | ||
| kind, reason -> | ||
| stack = System.stacktrace() | ||
| {kind, reason, stack, meter} |
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Now long poolboy time outs
| meter = event(meter, :checkout) | ||
| with {:ok, conn, conn_info, meter} <- checkout(pool, meter, opts) do | ||
| try do | ||
| fun.(conn, conn_info, arg, meter, opts) |
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All "connection time" runs inside this fun (or similar, above/below), which could be instrumented using fun based instrumentation.
| end | ||
| defp run_begin(conn, conn_info, meter, opts) do | ||
| meter = event(meter, :begin) | ||
| handle_trans(conn, conn_info, :handle_begin, meter, opts, :transaction) |
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Transaction calls aren't wrapped in run calls with funs but could be as parameters align.
| defp event(nil, _), | ||
| do: nil | ||
| defp event({log, events}, event), | ||
| do: {log, [{event, :erlang.monotonic_time()} | events]} |
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simple stack based/pure implementation so could wrap any stateful instrumenter
josevalim
approved these changes
Jul 4, 2017
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First commit changes the behaviour and the second commit does a substantial refactor to help with #82 and any future metrics work. Hopefully this will pave the way for future integration with any standard instrumentation lib. This PR uses a stateful approach because it fits well with multiple timestampings. However all "connection_time" work is carried out inside a closure except begin/commit/rollback.