<div dir="ltr"><p style="box-sizing:border-box;margin-bottom:16px;color:rgb(36,41,46);font-family:-apple-system,system-ui,"Segoe UI",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:14px;margin-top:0px">All,<br style="box-sizing:border-box">I ame experiencing the following error when calling a transaction in poolboy as per the README:</p><div class="gmail-highlight gmail-highlight-source-erlang" style="box-sizing:border-box;margin-bottom:16px;color:rgb(36,41,46);font-family:-apple-system,system-ui,"Segoe UI",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:14px;overflow:visible"><pre style="box-sizing:border-box;font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:11.9px;margin-top:0px;margin-bottom:0px;padding:16px;overflow:auto;line-height:1.45;background-color:rgb(246,248,250);border-radius:3px;word-break:normal"><span class="gmail-pl-en" style="box-sizing:border-box;color:rgb(111,66,193)">equery</span>(<span class="gmail-pl-smi" style="box-sizing:border-box">PoolName</span>, <span class="gmail-pl-smi" style="box-sizing:border-box">Stmt</span>, <span class="gmail-pl-smi" style="box-sizing:border-box">Params</span>) <span class="gmail-pl-k" style="box-sizing:border-box;color:rgb(215,58,73)">-></span>
<span class="gmail-pl-en" style="box-sizing:border-box;color:rgb(111,66,193)">poolboy</span>:<span class="gmail-pl-en" style="box-sizing:border-box;color:rgb(111,66,193)">transaction</span>(<span class="gmail-pl-smi" style="box-sizing:border-box">PoolName</span>, <span class="gmail-pl-k" style="box-sizing:border-box;color:rgb(215,58,73)">fun</span>(<span class="gmail-pl-smi" style="box-sizing:border-box">Worker</span>) ->
<span class="gmail-pl-en" style="box-sizing:border-box;color:rgb(111,66,193)">gen_server</span>:<span class="gmail-pl-en" style="box-sizing:border-box;color:rgb(111,66,193)">call</span>(<span class="gmail-pl-smi" style="box-sizing:border-box">Worker</span>, {<span class="gmail-pl-c1" style="box-sizing:border-box;color:rgb(0,92,197)">equery</span>, <span class="gmail-pl-smi" style="box-sizing:border-box">Stmt</span>, <span class="gmail-pl-smi" style="box-sizing:border-box">Params</span>})
<span class="gmail-pl-k" style="box-sizing:border-box;color:rgb(215,58,73)">end</span>).</pre></div><pre style="box-sizing:border-box;font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:11.9px;margin-top:0px;margin-bottom:16px;padding:16px;overflow:auto;line-height:1.45;background-color:rgb(246,248,250);border-radius:3px;color:rgb(36,41,46)"><code style="box-sizing:border-box;font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:11.9px;padding:0px;margin:0px;background:initial;border-radius:3px;word-break:normal;border:0px;display:inline;overflow:visible;line-height:inherit">** exception exit: {timeout,{gen_server,call,
[keys_db,{checkout,#Ref<0.0.1.156295>,true},5000]}}
in function gen_server:call/3 (gen_server.erl, line 212)
in call from poolboy:checkout/3 (/home/ubuntu/workspace/myapp/_build/default/lib/poolboy/src/poolboy.erl, line 55)
in call from poolboy:transaction/3 (/home/ubuntu/workspace/myapp/_build/default/lib/poolboy/src/poolboy.erl, line 74)
</code></pre><p style="box-sizing:border-box;margin-top:0px;margin-bottom:16px;color:rgb(36,41,46);font-family:-apple-system,system-ui,"Segoe UI",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:14px">The process queue keeps on increasing, and I can see the following:</p><pre style="box-sizing:border-box;font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:11.9px;margin-top:0px;margin-bottom:16px;padding:16px;overflow:auto;line-height:1.45;background-color:rgb(246,248,250);border-radius:3px;color:rgb(36,41,46)"><code style="box-sizing:border-box;font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:11.9px;padding:0px;margin:0px;background:initial;border-radius:3px;word-break:normal;border:0px;display:inline;overflow:visible;line-height:inherit">3> erlang:process_info(whereis(keys_db)).
[{registered_name,keys_db},
{current_function,{gen,do_call,4}},
{initial_call,{proc_lib,init_p,5}},
{status,waiting},
{message_queue_len,11906},
{messages,[{'$gen_cast',{cancel_waiting,#Ref<0.0.1.138090>}},
{'$gen_call',{<0.15224.0>,#Ref<0.0.1.139621>},
{checkout,#Ref<0.0.1.139620>,true}},
{'$gen_call',{<0.15139.0>,#Ref<0.0.1.139649>},
{checkout,#Ref<0.0.1.139648>,true}},
{'$gen_cast',{cancel_waiting,#Ref<0.0.1.138159>}},
{'$gen_cast',{cancel_waiting,#Ref<0.0.1.138175>}},
{'$gen_cast',{cancel_waiting,#Ref<0.0.1.138232>}},
{'$gen_cast',{cancel_waiting,#Ref<0.0.1.138252>}},
{'$gen_cast',{cancel_waiting,#Ref<0.0.1.138261>}},
{'$gen_cast',{cancel_waiting,#Ref<0.0.1.138286>}},
{'$gen_call',{<0.15235.0>,#Ref<0.0.1.139774>},
{checkout,#Ref<0.0.1.139773>,true}},
{'$gen_cast',{cancel_waiting,#Ref<0.0.2.77777>}},
{'$gen_cast',{cancel_waiting,#Ref<0.0.1.138318>}},
{'$gen_cast',{cancel_waiting,#Ref<0.0.1.138336>}},
{'$gen_call',{<0.15233.0>,#Ref<0.0.1.139816>},
{checkout,#Ref<0.0.1.139815>,true}},
{'$gen_call',{<0.15245.0>,#Ref<0.0.1.139854>},
{checkout,#Ref<0.0.1.139853>,true}},
{'$gen_call',{<0.15237.0>,#Ref<0.0.2.78173>},
{checkout,#Ref<0.0.2.78172>,...}},
{'$gen_cast',{cancel_waiting,#Ref<0.0.1.138407>}},
{'$gen_call',{<0.15228.0>,...},{...}},
{'$gen_call',{...},...},
{'$gen_call',...},
{...}|...]},
{links,[<0.714.1>,<0.817.1>,<0.947.1>,<0.1015.1>,<0.1045.1>,
<0.1048.1>,<0.1038.1>,<0.983.1>,<0.1002.1>,<0.962.1>,
<0.877.1>,<0.909.1>,<0.938.1>,<0.892.1>,<0.849.1>,<0.866.1>,
<0.832.1>,<0.765.1>,<0.789.1>,<0.804.1>|...]},
{dictionary,[{'$initial_call',{poolboy,init,1}},
{'$ancestors',[pgpool_sup,<0.673.0>]}]},
{trap_exit,true},
{error_handler,error_handler},
{priority,normal},
{group_leader,<0.672.0>},
{total_heap_size,393326},
{heap_size,196650},
{stack_size,33},
{reductions,14837255},
{garbage_collection,[{max_heap_size,#{error_logger => true,
kill => true,
size => 0}},
{min_bin_vheap_size,46422},
{min_heap_size,233},
{fullsweep_after,10},
{minor_gcs,3}]},
{suspending,[]}]
</code></pre><p style="box-sizing:border-box;margin-top:0px;margin-bottom:16px;color:rgb(36,41,46);font-family:-apple-system,system-ui,"Segoe UI",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:14px">Does someone have an insight of what may be going wrong? I see that the process status is <code style="box-sizing:border-box;font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:11.9px;padding:0.2em 0.4em;margin:0px;background-color:rgba(27,31,35,0.05);border-radius:3px">waiting</code>...</p><p style="box-sizing:border-box;margin-top:0px;color:rgb(36,41,46);font-family:-apple-system,system-ui,"Segoe UI",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:14px;margin-bottom:0px">Thank you,<br style="box-sizing:border-box">r.</p></div>