<div dir="ltr">Hello everyone,<div><br></div><div>I am using Quickfixn for accessing LMAX.</div><div>I have a serious problem now.</div><div>During receiving the price updates from the server, logout/login repeats sometimes.</div><div>LMAX said like this.</div><div>///////////////////////////////////////////////////////</div><div><p class="MsoNormal">If your software gets overwhelmed it will return a TCP Window size=0, this means that you’re not able to receive further messages at the moment, and the TCP transmission is halted until it can process the messages in its receive buffer.</p><p class="MsoNormal">TCP back pressure will result when your software is unable to process the TCP packets fast enough (can't keep up) so messages start to back up on our side awaiting being sent. If your software gets overwhelmed it will return a TCP Window size = 0 which means that there is no room to send anything more at this time and messages queue up awaiting the next available window size.</p><p class="MsoNormal">We can try reducing the amount of updates we are sending to you (I can see your account is currently set as 1000 updates / sec with 20 levels depth market data) or you can reduce the number of instruments you are subscribing to. Please also contact you bridge provider to look at this issue.</p><p class="MsoNormal">//////////////////////////////////////////////////////////////</p><p class="MsoNormal">To solve this issue, I did the following steps.</p><p class="MsoNormal">-I upgraded VPS.</p><p class="MsoNormal">-I reduced the number of instruments to subscribe to.</p><p class="MsoNormal">-I commented on codes related to file writing.</p><p class="MsoNormal">However, this issue remains.</p><p class="MsoNormal">I have some errors in the FIX log file.</p><p class="MsoNormal">I am attaching it.</p><p class="MsoNormal">Can you help me now?</p><div><div><img>
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