https://bz.apache.org/bugzilla/show_bug.cgi?id=69750
Bug ID: 69750
Summary: New sessions are being routed disproportionately to
certain workers.
Product: Apache httpd-2
Version: 2.4.62
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P2
Component: mod_lbmethod_(bybusyness|byrequests|bytraffic|heartbea
t|rr)
Assignee: bugs@httpd.apache.org
Reporter: tokunou.yut...@fujitsu.com
Target Milestone: ---
With mod_lbmethod_bybusyness, session usage can cause requests to concentrate
on a single worker. As this happens, that worker's lbstatus continuously
decreases, while the lbstatus of other workers continuously increases.
Subsequently, even after a period of inactivity and no load, new sessions are
still routed to the other workers, creating a load imbalance.
In other words, the imbalance is caused by the past load situation.
Furthermore, the longer the session duration, the longer the imbalance
persists.
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