(apisix) branch master updated: fix: add exptime to ewma shared dict items (#12557)

[nic443]

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nic443 pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/apisix.git


The following commit(s) were added to refs/heads/master by this push:
     new 9ae24032b fix: add exptime to ewma shared dict items (#12557)
9ae24032b is described below

commit 9ae24032b6177daa6dfd31de04bfedc435a842d5
Author: Nic <qiany...@api7.ai>
AuthorDate: Mon Sep 1 11:31:28 2025 +0800

    fix: add exptime to ewma shared dict items (#12557)
    
    Signed-off-by: Nic <qiany...@api7.ai>
---
 apisix/balancer/ewma.lua | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/apisix/balancer/ewma.lua b/apisix/balancer/ewma.lua
index c533a01c6..0834397b9 100644
--- a/apisix/balancer/ewma.lua
+++ b/apisix/balancer/ewma.lua
@@ -18,6 +18,7 @@ local next = next
 local error = error
 
 local DECAY_TIME = 10 -- this value is in seconds
+local SHM_TTL = 60
 local LOCK_KEY = ":ewma_key"
 
 local shm_ewma = ngx_shared["balancer-ewma"]
@@ -58,7 +59,7 @@ local function decay_ewma(ewma, last_touched_at, rtt, now)
 end
 
 local function store_stats(upstream, ewma, now)
-    local success, err, forcible = shm_last_touched_at:set(upstream, now)
+    local success, err, forcible = shm_last_touched_at:set(upstream, now, 
SHM_TTL)
     if not success then
         core.log.error("shm_last_touched_at:set failed: ", err)
     end
@@ -66,7 +67,7 @@ local function store_stats(upstream, ewma, now)
         core.log.warn("shm_last_touched_at:set valid items forcibly 
overwritten")
     end
 
-    success, err, forcible = shm_ewma:set(upstream, ewma)
+    success, err, forcible = shm_ewma:set(upstream, ewma, SHM_TTL)
     if not success then
         core.log.error("shm_ewma:set failed: ", err)
     end