From d1659c1866e0128cc4d0d3aaefcc65c6800f082f Mon Sep 17 00:00:00 2001
From: jianliu <397029583@qq.com>
Date: Sun, 23 Mar 2025 23:31:36 +0800
Subject: [PATCH] =?UTF-8?q?grpc=20connection=E6=B7=BB=E5=8A=A0keep-alive?=
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---
 .../polaris/plugins/connector/grpc/ConnectionManager.java       | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/polaris-plugins/polaris-plugins-connector/connector-polaris-grpc/src/main/java/com/tencent/polaris/plugins/connector/grpc/ConnectionManager.java b/polaris-plugins/polaris-plugins-connector/connector-polaris-grpc/src/main/java/com/tencent/polaris/plugins/connector/grpc/ConnectionManager.java
index afe796d2c..3b9b1282a 100644
--- a/polaris-plugins/polaris-plugins-connector/connector-polaris-grpc/src/main/java/com/tencent/polaris/plugins/connector/grpc/ConnectionManager.java
+++ b/polaris-plugins/polaris-plugins-connector/connector-polaris-grpc/src/main/java/com/tencent/polaris/plugins/connector/grpc/ConnectionManager.java
@@ -470,6 +470,8 @@ private Instance getDiscoverInstance(Extensions extensions) throws PolarisExcept
         private Connection connectTarget(ConnID connID) throws PolarisException {
             try {
                 ManagedChannelBuilder<?> builder = ManagedChannelBuilder.forAddress(connID.getHost(), connID.getPort())
+                        .keepAliveTime(2, TimeUnit.MINUTES)
+                        .keepAliveWithoutCalls(true)
                         .usePlaintext();
                 if (tlsCertificates != null) {
                     ManagedChannelUtil.setChannelTls(builder, tlsCertificates);