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new 024a4f047ec [opt](variables) enlarge the default value of
max_allowed_packet (#38697)
024a4f047ec is described below
commit 024a4f047ec19a754292a57a81bb1b25677d5c3d
Author: Mingyu Chen <morning...@163.com>
AuthorDate: Fri Aug 2 19:11:56 2024 +0800
[opt](variables) enlarge the default value of max_allowed_packet (#38697)
From 1MB to 16MB, same as MySQL 8.4.
This is to avoid "Packet for query is too large" error
when querying wide table or table with wide column.
---
fe/fe-core/src/main/java/org/apache/doris/qe/SessionVariable.java | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fe/fe-core/src/main/java/org/apache/doris/qe/SessionVariable.java
b/fe/fe-core/src/main/java/org/apache/doris/qe/SessionVariable.java
index 51bfdb7ead8..e1fabc5a16a 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/qe/SessionVariable.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/qe/SessionVariable.java
@@ -813,7 +813,7 @@ public class SessionVariable implements Serializable,
Writable {
// this is used to make c3p0 library happy
@VariableMgr.VarAttr(name = MAX_ALLOWED_PACKET)
- public int maxAllowedPacket = 1048576;
+ public int maxAllowedPacket = 16777216;
@VariableMgr.VarAttr(name = AUTO_INCREMENT_INCREMENT)
public int autoIncrementIncrement = 1;
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