[Performance](exec) opt the exchange performance (#29579)

2024-01-09 19:19:44 +08:00
parent 48f58510a8
commit 463a7ab212
13 changed files with 372 additions and 152 deletions
--- 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
@ -700,7 +700,7 @@ public class SessionVariable implements Serializable, Writable {
    public String preferJoinMethod = "broadcast";

    @VariableMgr.VarAttr(name = FRAGMENT_TRANSMISSION_COMPRESSION_CODEC)
-    public String fragmentTransmissionCompressionCodec = "lz4";
+    public String fragmentTransmissionCompressionCodec = "none";

    /*
     * the parallel exec instance num for one Fragment in one BE