[Enhancement] update staros to v4.2-rc2

Bump staros to v4.2-rc2 and the bundled C++ protobuf to 3.16.1 to match.

Signed-off-by: starrocks-xupeng <xupeng@starrocks.com>

Author: starrocks-xupeng

docker/dockerfiles/dev-env/dev-env.Dockerfile

@@ -22,7 +22,7 @@ ARG predownload_thirdparty=false
 ARG thirdparty_url=https://cdn-thirdparty.starrocks.com/starrocks-thirdparty-main-20260526.tar
 ARG commit_id
 # check thirdparty/starlet-artifacts-version.sh, to get the right tag
-ARG starlet_tag=v4.2-rc1
+ARG starlet_tag=v4.2-rc2
 # build for which linux distro: centos7|ubuntu
 ARG distro=ubuntu
 # Token to access artifacts in private github repositories.

docs/en/developers/mac-compile-run-test.md

@@ -387,13 +387,13 @@ The macOS compilation implementation follows these principles:
 
 **Q: Getting "protobuf version mismatch" error during compilation**
 
-A: Make sure the BE CMake build is using `thirdparty/installed/bin/protoc` (version 3.14.0) instead of system or Homebrew's protobuf:
+A: Make sure the BE CMake build is using `thirdparty/installed/bin/protoc` (version 3.16.1) instead of system or Homebrew's protobuf:
 
 ```bash
 # Check protobuf version
 /Users/kks/git/starrocks/thirdparty/installed/bin/protoc --version
 
-# Should output: libprotoc 3.14.0
+# Should output: libprotoc 3.16.1
 ```
 
 **Q: Out of memory during compilation**

docs/zh/developers/mac-compile-run-test.md

@@ -387,13 +387,13 @@ macOS 版本编译的实现遵循以下原则：
 
 **Q: 编译时报错 "protobuf version mismatch"**
 
-A: 确保 BE 的 CMake 构建使用 `thirdparty/installed/bin/protoc` (版本 3.14.0)，而不是系统或 Homebrew 的 protobuf：
+A: 确保 BE 的 CMake 构建使用 `thirdparty/installed/bin/protoc` (版本 3.16.1)，而不是系统或 Homebrew 的 protobuf：
 
 ```bash
 # 检查 protobuf 版本
 /Users/kks/git/starrocks/thirdparty/installed/bin/protoc --version
 
-# 应该输出：libprotoc 3.14.0
+# 应该输出：libprotoc 3.16.1
 ```
 
 **Q: 编译时内存不足**

fe/pom.xml

@@ -81,7 +81,7 @@ under the License.
         <paimon.version>1.3.1</paimon.version>
         <delta-kernel.version>4.0.0rc1</delta-kernel.version>
         <iceberg.version>1.10.0</iceberg.version>
-        <staros.version>4.2-rc1</staros.version>
+        <staros.version>4.2-rc2</staros.version>
         <!-- hadoop-azure requires no more than jetty10+ -->
         <!-- https://stackoverflow.com/questions/66713254/spark-wasb-and-jetty-11 -->
         <jetty.version>9.4.58.v20250814</jetty.version>

nix/thirdparty-archives.nix

@@ -269,10 +269,10 @@ let
       md5 = "282e54a68911f516b15d07136c78592b";
       sha256 = "19hprnr6c87490m8531vl9ygnhzbkw7whz1yy1lk09njzjq8xccj";
     };
-    "protobuf-3.14.0.tar.gz" = {
-      url = "https://github.com/google/protobuf/archive/v3.14.0.tar.gz";
-      md5 = "0c9d2a96f3656ba7ef3b23b533fb6170";
-      sha256 = "04v1q7g6kx9nwm1fs8dix27iszh3ycnsidf8wry00mnns02zdxfh";
+    "protobuf-3.16.1.tar.gz" = {
+      url = "https://github.com/google/protobuf/archive/v3.16.1.tar.gz";
+      md5 = "6294f01dedea72a76b9e113369f55097";
+      sha256 = "0zsxh0lxcn874rmhjzcqqx1bhqpnxalvh2yscsgr9x1d1fq5i4gv";
     };
     "pulsar-client-3.3.0.tar.gz" = {
       url = "https://github.com/apache/pulsar-client-cpp/archive/refs/tags/v3.3.0.tar.gz";
@@ -464,7 +464,7 @@ let
       "libevent-24236aed01798303745470e6c498bf606e88724a.zip"
       "openssl-OpenSSL_1_1_1m.tar.gz"
       "thrift-0.23.0.tar.gz"
-      "protobuf-3.14.0.tar.gz"
+      "protobuf-3.16.1.tar.gz"
       "gflags-2.2.2.tar.gz"
       "glog-0.7.1.tar.gz"
       "googletest-release-1.10.0.tar.gz"
@@ -535,7 +535,7 @@ let
       "libevent-24236aed01798303745470e6c498bf606e88724a.zip"
       "openssl-OpenSSL_1_1_1m.tar.gz"
       "thrift-0.23.0.tar.gz"
-      "protobuf-3.14.0.tar.gz"
+      "protobuf-3.16.1.tar.gz"
       "gflags-2.2.2.tar.gz"
       "glog-0.7.1.tar.gz"
       "googletest-release-1.10.0.tar.gz"
@@ -604,7 +604,7 @@ let
       "libevent-24236aed01798303745470e6c498bf606e88724a.zip"
       "openssl-OpenSSL_1_1_1m.tar.gz"
       "thrift-0.23.0.tar.gz"
-      "protobuf-3.14.0.tar.gz"
+      "protobuf-3.16.1.tar.gz"
       "gflags-2.2.2.tar.gz"
       "glog-0.7.1.tar.gz"
       "googletest-release-1.10.0.tar.gz"

thirdparty/starlet-artifacts-version.sh

@@ -9,4 +9,4 @@
 #   https://hub.docker.com/r/starrocks/starlet-artifacts-centos7/tags
 #
 # Update the following tag when STARLET releases a new version.
-export STARLET_ARTIFACTS_TAG=v4.2-rc1
+export STARLET_ARTIFACTS_TAG=v4.2-rc2

thirdparty/vars-aarch64.sh

@@ -51,10 +51,10 @@ TENANN_MD5SUM="b48f21ada7aeb153245a8c8a25a534d9"
 #TENANN_MD5SUM="11b35d1d7aea0c48ba6d7c60633a7348"
 
 # starcache
-STARCACHE_DOWNLOAD="https://cdn-thirdparty.starrocks.com/starcache/v4.2-rc1/starcache-centos7_arm64.tar.gz"
+STARCACHE_DOWNLOAD="https://cdn-thirdparty.starrocks.com/starcache/v4.2-rc2/starcache-centos7_arm64.tar.gz"
 STARCACHE_NAME="starcache.tar.gz"
 STARCACHE_SOURCE="starcache"
-STARCACHE_MD5SUM="901cbd54823c73588a6f43e4d3b32e44"
+STARCACHE_MD5SUM="3cfef8be7a06a71108174599eac6a9c9"
 
 # pprof
 PPROF_DOWNLOAD="https://github.com/StarRocks/pprof/releases/download/release%2F20260610/pprof-linux-arm64"

thirdparty/vars-ubuntu22-aarch64.sh

@@ -22,7 +22,7 @@
 #####################################################
 
 # starcache
-STARCACHE_DOWNLOAD="https://cdn-thirdparty.starrocks.com/starcache/v4.2-rc1/starcache-ubuntu22_arm64.tar.gz"
+STARCACHE_DOWNLOAD="https://cdn-thirdparty.starrocks.com/starcache/v4.2-rc2/starcache-ubuntu22_arm64.tar.gz"
 STARCACHE_NAME="starcache.tar.gz"
 STARCACHE_SOURCE="starcache"
-STARCACHE_MD5SUM="9ad0c4f45e931459d9699a6f25e6019a"
+STARCACHE_MD5SUM="78f2030bfd5772a700d731ff864279a2"

thirdparty/vars-ubuntu22-x86_64.sh

@@ -28,7 +28,7 @@ JINDOSDK_SOURCE="jindosdk-4.6.8-linux-ubuntu22-x86_64"
 JINDOSDK_MD5SUM="52236053391091591c2d09684791e810"
 
 # starcache
-STARCACHE_DOWNLOAD="https://cdn-thirdparty.starrocks.com/starcache/v4.2-rc1/starcache-ubuntu22_amd64.tar.gz"
+STARCACHE_DOWNLOAD="https://cdn-thirdparty.starrocks.com/starcache/v4.2-rc2/starcache-ubuntu22_amd64.tar.gz"
 STARCACHE_NAME="starcache.tar.gz"
 STARCACHE_SOURCE="starcache"
-STARCACHE_MD5SUM="e0f776ad3b33545b6d5754e3e2d915cc"
+STARCACHE_MD5SUM="b3dcf073ac1869fb0851cb5c83e2cbcc"

thirdparty/vars-x86_64.sh

@@ -46,10 +46,10 @@ TENANN_SOURCE="tenann-v0.5.1-rc1"
 TENANN_MD5SUM="a1b3c1507797ad9ae02f9690a1387cfc"
 
 # starcache
-STARCACHE_DOWNLOAD="https://cdn-thirdparty.starrocks.com/starcache/v4.2-rc1/starcache-centos7_amd64.tar.gz"
+STARCACHE_DOWNLOAD="https://cdn-thirdparty.starrocks.com/starcache/v4.2-rc2/starcache-centos7_amd64.tar.gz"
 STARCACHE_NAME="starcache.tar.gz"
 STARCACHE_SOURCE="starcache"
-STARCACHE_MD5SUM="23b115d131c8c7738c9a57c41d7b791f"
+STARCACHE_MD5SUM="4f75bfdaf4956ea7433822bf51eb7a08"
 
 # pprof
 PPROF_DOWNLOAD="https://github.com/StarRocks/pprof/releases/download/release%2F20260610/pprof-linux-amd64"