diff --git a/ci/workflows/main-cron.yml b/ci/workflows/main-cron.yml
index d5da5b14ae65b..a0e05a2b43f3d 100644
--- a/ci/workflows/main-cron.yml
+++ b/ci/workflows/main-cron.yml
@@ -99,7 +99,7 @@ steps:
           config: ci/docker-compose.yml
           mount-buildkite-agent: true
       - ./ci/plugins/upload-failure-logs
-    timeout_in_minutes: 10
+    timeout_in_minutes: 12
     retry: *auto-retry
 
   - label: "end-to-end source test (release)"
@@ -245,25 +245,6 @@ steps:
     timeout_in_minutes: 5
     retry: *auto-retry
 
-  - label: "connector node integration test Java {{matrix.java_version}}"
-    command: "ci/scripts/connector-node-integration-test.sh -p ci-release -v {{matrix.java_version}}"
-    depends_on:
-      - "build"
-      - "build-other"
-    plugins:
-      - docker-compose#v4.9.0:
-          run: rw-build-env
-          config: ci/docker-compose.yml
-          mount-buildkite-agent: true
-      - ./ci/plugins/upload-failure-logs
-    matrix:
-      setup:
-        java_version:
-          - "11"
-          - "17"
-    timeout_in_minutes: 10
-    retry: *auto-retry
-
   - label: "end-to-end iceberg sink test (release)"
     command: "ci/scripts/e2e-iceberg-sink-test.sh -p ci-release"
     depends_on:
@@ -289,7 +270,7 @@ steps:
           config: ci/docker-compose.yml
           mount-buildkite-agent: true
       - ./ci/plugins/upload-failure-logs
-    timeout_in_minutes: 5
+    timeout_in_minutes: 10
     retry: *auto-retry
 
   - label: "e2e java-binding test (release)"
@@ -308,23 +289,6 @@ steps:
     timeout_in_minutes: 10
     retry: *auto-retry
 
-  - label: "S3 source check on AWS (json parser)"
-    command: "ci/scripts/s3-source-test.sh -p ci-release -s run"
-    depends_on: build
-    plugins:
-      - seek-oss/aws-sm#v2.3.1:
-          env:
-            S3_SOURCE_TEST_CONF: ci_s3_source_test_aws
-      - docker-compose#v4.9.0:
-          run: rw-build-env
-          config: ci/docker-compose.yml
-          mount-buildkite-agent: true
-          environment:
-            - S3_SOURCE_TEST_CONF
-      - ./ci/plugins/upload-failure-logs
-    timeout_in_minutes: 20
-    retry: *auto-retry
-
   - label: "S3 source check on AWS (json parser)"
     command: "ci/scripts/s3-source-test.sh -p ci-release -s json_file"
     depends_on: build
@@ -478,7 +442,7 @@ steps:
           config: ci/docker-compose.yml
           mount-buildkite-agent: true
       - ./ci/plugins/upload-failure-logs
-    timeout_in_minutes: 21
+    timeout_in_minutes: 25
     retry: *auto-retry
 
   - label: "end-to-end test for opendal (parallel)"
@@ -495,46 +459,6 @@ steps:
     timeout_in_minutes: 14
     retry: *auto-retry
 
-  - label: "end-to-end test (parallel, in-memory)"
-    command: "ci/scripts/e2e-test-parallel-in-memory.sh -p ci-release"
-    depends_on: "build"
-    plugins:
-      - docker-compose#v4.9.0:
-          run: rw-build-env
-          config: ci/docker-compose.yml
-          mount-buildkite-agent: true
-      - ./ci/plugins/upload-failure-logs
-    timeout_in_minutes: 12
-    retry: *auto-retry
-
-  - label: "end-to-end iceberg sink test"
-    command: "ci/scripts/e2e-iceberg-sink-test.sh -p ci-release"
-    depends_on:
-      - "build"
-      - "build-other"
-    plugins:
-      - docker-compose#v4.9.0:
-          run: rw-build-env
-          config: ci/docker-compose.yml
-          mount-buildkite-agent: true
-      - ./ci/plugins/upload-failure-logs
-    timeout_in_minutes: 5
-    retry: *auto-retry
-
-  - label: "end-to-end iceberg sink v2 test"
-    command: "ci/scripts/e2e-iceberg-sink-v2-test.sh -p ci-release"
-    depends_on:
-      - "build"
-      - "build-other"
-    plugins:
-      - docker-compose#v4.9.0:
-          run: sink-test-env
-          config: ci/docker-compose.yml
-          mount-buildkite-agent: true
-      - ./ci/plugins/upload-failure-logs
-    timeout_in_minutes: 10
-    retry: *auto-retry
-
   - label: "end-to-end clickhouse sink test"
     command: "ci/scripts/e2e-clickhouse-sink-test.sh -p ci-release"
     depends_on:
@@ -563,20 +487,6 @@ steps:
     timeout_in_minutes: 10
     retry: *auto-retry
 
-  - label: "e2e java-binding test"
-    command: "ci/scripts/java-binding-test.sh -p ci-release"
-    depends_on:
-      - "build"
-      - "build-other"
-    plugins:
-      - docker-compose#v4.9.0:
-          run: rw-build-env
-          config: ci/docker-compose.yml
-          mount-buildkite-agent: true
-      - ./ci/plugins/upload-failure-logs
-    timeout_in_minutes: 10
-    retry: *auto-retry
-
   - label: "connector node integration test Java {{matrix.java_version}}"
     command: "ci/scripts/connector-node-integration-test.sh -p ci-release -v {{matrix.java_version}}"
     depends_on: