diff --git a/.github/workflows/spark-integration-tests.yml b/.github/workflows/spark-integration-tests.yml
index 365a7210d..2483f69b6 100644
--- a/.github/workflows/spark-integration-tests.yml
+++ b/.github/workflows/spark-integration-tests.yml
@@ -57,26 +57,26 @@ jobs:
         cd ../docker
         ls -la weed filer.toml entrypoint.sh
         file weed
-        echo "✓ SeaweedFS binary built"
+        echo "OK SeaweedFS binary built"
 
     - name: Build SeaweedFS Java dependencies
       run: |
         echo "Building Java client..."
         cd other/java/client
         mvn clean install -U -DskipTests -Dgpg.skip=true -Dcentral.publishing.skip=true
-        echo "✓ Java client built"
+        echo "OK Java client built"
         cd ../../..
         
         echo "Building HDFS2 client..."
         cd other/java/hdfs2
         mvn clean install -U -DskipTests -Dgpg.skip=true -Dcentral.publishing.skip=true
-        echo "✓ HDFS2 client built"
+        echo "OK HDFS2 client built"
         cd ../../..
         
         echo "Building HDFS3 client..."
         cd other/java/hdfs3
         mvn clean install -U -DskipTests -Dgpg.skip=true -Dcentral.publishing.skip=true
-        echo "✓ HDFS3 client built"
+        echo "OK HDFS3 client built"
         echo ""
         echo "All Java dependencies installed to ~/.m2/repository"
 
@@ -94,11 +94,11 @@ jobs:
         echo "Waiting for services..."
         for i in {1..30}; do
           if curl -f http://localhost:8888/ > /dev/null 2>&1; then
-            echo "✓ SeaweedFS filer is ready!"
+            echo "OK SeaweedFS filer is ready!"
             break
           fi
           if [ $i -eq 30 ]; then
-            echo "✗ Services failed to start"
+            echo "FAILED Services failed to start"
             docker compose ps -a
             docker compose logs
             exit 1
@@ -108,7 +108,7 @@ jobs:
         done
         
         curl -f http://localhost:9333/cluster/status || exit 1
-        echo "✓ All services healthy"
+        echo "OK All services healthy"
 
     - name: Prepare Maven repository for Docker
       working-directory: test/java/spark
@@ -116,7 +116,7 @@ jobs:
         echo "Copying Maven artifacts for Docker container..."
         mkdir -p .m2/repository/com
         cp -r ~/.m2/repository/com/seaweedfs .m2/repository/com/
-        echo "✓ Maven artifacts ready"
+        echo "OK Maven artifacts ready"
 
     - name: Run Spark integration tests
       working-directory: test/java/spark
@@ -140,7 +140,7 @@ jobs:
         echo "Waiting for filer to be ready..."
         for i in {1..10}; do
           if curl -f http://localhost:8888/ > /dev/null 2>&1; then
-            echo "✓ Filer is ready"
+            echo "OK Filer is ready"
             break
           fi
           sleep 2
@@ -175,7 +175,7 @@ jobs:
           curl -o test.parquet "http://localhost:8888/test-spark/employees/$PARQUET_FILE"
           
           if [ ! -f test.parquet ] || [ ! -s test.parquet ]; then
-            echo "⚠️  Failed to download via HTTP, trying direct volume access..."
+            echo "WARNING:  Failed to download via HTTP, trying direct volume access..."
             # Find the actual file ID from filer
             docker compose exec -T seaweedfs-filer weed filer.cat -dir=/test-spark/employees/ -name="$PARQUET_FILE" > test.parquet
           fi
@@ -212,18 +212,18 @@ jobs:
           echo ""
           echo "=== File appears to be: ==="
           if head -c 4 test.parquet | grep -q "PAR1"; then
-            echo "✓ Valid Parquet header"
+            echo "OK Valid Parquet header"
           else
-            echo "✗ INVALID Parquet header"
+            echo "FAILED INVALID Parquet header"
           fi
           
           if tail -c 4 test.parquet | grep -q "PAR1"; then
-            echo "✓ Valid Parquet trailer"
+            echo "OK Valid Parquet trailer"
           else
-            echo "✗ INVALID Parquet trailer"
+            echo "FAILED INVALID Parquet trailer"
           fi
         else
-          echo "❌ No Parquet files found via HTTP API"
+          echo "ERROR No Parquet files found via HTTP API"
           echo ""
           echo "Trying alternative: list files via docker exec..."
           docker compose exec -T seaweedfs-filer sh -c 'curl -s http://localhost:8888/test-spark/employees/' || echo "Docker exec failed"
@@ -270,7 +270,7 @@ SHELL_EOF
     - name: Check test results
       if: steps.test-run.outcome == 'failure'
       run: |
-        echo "❌ Tests failed with exit code: ${{ steps.test-run.outputs.exit_code }}"
+        echo "ERROR Tests failed with exit code: ${{ steps.test-run.outputs.exit_code }}"
         echo "But file analysis was completed above."
         exit 1
 
@@ -291,7 +291,7 @@ SHELL_EOF
         echo "Downloading Apache Spark 3.5.0..."
         wget -q https://archive.apache.org/dist/spark/spark-3.5.0/spark-3.5.0-bin-hadoop3.tgz
         tar xzf spark-3.5.0-bin-hadoop3.tgz
-        echo "✓ Spark downloaded"
+        echo "OK Spark downloaded"
 
     - name: Start SeaweedFS services for example
       if: github.event_name == 'push' || github.event_name == 'workflow_dispatch'
@@ -305,11 +305,11 @@ SHELL_EOF
         echo "Waiting for services..."
         for i in {1..30}; do
           if curl -f http://localhost:8888/ > /dev/null 2>&1; then
-            echo "✓ SeaweedFS filer is ready!"
+            echo "OK SeaweedFS filer is ready!"
             break
           fi
           if [ $i -eq 30 ]; then
-            echo "✗ Services failed to start"
+            echo "FAILED Services failed to start"
             docker compose ps -a
             docker compose logs
             exit 1
@@ -319,7 +319,7 @@ SHELL_EOF
         done
         
         curl -f http://localhost:9333/cluster/status || exit 1
-        echo "✓ All services healthy"
+        echo "OK All services healthy"
 
     - name: Build project for example
       if: github.event_name == 'push' || github.event_name == 'workflow_dispatch'
@@ -342,7 +342,7 @@ SHELL_EOF
           --conf spark.hadoop.fs.seaweed.replication="" \
           target/seaweedfs-spark-integration-tests-1.0-SNAPSHOT.jar \
           seaweedfs://localhost:8888/ci-spark-output
-        echo "✓ Example completed"
+        echo "OK Example completed"
 
     - name: Verify example output
       if: github.event_name == 'push' || github.event_name == 'workflow_dispatch'
diff --git a/other/java/client/src/main/java/seaweedfs/client/SeaweedOutputStream.java b/other/java/client/src/main/java/seaweedfs/client/SeaweedOutputStream.java
index 437282744..222e7d9dc 100644
--- a/other/java/client/src/main/java/seaweedfs/client/SeaweedOutputStream.java
+++ b/other/java/client/src/main/java/seaweedfs/client/SeaweedOutputStream.java
@@ -101,7 +101,7 @@ public class SeaweedOutputStream extends OutputStream {
         long currentPos = position + buffer.position();
         if (path.contains("parquet")) {
             LOG.info(
-                    "[DEBUG-2024] 📍 getPos() called: flushedPosition={} bufferPosition={} returning={} totalBytesWritten={} writeCalls={}",
+                    "[DEBUG-2024] getPos() called: flushedPosition={} bufferPosition={} returning={} totalBytesWritten={} writeCalls={}",
                     position, buffer.position(), currentPos, totalBytesWritten, writeCallCount);
         }
         return currentPos;
@@ -133,7 +133,7 @@ public class SeaweedOutputStream extends OutputStream {
 
     private synchronized void flushWrittenBytesToServiceInternal(final long offset) throws IOException {
         try {
-            LOG.info("[DEBUG-2024] ⚠️  flushWrittenBytesToServiceInternal: path={} offset={} #chunks={}",
+            LOG.info("[DEBUG-2024] flushWrittenBytesToServiceInternal: path={} offset={} #chunks={}",
                     path, offset, entry.getChunksCount());
 
             // Set the file size in attributes based on our position
@@ -142,7 +142,7 @@ public class SeaweedOutputStream extends OutputStream {
             attrBuilder.setFileSize(offset);
             entry.setAttributes(attrBuilder);
 
-            LOG.info("[DEBUG-2024] → Set entry.attributes.fileSize = {} bytes before writeMeta", offset);
+            LOG.info("[DEBUG-2024] Set entry.attributes.fileSize = {} bytes before writeMeta", offset);
 
             SeaweedWrite.writeMeta(filerClient, getParentDirectory(path), entry);
         } catch (Exception ex) {
@@ -175,13 +175,13 @@ public class SeaweedOutputStream extends OutputStream {
         if (path.contains("parquet")) {
             if (length >= 20) {
                 LOG.info(
-                        "[DEBUG-2024] ✍️ write({} bytes): totalSoFar={} writeCalls={} position={} bufferPos={}, file={}",
+                        "[DEBUG-2024] write({} bytes): totalSoFar={} writeCalls={} position={} bufferPos={}, file={}",
                         length, totalBytesWritten, writeCallCount, position, buffer.position(),
                         path.substring(path.lastIndexOf('/') + 1));
             } else if (writeCallCount >= 220) {
                 // Log all small writes after call 220 (likely footer writes)
                 LOG.info(
-                        "[DEBUG-2024] ✍️ write({} bytes): totalSoFar={} writeCalls={} position={} bufferPos={} [FOOTER?], file={}",
+                        "[DEBUG-2024] write({} bytes): totalSoFar={} writeCalls={} position={} bufferPos={} [FOOTER?], file={}",
                         length, totalBytesWritten, writeCallCount, position, buffer.position(),
                         path.substring(path.lastIndexOf('/') + 1));
             }
@@ -241,13 +241,13 @@ public class SeaweedOutputStream extends OutputStream {
 
         int bufferPosBeforeFlush = buffer.position();
         LOG.info(
-                "[DEBUG-2024] 🔒 close START: path={} position={} buffer.position()={} totalBytesWritten={} writeCalls={}",
+                "[DEBUG-2024] close START: path={} position={} buffer.position()={} totalBytesWritten={} writeCalls={}",
                 path, position, bufferPosBeforeFlush, totalBytesWritten, writeCallCount);
         try {
             flushInternal();
             threadExecutor.shutdown();
             LOG.info(
-                    "[DEBUG-2024] ✅ close END: path={} finalPosition={} totalBytesWritten={} writeCalls={} (buffer had {} bytes)",
+                    "[DEBUG-2024] close END: path={} finalPosition={} totalBytesWritten={} writeCalls={} (buffer had {} bytes)",
                     path, position, totalBytesWritten, writeCallCount, bufferPosBeforeFlush);
         } finally {
             lastError = new IOException("Stream is closed!");
@@ -267,13 +267,13 @@ public class SeaweedOutputStream extends OutputStream {
         LOG.info("[DEBUG-2024] writeCurrentBufferToService: path={} buffer.position()={} totalPosition={}", path,
                 bufferPos, position);
         if (bufferPos == 0) {
-            LOG.info("  → Skipping write, buffer is empty");
+            LOG.info("  Skipping write, buffer is empty");
             return;
         }
 
         int written = submitWriteBufferToService(buffer, position);
         position += written;
-        LOG.info("  → Submitted {} bytes for write, new position={}", written, position);
+        LOG.info("  Submitted {} bytes for write, new position={}", written, position);
 
         buffer = ByteBufferPool.request(bufferSize);
 
diff --git a/other/java/client/src/main/java/seaweedfs/client/SeaweedWrite.java b/other/java/client/src/main/java/seaweedfs/client/SeaweedWrite.java
index 2f62827cd..8e8520b53 100644
--- a/other/java/client/src/main/java/seaweedfs/client/SeaweedWrite.java
+++ b/other/java/client/src/main/java/seaweedfs/client/SeaweedWrite.java
@@ -125,7 +125,7 @@ public class SeaweedWrite {
 
         String etag = multipartUpload(targetUrl, auth, bytes, bytesOffset, bytesLength, cipherKey);
 
-        LOG.info("[DEBUG-2024] ✓ Wrote chunk to {} at offset {} size {} bytes, etag: {}", targetUrl, offset,
+        LOG.info("[DEBUG-2024] Wrote chunk to {} at offset {} size {} bytes, etag: {}", targetUrl, offset,
                 bytesLength, etag);
 
         return FilerProto.FileChunk.newBuilder()
@@ -152,12 +152,12 @@ public class SeaweedWrite {
             // Check if there's a size mismatch with attributes
             long attrFileSize = entry.getAttributes().getFileSize();
             LOG.info(
-                    "[DEBUG-2024] ✓ Writing metadata to {} with {} chunks, totalSize from chunks: {} bytes, attr.fileSize: {} bytes{}",
+                    "[DEBUG-2024] Writing metadata to {} with {} chunks, totalSize from chunks: {} bytes, attr.fileSize: {} bytes{}",
                     parentDirectory + "/" + entry.getName(),
                     chunks.size(),
                     totalSize,
                     attrFileSize,
-                    (totalSize != attrFileSize) ? " ⚠️ MISMATCH!" : "");
+                    (totalSize != attrFileSize) ? " MISMATCH!" : "");
 
             entry.clearChunks();
             entry.addAllChunks(chunks);
diff --git a/other/java/hdfs3/src/main/java/seaweed/hdfs/SeaweedHadoopOutputStream.java b/other/java/hdfs3/src/main/java/seaweed/hdfs/SeaweedHadoopOutputStream.java
index 672184b04..414d520ab 100644
--- a/other/java/hdfs3/src/main/java/seaweed/hdfs/SeaweedHadoopOutputStream.java
+++ b/other/java/hdfs3/src/main/java/seaweed/hdfs/SeaweedHadoopOutputStream.java
@@ -20,7 +20,7 @@ public class SeaweedHadoopOutputStream extends SeaweedOutputStream implements Sy
     public SeaweedHadoopOutputStream(FilerClient filerClient, final String path, FilerProto.Entry.Builder entry,
                                      final long position, final int bufferSize, final String replication) {
         super(filerClient, path, entry, position, bufferSize, replication);
-        LOG.info("[DEBUG-2024] 🔧 SeaweedHadoopOutputStream created: path={} position={} bufferSize={} replication={}", 
+        LOG.info("[DEBUG-2024] SeaweedHadoopOutputStream created: path={} position={} bufferSize={} replication={}", 
                 path, position, bufferSize, replication);
     }