# Cursor Chat: ai-agent-book

## Metadata
- **Project**: ai-agent-book
- **Path**: `/Users/boj`
- **Date**: 2025-10-04 11:39:49
- **Session ID**: `7748e49d-602b-429d-816f-d7e926284c50`

## Conversation

### 👤 You

(base) root@C.26392409:~/SFTvsRL$ gcsfuse boj /mnt/gcs
{"timestamp":{"seconds":1759549130,"nanos":250092202},"severity":"INFO","message":"Start gcsfuse/3.4.0 (Go version go1.24.5) for app \"\" using mount point: /mnt/gcs\n"}
{"timestamp":{"seconds":1759549130,"nanos":250154513},"severity":"INFO","message":"GCSFuse config","config":{"AppName":"","CacheDir":"","CloudProfiler":{"AllocatedHeap":true,"Cpu":true,"Enabled":false,"Goroutines":false,"Heap":true,"Label":"gcsfuse-0.0.0","Mutex":false},"Debug":{"ExitOnInvariantViolation":false,"Fuse":false,"Gcs":false,"LogMutex":false},"DisableAutoconfig":false,"EnableAtomicRenameObject":true,"EnableGoogleLibAuth":false,"EnableHns":true,"EnableNewReader":true,"FileCache":{"CacheFileForRangeRead":false,"DownloadChunkSizeMb":200,"EnableCrc":false,"EnableODirect":false,"EnableParallelDownloads":false,"ExperimentalExcludeRegex":"","ExperimentalParallelDownloadsDefaultOn":true,"MaxParallelDownloads":512,"MaxSizeMb":-1,"ParallelDownloadsPerFile":16,"WriteBufferSize":4194304},"FileSystem":{"DirMode":"755","DisableParallelDirops":false,"ExperimentalEnableDentryCache":false,"ExperimentalEnableReaddirplus":false,"FileMode":"644","FuseOptions":[],"Gid":-1,"IgnoreInterrupts":true,"KernelListCacheTtlSecs":0,"PreconditionErrors":true,"RenameDirLimit":0,"TempDir":"","Uid":-1},"Foreground":false,"GcsAuth":{"AnonymousAccess":false,"KeyFile":"","ReuseTokenFromUrl":true,"TokenUrl":""},"GcsConnection":{"BillingProject":"","ClientProtocol":"http1","CustomEndpoint":"","EnableHttpDnsCache":false,"ExperimentalEnableJsonRead":false,"GrpcConnPoolSize":1,"HttpClientTimeout":0,"LimitBytesPerSec":-1,"LimitOpsPerSec":-1,"MaxConnsPerHost":0,"MaxIdleConnsPerHost":100,"SequentialReadSizeMb":200},"GcsRetries":{"ChunkTransferTimeoutSecs":10,"MaxRetryAttempts":0,"MaxRetrySleep":30000000000,"Multiplier":2,"ReadStall":{"Enable":true,"InitialReqTimeout":20000000000,"MaxReqTimeout":1200000000000,"MinReqTimeout":1500000000,"ReqIncreaseRate":15,"ReqTargetPercentile":0.99}},"ImplicitDirs":false,"List":{"EnableEmptyManagedFolders":false},"Logging":{"FilePath":"","Format":"json","LogRotate":{"BackupFileCount":10,"Compress":true,"MaxFileSizeMb":512},"Severity":"INFO"},"MachineType":"","MetadataCache":{"DeprecatedStatCacheCapacity":20460,"DeprecatedStatCacheTtl":60000000000,"DeprecatedTypeCacheTtl":60000000000,"EnableNonexistentTypeCache":false,"ExperimentalMetadataPrefetchOnMount":"disabled","NegativeTtlSecs":5,"StatCacheMaxSizeMb":33,"TtlSecs":60,"TypeCacheMaxSizeMb":4},"Metrics":{"BufferSize":256,"CloudMetricsExportIntervalSecs":0,"PrometheusPort":0,"StackdriverExportInterval":0,"UseNewNames":false,"Workers":3},"Monitoring":{"ExperimentalTracingMode":"","ExperimentalTracingSamplingRatio":0},"OnlyDir":"","Profile":"","Read":{"BlockSizeMb":16,"EnableBufferedRead":false,"GlobalMaxBlocks":40,"InactiveStreamTimeout":10000000000,"MaxBlocksPerHandle":20,"MinBlocksPerHandle":4,"RandomSeekThreshold":3,"StartBlocksPerHandle":1},"Write":{"BlockSizeMb":32,"CreateEmptyFile":false,"EnableRapidAppends":true,"EnableStreamingWrites":true,"FinalizeFileForRapid":false,"GlobalMaxBlocks":4,"MaxBlocksPerFile":1}}}
Error: daemonize.Run: readFromProcess: sub-process: Error while mounting gcsfuse: mountWithArgs: mountWithStorageHandle: mount: mount: running /usr/bin/fusermount: exit status 1
{"timestamp":{"seconds":1759549131,"nanos":670122148},"severity":"INFO","message":"2025/10/04 03:38:51.670064 Error occurred during command execution on gcsfuse/3.4.0 (Go version go1.24.5): daemonize.Run: readFromProcess: sub-process: Error while mounting gcsfuse: mountWithArgs: mountWithStorageHandle: mount: mount: running /usr/bin/fusermount: exit status 1"}

---

### 🤖 Cursor Assistant

I can help you troubleshoot this `gcsfuse` mounting error. The error "exit status 1" from `fusermount` typically indicates one of several common issues. Let me guide you through the solutions:

## Common Causes and Solutions:

### 1. **Check if the mount point exists**
```bash
ls -la /mnt/gcs
```
If it doesn't exist, create it:
```bash
sudo mkdir -p /mnt/gcs
```

### 2. **Check if already mounted**
The mount point might already be in use:
```bash
mount | grep /mnt/gcs
```
If it's already mounted, unmount it first:
```bash
fusermount -u /mnt/gcs
# or
sudo umount /mnt/gcs
```

### 3. **Check FUSE installation**
Ensure FUSE is properly installed:
```bash
# Check if fuse is available
which fusermount
# Check kernel module
lsmod | grep fuse
# If not loaded, load it
sudo modprobe fuse
```

### 4. **Permission issues**
Try mounting with proper permissions:
```bash
# Ensure the directory is writable
sudo chown $(whoami):$(whoami) /mnt/gcs
sudo chmod 755 /mnt/gcs

# Try mounting with your user
gcsfuse --foreground boj /mnt/gcs
```

### 5. **Check for stale mounts**
```bash
# Clean up any stale mount references
sudo umount -l /mnt/gcs 2>/dev/null
fusermount -uz /mnt/gcs 2>/dev/null
```

### 6. **Run with debug mode**
Get more detailed error information:
```bash
gcsfuse --debug_fuse --debug_gcs --foreground boj /mnt/gcs
```

### Recommended troubleshooting sequence:
```bash
# 1. Clean up
fusermount -u /mnt/gcs 2>/dev/null || true

# 2. Ensure directory exists with correct permissions
sudo mkdir -p /mnt/gcs
sudo chown $(whoami):$(whoami) /mnt/gcs

# 3. Try mounting with foreground mode for better error messages
gcsfuse --foreground boj /mnt/gcs
```

If the issue persists after trying these steps, please share the output from the debug command so I can help you further diagnose the specific problem.

---

### 👤 You

(base) root@C.26392409:~/SFTvsRL$ gcsfuse --foreground boj /mnt/gcs
{"timestamp":{"seconds":1759549250,"nanos":92509105},"severity":"INFO","message":"Start gcsfuse/3.4.0 (Go version go1.24.5) for app \"\" using mount point: /mnt/gcs\n"}
{"timestamp":{"seconds":1759549250,"nanos":92600416},"severity":"INFO","message":"GCSFuse config","config":{"AppName":"","CacheDir":"","CloudProfiler":{"AllocatedHeap":true,"Cpu":true,"Enabled":false,"Goroutines":false,"Heap":true,"Label":"gcsfuse-0.0.0","Mutex":false},"Debug":{"ExitOnInvariantViolation":false,"Fuse":false,"Gcs":false,"LogMutex":false},"DisableAutoconfig":false,"EnableAtomicRenameObject":true,"EnableGoogleLibAuth":false,"EnableHns":true,"EnableNewReader":true,"FileCache":{"CacheFileForRangeRead":false,"DownloadChunkSizeMb":200,"EnableCrc":false,"EnableODirect":false,"EnableParallelDownloads":false,"ExperimentalExcludeRegex":"","ExperimentalParallelDownloadsDefaultOn":true,"MaxParallelDownloads":512,"MaxSizeMb":-1,"ParallelDownloadsPerFile":16,"WriteBufferSize":4194304},"FileSystem":{"DirMode":"755","DisableParallelDirops":false,"ExperimentalEnableDentryCache":false,"ExperimentalEnableReaddirplus":false,"FileMode":"644","FuseOptions":[],"Gid":-1,"IgnoreInterrupts":true,"KernelListCacheTtlSecs":0,"PreconditionErrors":true,"RenameDirLimit":0,"TempDir":"","Uid":-1},"Foreground":true,"GcsAuth":{"AnonymousAccess":false,"KeyFile":"","ReuseTokenFromUrl":true,"TokenUrl":""},"GcsConnection":{"BillingProject":"","ClientProtocol":"http1","CustomEndpoint":"","EnableHttpDnsCache":false,"ExperimentalEnableJsonRead":false,"GrpcConnPoolSize":1,"HttpClientTimeout":0,"LimitBytesPerSec":-1,"LimitOpsPerSec":-1,"MaxConnsPerHost":0,"MaxIdleConnsPerHost":100,"SequentialReadSizeMb":200},"GcsRetries":{"ChunkTransferTimeoutSecs":10,"MaxRetryAttempts":0,"MaxRetrySleep":30000000000,"Multiplier":2,"ReadStall":{"Enable":true,"InitialReqTimeout":20000000000,"MaxReqTimeout":1200000000000,"MinReqTimeout":1500000000,"ReqIncreaseRate":15,"ReqTargetPercentile":0.99}},"ImplicitDirs":false,"List":{"EnableEmptyManagedFolders":false},"Logging":{"FilePath":"","Format":"json","LogRotate":{"BackupFileCount":10,"Compress":true,"MaxFileSizeMb":512},"Severity":"INFO"},"MachineType":"","MetadataCache":{"DeprecatedStatCacheCapacity":20460,"DeprecatedStatCacheTtl":60000000000,"DeprecatedTypeCacheTtl":60000000000,"EnableNonexistentTypeCache":false,"ExperimentalMetadataPrefetchOnMount":"disabled","NegativeTtlSecs":5,"StatCacheMaxSizeMb":33,"TtlSecs":60,"TypeCacheMaxSizeMb":4},"Metrics":{"BufferSize":256,"CloudMetricsExportIntervalSecs":0,"PrometheusPort":0,"StackdriverExportInterval":0,"UseNewNames":false,"Workers":3},"Monitoring":{"ExperimentalTracingMode":"","ExperimentalTracingSamplingRatio":0},"OnlyDir":"","Profile":"","Read":{"BlockSizeMb":16,"EnableBufferedRead":false,"GlobalMaxBlocks":40,"InactiveStreamTimeout":10000000000,"MaxBlocksPerHandle":20,"MinBlocksPerHandle":4,"RandomSeekThreshold":3,"StartBlocksPerHandle":1},"Write":{"BlockSizeMb":32,"CreateEmptyFile":false,"EnableRapidAppends":true,"EnableStreamingWrites":true,"FinalizeFileForRapid":false,"GlobalMaxBlocks":4,"MaxBlocksPerFile":1}}}
{"timestamp":{"seconds":1759549250,"nanos":92838161},"severity":"INFO","message":"Creating Storage handle..."}
{"timestamp":{"seconds":1759549250,"nanos":92843521},"severity":"INFO","message":"UserAgent = gcsfuse/3.4.0 (Go version go1.24.5) (GPN:gcsfuse) (Cfg:0:0:0:1:0:0)\n"}
{"timestamp":{"seconds":1759549250,"nanos":93445332},"severity":"INFO","message":"Creating a mount at \"/mnt/gcs\"\n"}

WARNING: gcsfuse invoked as root. This will cause all files to be owned by
root. If this is not what you intended, invoke gcsfuse as the user that will
be interacting with the file system.
{"timestamp":{"seconds":1759549250,"nanos":93473312},"severity":"INFO","message":"Creating a new server...\n"}
{"timestamp":{"seconds":1759549250,"nanos":93487932},"severity":"INFO","message":"Set up root directory for bucket boj"}
{"timestamp":{"seconds":1759549250,"nanos":93494292},"severity":"INFO","message":"GetStorageLayout <- (boj)"}
{"timestamp":{"seconds":1759549251,"nanos":132556457},"severity":"INFO","message":"GetStorageLayout -> (boj) 1039 msec"}
{"timestamp":{"seconds":1759549251,"nanos":515140634},"severity":"INFO","message":"Mounting file system \"boj\"..."}
/usr/bin/fusermount: fuse device not found, try 'modprobe fuse' first
{"timestamp":{"seconds":1759549251,"nanos":516482048},"severity":"ERROR","message":"Error while mounting gcsfuse: mountWithStorageHandle: mount: mount: running /usr/bin/fusermount: exit status 1\n"}
Error: mountWithStorageHandle: mount: mount: running /usr/bin/fusermount: exit status 1
{"timestamp":{"seconds":1759549251,"nanos":516510038},"severity":"INFO","message":"Error occurred during command execution on gcsfuse/3.4.0 (Go version go1.24.5): mountWithStorageHandle: mount: mount: running /usr/bin/fusermount: exit status 1"}

---

### 🤖 Cursor Assistant

Perfect! Now I can see the exact issue. The error message is clear:

```
/usr/bin/fusermount: fuse device not found, try 'modprobe fuse' first
```

The FUSE kernel module is not loaded. Here's how to fix it:

---

### 👤 You

I'm inside a docker

---

### 🤖 Cursor Assistant

Ah, I understand! You're inside a Docker container. The issue is that FUSE needs to be set up properly for Docker containers. Here's what you need to do:

## Solution for FUSE in Docker:

### Option 1: Load FUSE module on the host machine (recommended)
Exit the Docker container and run on your **host machine**:
```bash
sudo modprobe fuse
```

Then restart your container with the proper privileges:
```bash
docker run --privileged --device /dev/fuse --cap-add SYS_ADMIN \
  -v /path/to/credentials:/credentials \
  your-image
```

### Option 2: If you need to fix the current container

**On the host machine** (not in Docker), run:
```bash
# Load the FUSE module on the host
sudo modprobe fuse

# Check if it's loaded
lsmod | grep fuse
```

Then, you need to restart your container with the right flags. Your container needs:
- `--privileged` flag OR
- `--device /dev/fuse` and `--cap-add SYS_ADMIN`

### Option 3: Check if /dev/fuse exists in the container

Inside the Docker container, check:
```bash
ls -l /dev/fuse
```

If it doesn't exist, your container wasn't started with the right privileges.

### Recommended Docker run command:
```bash
docker run -it \
  --device /dev/fuse \
  --cap-add SYS_ADMIN \
  --security-opt apparmor:unconfined \
  your-image
```

Or if that doesn't work, use privileged mode (less secure but simpler):
```bash
docker run -it --privileged your-image
```

**Note:** You'll need to exit your current container, ensure FUSE is loaded on the host, and restart the container with the proper flags. The FUSE kernel module needs to be loaded on the **host** machine, and the container needs the proper capabilities to access it.

---

### 👤 You

I cannot do any of these. How can I upload large files to gcs

---

### 🤖 Cursor Assistant

If you can't use `gcsfuse`, there are several other ways to upload large files to Google Cloud Storage:

## Option 1: Use `gsutil` (Recommended for large files)

`gsutil` is the official GCS command-line tool and handles large files efficiently with automatic resumable uploads:

```bash
# Single file upload
gsutil cp /path/to/large/file gs://boj/destination/path/

# Upload entire directory
gsutil -m cp -r /path/to/directory gs://boj/destination/path/

# Upload with parallel composite uploads (faster for large files)
gsutil -o GSUtil:parallel_composite_upload_threshold=150M cp /path/to/large/file gs://boj/

# Resume interrupted uploads automatically
gsutil cp -n /path/to/large/file gs://boj/
```

## Option 2: Use Python with `google-cloud-storage`

```python
from google.cloud import storage
import os

def upload_large_file(bucket_name, source_file, destination_blob):
    """Upload a file to GCS with progress tracking"""
    storage_client = storage.Client()
    bucket = storage_client.bucket(bucket_name)
    blob = bucket.blob(destination_blob)
    
    # For large files, use chunk upload
    blob.chunk_size = 5 * 1024 * 1024  # 5 MB chunks
    
    print(f"Uploading {source_file} to gs://{bucket_name}/{destination_blob}")
    blob.upload_from_filename(source_file)
    print(f"Upload complete!")

# Usage
upload_large_file("boj", "/path/to/file", "destination/path/file")
```

## Option 3: Use `gcloud storage` (newer CLI)

```bash
# Single file
gcloud storage cp /path/to/file gs://boj/destination/

# Directory with parallel uploads
gcloud storage cp -r /path/to/directory gs://boj/destination/

# With progress
gcloud storage cp --progress /path/to/large/file gs://boj/
```

## Option 4: Use `rclone` (great for syncing)

```bash
# Configure rclone for GCS
rclone config

# Upload file
rclone copy /path/to/file remote:boj/destination/

# Sync entire directory with bandwidth limit
rclone sync /path/to/directory remote:boj/destination/ --progress --bwlimit 50M
```

## Which method to use?

- **For model checkpoints/training outputs**: Use `gsutil -m cp -r` for parallel uploads
- **For very large files (>150MB)**: Use `gsutil` with parallel composite uploads
- **For programmatic uploads**: Use Python `google-cloud-storage`
- **For continuous syncing**: Use `rclone` or `gsutil rsync`

**Quick example for your use case:**

```bash
# Upload a directory of model checkpoints
gsutil -m cp -r /path/to/checkpoints gs://boj/model-outputs/

# Or with progress indicator
gsutil -m cp -r /path/to/checkpoints gs://boj/model-outputs/ 2>&1 | tee upload.log
```

Would you like help setting up any of these methods in your Docker container?

---


*Exported from [Cursor View](https://github.com/saharmor/cursor-view)*