Change launch backend script to handle errors gracefully (#3334)
### What problem does this PR solve?
The `launch_backend_service.sh` script enters infinite loops for both
the task executors and the backend server. When an error occurs in any
of these processes, the script continuously restarts them without
properly handling termination signals. This behavior causes the script
to even ignore interrupts, leading to persistent error messages and
making it difficult to exit the script gracefully.
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### Explanation of Modifications
1. **Signal Trapping with `trap`:**
- The `trap cleanup SIGINT SIGTERM` line ensures that when a `SIGINT` or
`SIGTERM` signal is received, the cleanup function is invoked.
- The `cleanup` function sets the `STOP` flag to `true`, iterates
through all child process IDs stored in the `PIDS` array, and sends a
`kill` signal to each process to terminate them gracefully.
2. **Retry Limits:**
- Introduced a `MAX_RETRIES` variable to limit the number of restart
attempts for both `task_executor.py` and `ragflow_server.py`
- The loops now check if the retry count has reached the maximum limit.
If so, they invoke the `cleanup` function to terminate all processes and
exit the script.
3. **Process Tracking with `PIDS` Array:**
- After launching each background process (`task_exe` and `run_server`),
their Process IDs (PIDs) are stored in the `PIDS` array.
- This allows the `cleanup` function to terminate all child processes
effectively when needed.
4. **Graceful Shutdown:**
- When the `cleanup` function is called, it iterates over all child PIDs
and sends a termination signal (`kill`) to each, ensuring that all
subprocesses are stopped before the script exits.
5. **Logging Enhancements:**
- Added `echo` statements to provide clearer logs about the state of
each process, including attempts, successes, failures, and retries.
6. **Exit on Successful Completion:**
- If `ragflow_server.py` or a `task_executor.py` process exits with a
success code (0), the loop breaks, preventing unnecessary retries.
Co-authored-by: Kevin Hu <kevinhu.sh@gmail.com>
Add build image and launch from source in README (#2658)
### What problem does this PR solve?
Move the build image and launch from source back to README.
### Type of change
- [x] Documentation Update
---------
Signed-off-by: Jin Hai <haijin.chn@gmail.com>
Added kibana to make elastic management easier.
PR #1710 did this.
PR #1714 revert this.
This PR did again and fix some bugs.
- [x] Bug Fix (non-breaking change which fixes an issue)
- [x] New Feature (non-breaking change which adds functionality)
Set the number of task_executor processes through the environment variable WS. (#846)
### What problem does this PR solve?
### Type of change
- [x] Other (please describe): Use environment variable to control the
task executor processor number.
let file in knowledgebases visible in file manager (#714)
### What problem does this PR solve?
Let file in knowledgebases visible in file manager.
#162
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Optimize task broker and executor for reduce memory usage and deployment
complexity.
### Type of change
- [x] Performance Improvement
- [x] Refactoring
### Change Log
- Enhance redis utils for message queue(use stream)
- Modify task broker logic via message queue (1.get parse event from
message queue 2.use ThreadPoolExecutor async executor )
- Modify the table column name of document and task (process_duation ->
process_duration maybe just a spelling mistake)
- Reformat some code style(just what i see)
- Add requirement_dev.txt for developer
- Add redis container on docker compose
---------
Co-authored-by: Kevin Hu <kevinhu.sh@gmail.com>
### What problem does this PR solve?
_Briefly describe what this PR aims to solve. Include background context
that will help reviewers understand the purpose of the PR._
Issue link:#[[Link the issue
here](https://github.com/infiniflow/ragflow/issues/226)]
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
Sanan bin Tahir
Jin Hai
Zhichang Yu
Kevin Hu
dashi6174
Fakai Zhao