# Troubleshoot {% hint style="success" %} If you encounter any issue you cannot solve, feel free to reach out to us at **.** Alternatively you can open a Github issue [here](https://github.com/harmony-one/auto-node/issues). {% endhint %} ## Inspect AutoNode logs All AutoNode generated logs are saved in `$HOME/.hmy` when you execute the following command: ```bash ls $HOME/.hmy/*.log ``` You should see 2 files, `autonode_monitor.log` and `autonode_node.log`. Inspect those two files with your favorite command-line editor (i.e: `vim`) to see where things might have gone wrong. You might also find it useful to inspect the Harmony Node logs. You can do so with the following command: ```bash vim $HOME/harmony_node/latest/zero*.log ``` > You can change the `vim` part of the command for your favorite text editor. ## Node failed to start A symptom of this is seeing an error to connect to `http://localhost:9500/`. \ You can inspect what went wrong with the following command: ```bash auto-node node log auto-node node status ``` A common issue is that your machine will not have enough disk space. \ You can check your disk space usage with the following command: ```bash df -H ``` > If your `use%` is at 95-100% and your node failed to start, you probably have insufficient disk space. Look into how to increase your disk space on your cloud provider. You can also try to reboot your AutoNode with: ```bash auto-node kill auto-node run ``` > Substitute `` with whatever run params you want to use. ## Fixing Signing Issues Sometimes the Harmony Node may have some signing issues. In this case, we have found it best to just restart the Node. You can do so by first killing AutoNode: ```bash auto-node kill ``` Then restarting AutoNode with whatever your initial run command was. For example, one could run it with: ```bash auto-node run --expose-rpc ``` {% hint style="warning" %} **DO NOT** re-run with the `--clean` or `--fast-sync` options as they will most likely *regress* your block height to the last snapshotted DB. {% endhint %} ## Restart the Harmony Node You can restart the Harmony Node service with the following command: ```bash auto-node node restart ``` You can check the status of the service with the following command: ```bash auto-node node status ``` You can fetch the Harmony Node version with the following command: ```bash auto-node node version ``` ## Restart the AutoNode Monitor You can restart the monitor service with the following command: ```bash auto-node monitor restart ``` You can check the status of the service with the following command: ```bash auto-node monitor status ``` ## Re-Authenticating your validator wallet If your encrypted passphrase for your validator is ever invalidated, you can re-encrypt and save it with the following command: ```bash auto-node auth-wallet ``` ## Optimize Operating System You can choose to optimize your operating system for running a harmony node. The optimizations, or tunes, are made to keep your node safe but also lifts some default restrictions. Here is the command to tune your OS with AutoNode: ```bash auto-node tune kernel --save ``` > This will tune the kernel and the `--save` option will make it persistant. If you do not have the `--save` option, the tunes will only last untill the system is rebooted (by you or your VPS).\ > \ > Note that all the tunes will be displayed and confirmation asked before applying the tunes. You can also tune/optimize your network settings with the following command: ```bash auto-node tune network --save ``` ## Restoring Operating System from Optimization If you want to revert the optimization/tune applied by AutoNode, you can do so by running the following command: ```bash auto-node tune restore ``` > Note that you can run the command muliple times to restore previous tunes chronologically. Moveover, the restored tunes will be displayed and a confirmation will be asked before applying the restoreation. ## Fresh Install First, remove all of the AutoNode files. You can do so with the following command: ```bash auto-node kill systemctl --user disable autonoded@node.service systemctl --user disable autonoded@monitor.service rm -rf ~/.hmy rm -rf ~/harmony_node rm -rf ~/harmony_wallet_pass rm -f ~/harmony_validator_config.json rm -f ~/bin/auto-node rm -f ~/bin/autonode-service.py ``` After, you can re-install AutoNode from fresh using the steps in the Install & Run section. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.harmony.one/home/network/validators/node-setup/installing-updating/installing-node/using-autonode/troubleshoot.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.