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add validator trobleshoot section to fix memory fragmentation problem #134

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merged 4 commits into from
Oct 27, 2021

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yun-yeo
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@yun-yeo yun-yeo commented Oct 26, 2021

Add troubleshoot section for the core memory fragmentation issue

@yun-yeo yun-yeo added the documentation Improvements or additions to documentation label Oct 26, 2021
@yun-yeo yun-yeo self-assigned this Oct 26, 2021
@@ -106,3 +106,43 @@ The LCD to which the voter is connecting might be running from a different netwo
Ensure you specify the LCD for the same network to which your node is connecting.

If you run a [local LCD](../Start-LCD.md) (for example, localhost:1317), ensure your LCD is connecting to the same node.

## Terrad crashes because of out of memory
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Terrad crashes because of memory fragmentation


## Terrad crashes because of out of memory

The default memory allocator is causing memory fragmentation issue on the `Columbus-5` network as described in [the issue](https://github.com/terra-money/core/issues/592). We highly recommend to install `jemalloc` and preload that `jemalloc` shared library with following steps:
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As described in this issue, the default memory allocator causes memory fragmentation on the Columbus-5 network. To fix this problem, complete the following steps to install jemalloc and preload the jemalloc shared library:

sudo make install
```

2. Restart the process with `LD_PRELOAD=/usr/local/lib/libjemalloc.so terrad start`.
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Restart the process by running LD_PRELOAD=/usr/local/lib/libjemalloc.so terrad start.

@stevenTerra
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I added just a few minor changes.

@yun-yeo
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yun-yeo commented Oct 27, 2021

Thanks, I applied the changes.

Later can we append this section as recommendations?

@yun-yeo yun-yeo merged commit 039d37b into main Oct 27, 2021
@yun-yeo yun-yeo deleted the add-memory-fragmentation-troubleshoot branch October 27, 2021 03:16
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