# S01028 {#s01028}

## Error Code {#error_code .section}

S01028

## Error Message {#error_message .section}

`Out of memory error occurred during asynchronous sorting in TSDB cache engine. Will retry in xxx seconds. RefId:S01028`

## Probable Causes {#probable_causes .section}

Out of memory error while asynchronous sorting of the TSDB engine.

## Solutions {#solutions .section}

-   Execute functions to clear memory and cache to free up memory.
-   Check if the submitted tasks consume excessive memory, and stop the relevant tasks.
-   Adjust the *maxMemSize*value.

**Parent topic:**[Error Code Reference](../../Troubleshooting/ErrorCode.md)

