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# GCP PostgreSQL instance database flag log\_lock\_waits is disabled misconfiguration detected in code

## Rule Details

|                        |                                      |
| ---------------------- | ------------------------------------ |
| Cortex AppSec Rule ID  | APPSEC\_GCP\_54                      |
| Category - Subcategory | Logging - Disabled or missing        |
| Provider               | GCP                                  |
| Severity               | LOW                                  |
| Framework              | Terraform, Terraform Plan            |
| Mapped CSPM/KSPM Rule  | 2a940029-8a0d-4798-b312-13d26783b43a |

## Impact

Deadlock timeout defines the time to wait on a lock before checking for any conditions. Frequent runovers on deadlock timeout can be an indication of an underlying issue. Log these waits on locks using the *log\_lock\_waits* database flag and use the information to identify poor performance due to locking delays, or if a specially-crafted SQL is attempting to starve resources through holding locks for excessive amounts of time. We recommended you set the *log\_lock\_waits* flag for a PostgreSQL instance to *On*. This will create a log for any session and allow you to identify waits that take longer than the allotted *deadlock\_timeout* time to acquire a lock.

## How to Fix

*Resource:* google\_sql\_database\_instance

* *Arguments:* database\_version = "POSTGRES\_\* " settings::database\_flags: key:"log\_lock\_waits", value: by default set to "off" \[source,go]

***

resource "google\_sql\_database\_instance" "default" { name = "master-instance" database\_version = "POSTGRES\_11" region = "us-central1"

settings {

* database\_flags {
* name = "log\_lock\_waits"
* value = "on" } } }

***


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