[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["很难理解","hardToUnderstand","thumb-down"],["信息或示例代码不正确","incorrectInformationOrSampleCode","thumb-down"],["没有我需要的信息/示例","missingTheInformationSamplesINeed","thumb-down"],["翻译问题","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC):2025-08-25。"],[],[],null,["# Upgrading to OpenJDK 11 on customer-hosted instances\n\n\u003e | **Deprecated:** Looker no longer supports OpenJDK 8.\n\nLooker supports OpenJDK version 11+ on customer-hosted Looker instances. This page describes how to upgrade from OpenJDK 8 to OpenJDK 11. Upgrading to OpenJDK 11 from OpenJDK 8 requires downloading and installing OpenJDK 11 and then downloading and installing a new `looker` startup script. For example:\n\n1. Stop the Looker process from shell, as the **looker** user:\n\n sudo su - looker\n cd /home/looker/looker\n ./looker stop\n\n2. If you are updating a Looker cluster, repeat the previous step to stop Looker on every node.\n\n3. Download and install [OpenJDK 11](https://www.oracle.com/java/technologies/downloads/#java11-linux).\n\n4. Download the [`looker11` startup script](https://github.com/looker-open-source/customer-scripts/blob/master/startup_scripts/looker11).\n\n5. Delete the previous version of the `looker` startup script from your `looker` directory:\n\n rm looker\n\n6. Copy the `looker11` startup script to your `looker` directory and rename the script `looker`. *The new startup script must be called `looker` to run properly*:\n\n mv \u003cdownload_directory\u003e/looker11 looker\n\n7. If you are updating a Looker cluster, repeat steps 3 through 6 on all nodes.\n\n8. Start up Looker on all nodes.\n\n ./looker start"]]