今天早上同事反應jenkins構建job發生異常，於是登錄機器查看發現磁盤空間已滿。進一步排查之后發現jenkins的catalina.out文件已占滿磁盤空間。
用tail看了下日志后面都是關於DNS的。
[DNSQuestion@1398141921 type: TYPE_IGNORE index 0, class: CLASS_UNKNOWN index 0, name: ]
[DNSQuestion@752862545 type: TYPE_IGNORE index 0, class: CLASS_UNKNOWN index 0, name: ]
[DNSQuestion@2077034887 type: TYPE_IGNORE index 0, class: CLASS_UNKNOWN index 0, name: ]
[DNSQuestion@545402584 type: TYPE_IGNORE index 0, class: CLASS_UNKNOWN index 0, name: ]
[DNSQuestion@1546918866 type: TYPE_IGNORE index 0, class: CLASS_UNKNOWN index 0, name: ]
[DNSQuestion@236169288 type: TYPE_IGNORE index 0, class: CLASS_UNKNOWN index 0, name: ]
[DNSQuestion@494995772 type: TYPE_IGNORE index 0, class: CLASS_UNKNOWN index 0, name: ]
[DNSQuestion@742654138 type: TYPE_IGNORE index 0, class: CLASS_UNKNOWN index 0, name: ]
[DNSQuestion@1347581035 type: TYPE_IGNORE index 0, class: CLASS_UNKNOWN index 0, name: ]
[DNSQuestion@1125173185 type: TYPE_IGNORE index 0, class: CLASS_UNKNOWN index 0, name: ]
[DNSQuestion@1447947894 type: TYPE_IGNORE index 0, class: CLASS_UNKNOWN index 0, name: ]
[DNSQuestion@1518364117 type: TYPE_IGNORE index 0, class: CLASS_UNKNOWN index 0, name: ]
[DNSQuestion@431141826 type: TYPE_IGNORE index 0, class: CLASS_UNKNOWN index 0, name: ]
[DNSQuestion@1549353466 type: TYPE_IGNORE index 0, class: CLASS_UNKNOWN index 0, name: ]
網上搜了下解決方法。預算刪除大日志文件，並在jenkins配置里面設置了日志項
然后重啟jenkins，完成。