使用processor_split_log_regex采集java堆栈日志时没有多行合并为一条数据

[jesse-ou]

loongcollector:3.1.4
使用文档中的示例：
``

样例

采集/home/test-log/路径下的multiline.log文件，并按行首正则进行多行切分。

• 输入

echo -e  '[2022-03-03 18:00:00] xxx1\nyyyyy\nzzzzzz\n[2022-03-03 18:00:01] xxx2\nyyyyy\nzzzzzz' >> /home/test-log/multiline.log

• 采集配置

enable: true
inputs:
  - Type: input_file
    FilePaths: 
      - /home/test-log/*.log
processors:
  - Type: processor_split_log_regex
    SplitRegex: \[\d+-\d+-\d+\s\d+:\d+:\d+]\s.*
    SplitKey: content
    PreserveOthers: true
flushers:
  - Type: flusher_stdout
    OnlyStdout: true

实际输出
2025-09-05 05:18:38 {"content":"[2022-03-03 18:00:00] xxx1","time":"1757049517"}
2025-09-05 05:18:38 {"content":"yyyyy","time":"1757049517"}
2025-09-05 05:18:38 {"content":"zzzzzz","time":"1757049517"}
2025-09-05 05:18:38 {"content":"[2022-03-03 18:00:01] xxx2","time":"1757049517"}
2025-09-05 05:18:38 {"content":"yyyyy","time":"1757049517"}
2025-09-05 05:18:38 {"content":"zzzzzz","time":"1757049517"}

[jesse-ou]

loongcollector守护进程的配置

apiVersion: apps/v1
kind: DaemonSet
metadata:
  annotations:
    deprecated.daemonset.template.generation: "7"
  creationTimestamp: 2025-09-05T04:39:52Z
  generation: 7
  labels:
    k8s-app: loongcollector-ds
  name: loongcollector-ds
  namespace: loongcollector
  resourceVersion: "1346898"
  uid: d42de1b0-1a7b-4e0d-8912-3f03e6a5c7fa
spec:
  revisionHistoryLimit: 10
  selector:
    matchLabels:
      k8s-app: loongcollector-ds
  template:
    metadata:
      annotations:
        kubectl.kubernetes.io/restartedAt: 2025-09-05T05:18:04Z
      creationTimestamp: null
      labels:
        k8s-app: loongcollector-ds
    spec:
      containers:
        - env:
            - name: ALIYUN_LOG_ENV_TAGS
              value: _node_name_|_node_ip_
            - name: _node_name_
              valueFrom:
                fieldRef:
                  apiVersion: v1
                  fieldPath: spec.nodeName
            - name: _node_ip_
              valueFrom:
                fieldRef:
                  apiVersion: v1
                  fieldPath: status.hostIP
            - name: cpu_usage_limit
              value: "1"
            - name: mem_usage_limit
              value: "512"
          image: sls-opensource-registry.cn-shanghai.cr.aliyuncs.com/loongcollector-community-edition/loongcollector:3.1.4
          imagePullPolicy: IfNotPresent
          name: loongcollector
          resources:
            limits:
              cpu: "1"
              memory: 1Gi
            requests:
              cpu: 400m
              memory: 384Mi
          terminationMessagePath: /dev/termination-log
          terminationMessagePolicy: File
          volumeMounts:
            - mountPath: /var/run
              name: run
            - mountPath: /logtail_host
              mountPropagation: HostToContainer
              name: root
              readOnly: true
            - mountPath: /usr/local/loongcollector/data
              name: checkpoint
            - mountPath: /usr/local/loongcollector/conf/continuous_pipeline_config/local
              name: user-config
              readOnly: true
      dnsPolicy: ClusterFirstWithHostNet
      hostNetwork: true
      restartPolicy: Always
      schedulerName: default-scheduler
      securityContext: {}
      terminationGracePeriodSeconds: 30
      tolerations:
        - operator: Exists
      volumes:
        - hostPath:
            path: /var/run
            type: Directory
          name: run
        - hostPath:
            path: /
            type: Directory
          name: root
        - hostPath:
            path: /etc/loongcollector-loongcollector-ds/checkpoint
            type: DirectoryOrCreate
          name: checkpoint
        - configMap:
            defaultMode: 420
            name: loongcollector-user-configmap
          name: user-config
  updateStrategy:
    rollingUpdate:
      maxSurge: 0
      maxUnavailable: 1
    type: RollingUpdate