55 lines
1.7 KiB
Bash
55 lines
1.7 KiB
Bash
#!/bin/bash
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TARGET=$1
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if [ -z "$TARGET" ]; then
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echo "用法: $0 <target>"
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echo "请指定同步目标:"
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echo " doris - 启动 Doris 增量同步定时任务"
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echo " mysql - 启动 MySQL 增量同步定时任务"
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exit 1
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fi
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if [ "$TARGET" != "doris" ] && [ "$TARGET" != "mysql" ]; then
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echo "错误: 请指定目标 (doris 或 mysql)"
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exit 1
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fi
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WORK_DIR="/usr/local/datax"
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SCRIPT_NAME="run_jobs_inc.sh"
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SCRIPT_PATH="$WORK_DIR/$SCRIPT_NAME"
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LOG_FILE="$WORK_DIR/logs/datax_inc_${TARGET}_cron.log"
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export PATH=$PATH:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin
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[ -f /etc/profile ] && . /etc/profile
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[ -f ~/.bash_profile ] && . ~/.bash_profile
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[ -f ~/.profile ] && . ~/.profile
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echo "正在检查环境..."
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if [ ! -d "$WORK_DIR" ]; then
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echo "错误: 工作目录 $WORK_DIR 不存在"; exit 1
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fi
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if [ ! -f "$SCRIPT_PATH" ]; then
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echo "错误: 执行脚本 $SCRIPT_PATH 不存在"; exit 1
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fi
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if [ ! -d "$(dirname "$LOG_FILE")" ]; then
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mkdir -p "$(dirname "$LOG_FILE")"
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fi
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chmod +x "$SCRIPT_PATH"
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# 构造 cron 命令，注意转义和参数传递
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# 修改为每 5 秒运行一次 (通过循环实现，因为 crontab 最小粒度是分钟)
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CRON_CMD="* * * * * for i in {1..12}; do /bin/bash $SCRIPT_PATH $TARGET >> $LOG_FILE 2>&1; sleep 5; done"
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# 查找已存在的任务 (匹配脚本路径和目标参数)
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EXISTING_JOB=$(crontab -l 2>/dev/null | grep "$SCRIPT_PATH $TARGET")
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if [ -n "$EXISTING_JOB" ]; then
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echo "提示: 该任务已存在，将先删除旧任务再重新添加..."
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crontab -l 2>/dev/null | grep -v "$SCRIPT_PATH $TARGET" | crontab -
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fi
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(crontab -l 2>/dev/null; echo "$CRON_CMD") | crontab -
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echo "✅ $TARGET 增量定时任务设置成功"
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crontab -l
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