diff --git a/centos 安装 docker.md b/centos 安装 docker.md index 4cb1060..80329d8 100644 --- a/centos 安装 docker.md +++ b/centos 安装 docker.md @@ -9,10 +9,6 @@ ```bash curl -sSL https://get.docker.com/ | sh - #国内阿里云镜像 - curl -fsSL https://get.docker.com | bash -s docker --mirror Aliyun - #Azure源(中国区azure) - curl -fsSL https://get.docker.com | bash -s docker --mirror AzureChinaCloud ``` ## oracle linxu diff --git a/linux/fdisk磁盘分区.md b/linux/fdisk磁盘分区.md index ff25fb0..4c61890 100644 --- a/linux/fdisk磁盘分区.md +++ b/linux/fdisk磁盘分区.md @@ -89,6 +89,27 @@ mkfs.ext3 /dev/sdb + + +格式化分区为XFS + +使用mkfs.xfs命令。如果已有其他文件系统创建在此分区,必须加上"-f"参数来覆盖它。 + +``` +sudo mkfs.xfs -f /dev/sdb1 +``` + +挂载 xfs + +``` + sudo mount -t xfs /dev/sdb1 /mnt + /dev/sdb1 /storage xfs defaults 0 0 +``` + + + + + 挂载分区 编辑文件 diff --git a/linux/linux分析进程内存占用.md b/linux/linux分析进程内存占用.md new file mode 100644 index 0000000..455168e --- /dev/null +++ b/linux/linux分析进程内存占用.md @@ -0,0 +1,38 @@ +### 寻找 内存orCPU 占用最高的程序 + + + +查看内存最多的进程 + +方法1 + +``` +ps -aux | sort -k4nr | head -10 +``` + +命令解释: + +1. `ps`:参数a指代all——所有的进程,u指代userid——执行该进程的用户id,x指代显示所有程序,不以终端机来区分。ps -aux的输出格式如下: +2. sort -k4nr中(k代表从根据哪一个关键词排序,后面的数字4表示按照第四列排序;n指代numberic sort,根据其数值排序;r指代reverse,这里是指反向比较结果,输出时默认从小到大,反向后从大到小。)。本例中,可以看到%MEM在第4个位置,根据%MEM的数值进行由大到小的排序。-k3表示按照cpu占用率排序。 + + + +方法2: + +top (然后按下M,注意大写) + + + +查看CPU 占用最多的进程 + +方法1 + +``` +ps -aux | sort -k3nr | head -3 +``` + + + +方法2 + +top (然后按下P,注意大写) \ No newline at end of file diff --git a/postgresql_and_edb/EDB(postgresql 商业版)分区表.md b/postgresql_and_edb/EDB(postgresql 商业版)分区表.md index 1789b78..6a4b189 100644 --- a/postgresql_and_edb/EDB(postgresql 商业版)分区表.md +++ b/postgresql_and_edb/EDB(postgresql 商业版)分区表.md @@ -101,3 +101,53 @@ alter table t1 exchange partition p2 with table test_t1; ``` + + + + + + +快速创建分区表 + +```sql + +--生成sql + +select 'CREATE TABLE tcn_stat_algorithm_data_fltn_'||"FLT_NBR"|| ' PARTITION OF "TCN_STAT_ALGORITHM_DATA_FLTN" FOR VALUES IN (''' || "FLT_NBR"||''');' +from ( +select distinct "FLT_NBR"::varchar from "TCN_STAT_ALGORITHM_DATA" where "FLT_DT" between '20190101' and '20191231' +EXCEPT +select high_value from all_tab_partitions where table_name = '"TCN_STAT_ALGORITHM_DATA_FLTN"' +) + +--将上述查询结果另外开一个窗口进行执行,重复 第一步 直至 第一步查询不出结果。 + + + + +-- 生成创建 分区的sql +select 'CREATE TABLE IF NOT EXISTS t_icc_retail_price_' || LOWER(tirp.flight_no) || + ' PARTITION OF t_icc_retail_price FOR VALUES IN (''' || tirp.flight_no || ''');' +from (select distinct flight_no::varchar + from t_icc_retail_price + where batch_date >= '2023-01-01 00:00:00' + and batch_date <= '2023-11-30 00:00:00' + and deleted = 0) as tirp + + + + + + + +--执行该sql 进行数据导入 可以调整 FLT_DT 分批执行 (可以重复执行) + +INSERT INTO "TCN_STAT_ALGORITHM_DATA_FLTN" ("BOOKING_DATE", "BOOKING_TIME", "RDCP", "CARRIER", "FLT_NBR", "FLT_DT", "ORIG_AIRPORT_CD", "STOPOVER", "DEST_AIRPORT_CD", "CABIN_CD", "SCLS", "ROUTE_AMOUNT", "FINAL_AMOUNT", "TICKET_NO", "TICKET_ID", "FLTN_YEAR") + +SELECT "BOOKING_DATE", "BOOKING_TIME", "RDCP", "CARRIER", "FLT_NBR", "FLT_DT", "ORIG_AIRPORT_CD", "STOPOVER", "DEST_AIRPORT_CD", "CABIN_CD", "SCLS", "ROUTE_AMOUNT", "FINAL_AMOUNT", "TICKET_NO", "TICKET_ID", "FLTN_YEAR" FROM "TCN_STAT_ALGORITHM_DATA" + +where "FLT_DT" between '20230101' and '20231231' + +ON CONFLICT ("FLT_NBR","TICKET_ID") DO nothing +``` +