{"id":3813,"date":"2026-06-12T08:08:32","date_gmt":"2026-06-12T08:08:32","guid":{"rendered":"https:\/\/cloudsave.app\/?p=3813"},"modified":"2026-06-12T08:21:15","modified_gmt":"2026-06-12T08:21:15","slug":"diy-%e6%95%b0%e6%8d%ae%e5%ba%93%e5%a4%87%e4%bb%bd%e8%84%9a%e6%9c%ac%e7%9a%84%e9%9a%90%e6%82%a3-%e4%b8%ba%e4%bb%80%e4%b9%88%e8%87%aa%e5%ae%9a%e4%b9%89-bash-%e8%84%9a%e6%9c%ac%e6%97%a0%e6%b3%95%e5%9c%a8","status":"publish","type":"post","link":"https:\/\/cloudsave.app\/zh-hans\/knowledge-base\/diy-%e6%95%b0%e6%8d%ae%e5%ba%93%e5%a4%87%e4%bb%bd%e8%84%9a%e6%9c%ac%e7%9a%84%e9%9a%90%e6%82%a3-%e4%b8%ba%e4%bb%80%e4%b9%88%e8%87%aa%e5%ae%9a%e4%b9%89-bash-%e8%84%9a%e6%9c%ac%e6%97%a0%e6%b3%95%e5%9c%a8\/","title":{"rendered":"DIY \u6570\u636e\u5e93\u5907\u4efd\u811a\u672c\u7684\u9690\u60a3\uff1a\u4e3a\u4ec0\u4e48\u81ea\u5b9a\u4e49 Bash \u811a\u672c\u65e0\u6cd5\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u6269\u5c55"},"content":{"rendered":"<p>\u6bcf\u4e00\u4f4d\u6570\u636e\u5e93\u7ba1\u7406\u5458 (DBA) \u548c\u7cfb\u7edf\u5de5\u7a0b\u5e08\u5728\u804c\u4e1a\u751f\u6daf\u7684\u67d0\u4e2a\u9636\u6bb5\uff0c\u90fd\u66fe\u7f16\u5199\u8fc7\u7528\u4e8e\u5907\u4efd\u6570\u636e\u5e93\u7684\u81ea\u5b9a\u4e49 Shell \u811a\u672c\u3002\u8fd9\u51e0\u4e4e\u662f\u4e00\u79cd\u201c\u6210\u4eba\u793c\u201d\u3002\u5728\u9879\u76ee\u521d\u671f\uff0c\u4e00\u4e2a\u7b80\u5355\u7684 cron \u4efb\u52a1\u6267\u884c <code>mysqldump<\/code> \u6216 <code>pg_dump<\/code> \u5e76\u901a\u8fc7\u7ba1\u9053\u4f20\u8f93\u7ed9 <code>gzip<\/code>\uff0c\u770b\u8d77\u6765\u662f\u4e00\u4e2a\u4f18\u96c5\u3001\u8f7b\u91cf\u4e14\u7ecf\u6d4e\u9ad8\u6548\u7684\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n<p>\u7136\u800c\uff0c\u968f\u7740\u57fa\u7840\u8bbe\u65bd\u7684\u6269\u5c55\u3001\u6570\u636e\u91cf\u7684\u589e\u957f\u4ee5\u53ca\u6b63\u5e38\u8fd0\u884c\u65f6\u95f4 SLA\uff08\u670d\u52a1\u7b49\u7ea7\u534f\u8bae\uff09\u53d8\u5f97\u66f4\u52a0\u4e25\u683c\uff0c\u90a3 10 \u884c Bash \u811a\u672c\u6084\u7136\u53d8\u6210\u4e86\u4e00\u679a\u5b9a\u65f6\u70b8\u5f39\u3002\u751f\u4ea7\u73af\u5883\u9700\u8981\u9ad8\u53ef\u7528\u6027\u3001\u4e25\u683c\u7684\u6062\u590d\u70b9\u76ee\u6807 (RPO) \u548c\u5feb\u901f\u7684\u6062\u590d\u65f6\u95f4\u76ee\u6807 (RTO)\u3002\u5728\u8fd9\u4e9b\u73af\u5883\u4e2d\u4f9d\u8d56 DIY \u5907\u4efd\u811a\u672c\u4f1a\u5e26\u6765\u4e25\u91cd\u7684\u98ce\u9669\uff0c\u5305\u62ec\u6570\u636e\u4e00\u81f4\u6027\u95ee\u9898\u3001\u9759\u9ed8\u5931\u8d25\u3001\u5b89\u5168\u6f0f\u6d1e\u4ee5\u53ca\u96be\u4ee5\u7ba1\u7406\u7684\u6062\u590d\u6d41\u7a0b\u3002<\/p>\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u5256\u6790 DIY \u6570\u636e\u5e93\u5907\u4efd\u811a\u672c\u7684\u67b6\u6784\u7f3a\u9677\u548c\u9690\u85cf\u5371\u9669\uff0c\u63a2\u8ba8\u903b\u8f91\u5907\u4efd\u4e0e\u7269\u7406\u5907\u4efd\u7684\u6280\u672f\u9677\u9631\uff0c\u5e76\u8ba8\u8bba\u5982\u4f55\u8fc7\u6e21\u5230\u50cf CloudSave \u8fd9\u6837\u7684\u4f01\u4e1a\u7ea7\u89e3\u51b3\u65b9\u6848\uff0c\u4ee5\u4fdd\u62a4\u60a8\u7684\u5173\u952e\u4efb\u52a1\u6570\u636e\u3002<\/p>\n<h2>\u7b80\u5355\u5316\u7684\u5047\u8c61\uff1a\u5256\u6790\u7ecf\u5178\u7684 DIY \u811a\u672c<\/h2>\n<p>\u8981\u4e86\u89e3\u5176\u4e2d\u7684\u5371\u9669\uff0c\u6211\u4eec\u5fc5\u987b\u9996\u5148\u770b\u770b\u5178\u578b DIY \u5907\u4efd\u811a\u672c\u7684\u7ed3\u6784\u3002MySQL \u6570\u636e\u5e93\u7684\u6807\u51c6\u65b9\u6cd5\u901a\u5e38\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre><code class=\"language-bash\">#!\/bin\/bash\n# \u7b80\u5355\u7684 DIY MySQL \u5907\u4efd\u811a\u672c\nBACKUP_DIR=\"\/mnt\/backups\"\nDATE=$(date +%F)\nDB_USER=\"admin\"\nDB_PASS=\"SuperSecret123!\"\n\nmysqldump -u $DB_USER -p$DB_PASS my_database | gzip &gt; $BACKUP_DIR\/mydb_$DATE.sql.gz\n\n# \u5220\u9664 30 \u5929\u524d\u7684\u5907\u4efd\nfind $BACKUP_DIR -type f -name \"*.sql.gz\" -mtime +30 -exec rm {} ;\n<\/code><\/pre>\n<p>\u4e4d\u4e00\u770b\uff0c\u8fd9\u4e2a\u811a\u672c\u5b9e\u73b0\u4e86\u76ee\u6807\uff1a\u63d0\u53d6\u6570\u636e\u3001\u538b\u7f29\u6570\u636e\u5e76\u7ba1\u7406\u4fdd\u7559\u5468\u671f\u3002\u4f46\u5728\u8868\u9762\u4e4b\u4e0b\uff0c\u5b83\u5145\u6ee1\u4e86\u5173\u952e\u7f3a\u9677\uff0c\u6700\u7ec8\u4f1a\u5bfc\u81f4\u751f\u4ea7\u73af\u5883\u4e2d\u7684\u6570\u636e\u4e22\u5931\u3002<\/p>\n<h2>\u5371\u9669 1\uff1a\u9759\u9ed8\u5931\u8d25\u4e0e\u7ba1\u9053\u9677\u9631<\/h2>\n<p>DIY \u811a\u672c\u6700\u9634\u9669\u7684\u5371\u9669\u4e4b\u4e00\u662f\u9759\u9ed8\u5931\u8d25\u3002\u5728\u4e0a\u9762\u7684\u811a\u672c\u4e2d\uff0c<code>mysqldump<\/code> \u547d\u4ee4\u901a\u8fc7\u7ba1\u9053 (<code>|<\/code>) \u76f4\u63a5\u4f20\u8f93\u7ed9 <code>gzip<\/code>\u3002<\/p>\n<p>\u5728 Bash \u4e2d\uff0c\u7ba1\u9053\u7684\u9000\u51fa\u72b6\u6001\u662f\u7ba1\u9053\u4e2d<em>\u6700\u540e\u4e00\u4e2a<\/em>\u547d\u4ee4\u7684\u9000\u51fa\u72b6\u6001\u3002\u5982\u679c\u6570\u636e\u5e93\u670d\u52a1\u5668\u5185\u5b58\u8017\u5c3d\u3001\u8fde\u63a5\u65ad\u5f00\u6216\u5728\u8f6c\u50a8\u8fc7\u7a0b\u4e2d\u9047\u5230\u9501\u5b9a\u8868\uff0c<code>mysqldump<\/code> \u5c06\u5931\u8d25\u5e76\u629b\u51fa\u9519\u8bef\u3002\u7136\u800c\uff0c<code>gzip<\/code> \u4f1a\u6210\u529f\u538b\u7f29\u5b83\u63a5\u6536\u5230\u7684\u90e8\u5206\u8f93\u51fa\uff0c\u5e76\u4ee5\u72b6\u6001\u7801 <code>0<\/code>\uff08\u6210\u529f\uff09\u9000\u51fa\u3002<\/p>\n<p>\u60a8\u7684\u76d1\u63a7\u7cfb\u7edf\u5728\u68c0\u67e5 cron \u4efb\u52a1\u7684\u9000\u51fa\u4ee3\u7801\u65f6\uff0c\u4f1a\u62a5\u544a\u5907\u4efd\u6210\u529f\u3002\u78c1\u76d8\u4e0a\u786e\u5b9e\u6709\u4e00\u4e2a\u6709\u6548\u7684 <code>.gz<\/code> \u6587\u4ef6\uff0c\u4f46\u91cc\u9762\u5374\u662f\u4e00\u4e2a\u88ab\u622a\u65ad\u7684\u3001\u65e0\u7528\u7684 SQL \u6587\u4ef6\u3002\u76f4\u5230\u60a8\u5c1d\u8bd5\u8fdb\u884c\u5173\u952e\u6062\u590d\u65f6\uff0c\u624d\u4f1a\u53d1\u73b0\u8fd9\u4e00\u70b9\u3002<\/p>\n<h3>\u7f13\u89e3\u63aa\u65bd\uff08\u53ca\u5176\u5c40\u9650\u6027\uff09<\/h3>\n<p>\u5de5\u7a0b\u5e08\u901a\u5e38\u5c1d\u8bd5\u901a\u8fc7\u5728 Bash \u4e2d\u542f\u7528\u4e25\u683c\u7684\u9519\u8bef\u5904\u7406\u6765\u4fee\u8865\u6b64\u95ee\u9898\uff1a<\/p>\n<pre><code class=\"language-bash\">set -e\nset -o pipefail\n<\/code><\/pre>\n<p>\u867d\u7136 <code>set -o pipefail<\/code> \u786e\u4fdd\u4e86\u5982\u679c\u7ba1\u9053\u4e2d\u7684<em>\u4efb\u4f55<\/em>\u547d\u4ee4\u5931\u8d25\uff0c\u811a\u672c\u5c31\u4f1a\u5931\u8d25\uff0c\u4f46\u5b83\u4ecd\u7136\u8981\u6c42\u60a8\u56f4\u7ed5\u811a\u672c\u6784\u5efa\u5f3a\u5927\u7684\u8b66\u62a5\u3001\u65e5\u5fd7\u8bb0\u5f55\u548c\u91cd\u8bd5\u673a\u5236\u3002\u5f53\u77ac\u65f6\u7f51\u7edc\u9519\u8bef\u5728\u51cc\u6668 2:00 \u5bfc\u81f4\u5931\u8d25\u65f6\uff0cDIY \u811a\u672c\u53ea\u4f1a\u76f4\u63a5\u7ec8\u6b62\u3002\u800c\u4f01\u4e1a\u7ea7\u5e73\u53f0\u4f1a\u901a\u8fc7\u667a\u80fd\u7684\u6307\u6570\u9000\u907f\u91cd\u8bd5\u6765\u5904\u7406\u8fd9\u4e9b\u77ac\u65f6\u9519\u8bef\u3002<\/p>\n<h2>\u5371\u9669 2\uff1a\u6570\u636e\u4e00\u81f4\u6027\u4e0e\u9501\u5b9a\u5669\u68a6<\/h2>\n<p>DIY \u811a\u672c\u4e25\u91cd\u4f9d\u8d56\u903b\u8f91\u5907\u4efd (<code>mysqldump<\/code>, <code>pg_dump<\/code>)\u3002\u903b\u8f91\u5907\u4efd\u901a\u8fc7\u5728\u6240\u6709\u8868\u4e0a\u8fd0\u884c <code>SELECT<\/code> \u8bed\u53e5\u6765\u63d0\u53d6\u6570\u636e\u3002\u5728\u9ad8\u4e8b\u52a1\u6027\u7684\u751f\u4ea7\u6570\u636e\u5e93\u4e2d\uff0c\u6570\u636e\u5728\u4e0d\u65ad\u53d8\u5316\u3002\u5982\u679c\u811a\u672c\u9700\u8981 45 \u5206\u949f\u6765\u8f6c\u50a8\u4e00\u4e2a 100GB \u7684\u6570\u636e\u5e93\uff0c\u90a3\u4e48\u8f6c\u50a8\u5f00\u59cb\u65f6\u7684\u6570\u636e\u5c06\u6bd4\u7ed3\u675f\u65f6\u7684\u6570\u636e\u65e7 45 \u5206\u949f\uff0c\u8fd9\u8fdd\u53cd\u4e86 ACID \u5408\u89c4\u6027\u3002<\/p>\n<h3>MySQL \u4e8b\u52a1\u4e00\u81f4\u6027<\/h3>\n<p>\u8981\u5728 MySQL \u4e2d\u4f7f\u7528 InnoDB \u5b9e\u73b0\u4e00\u81f4\u6027\u5feb\u7167\uff0c\u5fc5\u987b\u4f20\u9012\u7279\u5b9a\u7684\u6807\u5fd7\uff1a<\/p>\n<pre><code class=\"language-bash\">mysqldump --single-transaction --quick --routines --events -u user -p db &gt; dump.sql\n<\/code><\/pre>\n<p><code>--single-transaction<\/code> \u6807\u5fd7\u5c06\u9694\u79bb\u7ea7\u522b\u8bbe\u7f6e\u4e3a <code>REPEATABLE READ<\/code>\uff0c\u5e76\u5728\u8f6c\u50a8\u524d\u542f\u52a8\u4e00\u4e2a\u4e8b\u52a1\u3002\u7136\u800c\uff0c\u5982\u679c\u60a8\u7684\u6570\u636e\u5e93\u4ecd\u5305\u542b\u65e7\u7684 MyISAM \u8868\uff0c\u6b64\u6807\u5fd7\u5c06\u65e0\u6cd5\u9632\u6b62\u5b83\u4eec\u88ab\u9501\u5b9a\uff0c\u53ef\u80fd\u4f1a\u5728\u5907\u4efd\u8fd0\u884c\u65f6\u505c\u6b62\u751f\u4ea7\u73af\u5883\u7684\u8bfb\u5199\u6d41\u91cf\u3002\u6b64\u5916\uff0c\u5f00\u53d1\u4eba\u5458\u5728\u5907\u4efd\u671f\u95f4\u6267\u884c\u7684\u4efb\u4f55 <code>ALTER TABLE<\/code>\u3001<code>DROP TABLE<\/code> \u6216 <code>RENAME TABLE<\/code> \u8bed\u53e5\u90fd\u4f1a\u7834\u574f <code>REPEATABLE READ<\/code> \u5feb\u7167\uff0c\u5bfc\u81f4\u8f6c\u50a8\u5931\u8d25\u3002<\/p>\n<h3>PostgreSQL \u4e0e WAL \u5f52\u6863<\/h3>\n<p>\u5bf9\u4e8e PostgreSQL\uff0c<code>pg_dump<\/code> \u63d0\u4f9b\u4e86\u4e00\u81f4\u7684\u903b\u8f91\u5907\u4efd\uff0c\u4f46\u4ec5\u9760\u903b\u8f91\u5907\u4efd\u65e0\u6cd5\u63d0\u4f9b\u65f6\u95f4\u70b9\u6062\u590d (PITR)\u3002\u5982\u679c\u60a8\u7684\u6570\u636e\u5e93\u5728\u4e0b\u5348 4:00 \u5d29\u6e83\uff0c\u800c\u4e0a\u4e00\u4e2a cron \u811a\u672c\u662f\u5728\u5348\u591c\u8fd0\u884c\u7684\uff0c\u60a8\u5c06\u4e22\u5931 16 \u5c0f\u65f6\u7684\u6570\u636e\u3002<\/p>\n<p>\u5b9e\u73b0 PITR \u9700\u8981\u6301\u7eed\u5f52\u6863\u9884\u5199\u65e5\u5fd7 (WAL)\u3002\u7f16\u5199\u4e00\u4e2a\u5b89\u5168\u5904\u7406 <code>archive_command<\/code> \u7684 DIY \u811a\u672c\u662f\u975e\u5e38\u56f0\u96be\u7684\u3002<\/p>\n<pre><code class=\"language-ini\"># postgresql.conf\nwal_level = replica\narchive_mode = on\narchive_command = 'test ! -f \/mnt\/wal_archive\/%f &amp;&amp; cp %p \/mnt\/wal_archive\/%f'\n<\/code><\/pre>\n<p>\u5982\u679c\u76ee\u6807\u5b58\u50a8 (<code>\/mnt\/wal_archive\/<\/code>) \u5df2\u6ee1\u6216\u4e0d\u53ef\u7528\uff0c<code>archive_command<\/code> \u5c06\u5931\u8d25\u3002PostgreSQL \u968f\u540e\u4f1a\u5728\u672c\u5730\u56e4\u79ef WAL \u6587\u4ef6\uff0c\u76f4\u5230\u4e3b\u78c1\u76d8\u586b\u6ee1\uff0c\u5bfc\u81f4\u6570\u636e\u5e93\u5b8c\u5168\u5b95\u673a\u3002DIY \u811a\u672c\u5f88\u5c11\u5177\u5907\u76d1\u63a7 WAL \u79ef\u7d2f\u5e76\u5728\u505c\u673a\u524d\u63d0\u9192\u7ba1\u7406\u5458\u6240\u9700\u7684\u9065\u6d4b\u529f\u80fd\u3002<\/p>\n<h2>\u5371\u9669 3\uff1a\u4fdd\u7559\u7b56\u7565\u7684\u8d4c\u535a<\/h2>\n<p>\u56de\u987e\u4e00\u4e0b\u6211\u4eec\u521d\u59cb\u811a\u672c\u4e2d\u7684\u4fdd\u7559\u547d\u4ee4\uff1a<\/p>\n<pre><code class=\"language-bash\">find $BACKUP_DIR -type f -name \"*.sql.gz\" -mtime +30 -exec rm {} ;\n<\/code><\/pre>\n<p>\u8fd9\u662f\u4e00\u4e2a\u968f\u65f6\u53ef\u80fd\u53d1\u751f\u7684\u707e\u96be\u6027\u6570\u636e\u4e22\u5931\u4e8b\u4ef6\u3002\u60f3\u8c61\u4e00\u4e0b\u914d\u7f6e\u66f4\u6539\u5bfc\u81f4 <code>mysqldump<\/code> \u8eab\u4efd\u9a8c\u8bc1\u5931\u8d25\u7684\u60c5\u51b5\u3002\u811a\u672c\u65e0\u6cd5\u521b\u5efa\u65b0\u5907\u4efd\uff0c\u4f46 <code>find<\/code> \u547d\u4ee4\u6bcf\u665a\u7ee7\u7eed\u8fd0\u884c\uff0c\u5c3d\u804c\u5c3d\u8d23\u5730\u5220\u9664 30 \u5929\u524d\u7684\u65e7\u6587\u4ef6\u3002<\/p>\n<p>\u5728\u5907\u4efd\u9759\u9ed8\u5931\u8d25 30 \u5929\u540e\uff0c<code>find<\/code> \u547d\u4ee4\u5c06\u5220\u9664\u60a8\u6700\u540e\u5269\u4e0b\u7684\u6709\u6548\u5907\u4efd\u3002\u73b0\u5728\uff0c\u60a8\u5c06\u6ca1\u6709\u4efb\u4f55\u5907\u4efd\u53ef\u7528\u3002<\/p>\n<p>\u50cf CloudSave \u8fd9\u6837\u7684\u4f01\u4e1a\u7ea7\u5907\u4efd\u8f6f\u4ef6\u4f7f\u7528\u6709\u72b6\u6001\u7684\u4fdd\u7559\u7b56\u7565\u3002\u5b83\u80fd\u591f\u533a\u5206\u201c\u5220\u9664 30 \u5929\u524d\u7684\u5907\u4efd\u201d\u548c\u201c\u786e\u4fdd\u5728\u4fee\u526a\u65e7\u6570\u636e\u4e4b\u524d\u81f3\u5c11\u5b58\u5728 30 \u4e2a\u6210\u529f\u7684\u6062\u590d\u70b9\u201d\u3002<\/p>\n<h2>\u5371\u9669 4\uff1a\u5b89\u5168\u3001\u52a0\u5bc6\u4e0e\u5408\u89c4\u76f2\u70b9<\/h2>\n<p>\u5728\u52d2\u7d22\u8f6f\u4ef6\u548c\u4e25\u683c\u5408\u89c4\u6846\u67b6\uff08GDPR\u3001HIPAA\u3001SOC 2\uff09\u65f6\u4ee3\uff0c\u5907\u4efd\u662f\u4e3b\u8981\u76ee\u6807\u3002DIY \u811a\u672c\u7ecf\u5e38\u8fdd\u53cd\u5b89\u5168\u6700\u4f73\u5b9e\u8df5\uff1a<\/p>\n<ol>\n<li><strong>\u786c\u7f16\u7801\u51ed\u636e\uff1a<\/strong> \u5c06\u6570\u636e\u5e93\u5bc6\u7801\u4ee5\u660e\u6587\u5f62\u5f0f\u5b58\u50a8\u5728\u811a\u672c\u6216 cron \u5b9a\u4e49\u4e2d\u662f\u4e00\u4e2a\u5de8\u5927\u7684\u5b89\u5168\u98ce\u9669\u3002\u867d\u7136 MySQL \u7684 <code>mysql_config_editor<\/code> \u6216 PostgreSQL \u7684 <code>.pgpass<\/code> \u6587\u4ef6\u7b49\u5de5\u5177\u53ef\u4ee5\u7f13\u89e3\u6b64\u95ee\u9898\uff0c\u4f46\u5b83\u4eec\u4ecd\u7136\u9700\u8981\u5728\u670d\u52a1\u5668\u4e0a\u7ba1\u7406\u672c\u5730\u5bc6\u94a5\u6587\u4ef6\u3002<\/li>\n<li><strong>\u7f3a\u4e4f\u9759\u6001\u52a0\u5bc6\uff1a<\/strong> \u5c06\u539f\u59cb SQL \u8f6c\u50a8\u5230\u78c1\u76d8\u4f1a\u4f7f\u654f\u611f\u7684 PII\/PHI \u6570\u636e\u66b4\u9732\u3002<\/li>\n<li><strong>\u590d\u6742\u7684\u52a0\u5bc6\u7ba1\u9053\uff1a<\/strong> \u5c1d\u8bd5\u4f7f\u7528 GPG \u5373\u65f6\u52a0\u5bc6\u5907\u4efd\u4f1a\u5f15\u5165\u4e25\u91cd\u7684 CPU \u5f00\u9500\u548c\u5bc6\u94a5\u7ba1\u7406\u590d\u6742\u6027\u3002<\/li>\n<\/ol>\n<pre><code class=\"language-bash\"># \u4e00\u4e2a DIY \u52a0\u5bc6\u5907\u4efd\u7ba1\u9053\npg_dump mydb | gzip | gpg --symmetric --cipher-algo AES256 --passphrase-file \/etc\/keys\/backup.key &gt; backup.sql.gz.gpg\n<\/code><\/pre>\n<p>\u5982\u679c\u670d\u52a1\u5668\u88ab\u5165\u4fb5\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u540c\u65f6\u8bbf\u95ee\u52a0\u5bc6\u5907\u4efd\u548c <code>\/etc\/keys\/backup.key<\/code> \u6587\u4ef6\uff0c\u4ece\u800c\u4f7f\u52a0\u5bc6\u5931\u6548\u3002\u6b64\u5916\uff0c\u5982\u679c\u751f\u6210 GPG \u5bc6\u94a5\u7684 DBA \u79bb\u804c\u4e14\u5bc6\u94a5\u4e22\u5931\uff0c\u5907\u4efd\u5c06\u65e0\u6cd5\u6062\u590d\u3002<\/p>\n<h2>\u5371\u9669 5\uff1aRTO \u7684\u73b0\u5b9e\u68c0\u9a8c\uff08\u6062\u590d\u6bd4\u5907\u4efd\u66f4\u96be\uff09<\/h2>\n<p>\u5907\u4efd\u7684\u7ec8\u6781\u6d4b\u8bd5\u662f\u6062\u590d\u3002DIY \u811a\u672c\u751f\u6210\u7684\u903b\u8f91\u5907\u4efd\u6062\u590d\u901f\u5ea6\u6781\u6162\u3002\u521b\u5efa\u4e00\u4e2a 500GB \u7684 SQL \u8f6c\u50a8\u53ef\u80fd\u9700\u8981 15 \u5206\u949f\uff0c\u4f46\u6062\u590d\u5b83\u9700\u8981\u6570\u636e\u5e93\u5f15\u64ce\u89e3\u6790 SQL\u3001\u91cd\u5efa\u7d22\u5f15\u5e76\u91cd\u65b0\u8ba1\u7b97\u7ea6\u675f\u3002\u8fd9\u53ef\u80fd\u9700\u8981\u6570\u5c0f\u65f6\u751a\u81f3\u6570\u5929\uff0c\u4ece\u800c\u5f7b\u5e95\u6467\u6bc1\u60a8\u7684 RTO\u3002<\/p>\n<p>\u5bf9\u4e8e\u5927\u578b\u751f\u4ea7\u6570\u636e\u5e93\uff0c\u7269\u7406\u5907\u4efd\uff08\u590d\u5236\u5b9e\u9645\u6570\u636e\u6587\u4ef6\uff09\u662f\u5f3a\u5236\u6027\u7684\u3002\u867d\u7136\u5b58\u5728 Percona XtraBackup \u6216 <code>pg_basebackup<\/code> \u7b49\u5de5\u5177\uff0c\u4f46\u5c06\u5b83\u4eec\u5305\u88c5\u5728 DIY Bash \u811a\u672c\u4e2d\u975e\u5e38\u590d\u6742\u3002\u60a8\u5fc5\u987b\u7ba1\u7406 LVM \u5feb\u7167\u3001\u5904\u7406\u6587\u4ef6\u7cfb\u7edf\u9759\u9ed8\uff0c\u5e76\u786e\u4fdd\u5907\u4efd\u5728\u4e0d\u5360\u7528\u7f51\u7edc\u63a5\u53e3\u7684\u60c5\u51b5\u4e0b\u4f20\u8f93\u5230\u5f02\u5730\u3002<\/p>\n<h3>LVM \u5feb\u7167\u9677\u9631<\/h3>\n<p>\u8bb8\u591a\u5de5\u7a0b\u5e08\u5c1d\u8bd5\u4f7f\u7528 LVM \u5feb\u7167\u8fdb\u884c\u201c\u96f6\u505c\u673a\u201d\u7269\u7406\u5907\u4efd\uff1a<\/p>\n<pre><code class=\"language-bash\"># \u521b\u5efa\u5feb\u7167\nlvcreate --size 20G --snapshot --name db_snap \/dev\/vg0\/db_vol\n\n# \u6302\u8f7d\u5e76\u590d\u5236\nmount \/dev\/vg0\/db_snap \/mnt\/snap\ntar -czf \/backups\/db_physical.tar.gz \/mnt\/snap\/mysql\n<\/code><\/pre>\n<p>\u5982\u679c\u6570\u636e\u5e93\u7ecf\u5386\u5199\u5165 I\/O \u7684\u7a81\u7136\u6fc0\u589e\uff0c20G \u7684 LVM \u5feb\u7167\u53ef\u80fd\u4f1a\u77ac\u95f4\u586b\u6ee1\u3002\u5f53 LVM \u5feb\u7167\u586b\u6ee1\u65f6\uff0c\u5b83\u5c06\u53d8\u5f97\u65e0\u6548\uff0c\u5907\u4efd\u4e5f\u4f1a\u5931\u8d25\u3002\u66f4\u7cdf\u7cd5\u7684\u662f\uff0c\u9ad8\u8d1f\u8f7d\u7684 LVM \u5feb\u7167\u4f1a\u4e25\u91cd\u964d\u4f4e\u4e3b\u6570\u636e\u5e93\u5377\u7684 I\/O \u6027\u80fd\uff0c\u5bfc\u81f4\u5e94\u7528\u7a0b\u5e8f\u5ef6\u8fdf\u6fc0\u589e\u3002<\/p>\n<h2>\u8fc7\u6e21\u5230\u4f01\u4e1a\u7ea7\u4fdd\u62a4<\/h2>\n<p>\u4ece DIY \u811a\u672c\u8fc7\u6e21\u5230\u4f01\u4e1a\u7ea7\u5e73\u53f0\u662f\u4efb\u4f55\u57fa\u7840\u8bbe\u65bd\u56e2\u961f\u6210\u719f\u7684\u5173\u952e\u91cc\u7a0b\u7891\u3002\u76ee\u6807\u662f\u4ece\u201c\u7948\u7977\u811a\u672c\u8fd0\u884c\u6210\u529f\u201d\u8f6c\u53d8\u4e3a\u62e5\u6709\u53ef\u6062\u590d\u6027\u7684\u52a0\u5bc6\u8bc1\u660e\u3002<\/p>\n<p>\u50cf CloudSave \u8fd9\u6837\u7684\u5e73\u53f0\u662f\u4e13\u95e8\u4e3a\u6d88\u9664 DIY \u811a\u672c\u7684\u76f2\u70b9\u800c\u8bbe\u8ba1\u7684\u3002\u901a\u8fc7\u90e8\u7f72\u5e94\u7528\u7a0b\u5e8f\u611f\u77e5\u4ee3\u7406\uff0cCloudSave \u76f4\u63a5\u4e0e\u6570\u636e\u5e93 API\uff08MySQL\u3001PostgreSQL\u3001MS SQL\u3001Oracle\uff09\u4ea4\u4e92\uff0c\u4ee5\u7f16\u6392\u4e00\u81f4\u7684\u7269\u7406\u548c\u903b\u8f91\u5907\u4efd\uff0c\u800c\u65e0\u9700\u9501\u5b9a\u8868\u6216\u964d\u4f4e\u6027\u80fd\u3002<\/p>\n<h3>\u6446\u8131\u811a\u672c\u7684\u5173\u952e\u4f18\u52bf\uff1a<\/h3>\n<ol>\n<li><strong>\u81ea\u52a8\u5316\u9a8c\u8bc1\uff1a<\/strong> \u73b0\u4ee3\u5e73\u53f0\u4e0d\u4ec5\u8fdb\u884c\u5907\u4efd\uff0c\u8fd8\u4f1a\u6d4b\u8bd5\u5b83\u4eec\u3002CloudSave \u53ef\u4ee5\u81ea\u52a8\u542f\u52a8\u4e00\u4e2a\u4e34\u65f6\u6570\u636e\u5e93\u5b9e\u4f8b\uff0c\u6062\u590d\u5907\u4efd\uff0c\u8fd0\u884c\u4e00\u81f4\u6027\u68c0\u67e5\uff08\u4f8b\u5982 <code>DBCC CHECKDB<\/code>\uff09\uff0c\u7136\u540e\u5c06\u5176\u9500\u6bc1\uff0c\u5e76\u63d0\u4f9b\u4e00\u4efd\u8bc1\u660e\u5907\u4efd\u786e\u5b9e\u53ef\u7528\u7684\u9a8c\u8bc1\u62a5\u544a\u3002<\/li>\n<li><strong>\u4e0d\u53ef\u53d8\u5b58\u50a8\uff1a<\/strong> \u4e3a\u4e86\u5bf9\u6297\u52d2\u7d22\u8f6f\u4ef6\uff0c\u5907\u4efd\u5fc5\u987b\u662f\u4e0d\u53ef\u53d8\u7684\u3002DIY \u811a\u672c\u65e0\u6cd5\u8f7b\u6613\u5199\u5165 WORM\uff08\u4e00\u6b21\u5199\u5165\uff0c\u591a\u6b21\u8bfb\u53d6\uff09\u5b58\u50a8\u3002\u4f01\u4e1a\u7ea7\u89e3\u51b3\u65b9\u6848\u539f\u751f\u96c6\u6210\u4e86 S3 \u5bf9\u8c61\u9501\u5b9a\u548c\u4e0d\u53ef\u53d8\u4e91\u5b58\u50a8\uff0c\u786e\u4fdd\u5373\u4f7f\u670d\u52a1\u5668\u88ab\u5b8c\u5168\u5165\u4fb5\uff0c\u653b\u51fb\u8005\u4e5f\u65e0\u6cd5\u5220\u9664\u6216\u52a0\u5bc6\u5907\u4efd\u3002<\/li>\n<li><strong>\u7b80\u5316\u7684 PITR\uff1a<\/strong> \u5e73\u53f0\u63d0\u4f9b\u4e86\u4e00\u4e2a\u53ef\u89c6\u5316\u65f6\u95f4\u8f74\uff0c\u800c\u4e0d\u662f\u4f7f\u7528\u590d\u6742\u7684 <code>recovery.conf<\/code> \u6216 <code>postgresql.auto.conf<\/code> \u53c2\u6570\u624b\u52a8\u62fc\u63a5\u57fa\u7840\u5907\u4efd\u548c\u6570\u767e\u4e2a WAL \u6587\u4ef6\u3002\u60a8\u53ea\u9700\u9009\u62e9\u60f3\u8981\u6062\u590d\u5230\u7684\u786e\u5207\u5206\u949f\uff0c\u8f6f\u4ef6\u5c31\u4f1a\u81ea\u52a8\u5904\u7406\u65e5\u5fd7\u91cd\u653e\u3002<\/li>\n<li><strong>\u53bb\u91cd\u4e0e\u538b\u7f29\uff1a<\/strong> DIY \u811a\u672c\u4f9d\u8d56 <code>gzip<\/code>\uff0c\u5b83\u5206\u522b\u538b\u7f29\u6bcf\u4e2a\u6587\u4ef6\u3002\u4f01\u4e1a\u7ea7\u5907\u4efd\u8f6f\u4ef6\u5229\u7528\u5168\u5c40\u5757\u7ea7\u53bb\u91cd\uff0c\u5728\u5c06\u5907\u4efd\u4f20\u8f93\u5230\u5f02\u5730\u65f6\uff0c\u6781\u5927\u5730\u964d\u4f4e\u4e86\u5b58\u50a8\u6210\u672c\u548c\u7f51\u7edc\u5e26\u5bbd\u3002<\/li>\n<\/ol>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u7f16\u5199\u4e00\u4e2a\u81ea\u5b9a\u4e49 Bash \u811a\u672c\u6765\u5907\u4efd\u6570\u636e\u5e93\u5f88\u5bb9\u6613\u3002\u4f46\u7f16\u5199\u4e00\u4e2a\u80fd\u591f\u5904\u7406\u9759\u9ed8\u7ba1\u9053\u5931\u8d25\u3001\u4fdd\u8bc1 ACID \u4e00\u81f4\u6027\u3001\u5b89\u5168\u7ba1\u7406\u52a0\u5bc6\u5bc6\u94a5\u3001\u9632\u6b62\u57fa\u4e8e\u4fdd\u7559\u7b56\u7565\u7684\u6570\u636e\u4e22\u5931\uff0c\u5e76\u4fdd\u8bc1\u4e25\u683c RTO\/RPO SLA \u7684\u811a\u672c\u51e0\u4e4e\u662f\u4e0d\u53ef\u80fd\u7684\u3002<\/p>\n<p>\u5728\u751f\u4ea7\u73af\u5883\u4e2d\uff0c\u6570\u636e\u5e93\u662f\u4f01\u4e1a\u6700\u5173\u952e\u7684\u8d44\u4ea7\u3002\u5c06\u5176\u4fdd\u62a4\u89c6\u4e3a\u7531\u51e0\u767e\u884c Shell \u811a\u672c\u7ef4\u62a4\u7684\u526f\u4e1a\uff0c\u662f\u4efb\u4f55\u4f01\u4e1a\u90fd\u65e0\u6cd5\u627f\u62c5\u7684\u98ce\u9669\u3002\u901a\u8fc7\u5ba1\u8ba1\u5f53\u524d\u7684\u5907\u4efd\u7b56\u7565\u3001\u4e86\u89e3\u903b\u8f91\u8f6c\u50a8\u7684\u5c40\u9650\u6027\uff0c\u5e76\u8fc1\u79fb\u5230\u50cf CloudSave \u8fd9\u6837\u7a33\u5065\u7684\u81ea\u52a8\u5316\u5e73\u53f0\uff0cDevOps \u548c DBA \u56e2\u961f\u53ef\u4ee5\u6d88\u9664\u81ea\u5b9a\u4e49\u811a\u672c\u5e26\u6765\u7684\u201c\u5df4\u58eb\u7cfb\u6570\u201d\u98ce\u9669\uff0c\u786e\u4fdd\u6570\u636e\u771f\u6b63\u5177\u6709\u5f39\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>** Discover the hidden dangers of DIY database backup scripts. 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