[zh]Update content/zh/examples/application/mysql/mysql-statefulset.yaml

[zh]Update content/zh/examples/application/mysql/mysql-statefulset.yaml Update content/zh/examples/application/mysql/mysql-statefulset.yaml Co-authored-by: Qiming Teng <tengqm@outlook.com> Update content/zh/examples/application/mysql/mysql-statefulset.yaml Co-authored-by: Qiming Teng <tengqm@outlook.com> Update content/zh/examples/application/mysql/mysql-statefulset.yaml Co-authored-by: Qiming Teng <tengqm@outlook.com> Update content/zh/examples/application/mysql/mysql-statefulset.yaml Co-authored-by: Qiming Teng <tengqm@outlook.com> Update content/zh/examples/application/mysql/mysql-statefulset.yaml Co-authored-by: Qiming Teng <tengqm@outlook.com> Update content/zh/examples/application/mysql/mysql-statefulset.yaml Co-authored-by: Qiming Teng <tengqm@outlook.com> Update content/zh/examples/application/mysql/mysql-statefulset.yaml Co-authored-by: Qiming Teng <tengqm@outlook.com> Update content/zh/examples/application/mysql/mysql-statefulset.yaml Co-authored-by: Qiming Teng <tengqm@outlook.com> Update content/zh/examples/application/mysql/mysql-statefulset.yaml Co-authored-by: Qiming Teng <tengqm@outlook.com> Update content/zh/examples/application/mysql/mysql-statefulset.yaml Co-authored-by: Qiming Teng <tengqm@outlook.com> Update content/zh/examples/application/mysql/mysql-statefulset.yaml Co-authored-by: Qiming Teng <tengqm@outlook.com>
2022-04-27 06:10:35 +08:00
parent 6b15373d61
commit c88343d6b5
1 changed files with 18 additions and 17 deletions
@@ -21,17 +21,18 @@ spec:
        - "-c"
        - |
          set -ex
-          # Generate mysql server-id from pod ordinal index.
+          # 基于 Pod 序号生成 MySQL 服务器的 ID。
          [[ `hostname` =~ -([0-9]+)$ ]] || exit 1
          ordinal=${BASH_REMATCH[1]}
          echo [mysqld] > /mnt/conf.d/server-id.cnf
-          # Add an offset to avoid reserved server-id=0 value.
+          # 添加偏移量以避免使用 server-id=0 这一保留值。
          echo server-id=$((100 + $ordinal)) >> /mnt/conf.d/server-id.cnf
          # Copy appropriate conf.d files from config-map to emptyDir.
+          # 将合适的 conf.d 文件从 config-map 复制到 emptyDir。
          if [[ $ordinal -eq 0 ]]; then
-            cp /mnt/config-map/master.cnf /mnt/conf.d/
+            cp /mnt/config-map/primary.cnf /mnt/conf.d/
          else
-            cp /mnt/config-map/slave.cnf /mnt/conf.d/
+            cp /mnt/config-map/replica.cnf /mnt/conf.d/
          fi
        volumeMounts:
        - name: conf
@@ -45,15 +46,15 @@ spec:
        - "-c"
        - |
          set -ex
-          # Skip the clone if data already exists.
+          # 如果已有数据，则跳过克隆。
          [[ -d /var/lib/mysql/mysql ]] && exit 0
-          # Skip the clone on master (ordinal index 0).
+          # 跳过主实例（序号索引 0）的克隆。
          [[ `hostname` =~ -([0-9]+)$ ]] || exit 1
          ordinal=${BASH_REMATCH[1]}
          [[ $ordinal -eq 0 ]] && exit 0
-          # Clone data from previous peer.
+          # 从原来的对等节点克隆数据。
          ncat --recv-only mysql-$(($ordinal-1)).mysql 3307 | xbstream -x -C /var/lib/mysql
-          # Prepare the backup.
+          # 准备备份。
          xtrabackup --prepare --target-dir=/var/lib/mysql
        volumeMounts:
        - name: data
@@ -88,7 +89,7 @@ spec:
          timeoutSeconds: 5
        readinessProbe:
          exec:
-            # Check we can execute queries over TCP (skip-networking is off).
+            # 检查我们是否可以通过 TCP 执行查询（skip-networking 是关闭的）。
            command: ["mysql", "-h", "127.0.0.1", "-e", "SELECT 1"]
          initialDelaySeconds: 5
          periodSeconds: 2
@@ -105,22 +106,22 @@ spec:
          set -ex
          cd /var/lib/mysql

-          # Determine binlog position of cloned data, if any.
+          # 确定克隆数据的 binlog 位置（如果有的话）。
          if [[ -f xtrabackup_slave_info && "x$(<xtrabackup_slave_info)" != "x" ]]; then
-            # XtraBackup already generated a partial "CHANGE MASTER TO" query
-            # because we're cloning from an existing slave. (Need to remove the tailing semicolon!)
+            # XtraBackup 已经生成了部分的 “CHANGE MASTER TO” 查询
+            # 因为我们从一个现有副本进行克隆。(需要删除末尾的分号!)
            cat xtrabackup_slave_info | sed -E 's/;$//g' > change_master_to.sql.in
-            # Ignore xtrabackup_binlog_info in this case (it's useless).
+            # 在这里要忽略 xtrabackup_binlog_info （它是没用的）。
            rm -f xtrabackup_slave_info xtrabackup_binlog_info
          elif [[ -f xtrabackup_binlog_info ]]; then
-            # We're cloning directly from master. Parse binlog position.
+            # 我们直接从主实例进行克隆。解析 binlog 位置。
            [[ `cat xtrabackup_binlog_info` =~ ^(.*?)[[:space:]]+(.*?)$ ]] || exit 1
            rm -f xtrabackup_binlog_info xtrabackup_slave_info
            echo "CHANGE MASTER TO MASTER_LOG_FILE='${BASH_REMATCH[1]}',\
                  MASTER_LOG_POS=${BASH_REMATCH[2]}" > change_master_to.sql.in
          fi

-          # Check if we need to complete a clone by starting replication.
+          # 检查我们是否需要通过启动复制来完成克隆。
          if [[ -f change_master_to.sql.in ]]; then
            echo "Waiting for mysqld to be ready (accepting connections)"
            until mysql -h 127.0.0.1 -e "SELECT 1"; do sleep 1; done
@@ -133,11 +134,11 @@ spec:
                          MASTER_PASSWORD='', \
                          MASTER_CONNECT_RETRY=10; \
                        START SLAVE;" || exit 1
-            # In case of container restart, attempt this at-most-once.
+            # 如果容器重新启动，最多尝试一次。
            mv change_master_to.sql.in change_master_to.sql.orig
          fi

-          # Start a server to send backups when requested by peers.
+          # 当对等点请求时，启动服务器发送备份。
          exec ncat --listen --keep-open --send-only --max-conns=1 3307 -c \
            "xtrabackup --backup --slave-info --stream=xbstream --host=127.0.0.1 --user=root"
        volumeMounts: