监控备份

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本页面介绍如何监控 Cassandra 备份。监控备份的方法与 Cloud Storage 中的备份以及远程服务器的备份是相同的。

您可以通过查看负责创建备份的 apigee-cassandra-backup Cron 作业的详细信息来监控备份。在 Kubernetes 集群上使用 kubectl 命令来查看 Cron 作业的状态。

以下示例展示了 kubectl 命令的用法。

• 检查 Cron 作业的状态：

  kubectl get  cronjobs -n apigee

  NAME                      SCHEDULE     SUSPEND   ACTIVE   LAST SCHEDULE   AGE
  apigee-cassandra-backup   11 * * * *   False     0        9m27s           32m

• 检查备份作业的状态：

  kubectl get jobs -n apigee |grep apigee-cassandra-backup

  apigee-cassandra-backup-1637176260                1/1           79s        9m3s

  kubectl get pods -n apigee | grep backup

  apigee-cassandra-backup-1637176260-vj5cg          0/1     Completed   0          7m49s

• 检查备份日志：

  kubectl logs  -n apigee $(kubectl get pods -n apigee |grep apigee-cassandra-backup |awk '{print $1}')
  

  如果备份成功，您将看到类似于以下内容的输出：

  starting apigee-cassandra-default-0 in apigee
  snapshot pid 25 started for pod apigee-cassandra-default-0 in namespace apigee
  starting apigee-cassandra-default-1 in apigee
  snapshot pid 36 started for pod apigee-cassandra-default-1 in namespace apigee
  starting apigee-cassandra-default-2 in apigee
  snapshot pid 48 started for pod apigee-cassandra-default-2 in namespace apigee
   25 36 48
  waiting on process 25
  INFO: removing old cassandra snapshots
  INFO: removing old cassandra snapshots
  INFO: removing old cassandra snapshots
  Requested clearing snapshot(s) for [all keyspaces]
  Requested clearing snapshot(s) for [all keyspaces]
  Requested clearing snapshot(s) for [all keyspaces]
  
  .
  .
  .
  Operation completed over 1 objects.
  INFO: backup created tarball and transferred the file to gs://<bucket name>
  INFO: removing cassandra snapshot
  Requested clearing snapshot(s) for [all keyspaces]
  INFO: completed upload for 20211117191141
  finished backup

查看备份日志

备份作业：

• 创建 schema.cql 文件。
• 将它上传到您的存储桶。
• 回应节点以同时备份数据和上传数据。
• 等待所有数据上传完毕。

如需查看 Kubernetes pod 的备份日志，请运行 kubectl logs -f <pod_name> -n <namespace> 命令。例如：

kubectl logs -f apigee-cassandra-backup-1.6451.680-pff6s -n apigee

输出类似于以下内容：

myusername-macbookpro:cassandra-backup-utility myusername$ kubectl logs -f apigee-cassandra-backup-1.64577680-f9sc4
starting apigee-cassandra-default-0 in default
starting apigee-cassandra-default-1 in default
starting apigee-cassandra-default-2 in default
35 46 57
waiting on process  35
Activated service account credentials for: [[e-mail]]
Activated service account credentials for: [[e-mail]]
Activated service account credentials for: [[e-mail]]
Requested creating snapshot(s) for [all keyspaces] with snapshot name [20190406190808] and options {skipFlush=false}
Snapshot directory: 20190406190808
INFO: backup created cassandra snapshot 20190406190808
tar: Removing leading `/' from member names
/apigee/data/cassandra/data/ks1/mytest3-37bc2df0587811e98e8d875b0ed64754/snapshots/
/apigee/data/cassandra/data/ks1/mytest3-37bc2df0587811e98e8d875b0ed64754/snapshots/20190406190808/
/apigee/data/cassandra/data/ks1/mytest3-37bc2df0587811e98e8d875b0ed64754/snapshots/20190406190808/mc-1-big-Data.db
Requested creating snapshot(s) for [all keyspaces] with snapshot name [20190406190808] and options {skipFlush=false}
Requested creating snapshot(s) for [all keyspaces] with snapshot name [20190406190808] and options {skipFlush=false}
Snapshot directory: 20190406190808
INFO: backup created cassandra snapshot 20190406190808
tar: Removing leading `/' from member names
/apigee/data/cassandra/data/system/hints-2666e20573ef38b390fefecf96e8f0c7/snapshots/
/apigee/data/cassandra/data/system/hints-2666e20573ef38b390fefecf96e8f0c7/snapshots/20190406190808/
/apigee/data/cassandra/data/system/hints-2666e20573ef38b390fefecf96e8f0c7/snapshots/20190406190808/manifest.json
/apigee/data/cassandra/data/system/prepared_statements-18a9c2576a0c3841ba718cd529849fef/snapshots/
/apigee/data/cassandra/data/system/prepared_statements-18a9c2576a0c3841ba718cd529849fef/snapshots/20190406190808/
/apigee/data/cassandra/data/system/prepared_statements-18a9c2576a0c3841ba718cd529849fef/snapshots/20190406190808/manifest.json
/apigee/data/cassandra/data/system/range_xfers-55d764384e553f8b9f6e676d4af3976d/snapshots/
/apigee/data/cassandra/data/system/range_xfers-55d764384e553f8b9f6e676d4af3976d/snapshots/20190406190808/
/apigee/data/cassandra/data/system/range_xfers-55d764384e553f8b9f6e676d4af3976d/snapshots/20190406190808/manifest.json
/apigee/data/cassandra/data/system/peer_events-59dfeaea8db2334191ef109974d81484/snapshots/
/apigee/data/cassandra/data/system/peer_events-59dfeaea8db2334191ef109974d81484/snapshots/20190406190808/
/apigee/data/cassandra/data/system/peer_events-59dfeaea8db2334191ef109974d81484/snapshots/20190406190808/manifest.json
/apigee/data/cassandra/data/system/built_views-4b3c50a9ea873d7691016dbc9c38494a/snapshots/
/apigee/data/cassandra/data/system/built_views-4b3c50a9ea873d7691016dbc9c38494a/snapshots/20190406190808/
/apigee/data/cassandra/data/system/built_views-4b3c50a9ea873d7691016dbc9c38494a/snapshots/20190406190808/manifest.json
……
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/20190406190808/
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/20190406190808/mc-3-big-Filter.db
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/20190406190808/mc-2-big-CompressionInfo.db
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/20190406190808/mc-2-big-Index.db
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/20190406190808/mc-3-big-Statistics.db
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/20190406190808/mc-2-big-Data.db
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/20190406190808/mc-1-big-Index.db
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/20190406190808/mc-1-big-Statistics.db
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/20190406190808/mc-2-big-TOC.txt
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/20190406190808/mc-2-big-Statistics.db
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/20190406190808/mc-1-big-Summary.db
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/20190406190808/mc-1-big-Filter.db
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/20190406190808/mc-2-big-Summary.db
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/20190406190808/mc-3-big-Index.db
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/20190406190808/manifest.json
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/20190406190808/mc-2-big-Filter.db
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/20190406190808/mc-2-big-Digest.crc32
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/20190406190808/mc-3-big-Summary.db
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/20190406190808/mc-3-big-Data.db
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/20190406190808/mc-1-big-TOC.txt
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/20190406190808/schema.cql
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/20190406190808/mc-3-big-CompressionInfo.db
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/20190406190808/mc-1-big-Digest.crc32
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/20190406190808/mc-3-big-TOC.txt
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/20190406190808/mc-1-big-Data.db
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/20190406190808/mc-3-big-Digest.crc32
/apigee/data/cassandra/data/ks2/user-d6d39d70586311e98e8d875b0ed64754/snapshots/20190406190808/mc-1-big-CompressionInfo.db
……
/tmp/tokens.txt
/ [1 files][    0.0 B/    0.0 B]
Operation completed over 1 objects.
/ [1 files][    0.0 B/    0.0 B]
Operation completed over 1 objects.
INFO: backup created tarball and transferred the file to gs://gce-myusername-apigee-cassandra-backup/apigeecluster/dc-1
INFO: removing cassandra snapshot
INFO: backup created tarball and transferred the file to gs://gce-myusername-apigee-cassandra-backup/apigeecluster/dc-1
INFO: removing cassandra snapshot
Requested clearing snapshot(s) for [all keyspaces]
INFO: Backup 20190406190808 completed
waiting on process  46
Requested clearing snapshot(s) for [all keyspaces]
INFO: Backup 20190406190808 completed
Requested clearing snapshot(s) for [all keyspaces]
waiting on process  57
INFO: Backup 20190406190808 completed
waiting result
to get schema from 10.32.0.28
INFO: /tmp/schema.cql has been generated
Activated service account credentials for: [[e-mail]]
tar: removing leading '/' from member names
tmp/schema.cql
Copying from <TDIN>...
/ [1 files][    0.0 B/    0.0 B]
Operation completed over 1 objects.
INFO: backup created tarball and transferred the file to gs://gce-myusername-apigee-cassandra-backup/apigeecluster/dc-1
finished uploading schema.cql