Avamar：客户端在 Avamar 源 IB/RLCE 上停用后进行垃圾收集MSG_ERR_DDR_ERROR

Summary: 如果已停用客户端的复制策略或保留锁定期内缺少 /MC_RETIRED，则 8 天后 Avamar 目标上的垃圾收集将失败。

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Symptoms

此行为出现在以下配置和情形中：

  • 启用了不可变备份的 Avamar 源 （IB）
  • 启用了不可变备份的 Avamar 目标 （IB）
  • 已启用保留锁定合规性模式 （RLCE） 的 Data Domain 源
  • 已启用保留锁定合规性模式 （RLCE） 的 Data Domain 目标

复制策略配置不包括 /MC_RETIRED 域。

admin@av-target:~/usr/local/avamar/var/ddrmaintlogs$ view ddrmaint.log
...
2024-09-29T06:14:35.625021-07:00 av-target ddrmaint.bin[4202]: Error: gc-finish::process_all_backups: Failed to delete empty client dir 'cur/51e83a682d09d64199cf00469262db1b07f5ef04' on ddr, client '/MC_DELETED/prod-fs-20240921_190514', rename to 'cur/DELETED/1727740800/51e83a682d09d64199cf00469262db1b07f5ef04_E0F1E861F424A74A6A31B8B4963A4CB036ACC77D', ddr result code: 5034, desc: the user has insufficient privilege
2024-09-29T06:14:35.625126-07:00 av-target ddrmaint.bin[4202]: Warning: gc-finish::process_all_cids - Failed to process backups in client dir '51e83a682d09d64199cf00469262db1b07f5ef04' for client '/MC_DELETED/prod-fs-20240921_190514'
admin@av-target:~/usr/local/avamar/var/ddrmaintlogs$

在 Avamar 源服务器中，有一个客户端，其中包含以下信息：

CID: 51e83a682d09d64199cf00469262db1b07f5ef04
Client hostname: /clients/Windows/prod-fs

9 月 21 日，此客户端已停用。客户端已移至 /MC_RETIRED/prod-fs2024.09.21.01.23.45。

在同一天，重新添加了此客户端，创建了新的客户端 ID （CID） 并使用相同的客户端主机名：

CID: 4140cb8f428aa413154139b186fdcaafa19eb04e
Client hostname: /clients/Windows/prod-fs

复制策略不包含 /MC_RETIRED，并且发生了复制。

在 Avamar 目标 （av-target） 上，显示 /usr/local/avamar/var/ddrmaintlogs/ddrmaint.log ddrmaint move-backup 命令执行此操作：

admin@av-target:~/usr/local/avamar/var/ddrmaintlogs$ view ddrmaint.log
....
2024-09-21T12:05:22.483376-07:00 av-target ddrmaint.bin[14757]: Info: move-backup cmdline: '/usr/local/avamar/bin/ddrmaint.bin --flagfile=/usr/local/avamar/etc/usersettings.cfg --server=av-target --vardir=/usr/local/avamar/var --bindir=/usr/local/avamar/bin --id=root --password=**************** --vardir=/usr/local/avamar/var --bindir=/usr/local/avamar/bin --sysdir=/usr/local/avamar/etc move-backup --source-client=51e83a682d09d64199cf00469262db1b07f5ef04 --target-client=4140cb8f428aa413154139b186fdcaafa19eb04e --backups=0x1db0aed1ab804ea:2 --dpnid=1234567890'
2024-09-21T12:05:23.604561-07:00 av-target ddrmaint.bin[14757]: Info: RL: As the DD is in Compliance Enabled mode move-backup::movebackups will be copy-backup with no retention on ddr index(2) from cur/51e83a682d09d64199cf00469262db1b07f5ef04/1DB0AED1AB804EA to cur/4140cb8f428aa413154139b186fdcaafa19eb04e/1DB0AED1AB804EA
2024-09-21T12:05:24.610402-07:00 av-target ddrmaint.bin[14757]: Info: move-backup Successfully copied (for move) client backup cur/51e83a682d09d64199cf00469262db1b07f5ef04/1DB0AED1AB804EA:2 to cur/4140cb8f428aa413154139b186fdcaafa19eb04e/1DB0AED1AB804EA:2.
...
admin@av-target:~/usr/local/avamar/var/ddrmaintlogs$

6 天后（9 月 27 日）到 9 月 29 日，有消息指出 GSAN 上不再存在旧 CID 的备份：

admin@av-target:~/usr/local/avamar/var/ddrmaintlogs$ view ddrmaint.log
...
2024-09-27T06:21:50.895312-07:00 av-target ddrmaint.bin[8923]: Info: gc-finish::process_all_backups: Backup '1DB0A201463FE64' not on gsan, deleted on ddr, client dir '51e83a682d09d64199cf00469262db1b07f5ef04', client '/MC_DELETED/prod-fs-20240921_190514'
2024-09-27T06:21:50.910186-07:00 av-target ddrmaint.bin[8923]: Info: gc-finish::process_all_backups: Backup '1DB0A22594F1476' not on gsan, deleted on ddr, client dir '51e83a682d09d64199cf00469262db1b07f5ef04', client '/MC_DELETED/prod-fs-20240921_190514'
2024-09-28T06:19:59.618801-07:00 av-target ddrmaint.bin[27334]: Info: gc-finish::process_all_backups: Backup '1DB0AE8A240B1AA' not on gsan, deleted on ddr, client dir '51e83a682d09d64199cf00469262db1b07f5ef04', client '/MC_DELETED/prod-fs-20240921_190514'
2024-09-28T06:19:59.631409-07:00 av-target ddrmaint.bin[27334]: Info: gc-finish::process_all_backups: Backup '1DB0AED1AB804EA' not on gsan, deleted on ddr, client dir '51e83a682d09d64199cf00469262db1b07f5ef04', client '/MC_DELETED/prod-fs-20240921_190514'
...
admin@av-target:~/usr/local/avamar/var/ddrmaintlogs$

8 天后，错误消息”Failed to delete empty client dir“出现：

Cause

在以下情况下出现垃圾数据收集 （GC） 故障问题： clientA_with_cid-1 已停用并重新添加为 clientA_with_cid-2。在复制过程中，复制器为 clientA_with_cid-2 在目标上，从中复制旧备份 clientA_with_cid-1 重定向到 clientA_with_cid-2。GC 进程尝试删除锁定的文件，导致错误，因为保留锁定会阻止在保留期到期之前删除文件。

当目标处的垃圾数据收集 （GC） 进程无法在 clientA_with_cid-1 目录路径。GC 进程尝试删除锁定的文件，导致错误，因为保留锁定会阻止在保留期到期之前删除文件。此冗余和无法删除孤立拷贝导致 GC 故障。

Resolution

应用以下热修复程序：

  • 19.10.0.166: 338891
  • 19.12.0.186: 338894

Affected Products

Avamar Server

Products

Avamar
Article Properties
Article Number: 000241766
Article Type: Solution
Last Modified: 02 Jul 2025
Version:  3
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