NetWorker：Sybase 数据库备份在完成阶段启动但失败

Summary: Sybase 数据库备份在完成阶段开始但失败。

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Symptoms

Sybase 数据库备份在完成阶段开始但失败。
错误：

D00：SYBMULTBUF 错误：仿真器间通信失败，错误状态 = 9，错误代码=0，系统消息=管道 I/O 返回 0 字节。
打开服务器错误：16248.10.0: srv_select（） 中的错误 — 文件描述符 12 不再处于活动状态。
  
Backup Server: 4.194.2.1: Internal error. The srv_select() function was called to complete an I/O for 2240 bytes. After retrying 2241 times only 0 bytes have been read.
Backup Server: 4.141.2.75: [0] The 'read' call failed for database/archive device while working on stripe device 'nsrsyb::..4.1./nsr/apps/tmp/sybtmp_1014766.txt::000' with error number 0 (Success). Refer to your operating system documentation for further details.
Backup Server Internal Error: 4.62.3.1: Multibuffering subprocesses died, archive nsrsyb..4.1./nsr/apps/tmp/sybtmp_1014766.txt::000.
Backup Server: 4.141.2.66: [0] The 'write' call failed for database/archive device while working on stripe device 'nsrsyb::..4.1./nsr/apps/tmp/sybtmp_1014766.txt::000' with error number 32 (Broken pipe). Refer to your operating system documentation for further details.
Backup Server Internal Error: 4.62.3.8: Multibuffering subprocesses died, archive nsrsyb:..4.1./nsr/apps/tmp/sybtmp_1014766.txt::000.

sybmultbuf 崩溃
sybmultbuf 堆栈： 
Backup Server: 4.188.1.1: Database : 267710850 kilobytes (89%) DUMPED.
Backup Server: 3.43.1.1: Dump phase number 1 completed.
Backup Server: 3.43.1.1: Dump phase number 2 completed.
Backup Server: 3.43.1.1: Dump phase number 3 completed.
Backup Server: 4.188.1.1: Database : 268552362 kilobytes (100%) DUMPED.
A00: SYBMULTBUF: bs_trap; process received signal 11
A00: 0x7f6a508bcad0 : (killpg+0x40) [0x7f6a508bcad0]
A00: 0x7f6a50c3da74 : (__pthread_mutex_lock+0x4) [0x7f6a50c3da74]
A00: 0x7f6a5038d352 : (lg_atomic_decrement+0x22) [0x7f6a5038d352]
A00: 0x7f6a50289dc0 : (nw_ddcl_disconnect+0xa0) [0x7f6a50289dc0]
A00: 0x7f6a501e2302 : (xdup_ddinfo_ext+0x1a2) [0x7f6a501e2302]
A00: 0x7f6a501e257e : (dd_wrapper_fini+0x8e) [0x7f6a501e257e]
A00: 0x7f6a501e26b3 : (dd_cleanup+0x23) [0x7f6a501e26b3]
A00: 0x7f6a503a5210 : (lg_atexit_execute_and_remove_all+0x70) [0x7f6a503a5210]
A00: 0x7f6a50144a8e : (syb_close+0x12e) [0x7f6a50144a8e]
A00: 0x44da4f : (api_close+0x20f) [0x44da4f]
A00: 0x4293a2 : (ctl_job+0x39c) [0x4293a2]
A00: 0x425fe8 : (archive_proc+0x593) [0x425fe8]
A00: 0x42526a : (sybmbuf_main+0x66e) [0x42526a]
A00: 0x424bfa : (main+0x1b) [0x424bfa]
A00: 0x7f6a508a8ca3 : (__libc_start_main+0xf3) [0x7f6a508a8ca3]
A00: 0x424b09 : (_start+0x29) [0x424b09]

Cause

这是一个代码缺陷，会影响直接与 libDDBoost/DDR 通信的所有进程或客户端。

Resolution

此问题已在 NetWorker 19.7.0.4 和 NetWorker 19.8.0.1 及更高版本中得到修复。

Additional Information

环境：
Red Hat 8.6
NetWorker/NMDA 19.7.0.1
NetWorker 部署在 AWS 环境中。



Affected Products

NetWorker

Products

NetWorker Series
Article Properties
Article Number: 000208972
Article Type: Solution
Last Modified: 05 Jun 2023
Version:  3
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