NetWorker：Sybaseデータベースのバックアップが開始されるが、完了フェーズ中に失敗する

Summary: Sybaseデータベースのバックアップが開始されますが、完了フェーズ中に失敗します。

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Symptoms

Sybaseデータベースのバックアップが開始されますが、完了フェーズ中に失敗します。
エラー:

D00: SYBMULTBUFエラー: エミュレーターのプロセス間通信がエラー状態= 9で失敗し、エラー コード=0、システム メッセージ=パイプI/Oが0バイト返されました。
Open Server Error: 16248.10.0: srv_select() - ファイル ディスクリプタ12のエラーがアクティブでなくなりました。
  
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がsybmultbuf
のスタックをクラッシュする: 
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

これは、 libDDBoost/DDRと直接通信するすべてのプロセスまたはクライアントに影響を与えるコードの欠陥です。

Resolution

この問題は、NetWorker 19.7.0.4およびNetWorker 19.8.0.1以降で修正されています。

Additional Information

環境: 
Red Hat 8.6
NetWorker/NMDA 19.7.0.1
NetWorkerはAWS環境に導入されます。



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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