AD内で一部のSIDが見つかりません。解決できません

**[ 5728] FAILURE: Timed out waiting for a LSA connection after 5 seconds

[  5728] Unable to make a connection (LSA:XX.XXX.XXXXX.COM), result: 7015

[  5732] Could not find Windows SID'S-1-5-21-XXXXXXX-XXXXXXXX-XXXXXXXX-XXXXXXXXX'

• SecDログには、次のような多くのエラーが表示されます。

[kern_secd:info:9554] .------------------------------------------------------------------------------.
[kern_secd:info:9554] |                                 RPC FAILURE:                                 |
[kern_secd:info:9554] |                      secd_rpc_auth_get_creds has failed                      |
[kern_secd:info:9554] |                        Result = 0, RPC Result = 6909                         |
[kern_secd:info:9554] |                   RPC received at Sat Nov  5 15:45:01 2022                   |
[kern_secd:info:9554] |------------------------------------------------------------------------------'
[kern_secd:info:9554] Failure Summary:
[kern_secd:info:9554] Error: Get user credentials procedure failed
[kern_secd:info:9554]   [ 50 ms] Using a cached connection to XXXXXXX.XX.XX.XXXXX.com
[kern_secd:info:9554]   [   105] Could not find Windows SID 'S-1-5-21-XXXXXXXX-XXXXXXXX-XXXXXXXX-XXXXXXXX'
[kern_secd:info:9554] **[   105] FAILURE: Unexpected state: Error 6909 at file:src/utils/secd_cifs_utils.cpp func:lookupSid line:561
[kern_secd:info:9554] **[   106] FAILURE: Error case not correctly journaled
[kern_secd:info:9554] Details:

• Sktraceログには、次のような多くのエラーが表示されます。

2022-11-10T15:45:35Z 316493109266443      [4:0] NBLADE_Chk:  n0xb5888a: src/Protocols/Cifs/Support/Smb2Utils.cpp:1249 rt=7303
2022-11-10T15:45:35Z 316493109270220      [4:0] NBLADE_Chk:  n0xb50aea: src/Protocols/Cifs/SmbRequests/Smb2SetInfoCmd.cpp:745 rt=7303
2022-11-10T15:45:35Z 316493109271894      [4:0] NBLADE_Chk:  n0xb4e047: src/Protocols/Cifs/SmbRequests/Smb2SetInfoCmd.cpp:243 rt=7303

• また、特定のEMSログエントリが表示された場合、要求数によってドメインコントローラが過負荷になる可能性があります。

|                                 RPC FAILURE:                                 |
|                      secd_rpc_auth_get_creds has failed                      |
|                        Result = 0, RPC Result = 7015                         |
|                   RPC received at Wed Nov  9 15:16:25 2022                   |
|------------------------------------------------------------------------------
Failure Summary:
Error: Get user credentials procedure failed
**[  5487] FAILURE: Timed out waiting for a LSA connection after 5 seconds
   [  5487] Unable to make a connection (LSA:XXXXXXX.XX.XX.XXXXX.com), result: 7015
   [  5491] Could not find Windows SID 'S-1-5-21-XXXXXXXX-XXXXXXXX-XXXXXXXX-XXXXXXXX'
Details:
| [000.000.011]  debug:  Worker Thread 34510491136 processing RPC 153:secd_rpc_auth_get_creds(caller: NBLADE_CIFS) with request ID:8924 which sat in the queue for

|[000.000.020]デバッグ：クライアントIPが要求に見つかりました：｛in secd_rpc_auth_get_creds_1_svc_secd（）at src/authorization/secd_rpc_authorization.cpp：1443｝

| [000.000.027]  debug:  Setting thread context. VServerId = 3 (name='svm1'), Protocol = CIFS, lifId = 0  { in setThreadContext() at
| [000.000.035]  debug:  secd_rpc_auth_get_creds_1_svc called with vserverid = 3  { in secd_rpc_auth_get_creds_1_svc_secd() at
| [000.000.039]  debug:  Getting creds for VserverId: 3  { in secd_rpc_auth_get_creds_1_svc_secd() at src/authorization/secd_rpc_authorization.cpp:1450 }
| [000.000.078]  debug:  Not a CIFS SID.  { in handleCifsFakedSidToName() at src/authorization/secd_cifs_authorization.cpp:813 }
| [000.000.087]  debug:  Not an NfsV4 SID.  { in handleNfsV4SidToName() at src/authorization/secd_cifs_authorization.cpp:1067 }
| [000.000.100]  debug:  Looking for LSA cache (key: "XX.XXX.XXXXX.com") in vserver 3  { in getConnectionCache() at
| [005.486.707]  ERR  :  Timed out waiting for a LSA connection after 5 seconds { in grab() at src/connection_manager/secd_connection_cache.cpp:111 }
| [005.486.714]  ERR  :  RESULT_ERROR_SECD_CONNECTION_WAIT_TIMEOUT:7015 in grab() at src/connection_manager/secd_connection_cache.cpp:112
| [005.486.731]  ERR  :  RESULT_ERROR_SECD_CONNECTION_WAIT_TIMEOUT:7015 in getConnection() at src/connection_manager/secd_connection_manager.cpp:598
| [005.486.738]  ERR  :  Unable to make a connection (LSA:XXXXXXX.XX.XX.XXXXX.com), result: 7015 { in getConnection() at
| [005.490.363]  debug:  Vserver's operational state: running  { in isVserverRunning() at src/configuration_manager/secd_configuration_manager.cpp:2765 }
| [005.490.383]  debug:  Logged secd.lsa.noServers to EMS  { in logEmsEventForLsaError() at src/utils/secd_ems_utils.cpp:559 }
| [005.490.389]  ERR  :  RESULT_ERROR_SECD_CONNECTION_WAIT_TIMEOUT:7015 in getLsaConnection() at src/connection_manager/secd_connection_manager.cpp:105
| [005.490.394]  ERR  :  RESULT_ERROR_SECD_CONNECTION_WAIT_TIMEOUT:7015 in getNameFromSid() at src/authorization/secd_cifs_authorization.cpp:650
| [005.490.401]  info :  Could not find Windows SID 'S-1-5-21-XXXXXXXX-XXXXXXXX-XXXXXXXX-XXXXXXXX' { in getNameFromSid() at
| [005.490.413]  ERR  :  RESULT_ERROR_SECD_CONNECTION_WAIT_TIMEOUT:7015 in secd_rpc_auth_get_creds_1_svc_secd() at src/authorization/secd_rpc_authorization.cpp:155
| [005.490.430]  debug:  SecD RPC Server sending reply to RPC 153: secd_rpc_auth_get_creds  { in secdSendRpcResponse() at src/server/secd_rpc_server.cpp:2153 }
| [005.490.467]  ERR  :  RESULT_ERROR_SECD_CONNECTION_WAIT_TIMEOUT:7015 in getFailureCode() at src/utils/secd_thread_task_journal.cpp:348
| [005.492.747]  debug:  Vserver's operational state: running  { in isVserverRunning() at src/configuration_manager/secd_configuration_manager.cpp:2765 }
| [005.492.765]  debug:  Logged unhandled NFS auth failure code '7015' to EMS using the EMS_secd_nfsAuth_problem EMS  { in logEmsEventWithJournalForNfsAuthError()

• NFSを介して共有されるCIFS共有でのユーザ名のマッピングが原因で、データ移行時のレイテンシが高く、スループットが遅い。ユーザマッピングとACLのチェックによってLDAPサーバが過負荷になる