ndmpcopy 失败，并显示错误 "Write to socket Failed"

• NetBackup NDMP 备份因错误“Write to socket failed”而失败。
• 中Interrupted system callWrite to socket failed检测到 "" 和 ""/mroot/etc/log/backup 。

<VOLUME_PATH> Phase_change (IV)
<VOLUME_PATH>  Log_msg (Write DIRNET for BKP ID=<ID>, type=3 interrupted while at waiting for max inflight. Error = Interrupted system call.)
<VOLUME_PATH>  Error (Write to socket failed)
<VOLUME_PATH>  Tape_close (ndmp)

• 使用ABORT/mroot/etc/log/mlog/ndmpd.log debug 选项可以在中看到接收命令。

eb DEBUG: DMA>>S V4 sequence=10 (0xa)
ec DEBUG: Time_stamp=0x61142838 (Aug 12 04:42:48 2021)
ed DEBUG: message type=0 (NDMP4_MESSAGE_REQUEST)
ee DEBUG: message_code=0x902 (NDMP4_CONNECT_CLOSE)
ef DEBUG: reply_sequence=0 (0x0)
f0 DEBUG: error_code=0 (NDMP4_NO_ERR)
f1 DEBUG: generic_ndmp_dispatch bytes left 0 (pre-body decode)
f2 DEBUG: generic_ndmp_dispatch bytes left 0 (post body decode)
f3 DEBUG: generic_dispatch: action start
f4 DEBUG: free_ndmp_req_request: put on free pool 0x80ad2f340 (0)
f5 DEBUG: service_terminate called
f6 DEBUG: received CLOSE command from [172.30.111.222].30971　
f7 DEBUG: cleanupOnClose: cookie = 0
f8 DEBUG: DATA session_close: called
f9 DEBUG: DATA new_request returns 0x80ac86dc0 (count 1)
fa INFO: DATA: sending backup ABORT　
fb DEBUG: COMMON_State::data_abort: called 
fc DEBUG: MGMT_RPC::client_send: 0x80aa1f7c0 msg 0x7fffffffe558 start 
fd DEBUG: MGMT_RPC::client_send: 0x80aa1f7c0 sending xid 1761411295 (0x68fd00df) default timeout 0 
fe DEBUG: C>BKUP (ndmp_client) NDMPD2BR_SESSION_ABORT