db2 前滾命令 output 在非目錄分區的“處理的日志文件”列中顯示“-”

Question

我在恢復命令后前滾了數據庫。 以下是查詢的輸出：

  db2 "rollforward db hdpf1 query status"

                                 Rollforward Status

 Input database alias                   = hdpf1
 Number of members have returned status = 3

 Member ID    Rollforward                 Next log             Log files processed        Last committed transaction
              status                      to be read
 -----------  --------------------------  -------------------  -------------------------  --------------------------
           0  DB  pending                 S0001422.LOG                     -              2019-10-22-17.26.46.000000 UTC
           1  DB  pending                 S0004726.LOG                     -              2019-10-22-17.40.25.000000 UTC
           2  DB  pending                 S0004583.LOG                     -              2019-10-22-17.52.59.000000 UTC

db2 "rollforward db hdpf1 to end of logs on all dbpartitionnums OVERFLOW LOG PATH ('/home/db2inst1/logs/db2inst1/HDPF1’)”
 
                                 Rollforward Status
 
Input database alias                   = hdpf1
Number of members have returned status = 3
 
Member ID    Rollforward                 Next log             Log files processed        Last committed transaction
              status                      to be read
-----------  --------------------------  -------------------  -------------------------  --------------------------
           0  DB  working                 S0001423.LOG         S0001422.LOG-S0001422.LOG  2019-10-27-07.32.56.000000 UTC
           1  DB  working                 S0004727.LOG                     -              2019-10-25-03.05.53.000000 UTC
           2  DB  working                 S0004584.LOG                     -              2019-10-25-03.04.32.000000 UTC
 
DB20000I  The ROLLFORWARD command completed successfully.

$ db2_all "db2 get db cfg for hdpf1 | grep -i 'First active log file'"
 
First active log file                                   = S0001421.LOG
db2 get db cfg for ... completed ok
 
First active log file                                   = S0004725.LOG
db2 get db cfg for ... completed ok
 
First active log file                                   = S0004582.LOG
db2 get db cfg for ... completed ok
 

應用日志之前的 state 似乎是：

1. 對於 NODE0000，日志號為：S0001421.LOG
2. 對於 NODE0001，日志號為：S0004725.LOG
3. 對於 NODE0002，日志號為：S0004582.LOG

然后用戶提供了以下范圍的日志：

1. 對於 NODE0000：S0001421.LOG - S0001423.LOG
2. 對於 NODE0001：S0004725.LOG - S0004726.LOG
3. 對於 NODE0002：S0004582.LOG - S0004583.LOG

如果將日志應用於數據庫，我不確定為什么 NODE 1 和 2 的“處理的日志文件”列是空白的。

我可以看到分區 1 和分區 2 中的日志編號更改（“要讀取的下一個日志”列已更新）但 output 沒有顯示分區 1 和分區 2 的“處理的日志文件”列。可能是什么原因?

`

當我嘗試使用另一個數據庫時，此值也反映在非目錄節點中：`

db2 "rollforward db hdpf2 query status"

                                 Rollforward Status

 Input database alias                   = hdpf2
 Number of members have returned status = 4

 Member ID    Rollforward                 Next log             Log files processed        Last committed transaction
              status                      to be read
 -----------  --------------------------  -------------------  -------------------------  --------------------------
           0  DB  pending                 S0000052.LOG                     -              2019-10-30-07.36.45.000000 UTC
           1  DB  pending                 S0000038.LOG                     -              2019-10-30-07.37.01.000000 UTC
           2  DB  pending                 S0000040.LOG                     -              2019-10-30-07.37.07.000000 UTC
           3  DB  pending                 S0000038.LOG                     -              2019-10-30-07.37.13.000000 UTC

db2 "rollforward db hdpf2 to end of logs on all dbpartitionnums OVERFLOW LOG PATH ('/home/db2inst1/log/HDPF')"

                                 Rollforward Status

 Input database alias                   = hdpf2
 Number of members have returned status = 4

 Member ID    Rollforward                 Next log             Log files processed        Last committed transaction
              status                      to be read
 -----------  --------------------------  -------------------  -------------------------  --------------------------
           0  DB  working                 S0000060.LOG         S0000052.LOG-S0000059.LOG  2019-10-31-10.32.32.000000 UTC
           1  DB  working                 S0000040.LOG         S0000038.LOG-S0000039.LOG  2019-10-30-07.37.01.000000 UTC
           2  DB  working                 S0000042.LOG         S0000040.LOG-S0000041.LOG  2019-10-30-07.37.07.000000 UTC
           3  DB  working                 S0000040.LOG         S0000038.LOG-S0000039.LOG  2019-10-30-07.37.13.000000 UTC

DB20000I  The ROLLFORWARD command completed successfully.

Answer 1

你用的Db2是什么級別？ 這兩個環境是否使用不同的 Db2 級別？

由於您提到 db2 級別相同，請參閱以下附加信息：報告的“已處理的日志文件”可能比實際處理的要少。 已恢復內容的真正指示是“最后提交的事務”時間戳。