multixact bug?

gistfile1.txt

Multixact numbers:

Latest checkpoint's NextXID:          0/1143490804
Latest checkpoint's NextOID:          371144030
Latest checkpoint's NextMultiXactId:  165978104
Latest checkpoint's NextMultiOffset:  798828566
Latest checkpoint's oldestXID:        945761490
Latest checkpoint's oldestXID's DB:   370038709
Latest checkpoint's oldestActiveXID:  1143490803
Latest checkpoint's oldestMultiXid:   123452201
Latest checkpoint's oldestMulti's DB: 370038709

Contents of pg_database:

postgres=# select datname, datminmxid from pg_database;
  datname  | datminmxid 
-----------+------------
 template1 |  162092572
 template0 |  129294097
 postgres  |  162092587
 appdev    |  162092814
 app2014   |  123452201
 app2013   |  133670732
 apptest   |  162092835

Contents of pg_multixact/members:

[root@db1 members]# du -sh
1.2G	
[root@db1 members]# ls -l | wc -l
4598

29B2  2A7A  2B42  2C0A  2CD2  2D9A  2E62  2F2A  2FF2  30BA  3182  324A  3312  33DA  34A2  356A  3632  36FA  37C2  388A  3952  3A1A  3AE2
29B3  2A7B  2B43  2C0B  2CD3  2D9B  2E63  2F2B  2FF3  30BB  3183  324B  3313  33DB  34A3  356B  3633  36FB  37C3  388B  3953  3A1B  3AE3
29B4  2A7C  2B44  2C0C  2CD4  2D9C  2E64  2F2C  2FF4  30BC  3184  324C  3314  33DC  34A4  356C  3634  36FC  37C4  388C  3954  3A1C  3AE4
... (many files omitted)
2A75  2B3D  2C05  2CCD  2D95  2E5D  2F25  2FED  30B5  317D  3245  330D  33D5  349D  3565  362D  36F5  37BD  3885  394D  3A15  3ADD  3BA5
2A76  2B3E  2C06  2CCE  2D96  2E5E  2F26  2FEE  30B6  317E  3246  330E  33D6  349E  3566  362E  36F6  37BE  3886  394E  3A16  3ADE
2A77  2B3F  2C07  2CCF  2D97  2E5F  2F27  2FEF  30B7  317F  3247  330F  33D7  349F  3567  362F  36F7  37BF  3887  394F  3A17  3ADF
2A78  2B40  2C08  2CD0  2D98  2E60  2F28  2FF0  30B8  3180  3248  3310  33D8  34A0  3568  3630  36F8  37C0  3888  3950  3A18  3AE0
2A79  2B41  2C09  2CD1  2D99  2E61  2F29  2FF1  30B9  3181  3249  3311  33D9  34A1  3569  3631  36F9  37C1  3889  3951  3A19  3AE1

contents of offsets/

[root@db1 offsets]# du -sh 
165M	.

[root@db1 offsets]# ls -l | wc -l
653

075B  0778  0795  07B2  07CF  07EC  0809  0826  0843  0860  087D  089A  08B7  08D4  08F1  090E  092B  0948  0965  0982  099F  09BC  09D9
075C  0779  0796  07B3  07D0  07ED  080A  0827  0844  0861  087E  089B  08B8  08D5  08F2  090F  092C  0949  0966  0983  09A0  09BD  09DA
075D  077A  0797  07B4  07D1  07EE  080B  0828  0845  0862  087F  089C  08B9  08D6  08F3  0910  092D  094A  0967  0984  09A1  09BE  09DB
... (many files omitted)
0775  0792  07AF  07CC  07E9  0806  0823  0840  085D  087A  0897  08B4  08D1  08EE  090B  0928  0945  0962  097F  099C  09B9  09D6
0776  0793  07B0  07CD  07EA  0807  0824  0841  085E  087B  0898  08B5  08D2  08EF  090C  0929  0946  0963  0980  099D  09BA  09D7
0777  0794  07B1  07CE  07EB  0808  0825  0842  085F  087C  0899  08B6  08D3  08F0  090D  092A  0947  0964  0981  099E  09BB  09D8