MySQL crashed,
```
Sep 2 13:58:20 db2120 mysqld[1095]: 2020-09-02 13:58:20 107197705 [ERROR] InnoDB: Database page corruption on disk or a failed file read of tablespace metawiki/content page [page id: space=4936, page number=49350]. You may have to recover from a backup.
Sep 2 13:58:20 db2120 mysqld[1095]: 2020-09-02 13:58:20 107197705 [Note] InnoDB: Page dump in ascii and hex (16384 bytes):
Sep 2 13:58:20 db2120 mysqld[1095]: len 16384; hex 58252d810000c0c60000c0c50000c0c7000014f062d2a6a045bf00000000000000000000134800323b8c80c9000000003b47000200c600c7000000000000000000000000000000004d7e0000000000000000000000000000000000000000010002001c696e66696d756d0008000
b000073757072656d756d0b1f000010004c0000000000967dde0004634a1a2dff000002a63b8e000003cd646368746a30797a616c74396e3834386d70396b73637130326b6c7074336c000174743a31303136363635310b1f000018004c0000000000967ddf0004634a1a2dff000002a63ba0000003cd646368746a30797a616c74396e3834386d7
0396b73637130326b6c7074336c000174743a31303136363635320b1f000020004c0000000000967de00004634a1a2dff000002a63bb2000003cd646368746a30797a616c74396e3834386d70396b73637130326b6c7074336c000174743a31303136363635330b1f040028004c0000000000967de10004634a1a2dff000002a63bc4000003cd646
368746a30797a616c74396e3834386d70396b73637130326b6c7074336c000174743a31303136363635340b1f000030004c0000000000967de20004634a1a2dff000002a63bd6000003cd646368746a30797a616c74396e3834386d70396b73637130326b6c7074336c000174743a31303136363635350b1f000038004c0000000000967de300046
34a1a2dff000002a63be8000003cd39733962726e7a763063683170306f7a7037656d6b6b706b376a3661356561000174743a31303136363635360b1f000040004c0000000000967de40004634a1a2dff000002a63bfa000003cd39733962726e7a763063683170306f7a7037656d6b6b706b376a3661356561000174743a31303136363635370b1
f040048004c0000000000967de50004634a1a2dff000002a63c0c000003cd39733962726e7a763063683170306f7a7037656d6b6b706b376a3661356561000174743a31303136363635380b1f000050004c0000000000967de60004634a1a2dff000002a63c1e000003cd39733962726e7a763063683170306f7a7037656d6b6b706b376a3661356
561000174743a31303136363635390b1f000058004c0000000000967de70004634a1a2dff000002a63c30000003cd39733962726e7a763063683170306f7a7037656d6b6b706b376a3661356561000174743a31303136363636300b1f000060004c0000000000967de80004634a1a2dff000002a63c42000003cd39733962726e7a7630636831703
06f7a7037656d6b6b706b376a3661356561000174743a31303136363636310b1f040068004c0000000000967de90004634a1a2dff000002a63c54000003cd6a736877786265356c3173723965696c6f3335627462356371706f6d75746e000174743a31303136363636320b1f000070004c0000000000967dea0004634a1a2dff000002a63c66000
003cd6a736877786265356c3173723965696c6f3335627462356371706f6d75746e000174743a31303136363636330b1f000078004c0000000000967deb0004634a1a2dff000002a63c78000003cd6a736877786265356c3173723965696c6f3335627462356371706f6d75746e000174743a31303136363636340b1f000080004c0000000000967
dec0004634a1a2dff000002a63c8a000003cd6a736877786265356c3173723965696c6f3335627462356371706f6d75746e000174743a31303136363636350b1f040088004c0000000000967ded0004634a1a2dff000002a63c9c000003cd6a736877786265356c3173723965696c6f3335627462356371706f6d75746e000174743a31303136363
636360b1f000090004c0000000000967dee0004634a1a2dff000002a63cae000003cd6a736877786265356c3173723965696c6f3335627462356371706f6d75746e000174743a31303136363636370b1f000098004c0000000000967def0004634a1a2dff000002a63cc0000003cd6a736877786265356c3173723965696c6f33356274623563717
06f6d75746e000174743a31303136363636380b1f0000a0004c0000000000967df00004634a1a2dff000002a63cd2000003cd6a736877786265356c3173723965696c6f3335627462356371706f6d75746e000174743a31303136363636390b1f0400a8004c0000000000967df10004634a1a2dff000002a63ce4000003cd6a736877786265356c3
173723965696c6f3335627462356371706f6d75746e000174743a31303136363637300b1f0000b0004c0000000000967df20004634a1a2dff000002a63cf6000003cd6a736877786265356c3173723965696c6f3335627462356371706f6d75746e000174743a31303136363637310b1f0000b8004c0000000000967df30004634a1a2dff000002a
63d08000003cd6a736877786265356c3173723965696c6f3335627462356371706f6d75746e000174743a31303136363637320b1f0000c0004c0000000000967df40004634a1a2dff000002a63d1a000003cd616b3837773335376d6e65623867316174716e32756d736d62646c6e756865000174743a31303136363637330b1f0400c8004c00000
00000967df50004634a1a2dff000002a63d2c000003cd616b3837773335376d6e65623867316174716e32756d736d62646c6e756865000174743a31303136363637340b1f0000d0004c0000000000967df60004634a1a2dff000002a63d3e000003cd616b3837773335376d6e65623867316174716e3275
```
Let's recover rebuilt it