[Fedora-directory-users] Migration from i-planet 52

[Richard Megginson]

Eddie C wrote:
> I recently did an ldif backup of our iplanet 52 database. Its about an 
> 88 MB ldif file.
> I took this to a new FDS server Dell 850 3 ghz duel core 2 sata hard 
> disks.
> I ran an ldapadd  the data imported perfectly.
> Then I tried to cutover some systems and give the database some load.
>  
> System went 200% processor
>  
> Eventually I realized I was missing indexes so I added them through 
> the graphical tool.
>  
> The log seemed to do something like this
> generating index 1%
> generating index 2%
> ....
> generating index 49%
> Done
> Seemed weird that they would jump from 49% to Done
> At this point the new system was running at 100% processor
> But the queries are running faster on our old 440 MHZ sparc t1 
> server52 database
>  
> I ran
> DB ERROR: db_verify: Page 30: out-of-order key at entry 498
> DB ERROR: db_verify: DB->verify: db/o_com/channelcontentowner.db4: 
> DB_VERIFY_BAD: Database verification failed
>  
> then I tried db2_index. The program seemed to be in a tight loop 
> complaining about 1 missing entry.
>  
> I do not realize how the data can be so corrupted right after an import.
>  
> These are someone generic symptoms. Any ideas? Thanks
Try creating all of the required indexes first, then doing the import of 
your original LDIF.  Not only will the import+index creation be much 
faster (than doing the import then creating the indexes one at a time), 
but I think your database corruption problems will vanish.
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