can not use xapian-compact to merge dbs

[elmo1349]

xapian-compact db1 db2 output
postlist: Reduced by 51.8981% 16952K (32664K -> 15712K)
record: Reduced by 15.4246% 1424K (9232K -> 7808K)
termlist: Reduced by 16.3145% 2656K (16280K -> 13624K)
position: Reduced by 15.3489% 7936K (51704K -> 43768K)
value: Reduced by 15.4618% 1232K (7968K -> 6736K)
spelling ...xapian-compact: symbol lookup error: xapian-compact: undefined symbol: _ZNK10FlintTable12really_emptyEv

And both db1 and db2 have not spelling/synonym table:

xapian-check db1
spelling:
Lazily created, and not yet used.

synonym:
Lazily created, and not yet used.

[Olly Betts]

This means you are picking up the shared library (libxapian.so on Linux) from an older 1.0.x release. That symbol is an "internal to Xapian" method which was added in 1.0.18, and is used by xapian-compact. So you're running xapian-compact from 1.0.18 with libxapian.so from 1.0.17 or earlier.

Try:

which xapian-compact
ldd $(which xapian-compact)

If that doesn't make things clearer feel free to paste or attach the output from those two commands here (if pasting, put 3 { on a line before and 3 } on a line after so trac shows it nicely).

[Olly Betts]

Add quoting to description.

[Olly Betts]

This doesn't seem to be a bug in Xapian, but rather in the reporter's system configuarion, so closing as "invalid".

[elmo1349]

Dear olly,

Here is the output, /usr/local/bin/xapian-compact

linux-vdso.so.1 => (0x00007fff08bff000) libxapian.so.15 => /usr/local/lib/libxapian.so.15 (0x00007f9e448c0000) libz.so.1 => /lib/libz.so.1 (0x00007f9e446a9000) libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x00007f9e44399000) libm.so.6 => /lib/libm.so.6 (0x00007f9e44115000) libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x00007f9e43efe000) libc.so.6 => /lib/libc.so.6 (0x00007f9e43b8f000) /lib64/ld-linux-x86-64.so.2 (0x00007f9e44c12000)

how to make sure that my libxapian.so from 1.0.18 ? I compile xapian from tar.

[Olly Betts]

Try:

strings /usr/local/lib/libxapian.so.15 | fgrep '1.0.'

[elmo1349]

strings /usr/local/lib/libxapian.so.15 | fgrep '1.0.' 1.0.18

[Olly Betts]

What does this report?

nm /usr/local/lib/libxapian.so.15 | grep really_empty

What I get (and what I'd expect) is this (the first number will probably be different for you as that's the address of the code):

0000000000079220 T _ZNK10FlintTable12really_emptyEv

[Olly Betts]

No response to explicit request for more information for 5 weeks - closing as "incomplete".