Ceph » rgw

Hi,The same ceph version (v14.2.9), I did not find this problem.
Please check that there is no error in the cluster package installation process.

The correct information should be as follows:

$ ll /usr/lib64/ceph/compressor/libceph_zlib.so
lrwxrwxrwx. 1 root root 17 Jul 8 14:47 /usr/lib64/ceph/compressor/libceph_zlib.so -> libceph_zlib.so.2

$ rpm -qf /usr/lib64/ceph/compressor/libceph_zlib.so
ceph-base-14.2.10-0.el7.x86_64

[root@ceph01 ceph]# rpm -qf /usr/lib64/ceph/compressor/libceph_zlib.so
ceph-base-14.2.9-0.el7.x86_64

the file /usr/lib64/ceph/compressor/libceph_zlib.so is exist, the really error message is "undefined symbol: _ZN4ceph10_page_sizeE". the root cause is libceph_zlib.so need symblos from libceph-common.so.
libceph-common.so is dynamic linked by ceph-osd, the symbols in libceph-common are added to global symbol table when ceph-osd is running, and then dlopen can find the symbol.
The error occurs when java client using librgw via JNI and load compressor dynamically.

What OS are you using? Where were the packages installed from?

centos 7.6 for aarch64. we develop a jni library to wrap librgw.

can you give this change a try?

diff --git a/src/compressor/zlib/CMakeLists.txt b/src/compressor/zlib/CMakeLists.txt
index c1c8413949..d5bb6516a7 100644
--- a/src/compressor/zlib/CMakeLists.txt
+++ b/src/compressor/zlib/CMakeLists.txt
@@ -49,7 +49,7 @@ else(HAVE_INTEL_SSE4_1 AND HAVE_BETTER_YASM_ELF64 AND (NOT APPLE))
 endif(HAVE_INTEL_SSE4_1 AND HAVE_BETTER_YASM_ELF64 AND (NOT APPLE))

 add_library(ceph_zlib SHARED ${zlib_sources})
-target_link_libraries(ceph_zlib ZLIB::ZLIB compressor $<$<PLATFORM_ID:Windows>:ceph-common>)
+target_link_libraries(ceph_zlib ZLIB::ZLIB compressor ceph-common)
 target_include_directories(ceph_zlib SYSTEM PRIVATE "${CMAKE_SOURCE_DIR}/src/isa-l/include")
 set_target_properties(ceph_zlib PROPERTIES
   VERSION 2.0.0

i have create a pr for this, it drop PLATFORM_ID as you do.
https://github.com/ceph/ceph/pull/37272