KingbaseES V8R6 运维案例 --ksql访问动态库问题
KingbaseES V8R6数据库运维案例之---ksql访问动态库问题
案例说明：
CentOS环境下，在安装和初始化数据库实例后，启动数据库服务，通过ksql连接访问时出现以下故障：
经检查，是缺失动态库'libpq.so.5 '导致。
系统环境：
[kingbase@node102 bin]$ cat /etc/centos-release
CentOS Linux release 7.9.2009 (Core)
适用版本：
KingbaseES V8R6
一、问题现象
[kingbase@node102 bin]$ ./ksql -U system test -p 54321
./ksql: /opt/Kingbase/ES/V8R6_C7/KESRealPro/V008R006C007B0012/Server/bin/../lib/libssl.so.10: no version information available (required by /lib64/libpq.so.5)
./ksql: /opt/Kingbase/ES/V8R6_C7/KESRealPro/V008R006C007B0012/Server/bin/../lib/libcrypto.so.10: no version information available (required by /lib64/libpq.so.5)
./ksql: /opt/Kingbase/ES/V8R6_C7/KESRealPro/V008R006C007B0012/Server/bin/../lib/libcrypto.so.10: no version information available (required by /lib64/libldap_r-2.4.so.2)
./ksql: /opt/Kingbase/ES/V8R6_C7/KESRealPro/V008R006C007B0012/Server/bin/../lib/libcrypto.so.10: no version information available (required by /lib64/libldap_r-2.4.so.2)
./ksql: /opt/Kingbase/ES/V8R6_C7/KESRealPro/V008R006C007B0012/Server/bin/../lib/libssl.so.10: no version information available (required by /lib64/libldap_r-2.4.so.2)
ksql: error: could not connect to server: could not connect to server: No such file or directory
Is the server running locally and accepting
connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.54321"?
---如上所示，ksql无法连接数据库访问，并出现动态库故障。
二、问题分析
1、检查数据库服务状态
[kingbase@node102 bin]$ netstat -an |grep 543
tcp 0 0 0.0.0.0:54321 0.0.0.0:* LISTEN
tcp6 0 0 :::54321 :::* LISTEN
unix 2 [ ACC ] STREAM LISTENING 66234 /tmp/.s.KINGBASE.54321
unix 3 [ ] STREAM CONNECTED 28543
---如上所示，数据库服务运行状态正常，数据库服务端口（54321）处于监听状态。
2、查看ksql动态库链接信息
[kingbase@node102 bin]$ ldd -r ksql
linux-vdso.so.1 => (0x00007ffd8e583000)
libssl.so.10 => /opt/Kingbase/ES/V8R6_C7/KESRealPro/V008R006C007B0012/Server/bin/./../lib/libssl.so.10 (0x00007fab06477000)
libcrypto.so.10 => /opt/Kingbase/ES/V8R6_C7/KESRealPro/V008R006C007B0012/Server/bin/./../lib/libcrypto.so.10 (0x00007fab0604e000)
librt.so.1 => /lib64/librt.so.1 (0x00007fab05e46000)
libcrypt.so.1 => /lib64/libcrypt.so.1 (0x00007fab05c0f000)
libdl.so.2 => /lib64/libdl.so.2 (0x00007fab05a0b000)
libm.so.6 => /lib64/libm.so.6 (0x00007fab05709000)
libicui18n.so.52 => /opt/Kingbase/ES/V8R6_C7/KESRealPro/V008R006C007B0012/Server/bin/./../lib/libicui18n.so.52 (0x00007fab05294000)
libicuuc.so.52 => /opt/Kingbase/ES/V8R6_C7/KESRealPro/V008R006C007B0012/Server/bin/./../lib/libicuuc.so.52 (0x00007fab04efb000)
libicudata.so.52 => /opt/Kingbase/ES/V8R6_C7/KESRealPro/V008R006C007B0012/Server/bin/./../lib/libicudata.so.52 (0x00007fab0368f000)
libuuid.so.1 => /lib64/libuuid.so.1 (0x00007fab0348a000)
libc.so.6 => /lib64/libc.so.6 (0x00007fab030bc000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fab02ea0000)
libz.so.1 => /lib64/libz.so.1 (0x00007fab02c8a000)
libfreebl3.so => /lib64/libfreebl3.so (0x00007fab02a87000)
/lib64/ld-linux-x86-64.so.2 (0x00007fab066e7000)
libstdc++.so.6 => /lib64/libstdc++.so.6 (0x00007fab0277f000)
libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007fab02569000)
---如上所示，ksql动态库没有出现明显的error信息。
2、查看其他版本ksql的动态库信息
[kingbase@node102 bin]$ ldd -r ksql
linux-vdso.so.1 => (0x00007ffc98b45000)
libpq.so.5 => /home/kingbase/cluster/R6HA/kha/kingbase/bin/./../lib/libpq.so.5 (0x00007f9eacfb5000)
libssl.so.10 => /home/kingbase/cluster/R6HA/kha/kingbase/bin/./../lib/libssl.so.10 (0x00007f9eacd45000)
libcrypto.so.10 => /home/kingbase/cluster/R6HA/kha/kingbase/bin/./../lib/libcrypto.so.10 (0x00007f9eac91c000)
libz.so.1 => /lib64/libz.so.1 (0x00007f9eac706000)
libreadline.so.5 => /home/kingbase/cluster/R6HA/kha/kingbase/bin/./../lib/libreadline.so.5 (0x00007f9eac4ca000)
libtermcap.so.2 => /home/kingbase/cluster/R6HA/kha/kingbase/bin/./../lib/libtermcap.so.2 (0x00007f9eac2c5000)
librt.so.1 => /lib64/librt.so.1 (0x00007f9eac0bd000)
libcrypt.so.1 => /lib64/libcrypt.so.1 (0x00007f9eabe86000)
libdl.so.2 => /lib64/libdl.so.2 (0x00007f9eabc82000)
libm.so.6 => /lib64/libm.so.6 (0x00007f9eab980000)
libc.so.6 => /lib64/libc.so.6 (0x00007f9eab5b2000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f9eab396000)
libfreebl3.so => /lib64/libfreebl3.so (0x00007f9eab193000)
/lib64/ld-linux-x86-64.so.2 (0x00007f9ead1ff000)
---如上图所示，其他版本的ksql中有‘libpq.so.5'的动态库链接信息，而出现故障的ksql中无此动态库链接信息。
3、查看其他版本lib下动态库文件信息
[kingbase@node102 lib]$ ls -lh libpq*
-rwxr-xr-x. 1 kingbase kingbase 330K Feb 16 2022 libpq.so
-rwxr-xr-x. 1 kingbase kingbase 330K Feb 16 2022 libpq.so.5
-rwxr-xr-x. 1 kingbase kingbase 330K Feb 16 2022 libpq.so.5.12
-rwxr-xr-x. 1 kingbase kingbase 26K Feb 16 2022 libpqwalreceiver.so
---当前故障版本的lib目录下，缺失libpq.so.5的动态库文件。
三、问题解决
1、将其他版本的libpq的动态库拷贝到当前版本
2、查看当前版本动态库文件信息
[kingbase@node102 bin]$ cd /opt/Kingbase/ES/V8R6_C7/Server/lib
[kingbase@node102 lib]$ ls -lh libpq*
-rw-r-xr-x 1 kingbase kingbase 330K Feb 1 10:50 libpq.so
-rw-r-xr-x 1 kingbase kingbase 330K Feb 1 10:50 libpq.so.5
-rw-rw-r-- 1 kingbase kingbase 335K Oct 28 19:39 libpq.so.5.12
-rw-rw-r-- 1 kingbase kingbase 26K Oct 28 19:39 libpqwalreceiver.so
#授权文件可执行权限
[kingbase@node102 lib]$ chmod u+x *
[kingbase@node102 lib]$ ls -lh libpq*
-rwxr-xr-x 1 kingbase kingbase 330K Feb 1 10:50 libpq.so
-rwxr-xr-x 1 kingbase kingbase 330K Feb 1 10:50 libpq.so.5
-rwxrw-r-- 1 kingbase kingbase 335K Oct 28 19:39 libpq.so.5.12
-rwxrw-r-- 1 kingbase kingbase 26K Oct 28 19:39 libpqwalreceiver.so
3、查看当前版本ksql动态库链接信息
[kingbase@node102 lib]$ cd ../bin
[kingbase@node102 bin]$ ldd -r ksql
linux-vdso.so.1 => (0x00007ffc680b9000)
libpq.so.5 => /opt/Kingbase/ES/V8R6_C7/KESRealPro/V008R006C007B0012/Server/bin/./../lib/libpq.so.5 (0x00007f853a11a000)
libssl.so.10 => /opt/Kingbase/ES/V8R6_C7/KESRealPro/V008R006C007B0012/Server/bin/./../lib/libssl.so.10 (0x00007f8539eaa000)
libcrypto.so.10 => /opt/Kingbase/ES/V8R6_C7/KESRealPro/V008R006C007B0012/Server/bin/./../lib/libcrypto.so.10 (0x00007f8539a81000)
libz.so.1 => /lib64/libz.so.1 (0x00007f853986b000)
libreadline.so.5 => /opt/Kingbase/ES/V8R6_C7/KESRealPro/V008R006C007B0012/Server/bin/./../lib/libreadline.so.5 (0x00007f853962f000)
libtermcap.so.2 => /opt/Kingbase/ES/V8R6_C7/KESRealPro/V008R006C007B0012/Server/bin/./../lib/libtermcap.so.2 (0x00007f853942a000)
librt.so.1 => /lib64/librt.so.1 (0x00007f8539222000)
libcrypt.so.1 => /lib64/libcrypt.so.1 (0x00007f8538feb000)
libdl.so.2 => /lib64/libdl.so.2 (0x00007f8538de7000)
libm.so.6 => /lib64/libm.so.6 (0x00007f8538ae5000)
libc.so.6 => /lib64/libc.so.6 (0x00007f8538717000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f85384fb000)
libfreebl3.so => /lib64/libfreebl3.so (0x00007f85382f8000)
/lib64/ld-linux-x86-64.so.2 (0x00007f853a364000)
---如上图所示，ksql已经建立和'libpq'的动态库链接。
4、ksql连接访问
[kingbase@node102 bin]$ ./ksql -U system test
ksql (V8.0)
Type "help" for help.
test=#
---如上所示，ksql可以正常连接访问。
四、总结
1、对于以上故障问题，生产环境下，可以尝试重新安装数据库软件来解决。
2、如果存在其他V8R6的版本，可以尝试按照以上方案处理解决。
KINGBASE研究院
