这篇文章主要介绍“mysql执行执行pt-query-digest报错的原因”，在日常操作中，相信很多人在mysql执行执行pt-query-digest报错的原因问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”mysql执行执行pt-query-digest报错的原因”的疑惑有所帮助！接下来，请跟着小编一起来学习吧！

操作环境

问题

分析问题

操作系统版本

[root@three57mysql57_dir]#more/etc/redhat-releaseRedHatEnterpriseLinuxServerrelease6.8(Santiago)

pt-query-digest版本

[root@three57mysql57_dir]#pt-query-digest--versionpt-query-digest3.1.0问题

执行pt-query-digest报错

[root@three57percona-toolkit-3.1.0]#pt-query-digest--interval=2--processlist-uroot-psystemReadingfromSTDIN...install_driver(mysql)failed:AttempttoreloadDBD/mysql.pmaborted.Compilationfailedinrequireat(eval23)line3.分析问题

经查baidu与perl的mysql.so库文件相关

[root@three57percona-toolkit-3.1.0]#locatemysql.so/usr/lib64/perl5/auto/DBD/mysql/mysql.so

分析perl的mysql.so库文件的依赖库是否完整，可见缺失libmysqlclient.so.16

[root@three57percona-toolkit-3.1.0]#ldd/usr/lib64/perl5/auto/DBD/mysql/mysql.solinux-vdso.so.1=>(0x00007ffcf6dd4000)libmysqlclient.so.16=>notfound确实没找到mysql动态链接库libz.so.1=>/lib64/libz.so.1(0x00007f9b0e1cb000)libcrypt.so.1=>/lib64/libcrypt.so.1(0x00007f9b0df94000)libnsl.so.1=>/lib64/libnsl.so.1(0x00007f9b0dd7b000)libm.so.6=>/lib64/libm.so.6(0x00007f9b0daf6000)libssl.so.10=>/usr/lib64/libssl.so.10(0x00007f9b0d88a000)libcrypto.so.10=>/usr/lib64/libcrypto.so.10(0x00007f9b0d4a6000)libc.so.6=>/lib64/libc.so.6(0x00007f9b0d111000)libfreebl3.so=>/lib64/libfreebl3.so(0x00007f9b0cf0e000)libgssapi_krb5.so.2=>/lib64/libgssapi_krb5.so.2(0x00007f9b0ccca000)libkrb5.so.3=>/lib64/libkrb5.so.3(0x00007f9b0c9e2000)libcom_err.so.2=>/lib64/libcom_err.so.2(0x00007f9b0c7de000)libk5crypto.so.3=>/lib64/libk5crypto.so.3(0x00007f9b0c5b2000)libresolv.so.2=>/lib64/libresolv.so.2(0x00007f9b0c397000)libdl.so.2=>/lib64/libdl.so.2(0x00007f9b0c193000)/lib64/ld-linux-x86-64.so.2(0x000000381da00000)libkrb5support.so.0=>/lib64/libkrb5support.so.0(0x00007f9b0bf88000)libkeyutils.so.1=>/lib64/libkeyutils.so.1(0x00007f9b0bd84000)libpthread.so.0=>/lib64/libpthread.so.0(0x00007f9b0bb67000)libselinux.so.1=>/lib64/libselinux.so.1(0x00007f9b0b947000)

libmysqlclient.so这种库文件源于mysql安装介质

查询已安装的mysql软件包

[root@three57mysql57_dir]#rpm-qa|grep-i--colormysqlmysql-community-common-5.7.21-1.el6.x86_64mysql-community-server-5.7.21-1.el6.x86_64perl-DBD-MySQL-4.013-3.el6.x86_64mysql-community-libs-5.7.21-1.el6.x86_64mysql-community-client-5.7.21-1.el6.x86_64

查询已安装的libmysqlclient库文件

[root@three57mysql57_dir]#locate/usr/lib64/mysql/libmysqlclient.so.20/usr/lib64/mysql/libmysqlclient.so.20/usr/lib64/mysql/libmysqlclient.so.20.3.8

综上所述，应该需要安装mysql软件包mysql-community-libs-compat

(注：它是提供mysql旧版本的共享库文件）

[root@three57mysql57_dir]#rpm-ivhmysql-community-libs-compat-5.7.21-1.el6.x86_64.rpmwarning:mysql-community-libs-compat-5.7.21-1.el6.x86_64.rpm:HeaderV3DSA/SHA1Signature,keyID5072e1f5:NOKEYPreparing...###########################################[100%]1:mysql-community-libs-co###########################################[100%][root@three57mysql57_dir]#locatelibmysqlclient.so.16/usr/lib64/mysql/libmysqlclient.so.16/usr/lib64/mysql/libmysqlclient.so.16.0.0

执行ldd /usr/lib64/perl5/auto/DBD/mysql/mysql.so正常

[root@three57mysql57_dir]#ldd/usr/lib64/perl5/auto/DBD/mysql/mysql.solinux-vdso.so.1=>(0x00007ffd3fee9000)libmysqlclient.so.16=>/usr/lib64/mysql/libmysqlclient.so.16(0x00007f346d4e3000)libz.so.1=>/lib64/libz.so.1(0x00007f346d2cd000)libcrypt.so.1=>/lib64/libcrypt.so.1(0x00007f346d095000)libnsl.so.1=>/lib64/libnsl.so.1(0x00007f346ce7c000)libm.so.6=>/lib64/libm.so.6(0x00007f346cbf8000)libssl.so.10=>/usr/lib64/libssl.so.10(0x00007f346c98b000)libcrypto.so.10=>/usr/lib64/libcrypto.so.10(0x00007f346c5a7000)libc.so.6=>/lib64/libc.so.6(0x00007f346c213000)libfreebl3.so=>/lib64/libfreebl3.so(0x00007f346c00f000)libgssapi_krb5.so.2=>/lib64/libgssapi_krb5.so.2(0x00007f346bdcb000)libkrb5.so.3=>/lib64/libkrb5.so.3(0x00007f346bae4000)libcom_err.so.2=>/lib64/libcom_err.so.2(0x00007f346b8df000)libk5crypto.so.3=>/lib64/libk5crypto.so.3(0x00007f346b6b3000)libresolv.so.2=>/lib64/libresolv.so.2(0x00007f346b499000)libdl.so.2=>/lib64/libdl.so.2(0x00007f346b294000)/lib64/ld-linux-x86-64.so.2(0x000000381da00000)libkrb5support.so.0=>/lib64/libkrb5support.so.0(0x00007f346b089000)libkeyutils.so.1=>/lib64/libkeyutils.so.1(0x00007f346ae86000)libpthread.so.0=>/lib64/libpthread.so.0(0x00007f346ac68000)libselinux.so.1=>/lib64/libselinux.so.1(0x00007f346aa49000)

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