解决方法:配置群集时# gem install redis 报错:Unable to require openssl, install OpenSSL and rebuild ruby
问题:
前面已经在/usr/local/src安装了ruby-2.3.0.tar.gz、rubygems-2.4.2.tar.gz。
在配置 redis-3.1.1 群集中,使用gem install 安装 ruby redis 接口时报:
- # [root@localhost src]# gem install redis --version 3.0.0
- # # 由于源的原因,可能下载失败,就手动下载下来安装
- [root@localhost src]# gem install /usr/local/src/redis-3.2.1.gem
- ERROR: While executing gem ... (Gem::Exception)
- Unable to require openssl, install OpenSSL and rebuild ruby (preferred) or use non-HTTPS sources
原因:
缺少openssl,需要安装openssl包,我现在这里来安装一个openssl-1.0.1s.tar.gz(下载链接:http://www.openssl.org/source/)
解决方法步骤:
1.解压在/usr/local/src目录下,进入/usr/local/src/openssl-1.0.1s目录准备安装:
- [root@localhost src]# tar -xzvf openssl-1.0.1s.tar.gz
- [root@localhost src]# cd openssl-1.0.1s
- [root@localhost openssl-1.0.1s]# ./config -fPIC --prefix=/usr/local/openssl enable-shared
- [root@localhost openssl-1.0.1s]# ./config -t
- [root@localhost openssl-1.0.1s]# make && make install
openssl的配置文件必须要配置-fPIC参数,如果没有该参数下面的安装中会出现问题!
安装完成,可以检测一下是否安装成功:
- [root@localhost openssl-1.0.1s]# openssl version
2.进入ruby源码[/usr/local/src/ruby-2.3.0]目录下的ext/openssl 目录:
- [root@localhost openssl-1.0.1s]# cd ../ruby-2.3.0
- [root@localhost ruby-2.3.0]# cd ext/openssl
- [root@localhost openssl]# ruby extconf.rb
- checking for t_open() in -lnsl... no
- checking for socket() in -lsocket... no
- checking for assert.h... yes
- checking for openssl/ssl.h... no
提示没有找到ssl.h, 因为出现了错误:openssl/ssl.h:没有那个文件或目录
- [root@localhost openssl]# ruby extconf.rb --with-openssl-include=/usr/local/openssl/include/ --with-openssl-lib=/usr/local/openssl/lib
- checking for t_open() in -lnsl... no
- checking for socket() in -lsocket... no
- checking for assert.h... yes
- checking for openssl/ssl.h... yes
- .............................................中间略.............................................
- checking for EVP_CTRL_GCM_GET_TAG in openssl/evp.h... yes
- creating extconf.h
- creating Makefile
成功。
3.接下来并且将ruby 源码目录下的include目录软链接到 / 目录下:
- [root@localhost openssl]# ln -s /usr/local/src/ruby-2.2.3/include /
接着再执行make,如果在配置openssl时没有-fPIC参数时就会出现如下错误
- [root@localhost openssl]# make
- gcc -shared -o openssl.so ossl_x509.o ossl_x509cert.o ossl_x509crl.o ossl_pkcs7.o ossl_cipher.o ossl_pkey_dh.o ossl_ssl_session.o ossl_x509attr.o ossl_x509ext.o ossl_ocsp.o ossl_asn1.o ossl_x509name.o ossl_x509revoked.o ossl_rand.o ossl_pkcs12.o ossl_x509store.o ossl_ssl.o ossl.o ossl_digest.o ossl_config.o ossl_pkcs5.o ossl_bio.o ossl_pkey_dsa.o ossl_pkey.o ossl_x509req.o ossl_pkey_ec.o ossl_hmac.o openssl_missing.o ossl_ns_spki.o ossl_pkey_rsa.o ossl_engine.o ossl_bn.o -L. -L/usr/local/ruby/lib -Wl,-R/usr/local/ruby/lib -L/usr/local/ssl/lib -Wl,-R/usr/local/ssl/lib -L. -rdynamic -Wl,-export-dynamic -lssl -lcrypto -lrt -ldl -lcrypt -lm -lc
- /usr/bin/ld: /usr/local/ssl/lib/libssl.a(s2_meth.o): relocation R_X86_64_32 against `a local symbol'
- can not be used when making a shared object; recompile with -fPIC
- /usr/local/ssl/lib/libssl.a: could not read symbols: Bad value
- collect2: ld returned 1 exit status
- make: *** [openssl.so] Error 1
有配置-fPIC参数时就继续走下去:
- [root@localhost openssl]# make
- compiling ossl_pkey_dsa.c
- compiling openssl_missing.c
- compiling ossl_x509name.c
- compiling ossl_pkey_rsa.c
- .............................................中间略.............................................
- compiling ossl_bn.c
- compiling ossl.c
- linking shared-object openssl.so
- [root@localhost openssl]# make install
- /usr/bin/install -c -m 0755 openssl.so /usr/local/ruby/lib/ruby/site_ruby/2.2.0/x86_64-linux
- installing default openssl libraries
成功。
4.回过头来,这时候我们已经把配置集群遇到的各种问题已经解决好了,再次使用gem install 安装 ruby redis 接口:
- # [root@localhost src]# gem install redis --version 3.0.0
- # # 由于源的原因,可能下载失败,就手动下载下来安装
- [root@localhost src]# gem install /usr/local/src/redis-3.2.1.gem
- Successfully installed redis-3.2.1
- Parsing documentation for redis-3.2.1
- Installing ri documentation for redis-3.2.1
- Done installing documentation for redis after 0 seconds
- WARNING: Unable to pull data from 'https://rubygems.org/': SSL_connect returned=1 errno=0 state=error: certificate verify failed (https://rubygems.org/specs.4.8.gz)
- 1 gem installed
可以看到这时ruby redis接口已经安装成功了;
当Redis也安装好,这时我们来做一个Redis集群测试,在一台服务器中创建了6个Redis实例,开启6个Redis服务。
- [root@localhost redis-cluster]# redis-trib.rb create --replicas 1 127.0.0.1:7001 127.0.0.1:7002 127.0.0.1:7003 127.0.0.1:7004 127.0.0.1:7005 127.0.0.1:7006
- >>> Creating cluster
- >>> Performing hash slots allocation on 6 nodes...
- Using 3 masters:
- 127.0.0.1:7001
- 127.0.0.1:7002
- 127.0.0.1:7003
- Adding replica 127.0.0.1:7004 to 127.0.0.1:7001
- Adding replica 127.0.0.1:7005 to 127.0.0.1:7002
- Adding replica 127.0.0.1:7006 to 127.0.0.1:7003
- M: e18c4d9b2a9c2b92b3695cb7236512bc3569349e 127.0.0.1:7001
- slots:0-5460 (5461 slots) master
- M: bfd2c5320bfa800713e18b8f57900fd63995d7cf 127.0.0.1:7002
- slots:5461-10922 (5462 slots) master
- M: 9d41b514413bcf348d55fe7239ce93b94fab7b01 127.0.0.1:7003
- slots:10923-16383 (5461 slots) master
- S: fef13f9a028d8a5de2442f562aa88941eb591ba5 127.0.0.1:7004
- replicates e18c4d9b2a9c2b92b3695cb7236512bc3569349e
- S: 7845903bdd01e2992877e27110bbbc7ff4036828 127.0.0.1:7005
- replicates bfd2c5320bfa800713e18b8f57900fd63995d7cf
- S: c0becb06b09e957fd34fad5ae85dec15d0b59cd8 127.0.0.1:7006
- replicates 9d41b514413bcf348d55fe7239ce93b94fab7b01
- Can I set the above configuration? (type 'yes' to accept): yes
- >>> Nodes configuration updated
- >>> Assign a different config epoch to each node
- >>> Sending CLUSTER MEET messages to join the cluster
- Waiting for the cluster to join.....
- >>> Performing Cluster Check (using node 127.0.0.1:7001)
- M: e18c4d9b2a9c2b92b3695cb7236512bc3569349e 127.0.0.1:7001
- slots:0-5460 (5461 slots) master
- M: bfd2c5320bfa800713e18b8f57900fd63995d7cf 127.0.0.1:7002
- slots:5461-10922 (5462 slots) master
- M: 9d41b514413bcf348d55fe7239ce93b94fab7b01 127.0.0.1:7003
- slots:10923-16383 (5461 slots) master
- M: fef13f9a028d8a5de2442f562aa88941eb591ba5 127.0.0.1:7004
- slots: (0 slots) master
- replicates e18c4d9b2a9c2b92b3695cb7236512bc3569349e
- M: 7845903bdd01e2992877e27110bbbc7ff4036828 127.0.0.1:7005
- slots: (0 slots) master
- replicates bfd2c5320bfa800713e18b8f57900fd63995d7cf
- M: c0becb06b09e957fd34fad5ae85dec15d0b59cd8 127.0.0.1:7006
- slots: (0 slots) master
- replicates 9d41b514413bcf348d55fe7239ce93b94fab7b01
- [OK] All nodes agree about slots configuration.
- >>> Check for open slots...
- >>> Check slots coverage...
- [OK] All 16384 slots covered.
- [root@localhost redis-cluster]# redis-trib.rb check
- [ERR] Wrong number of arguments for specified sub command
- [root@localhost redis-cluster]# redis-trib.rb check 127.0.0.1:7001
- >>> Performing Cluster Check (using node 127.0.0.1:7001)
- M: e18c4d9b2a9c2b92b3695cb7236512bc3569349e 127.0.0.1:7001
- slots:0-5460 (5461 slots) master
- 1 additional replica(s)
- S: c0becb06b09e957fd34fad5ae85dec15d0b59cd8 127.0.0.1:7006
- slots: (0 slots) slave
- replicates 9d41b514413bcf348d55fe7239ce93b94fab7b01
- S: fef13f9a028d8a5de2442f562aa88941eb591ba5 127.0.0.1:7004
- slots: (0 slots) slave
- replicates e18c4d9b2a9c2b92b3695cb7236512bc3569349e
- S: 7845903bdd01e2992877e27110bbbc7ff4036828 127.0.0.1:7005
- slots: (0 slots) slave
- replicates bfd2c5320bfa800713e18b8f57900fd63995d7cf
- M: bfd2c5320bfa800713e18b8f57900fd63995d7cf 127.0.0.1:7002
- slots:5461-10922 (5462 slots) master
- 1 additional replica(s)
- M: 9d41b514413bcf348d55fe7239ce93b94fab7b01 127.0.0.1:7003
- slots:10923-16383 (5461 slots) master
- 1 additional replica(s)
- [OK] All nodes agree about slots configuration.
- >>> Check for open slots...
- >>> Check slots coverage...
- [OK] All 16384 slots covered.
这样就表示我们的集群(三主三从)创建成功了!
主节点:127.0.0.1:7001 127.0.0.1:7002 127.0.0.1:7003
从节点:127.0.0.1:7004 127.0.0.1:7005 127.0.0.1:7006
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