无法启动 greenplum - gpstart 失败

Posted 2023-03-31

【中文标题】无法启动 greenplum - gpstart 失败

【英文标题】：cannot start greenplum - gpstart failed

【发布时间】：2015-03-03 03:54:45

【问题描述】：

我试图在我的 greenplum 机器上更新到最新的 java，并将路径变量更改为最新的 java 文件夹。

从那时起，我就无法启动 greenplumdb。每当我运行 gpstart 命令时.. 我收到以下错误

gpstart failed. (Reason ='[Errno -2] name or service not known') exiting...

如果我从跟踪开始，即gpstart -v ..我得到以下输出

Traceback (most recent call last):
  File "/usr/local/greenplum-db/lib/python/gppylib/mainUtils.py", line 280, in simple_main_locked
    exitCode = commandObject.run()
  File "/usr/local/greenplum-db/./bin/gpstart", line 152, in run
    success=self._start(segmentsToStart, invalidSegments, inactiveSegments)
  File "/usr/local/greenplum-db/./bin/gpstart", line 431, in _start
    segmentStartResult = segmentStartOp.startSegments(self.gparray, segmentsToStart, startMode, self.era)
  File "/usr/local/greenplum-db/lib/python/gppylib/operations/startSegments.py", line 107, in startSegments
    failedPings=self.hostcache.ping_hosts(self.__workerPool)
  File "/usr/local/greenplum-db/lib/python/gppylib/gphostcache.py", line 260, in ping_hosts
    p = unix.Ping('ping', key)
  File "/usr/local/greenplum-db/lib/python/gppylib/commands/unix.py", line 338, in __init__
    addrinfo = socket.getaddrinfo(hostToPing, None)
gaierror: [Errno -2] Name or service not known
20150302:19:32:30:004960 gpstart:NHD7:h-user-[DEBUG]:-WorkerPool haltWork()
20150302:19:32:30:004960 gpstart:NHD7:h-user-[DEBUG]:-[worker0] haltWork
20150302:19:32:30:004960 gpstart:NHD7:h-user-[DEBUG]:-[worker1] haltWork
20150302:19:32:30:004960 gpstart:NHD7:h-user-[DEBUG]:-[worker2] haltWork
20150302:19:32:30:004960 gpstart:NHD7:h-user-[DEBUG]:-[worker3] haltWork
20150302:19:32:30:004960 gpstart:NHD7:h-user-[DEBUG]:-[worker4] haltWork

我不确定发生了什么，也没有在网上找到任何东西。即使是日志文件也没有很多有用的信息

以下是日志文件中的一些行

2015-03-02 16:23:44.484715 PST,"h-user","template1",p2864,th600786688,"127.0.0.1","37265",2015-03-02 16:23:44 PST,669508,,cmd1,seg-1,,,x669508,sx1,"LOG","00000","statement: BEGIN",,,,,,"BEGIN",0,,"postgres.c",1535,
2015-03-02 16:23:44.484931 PST,"h-user","template1",p2864,th600786688,"127.0.0.1","37265",2015-03-02 16:23:44 PST,669508,,cmd2,seg-1,,,x669508,sx1,"LOG","00000","statement: SET CLIENT_MIN_MESSAGES='ERROR'",,,,,,"SET CLIENT_MIN_MESSAGES='ERROR'",0,,"postgres.c",1535,
2015-03-02 16:23:44.485085 PST,"h-user","template1",p2864,th600786688,"127.0.0.1","37265",2015-03-02 16:23:44 PST,669508,,cmd3,seg-1,,,x669508,sx1,"LOG","00000","statement: COMMIT",,,,,,"COMMIT",0,,"postgres.c",1535,
2015-03-02 16:23:44.485255 PST,"h-user","template1",p2864,th600786688,"127.0.0.1","37265",2015-03-02 16:23:44 PST,669509,,cmd4,seg-1,,,x669509,sx1,"LOG","00000","statement: BEGIN",,,,,,"BEGIN",0,,"postgres.c",1535,
2015-03-02 16:23:44.485434 PST,"h-user","template1",p2864,th600786688,"127.0.0.1","37265",2015-03-02 16:23:44 PST,669509,,cmd5,seg-1,,,x669509,sx1,"LOG","00000","statement: SELECT procpid FROM pg_stat_activity WHERE procpid != pg_backend_pid()",,,,,,"SELECT procpid FROM pg_stat_activity WHERE procpid != pg_backend_pid()",0,,"postgres.c",1535,
2015-03-02 16:23:44.487916 PST,"h-user","template1",p2864,th600786688,"127.0.0.1","37265",2015-03-02 16:23:44 PST,669509,,cmd7,seg-1,,,x669509,sx1,"LOG","00000","statement: SELECT typname, typlen FROM pg_type WHERE oid=23",,,,,,"SELECT typname, typlen FROM pg_type WHERE oid=23",0,,"postgres.c",1535,
2015-03-02 16:23:44.503684 PST,,,p2837,th600786688,,,,0,,,seg-1,,,,,"LOG","00000","received fast shutdown request",,,,,,,0,,"postmaster.c",4164,
2015-03-02 16:23:44.504823 PST,,,p2842,th600786688,,,,0,,,seg-1,,,,,"LOG","00000","shutting down",,,,,,,0,,"xlog.c",8265,
2015-03-02 16:23:44.511021 PST,,,p2842,th600786688,,,,0,,,seg-1,,,,,"LOG","00000","database system is shut down",,,,,,,0,,"xlog.c",8287,

有什么想法吗？？

【参考方案1】：

问题不在于 Greenplum，失败的命令是 socket.getaddrinfo(hostToPing, None)。很可能你的机器上有 selinux runnign，禁用它

【讨论】：

我通过在 /etc/hosts 文件中添加映射解决了这个问题

【参考方案2】：

所以我通过向 /etc/hosts 文件添加映射解决了这个问题。我不知道是什么破坏了它，但它现在可以工作

参考：- https://support.pivotal.io/hc/communities/public/questions/203012917-cannot-start-greenplum-gpstart-failed