当发生宕机时，你可以在be.out里找到这样的堆栈，这种是有效的信息
PC: @ 0x25fd94b tcmalloc::CentralFreeList::FetchFromOneSpans()
*** SIGSEGV (@0x0) received by PID 71566 (TID 0x7f46785f8700) from PID 0;
stack trace: ***
@ 0x7f46e6dea5d0 (unknown)
@ 0x25fd94b tcmalloc::CentralFreeList::FetchFromOneSpans()
@ 0x25fdc1c tcmalloc::CentralFreeList::FetchFromOneSpansSafe()
@ 0x25fdd17 tcmalloc::CentralFreeList::RemoveRange()
@ 0x260a1e3 tcmalloc::ThreadCache::FetchFromCentralCache()
@ 0x23c4818
google::protobuf::internal::RepeatedPtrFieldBase::InternalExtend()
@ 0xdaac98 doris::ColumnWriter::finalize()
@ 0xdb5038 doris::DoubleColumnWriterBase<>::finalize()
@ 0xd91adb doris::SegmentWriter::_make_file_header()
@ 0xd9254b doris::SegmentWriter::finalize()
@ 0xd67e76 doris::ColumnDataWriter::_finalize_segment()
@ 0xd694de doris::ColumnDataWriter::finalize()
@ 0xd2db3c doris::SchemaChangeDirectly::process()
@ 0xd3043c doris::SchemaChangeHandler::_alter_table()
@ 0xd340f9 doris::SchemaChangeHandler::_do_alter_table()
@ 0xd35283 doris::SchemaChangeHandler::process_alter_table()
@ 0xcaa28b doris::OLAPEngine::schema_change()
@ 0x11bf8be doris::TaskWorkerPool::_alter_table()
@ 0x11c9a55
doris::TaskWorkerPool::_alter_table_worker_thread_callback()
@ 0x7f46e6de2dd5 start_thread
@ 0x7f46e61e802d __clone
又或者你可以使用gdb得到更详细的代码堆栈
从你目前给出的堆栈中，我没有看到有效的信息
刘波 <270309...@qq.com.invalid> 于2022年3月9日周三 14:59写道：
> 尊敬的开发者，您好：
> 今天be再次异常，其中be.out信息如下
>
>
> gdb结果如下
>
>
>
> ------------------ 原始邮件 ------------------
> *发件人:* "dev" <wangbo13...@gmail.com>;
> *发送时间:* 2022年3月4日(星期五) 中午1:31
> *收件人:* "dev"<dev@doris.apache.org>;
> *主题:* Re: be异常退出
>
> 目前的堆栈看起来不足以支撑做出判断；
> 如果线上有开core dump的话，可以用gdb palo_be core_dump文件看看堆栈
> 后者看下be.out是否进程怪盗时的堆栈
>
> 刘波 <270309...@qq.com.invalid> 于2022年3月4日周五 12:25写道：
>
> > 尊敬的开发者，您好：
> > 我们的doris
> > be节点经常会挂掉其中几个，经分析资源情况正常，具体信息可参见附件，日志层面未发现是OOM，未能定位出异常，请求协助，具体信息如下：
> > *时间： 2022-03-04 10:54:43*
> > doris报错*：detailMessage = tablet 45664199 has few replicas: 1,
> > alive backends: [10004]*
> > 环境信息：华为云cetnos 8 64位，16核64G
> >
> > 系统日志： less /var/log/message（*非OOM*）
> >
> > Mar 4 10:54:38 narwal-doris-be-0004 systemd[1]: Started Process Core
> Dump
> > (PID 1881819/UID 0).
> >
> > Mar 4 10:54:41 narwal-doris-be-0004 systemd-coredump[1881820]: Core file
> > was truncated to 2147483648 bytes.
> >
> > Mar 4 10:55:00 narwal-doris-be-0004 systemd-coredump[1881820]: Process
> > 2800630 (palo_be) of user 0 dumped core.#012#012Stack trace of thread
> > 1877601:#012#0 0x00000000039480a2 memcpy
> >
> > (/mnt/be/lib/palo_be)#012#012Stack trace of thread 2800630:#012#0
> > 0x00007fccb330efc8 n/a (n/a)
> >
> > Mar 4 10:55:01 narwal-doris-be-0004 systemd[1]:
> > systemd-coredump@1-1881819-0.service: Succeeded.
> >
> > Mar 4 10:55:03 narwal-doris-be-0004 systemd[1]: session-12.scope:
> > Succeeded.
> >
> >
> > dump信息：*coredumpctl info 2800630*
> >
> > PID: 2800630 (palo_be)
> > UID: 0 (root)
> > GID: 0 (root)
> > Signal: 11 (SEGV)
> > Timestamp: Fri 2022-03-04 10:54:38 CST (1h 10min ago)
> > Command Line: /mnt/be/lib/palo_be
> > Executable: /mnt/be/lib/palo_be
> > Control Group: /
> > Slice: -.slice
> > Boot ID: ca3ef395d7c547d2aecb1c251097066f
> > Machine ID: 501f93b5c19d4ca38db845c29176e3c5
> > Hostname: narwal-doris-be-0004
> > Storage:
> >
> /var/lib/systemd/coredump/core.palo_be.0.ca3ef395d7c547d2aecb1c251097066f.2800630.1646362478000000.lz4
> > (truncated)
> > Message: Process 2800630 (palo_be) of user 0 dumped core.
> >
> > Stack trace of thread 1877601:
> > #0 0x00000000039480a2 memcpy (/mnt/be/lib/palo_be)
> >
> > Stack trace of thread 2800630:
> > #0 0x00007fccb330efc8 n/a (n/a)
> >
> >
> >
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: dev-unsubscr...@doris.apache.org
> > For additional commands, e-mail: dev-h...@doris.apache.org
>
>
>
> --
> 王博 Wang Bo
>
>
--
王博 Wang Bo
