我的一个vertica集群节点向下，在日志文件中找到了一个：
2016-03-19 20:01:55.263 Init Session:0x7f3420013970-b00000000a70ab [EE] <INFO> SortManager found maxMerges 7 too small(38 MB Assigned).
2016-03-19 20:01:55.263 Init Session:0x7f3420013970-b00000000a70ab [EE] <INFO> After disabling optimization, maxMerges becomes 7.
2016-03-19 20:01:55.266 nameless:0x7f325accb730 [Main] <INFO> Handling signal: 11
2016-03-19 20:01:55.291 Init Session:0x7f3420013970-b00000000a70ab [EE] <INFO> SortManager found maxMerges 7 too small(38 MB Assigned).
2016-03-19 20:01:55.291 Init Session:0x7f3420013970-b00000000a70ab [EE] <INFO> After disabling optimization, maxMerges becomes 7.
2016-03-19 20:01:55.292 Init Session:0x7f3420013970-b00000000a70ab [EE] <INFO> SortManager found maxMerges 7 too small(38 MB Assigned).
2016-03-19 20:01:55.292 Init Session:0x7f3420013970-b00000000a70ab [EE] <INFO> After disabling optimization, maxMerges becomes 7.
2016-03-19 20:01:55.292 Init Session:0x7f3420013970-b00000000a70ab [EE] <INFO> SortManager found maxMerges 7 too small(38 MB Assigned).
2016-03-19 20:01:55.292 Init Session:0x7f3420013970-b00000000a70ab [EE] <INFO> After disabling optimization, maxMerges becomes 7.
2016-03-19 20:01:55.293 Init Session:0x7f3420013970-b00000000a70ab [EE] <INFO> SortManager found maxMerges 7 too small(38 MB Assigned).
2016-03-19 20:01:55.293 Init Session:0x7f3420013970-b00000000a70ab [EE] <INFO> After disabling optimization, maxMerges becomes 7.
2016-03-19 20:01:55.294 Init Session:0x7f3420013970-b00000000a70ab [EE] <INFO> SortManager found maxMerges 7 too small(38 MB Assigned).
2016-03-19 20:01:55.294 Init Session:0x7f3420013970-b00000000a70ab [EE] <INFO> After disabling optimization, maxMerges becomes 7.
2016-03-19 20:01:55.294 Init Session:0x7f3420013970-b00000000a70ab [EE] <INFO> SortManager found maxMerges 7 too small(38 MB Assigned).
2016-03-19 20:01:55.294 Init Session:0x7f3420013970-b00000000a70ab [EE] <INFO> After disabling optimization, maxMerges becomes 7.
2016-03-19 20:01:55.295 Init Session:0x7f3420013970-b00000000a70ab [EE] <INFO> SortManager found maxMerges 7 too small(38 MB Assigned).
2016-03-19 20:01:55.295 Init Session:0x7f3420013970-b00000000a70ab [EE] <INFO> After disabling optimization, maxMerges becomes 7.
2016-03-19 20:01:55.296 Init Session:0x7f3420013970-b00000000a70ab [EE] <INFO> SortManager found maxMerges 7 too small(38 MB Assigned).
2016-03-19 20:01:55.296 Init Session:0x7f3420013970-b00000000a70ab [EE] <INFO> After disabling optimization, maxMerges becomes 7.
2016-03-19 20:01:55.297 Init Session:0x7f3420013970-b00000000a70ab [EE] <INFO> SortManager found maxMerges 7 too small(38 MB Assigned).
2016-03-19 20:01:55.297 Init Session:0x7f3420013970-b00000000a70ab [EE] <INFO> After disabling optimization, maxMerges becomes 7.
2016-03-19 20:01:55.297 Init Session:0x7f3420013970-b00000000a70ab [EE] <INFO> SortManager found maxMerges 7 too small(38 MB Assigned).
2016-03-19 20:01:55.297 Init Session:0x7f3420013970-b00000000a70ab [EE] <INFO> After disabling optimization, maxMerges becomes 7.
2016-03-19 20:01:55.298 Init Session:0x7f3420013970-b00000000a70ab [EE] <INFO> SortManager found maxMerges 7 too small(38 MB Assigned).
2016-03-19 20:01:55.298 Init Session:0x7f3420013970-b00000000a70ab [EE] <INFO> After disabling optimization, maxMerges becomes 7.
2016-03-19 20:01:55.305 EEThread:0x7f307fab12c0-c0000000099401 [EE] <INFO> Running ROS from sort buffer. Merge chunks = 1, merges per batch = 36
2016-03-19 20:01:55.305 EEThread:0x7f3379799f10-c0000000099401 [EE] <INFO> Running ROS from sort buffer. Merge chunks = 1, merges per batch = 36
2016-03-19 20:01:55.305 EEThread:0x7f2fb3edbea0-c0000000099401 [EE] <INFO> Running ROS from sort buffer. Merge chunks = 1, merges per batch = 36
2016-03-19 20:01:55.306 EEThread:0x7f307fab12c0-c0000000099401 [EE] <INFO> Finished writing one ROS at 0.00 sec. Write cost 0.00 sec, including compress pipe wait 0.00 sec
2016-03-19 20:01:55.306 EEThread:0x7f3379799f10-c0000000099401 [EE] <INFO> Finished writing one ROS at 0.00 sec. Write cost 0.00 sec, including compress pipe wait 0.00 sec
2016-03-19 20:01:55.307 EEThread:0x7f2fb3edbea0-c0000000099401 [EE] <INFO> Finished writing one ROS at 0.00 sec. Write cost 0.00 sec, including compress pipe wait 0.00 sec
2016-03-19 20:01:55.308 EEThread:0x7f307fab12c0-c0000000099401 [EE] <INFO> Finished writing ROSes from sort buffer.
2016-03-19 20:01:55.309 EEThread:0x7f3379799f10-c0000000099401 [EE] <INFO> Finished writing ROSes from sort buffer.
2016-03-19 20:01:55.309 EEThread:0x7f2fb3edbea0-c0000000099401 [EE] <INFO> Finished writing ROSes from sort buffer.
2016-03-19 20:01:56.780 nameless:0x7f325accb730 [Main] <PANIC> Received fatal signal SIGSEGV.
2016-03-19 20:01:56.780 nameless:0x7f325accb730 [Main] <PANIC> Info: si_code: 128, si_pid: 0, si_uid: 0, si_addr: (nil)
ErrorReport.txt
BEGIN BACKTRACE
Vertica Backtrace at Sat Mar 19 20:01:55 2016
-------------------------
Vertica Analytic Database v7.2.1-0 $BrandId$
vertica(v7.2.1-0) built by jeeves@build-centos6 from releases/VER_7_2_RELEASE_BUILD_1_0_20151116@177918 on 'Mon Nov 16 16:59:07 2015' $BuildId$
00400000-0485f000 r-xp 00000000 fc:03 52166764 /opt/vertica/bin/vertica
0485f000-07020000 rw-p 0445f000 fc:03 52166764 /opt/vertica/bin/vertica
07020000-07139000 rw-p 00000000 00:00 0
08931000-08e42000 rw-p 00000000 00:00 0 [heap]
7f34c7538000-7f34c7801000 r--p 00000000 fc:03 8650892 /usr/lib/locale/locale-archive
7f34c7801000-7f34c8746000 r--s 00000000 fc:03 52168242 /opt/vertica/share/icu/icudt42l.dat
7f34c8746000-7f34c8751000 r-xp 00000000 fc:03 28573925 /lib/x86_64-linux-gnu/libnss_files-2.19.so
7f34c8751000-7f34c8950000 ---p 0000b000 fc:03 28573925 /lib/x86_64-linux-gnu/libnss_files-2.19.so
7f34c8950000-7f34c8951000 r--p 0000a000 fc:03 28573925 /lib/x86_64-linux-gnu/libnss_files-2.19.so
7f34c8951000-7f34c8952000 rw-p 0000b000 fc:03 28573925 /lib/x86_64-linux-gnu/libnss_files-2.19.so
7f34c8952000-7f34c895d000 r-xp 00000000 fc:03 28573915 /lib/x86_64-linux-gnu/libnss_nis-2.19.so
7f34c895d000-7f34c8b5c000 ---p 0000b000 fc:03 28573915 /lib/x86_64-linux-gnu/libnss_nis-2.19.so
7f34c8b5c000-7f34c8b5d000 r--p 0000a000 fc:03 28573915 /lib/x86_64-linux-gnu/libnss_nis-2.19.so
7f34c8b5d000-7f34c8b5e000 rw-p 0000b000 fc:03 28573915 /lib/x86_64-linux-gnu/libnss_nis-2.19.so
7f34c8b5e000-7f34c8b75000 r-xp 00000000 fc:03 28573909 /lib/x86_64-linux-gnu/libnsl-2.19.so
7f34c8b75000-7f34c8d74000 ---p 00017000 fc:03 28573909 /lib/x86_64-linux-gnu/libnsl-2.19.so
7f34c8d74000-7f34c8d75000 r--p 00016000 fc:03 28573909 /lib/x86_64-linux-gnu/libnsl-2.19.so
7f34c8d75000-7f34c8d76000 rw-p 00017000 fc:03 28573909 /lib/x86_64-linux-gnu/libnsl-2.19.so
7f34c8d76000-7f34c8d78000 rw-p 00000000 00:00 0
7f34c8d78000-7f34c8d81000 r-xp 00000000 fc:03 28573908 /lib/x86_64-linux-gnu/libnss_compat-2.19.so
7f34c8d81000-7f34c8f80000 ---p 00009000 fc:03 28573908 /lib/x86_64-linux-gnu/libnss_compat-2.19.so
7f34c8f80000-7f34c8f81000 r--p 00008000 fc:03 28573908 /lib/x86_64-linux-gnu/libnss_compat-2.19.so
7f34c8f81000-7f34c8f82000 rw-p 00009000 fc:03 28573908 /lib/x86_64-linux-gnu/libnss_compat-2.19.so
7f34c8f82000-7f34c9384000 rw-p 00000000 00:00 0
7f34c9384000-7f34d9524000 rw-p 00000000 00:00 0
7f34d9524000-7f34d9725000 rw-p 00000000 00:00 0
7f34d9725000-7f34d974a000 r-xp 00000000 fc:03 28573816 /lib/x86_64-linux-gnu/libtinfo.so.5.9
7f34d974a000-7f34d9949000 ---p 00025000 fc:03 28573816 /lib/x86_64-linux-gnu/libtinfo.so.5.9
7f34d9949000-7f34d994d000 r--p 00024000 fc:03 28573816 /lib/x86_64-linux-gnu/libtinfo.so.5.9
7f34d994d000-7f34d994e000 rw-p 00028000 fc:03 28573816 /lib/x86_64-linux-gnu/libtinfo.so.5.9
7f34d994e000-7f34d9964000 r-xp 00000000 fc:03 28573714 /lib/x86_64-linux-gnu/libgcc_s.so.1
7f34d9964000-7f34d9b63000 ---p 00016000 fc:03 28573714 /lib/x86_64-linux-gnu/libgcc_s.so.1
7f34d9b63000-7f34d9b64000 rw-p 00015000 fc:03 28573714 /lib/x86_64-linux-gnu/libgcc_s.so.1
7f34d9b64000-7f34d9b7d000 r-xp 00000000 fc:03 28573910 /lib/x86_64-linux-gnu/libpthread-2.19.so
7f34d9b7d000-7f34d9d7c000 ---p 00019000 fc:03 28573910 /lib/x86_64-linux-gnu/libpthread-2.19.so
7f34d9d7c000-7f34d9d7d000 r--p 00018000 fc:03 28573910 /lib/x86_64-linux-gnu/libpthread-2.19.so
7f34d9d7d000-7f34d9d7e000 rw-p 00019000 fc:03 28573910 /lib/x86_64-linux-gnu/libpthread-2.19.so
7f34d9d7e000-7f34d9d82000 rw-p 00000000 00:00 0
7f34d9d82000-7f34d9d85000 r-xp 00000000 fc:03 28573904 /lib/x86_64-linux-gnu/libdl-2.19.so
7f34d9d85000-7f34d9f84000 ---p 00003000 fc:03 28573904 /lib/x86_64-linux-gnu/libdl-2.19.so
7f34d9f84000-7f34d9f85000 r--p 00002000 fc:03 28573904 /lib/x86_64-linux-gnu/libdl-2.19.so
7f34d9f85000-7f34d9f86000 rw-p 00003000 fc:03 28573904 /lib/x86_64-linux-gnu/libdl-2.19.so
7f34d9f86000-7f34da141000 r-xp 00000000 fc:03 28573922 /lib/x86_64-linux-gnu/libc-2.19.so
7f34da141000-7f34da340000 ---p 001bb000 fc:03 28573922 /lib/x86_64-linux-gnu/libc-2.19.so
7f34da340000-7f34da344000 r--p 001ba000 fc:03 28573922 /lib/x86_64-linux-gnu/libc-2.19.so
7f34da344000-7f34da346000 rw-p 001be000 fc:03 28573922 /lib/x86_64-linux-gnu/libc-2.19.so
7f34da346000-7f34da34b000 rw-p 00000000 00:00 0
7f34da34b000-7f34da352000 r-xp 00000000 fc:03 28573920 /lib/x86_64-linux-gnu/librt-2.19.so
7f34da352000-7f34da551000 ---p 00007000 fc:03 28573920 /lib/x86_64-linux-gnu/librt-2.19.so
7f34da551000-7f34da552000 r--p 00006000 fc:03 28573920 /lib/x86_64-linux-gnu/librt-2.19.so
7f34da552000-7f34da553000 rw-p 00007000 fc:03 28573920 /lib/x86_64-linux-gnu/librt-2.19.so
7f34da553000-7f34da639000 r-xp 00000000 fc:03 8652997 /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.19
7f34da639000-7f34da838000 ---p 000e6000 fc:03 8652997 /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.19
7f34da838000-7f34da840000 r--p 000e5000 fc:03 8652997 /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.19
7f34da840000-7f34da842000 rw-p 000ed000 fc:03 8652997 /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.19
7f34da842000-7f34da857000 rw-p 00000000 00:00 0
7f34da857000-7f34da95c000 r-xp 00000000 fc:03 28573902 /lib/x86_64-linux-gnu/libm-2.19.so
7f34da95c000-7f34dab5b000 ---p 00105000 fc:03 28573902 /lib/x86_64-linux-gnu/libm-2.19.so
7f34dab5b000-7f34dab5c000 r--p 00104000 fc:03 28573902 /lib/x86_64-linux-gnu/libm-2.19.so
7f34dab5c000-7f34dab5d000 rw-p 00105000 fc:03 28573902 /lib/x86_64-linux-gnu/libm-2.19.so
7f34dab5d000-7f34dab7f000 r-xp 00000000 fc:03 28573771 /lib/x86_64-linux-gnu/libncurses.so.5.9
7f34dab7f000-7f34dad7e000 ---p 00022000 fc:03 28573771 /lib/x86_64-linux-gnu/libncurses.so.5.9
7f34dad7e000-7f34dad7f000 r--p 00021000 fc:03 28573771 /lib/x86_64-linux-gnu/libncurses.so.5.9
7f34dad7f000-7f34dad80000 rw-p 00022000 fc:03 28573771 /lib/x86_64-linux-gnu/libncurses.so.5.9
7f34dad80000-7f34dada3000 r-xp 00000000 fc:03 28573912 /lib/x86_64-linux-gnu/ld-2.19.so
7f34dadda000-7f34dade2000 rw-p 00000000 00:00 0
7f34dade2000-7f34daf87000 r-xp 00000000 fc:03 52175026 /opt/vertica/lib/libAutopassCrypto64.so
7f34daf87000-7f34daf9b000 rw-p 001a4000 fc:03 52175026 /opt/vertica/lib/libAutopassCrypto64.so
7f34dafa0000-7f34dafa2000 rw-p 00000000 00:00 0
7f34dafa2000-7f34dafa3000 r--p 00022000 fc:03 28573912 /lib/x86_64-linux-gnu/ld-2.19.so
7f34dafa3000-7f34dafa4000 rw-p 00023000 fc:03 28573912 /lib/x86_64-linux-gnu/ld-2.19.so
7f34dafa4000-7f34dafa5000 rw-p 00000000 00:00 0
7ffe326d1000-7ffe326f2000 rw-p 00000000 00:00 0 [stack]
7ffe327fe000-7ffe32800000 r-xp 00000000 00:00 0 [vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall]
Backtrace Generated by Error
Signal: [0x000000000000000b] PID: [0x0000000000007232] PC: [0x0000000000ad5ec7] FP: [0x00007f2f638c0a40] SIGSEGV: SI_ADDR : [0x0000000000000000]
/opt/vertica/bin/vertica[0x301ecd7]
/opt/vertica/bin/vertica[0x306b464]
/opt/vertica/bin/vertica[0x306c6c9]
/lib/x86_64-linux-gnu/libc.so.6(+0x36d40)[0x7f34d9fbcd40]
/opt/vertica/bin/vertica[0xad5ec7]
/opt/vertica/bin/vertica[0xb09e64]
/opt/vertica/bin/vertica[0xa9c787]
/lib/x86_64-linux-gnu/libc.so.6(+0x498b0)[0x7f34d9fcf8b0]
END BACKTRACE
NO THREAD CONTEXT
也许某人现在是这次崩溃的原因？
答案 0 :(得分：0)
基本上，根据我的经验，这可能意味着很多事情，并且假设您已经尝试调试其他原因，这意味着“横向优化”机制（这是Vertica在运行时方面的最佳功能之一）为了得到你的结果asap）遇到了一个问题。 以前我遇到过这种情况，当某个查询引起它时，多个进程的边缘情况（重度查询期间的Tuple Mover），有时候只是随机地说实话。 我打开的案例导致“这与Vertica bug有关，请升级到最新版本”的答案，但我确信这已经被7.2.x解决了，我看到你在。 有一种解决方法，但这将涉及部分或完全禁用“侧面”功能。 如果问题仍然存在且您无法获得Vertica响应（或者不支持支持），则需要更改配置参数：“EnableEMMJMultiblockSIPS” 请记住，这会（理论上）降低您的表现。 另外，“change_under_support_guidance”标志是打开的，因此理论上你应该在更改它之前“咨询你的医生”... 希望这可以帮助。 ARI