[RN 2.0.2] Couchbase continually crashes and restart when Couch bucket is created in OpenVZ environment

creator11 added a comment - 29/Jan/13 4:53 PM Ok I found the fix to this issue. memsup as a previous bug I found was causing a segmentation fault. Upgraded to latest erlang with erlang-os-mon 2.2.10 and issue has been resolved on an OpenVZ container. I just symlinked to the new version for couchbase to use.

creator11 added a comment - 29/Jan/13 5:38 PM Might be handy to add this to a knowledge base for others, since I have found 2 other people that had similar issues on the web in forums.

Chiyoung Seo added a comment - 29/Jan/13 6:40 PM Farshid, Please close the bug if it's not required for the QE verification.

Mike Wiederhold added a comment - 25/Feb/13 5:42 PM This might be good to add to our documentation.

Karen Zeller added a comment - 04/Mar/13 3:43 PM Added to 2.0.1 RN: In OpenVZ Linux containers, the server had crashed and restarted when you created a Couchbase bucket. This was due to an issue in the memsup process from Erlang. To fix this issue, you should upgrade to the latest version of Erlang, and have Couchbase Server use this version.

Karen Zeller added a comment - 04/Mar/13 3:43 PM Added to 2.0.1 RN: In OpenVZ Linux containers, the server had crashed and restarted when you created a Couchbase bucket. This was due to an issue in the memsup process from Erlang. To fix this issue, you should upgrade to the latest version of Erlang, and have Couchbase Server use this version.

Karen Zeller added a comment - 04/Mar/13 6:25 PM See RN 2.0.1 addition. If you reopen, please assign to engineer responsible for fixing.

Thuan Nguyen added a comment - 07/Mar/13 2:20 AM Integrated in ui-testing #11 (See [ http://qa.hq.northscale.net/job/ui-testing/11/ ])      MB-7626 : tune rebalance options during cluster setup (Revision 7c828a6a1de4f7c8fb76265766d3eb53f183fe3e)      Result = SUCCESS pavelpaulau : Files : * pytests/performance/perf.py

Perry Krug added a comment - 20/Mar/13 10:33 AM Karen, can you provide instructions on which version of Erlang to use here and instructions on how to apply the workaround mentioned?

Karen Zeller added a comment - 20/Mar/13 10:38 AM Hi, Can you provide the version of Erlang I Ishould document, and is the workaround just to upgrade to this version? Or are there other steps someone must do in order to upgrade to Erlang using CB? Thanks, Karen

Joseph H. added a comment - 20/Mar/13 10:46 AM - edited I've actually applied the the Workaround for MB-4376 successfully (at least for a development environment) to CB 2.0.1 as I didn't succeed in getting CB to use a entirely different version of Erlang.

Perry Krug added a comment - 21/Mar/13 11:31 AM Note that we have confirmed through another customer that the workaround in mb-4376 is successful. Can this get rolled into 2.0.2?

Karen Zeller added a comment - 21/Mar/13 11:42 AM Hi Perry, confirm this, ignore formatting (will go in release notes, where workarounds, known issues, etc. go): ========= last email from prospect: I’ve solved the problem by compiling memsup with the patch mentioned in http://www.couchbase.com/issues/browse/MB-4376 applied. This patch is included in the R15B01 release of Erlang. Perhaps Issue 4376 shouldn’t be marked fixed until Couchbase is using Erlang R15B01 or later? ========== Existing content: In OpenVZ Linux containers, the server had crashed and restarted when you created a Couchbase bucket. This was due to an issue in the memsup process from Erlang. To fix this issue, you should upgrade to the latest version of Erlang, and have Couchbase Server use this version. Proposed addition: 1) You should stop Couchbase server 2) Make a copy of your original memsup then apply the patch available on GitHub: https://github.com/vorobev/otp/compare/maint-memsup.patch You can also download the following two files and compile yourself: -https://raw.github.com/vorobev/otp/maint-memsup/lib/os_mon/c_src/memsup.c -https://raw.github.com/vorobev/otp/maint-memsup/lib/os_mon/c_src/memsup.h gcc memsup.c -o memsup Place the compiled code in /opt/membase/lib/erlang/lib/os_mon-2.2.5/priv/bin/ 3) Restart Couchbase Server

Perry Krug added a comment - 21/Mar/13 11:58 AM That's fine from a workaround perspective I guess...but my request was more about actually fixing the bug for 2.0.2. I'll add the ns_server component. Thanks

Karen Zeller added a comment - 28/Mar/13 3:52 PM Added content: https://github.com/couchbase/docs/commit/b8094b5c61802fb4b76f0ae6c9f4979c5f1aa6f4

Karen Zeller added a comment - 28/Mar/13 3:52 PM Added content: https://github.com/couchbase/docs/commit/b8094b5c61802fb4b76f0ae6c9f4979c5f1aa6f4

Perry Krug added a comment - 29/Mar/13 4:53 PM Karen, this isn't just about documentation, this is a bug that needs to be fixed in the product.

Maria McDuff added a comment - 16/Apr/13 1:19 PM deferring out of 2.0.2