couch_view_index_updater terminating with core dumps


We have observed that couch_view_index_updater is crashing at regular intervals.
4 node cluster: 2 cores, 8 GB each
bucket is allocated 2 GB * 4 = 8 GB.
We are pushing 8 per second items to couchbase continiuosly 24/7 (each item is of ~1 MB size).
we have 1 bucket. Bucket has 6 design docs and 24 views. 4 buckets has 1 view each and other 2 design
docs have 10 views each.
We emit very very huge data per item from map/reduce.
21 views emit around 10000 KV pairs for each input document.

Any particular reason indexer is crashing ? it restarts automatically though.

couchbase]# gdb -c core.6731
GNU gdb (GDB) Amazon Linux (7.6.1-51.24.amzn1)
Copyright © 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and “show warranty” for details.
This GDB was configured as “x86_64-amazon-linux-gnu”.
For bug reporting instructions, please see:
[New LWP 6741]
[New LWP 6736]
[New LWP 6733]
[New LWP 6737]
[New LWP 6731]
Missing separate debuginfo for the main executable file
Try: yum --enablerepo=‘debug’ install /usr/lib/debug/.build-id/00/2d878a64b2e42cdba05b4dde0654f4f7664e6d
Core was generated by `/opt/couchbase/bin/couch_view_index_updater’.
Program terminated with signal 6, Aborted.
#0 0x00007f816d1ebbe9 in ?? ()