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  1. Couchbase Server
  2. MB-39751

Memory growth when processing many metadata operations

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    Description

      There is growth of jemalloc resident memory when indexer performs many metadata operations. Steps to reproduce:

      1. setup 1 node cluster with kv+n1ql+index with MOI and large memory quota.
      2. create 30 indexes with defer build (no need to build indexes).
      3. delete 30 indexes.

      After repeating steps (2) and (3) ~50 times, jemalloc resident memory reaches ~220MB. The attached jemalloc profile (jemalloc-101.prof.svg) shows that most of the memory is allocated by fdb_iterator_init() and fdb_snapshot_open().

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          backports to

          Bug - A problem which impairs or prevents the functions of the product. MB-40127 [BP 6.6] Memory growth when processing many metadata operations

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MB-42947 BP 6.0.x Memory growth when processing many metadata operations

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MB-43039 [BP 6.5.x] Memory growth when processing many metadata operations

          • Major - Major loss of function.
          • Closed
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              bhargava.yadavalli Bhargava Yadavalli (Inactive)
              akhil.mundroy Akhil Mundroy
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                Resolved:

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