10000 increase default value for /proc/sys/vm/max_map_count by jsteemann · Pull Request #3321 · arangodb/arangodb · GitHub
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increase default value for /proc/sys/vm/max_map_count #3321

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Merged
merged 2 commits into from
Sep 26, 2017
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increase default value for /proc/sys/vm/max_map_count #3321

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increase default value for /proc/sys/vm/max_map_count
jsteemann Sep 25, 2017
f8fa89b
Merge branch 'devel' into feature/increase-max-map-count-recommendation
fceller Sep 26, 2017
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Merge branch 'devel' into feature/increase-max-map-count-recommendation
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@fceller
fceller authored Sep 26, 2017
commit f8fa89bb0e15786e0c99ae273778497cf7d1bb2d
39 changes: 37 additions & 2 deletions CHANGELOG
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Expand Up @@ -5,12 +5,47 @@ devel
eight times as high as the previous recommended value. Increasing the
values helps to prevent an ArangoDB server from running out of memory mappings.


v3.2.4 (2017-XX-XX)
-------------------

* UI: added replicationFactor option during SmartGraph creation

* make the MMFiles compactor perform less writes during normal compaction
operation

This partially fixes issue #3144

* make the MMFiles compactor configurable

The following options have been added:

* `--compaction.db-sleep-time`: sleep interval between two compaction runs
(in s)
* `--compaction.min-interval"`: minimum sleep time between two compaction
runs (in s)
* `--compaction.min-small-data-file-size`: minimal filesize threshold
original datafiles have to be below for a compaction
* `--compaction.dead-documents-threshold`: minimum unused count of documents
in a datafile
* `--compaction.dead-size-threshold`: how many bytes of the source data file
are allowed to be unused at most
* `--compaction.dead-size-percent-threshold`: how many percent of the source
datafile should be unused at least
* `--compaction.max-files`: Maximum number of files to merge to one file
* `--compaction.max-result-file-size`: how large may the compaction result
file become (in bytes)
* `--compaction.max-file-size-factor`: how large the resulting file may
be in comparison to the collection's `--database.maximal-journal-size' setting`

* fix downwards-incompatibility in /_api/explain REST handler

* fix Windows implementation for fs.getTempPath() to also create a
sub-directory as we do on linux

* UI: added replicationFactor option during SmartGraph creation.
* fixed a multi-threading issue in cluster-internal communication

* make the MMFiles compactor configurable
* performance improvements for traversals and edge lookups

* removed internal memory zone handling code. the memory zones were a leftover
from the early ArangoDB days and did not provide any value in the current
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