Add NCService documentation for compiler.parallelism.
Change-Id: I00ffcc402238479d67f22a81e97081ea313d9f99
Reviewed-on: https://asterix-gerrit.ics.uci.edu/1407
Sonar-Qube: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
BAD: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Till Westmann <tillw@apache.org>
diff --git a/asterixdb/asterix-doc/src/site/markdown/ncservice.md b/asterixdb/asterix-doc/src/site/markdown/ncservice.md
index 6aac34c..bdcfab5 100644
--- a/asterixdb/asterix-doc/src/site/markdown/ncservice.md
+++ b/asterixdb/asterix-doc/src/site/markdown/ncservice.md
@@ -140,7 +140,7 @@
| metadata.registration.timeout.secs | The time out threshold (in seconds) for metadata node registration | 60 |
| port | The port for the NCService that starts the slave process | N/A |
| storagedir | The directory for storage files | N/A |
-| storage.buffercache.maxopenfiles | The maximum number of open files for the buffer cache. Note that this is the parameter for the AsterixDB <br/> and setting the operating system parameter is still required. | 2147483647 |
+| storage.buffercache.maxopenfiles | The maximum number of open files for the buffer cache. Note that this is the parameter for the AsterixDB and setting the operating system parameter is still required. | 2147483647 |
| storage.buffercache.pagesize | The page size (in bytes) for the disk buffer cache (for reads) | 131072 |
| storage.buffercache.size | The overall budget (in bytes) of the disk buffer cache (for reads) | 536870912 |
| storage.lsm.bloomfilter.falsepositiverate | The false positive rate for the bloom filter for each memory/disk components | 0.01 |
@@ -169,3 +169,4 @@
| compiler.groupmemory | The memory budget (in bytes) for a group by operator instance in a partition | 33554432 |
| compiler.joinmemory | The memory budget (in bytes) for a join operator instance in a partition | 33554432 |
| compiler.sortmemory | The memory budget (in bytes) for a sort operator instance in a partition | 33554432 |
+| compiler.parallelism | The degree of parallelism for query execution. Zero means to use the storage parallelism as the query execution parallelism, while other integer values dictate the number of query execution parallel partitions. The system will fall back to use the number of all available CPU cores in the cluster as the degree of parallelism if the number set by a user is too large or too small. | 0 |