Song Jiacheng has uploaded this change for review. ( http://gerrit.cloudera.org:8080/20166
Change subject: MM: Give a chance to do other OP while server is under memory pressure ...................................................................... MM: Give a chance to do other OP while server is under memory pressure This patch add an argument to give a chance to do other OP while server is under memory pressure. This mechanism works when the memory usage between memory_pressure_percentage and memory_limit_soft_percentage. The higher memory usage is, this higher probability to do flush MRS/DMS. e.g. memory_pressure_percentage = 60% memory_pressure_percentage = 80% The probability of not flushing MRS/DMS is the value of not_flush_memory_prob, which is 0.2 by default, when the memory usage is 60%. As the memory increases, it gradually decreases to 0, when the memory usage is 80%. Change-Id: Idc2fd3a850cf99d54ef2980211b712468440ed80 --- M src/kudu/util/maintenance_manager-test.cc M src/kudu/util/maintenance_manager.cc M src/kudu/util/maintenance_manager.h 3 files changed, 66 insertions(+), 1 deletion(-) git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/66/20166/1 -- To view, visit http://gerrit.cloudera.org:8080/20166 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: kudu Gerrit-Branch: master Gerrit-MessageType: newchange Gerrit-Change-Id: Idc2fd3a850cf99d54ef2980211b712468440ed80 Gerrit-Change-Number: 20166 Gerrit-PatchSet: 1 Gerrit-Owner: Song Jiacheng <[email protected]>
