changehistory

changehistory

@@ -1,3 +1,32 @@
+# Release 0.9.0
+In this version, it will follow storm 0.9.1 interface, so the topology running
+in storm 0.9.0 can run in jstorm without any change.
+
+Stability
+1. provide nimbus HA
+1.1. when the master nimbus shuts down, it will select another online nimbus to 
+     the master. of couse, there is only one master nimbus online at one time and
+     other nimbuses just are synchronousing the master's data.
+2. solve the storm's problem of zeromq's avalanche
+2.1. the RPC is based on netty and disruptor so that the tuples' sending speed will
+	 alway equal to tuples' receiving speed
+3. the data stream is more stable
+3.1. JStrom will not do rebalance when:
+3.1.1. add supervisor
+3.1.2  supervisor shut down
+3.1.3  avaliable workers' num is not enough when you are submiting a new topology
+4. new topology will not affect old topologys
+4.1 new schedule regulation will manage topologys on four dimensions:cpu, mem, disk, net
+4.2 the new topology will not seize old topologys' resource
+5. many bugs fixed
+
+Powerful schedule
+1. based on four dimensions:cpu, mem, disk, net
+2. provide regulation that topology uses historical schedule
+3. provide regulation of user define schedule
+4. provide regulation that topology's tasks run on different supervisor or same supervisor
+
+
 # Release 0.7.1
 In this version, it will follow storm 0.7.1 interface, so the topology running
 in storm 0.7.1 can run in jstorm without any change.
@@ -65,6 +94,4 @@ Enhancement:
 14. skip ack/fail when inputstream setting is empty
 15. add topology name to the log
 16. fix ui select option error, default is 10 minutes
-17. supervisor can display all worker's status
-
-# Release 0.9.0
+17. supervisor can display all worker's status