jt2594838 commented on a change in pull request #258: [IOTDB-143]Development of 
merge
URL: https://github.com/apache/incubator-iotdb/pull/258#discussion_r314565013
 
 

 ##########
 File path: server/iotdb/conf/iotdb-engine.properties
 ##########
 @@ -155,7 +155,43 @@ concurrent_flush_thread=0
 
 # whether take over the memory management by IoTDB rather than JVM when 
serializing memtable as bytes in memory
 # (i.e., whether use ChunkBufferPool), value true, false
-chunk_buffer_pool_enable = false
+chunk_buffer_pool_enable=false
+
+####################
+### Merge Configurations
+####################
+
+# How many thread will be set up to perform merges, 1 by default.
+# Set to 1 when less than or equal to 0.
+merge_thread_num=1
+
+# How much memory may be used in ONE merge task (in byte), 20% of maximum JVM 
memory by default.
+# This is only a rough estimation, starting from a relatively small value to 
avoid OOM.
+# Each new merge thread may take such memory, so merge_thread_num * 
merge_memory_budget is the
+# total memory estimation of merge.
+# merge_memory_budget=2147483648
+
+# When set to true, if some crashed merges are detected during system 
rebooting, such merges will
+# be continued, otherwise, the unfinished parts of such merges will not be 
continued while the
+# finished parts still remains as they are.
+# If you are feeling the rebooting is too slow, set this to false, false by 
default
+continue_merge_after_reboot=false
 
 Review comment:
   I think I have written " the unfinished parts of such merges will not be 
continued".

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