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HDFS-10297. Increase default balance bandwidth and concurrent moves. Contributed by John Zhuge.

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(cherry picked from commit 6be22ddbf1b6f3c19ec70c63ddb8f5519d18dd72)
This commit is contained in:
Andrew Wang 2016-04-26 13:04:18 -07:00
parent c991beac64
commit 088a78241b
2 changed files with 8 additions and 5 deletions
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9
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
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@ -86,9 +86,12 @@ public class DFSConfigKeys extends CommonConfigurationKeys {
public static final String DFS_NAMENODE_BACKUP_SERVICE_RPC_ADDRESS_KEY = "dfs.namenode.backup.dnrpc-address"; public static final String DFS_NAMENODE_BACKUP_SERVICE_RPC_ADDRESS_KEY = "dfs.namenode.backup.dnrpc-address";
public static final String DFS_DATANODE_BALANCE_BANDWIDTHPERSEC_KEY = public static final String DFS_DATANODE_BALANCE_BANDWIDTHPERSEC_KEY =
HdfsClientConfigKeys.DeprecatedKeys.DFS_DATANODE_BALANCE_BANDWIDTHPERSEC_KEY; HdfsClientConfigKeys.DeprecatedKeys.DFS_DATANODE_BALANCE_BANDWIDTHPERSEC_KEY;
public static final long DFS_DATANODE_BALANCE_BANDWIDTHPERSEC_DEFAULT = 1024*1024; public static final long DFS_DATANODE_BALANCE_BANDWIDTHPERSEC_DEFAULT =
public static final String DFS_DATANODE_BALANCE_MAX_NUM_CONCURRENT_MOVES_KEY = "dfs.datanode.balance.max.concurrent.moves"; 10 * 1024*1024;
public static final int DFS_DATANODE_BALANCE_MAX_NUM_CONCURRENT_MOVES_DEFAULT = 5; public static final String DFS_DATANODE_BALANCE_MAX_NUM_CONCURRENT_MOVES_KEY
= "dfs.datanode.balance.max.concurrent.moves";
public static final int
DFS_DATANODE_BALANCE_MAX_NUM_CONCURRENT_MOVES_DEFAULT = 50;
@Deprecated @Deprecated
public static final String DFS_DATANODE_READAHEAD_BYTES_KEY = public static final String DFS_DATANODE_READAHEAD_BYTES_KEY =
HdfsClientConfigKeys.DFS_DATANODE_READAHEAD_BYTES_KEY; HdfsClientConfigKeys.DFS_DATANODE_READAHEAD_BYTES_KEY;

4
hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
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@ -856,7 +856,7 @@
<property> <property>
<name>dfs.datanode.balance.bandwidthPerSec</name> <name>dfs.datanode.balance.bandwidthPerSec</name>
<value>1048576</value> <value>10m</value>
<description> <description>
Specifies the maximum amount of bandwidth that each datanode Specifies the maximum amount of bandwidth that each datanode
can utilize for the balancing purpose in term of can utilize for the balancing purpose in term of
@ -3340,7 +3340,7 @@
<property> <property>
<name>dfs.datanode.balance.max.concurrent.moves</name> <name>dfs.datanode.balance.max.concurrent.moves</name>
<value>5</value> <value>50</value>
<description> <description>
Maximum number of threads for Datanode balancer pending moves. This Maximum number of threads for Datanode balancer pending moves. This
value is reconfigurable via the "dfsadmin -reconfig" command. value is reconfigurable via the "dfsadmin -reconfig" command.