Amit Anand created HDFS-10309:
---------------------------------
Summary: HDFS Balancer doesn't honor dfs.blocksize value defined
with suffix k(kilo), m(mega), g(giga)
Key: HDFS-10309
URL: https://issues.apache.org/jira/browse/HDFS-10309
Project: Hadoop HDFS
Issue Type: Bug
Components: balancer & mover
Affects Versions: 2.8.0
Reporter: Amit Anand
Assignee: Amit Anand
While running HDFS Balancer I get error given below when {{dfs.blockSize}} is
defined with suffix {{k(kilo), m(mega), g(giga)}}. In my deployment
{{dfs.blocksize}} is set to {{128m}}.
{code}
hdfs@bcpc-vm1:/home/ubuntu$ hdfs balancer
16/04/19 08:49:51 INFO balancer.Balancer: namenodes = [hdfs://Test-Laptop]
16/04/19 08:49:51 INFO balancer.Balancer: parameters =
Balancer.BalancerParameters [BalancingPolicy.Node, threshold = 10.0, max idle
iteration = 5, #excluded nodes = 0, #included nodes = 0, #source
nodes = 0, #blockpools = 0, run during upgrade = false]
16/04/19 08:49:51 INFO balancer.Balancer: included nodes = []
16/04/19 08:49:51 INFO balancer.Balancer: excluded nodes = []
16/04/19 08:49:51 INFO balancer.Balancer: source nodes = []
Time Stamp Iteration# Bytes Already Moved Bytes Left To Move
Bytes Being Moved
16/04/19 08:49:52 INFO balancer.KeyManager: Block token params received from
NN: update interval=10hrs, 0sec, token lifetime=10hrs, 0sec
16/04/19 08:49:52 INFO block.BlockTokenSecretManager: Setting block keys
16/04/19 08:49:52 INFO balancer.KeyManager: Update block keys every 2hrs,
30mins, 0sec
16/04/19 08:49:52 INFO balancer.Balancer: dfs.balancer.movedWinWidth = 5400000
(default=5400000)
16/04/19 08:49:52 INFO balancer.Balancer: dfs.balancer.moverThreads = 1000
(default=1000)
16/04/19 08:49:52 INFO balancer.Balancer: dfs.balancer.dispatcherThreads = 200
(default=200)
16/04/19 08:49:52 INFO balancer.Balancer:
dfs.datanode.balance.max.concurrent.moves = 5 (default=5)
16/04/19 08:49:52 INFO balancer.Balancer: dfs.balancer.getBlocks.size =
2147483648 (default=2147483648)
16/04/19 08:49:52 INFO balancer.Balancer: dfs.balancer.getBlocks.min-block-size
= 10485760 (default=10485760)
16/04/19 08:49:52 INFO block.BlockTokenSecretManager: Setting block keys
16/04/19 08:49:52 INFO balancer.Balancer: dfs.balancer.max-size-to-move =
10737418240 (default=10737418240)
Apr 19, 2016 8:49:52 AM Balancing took 1.408 seconds
16/04/19 08:49:52 ERROR balancer.Balancer: Exiting balancer due an exception
java.lang.NumberFormatException: For input string: "128m"
at
java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
at java.lang.Long.parseLong(Long.java:589)
at java.lang.Long.parseLong(Long.java:631)
at org.apache.hadoop.conf.Configuration.getLong(Configuration.java:1311)
at
org.apache.hadoop.hdfs.server.balancer.Balancer.getLong(Balancer.java:221)
at
org.apache.hadoop.hdfs.server.balancer.Balancer.<init>(Balancer.java:281)
at
org.apache.hadoop.hdfs.server.balancer.Balancer.run(Balancer.java:660)
at
org.apache.hadoop.hdfs.server.balancer.Balancer$Cli.run(Balancer.java:774)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76)
at
org.apache.hadoop.hdfs.server.balancer.Balancer.main(Balancer.java:903)
{code}
However, the workaround for this is to run {{hdfs balancer}} with passing
numeric value for {{dfs.blocksize}}
{code}
hdfs balancer -Ddfs.blocksize=134217728
{code}
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