Yiqun Lin created HDFS-13831:
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Summary: Make block increment deletion number configurable
Key: HDFS-13831
URL: https://issues.apache.org/jira/browse/HDFS-13831
Project: Hadoop HDFS
Issue Type: Improvement
Affects Versions: 3.1.0
Reporter: Yiqun Lin
When NN deletes a large directory, it will hold the write lock long time. For
improving this, we remove the blocks in a batch way. So that other waiters have
a chance to get the lock. But right now, the batch number is a hard-coded value.
{code}
static int BLOCK_DELETION_INCREMENT = 1000;
{code}
We can make this value configurable, so that we can control the frequency of
other waiters to get the lock chance.
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