We currently cause an error to be thrown by trying to list a
non-existent directory. We see that the master region directory exists
on the filesystem, but forget to make sure that the master region's WAL
directory also exists before we try to list it.
Signed-off-by: Rushabh Shah <shahrs87@gmail.com>
Signed-off-by: Duo Zhang <zhangduo@apache.org>
(cherry picked from commit b9b7fec57f9de5407c63467780f454345963c2a0)
ZStandard supports initialization of compressors and decompressors with a
precomputed dictionary, which can dramatically improve and speed up compression
of tables with small values. For more details, please see
The Case For Small Data Compression
https://github.com/facebook/zstd#the-case-for-small-data-compression
Signed-off-by: Duo Zhang <zhangduo@apache.org>
Conflicts:
hbase-compression/hbase-compression-zstd/src/main/java/org/apache/hadoop/hbase/io/compress/zstd/ZstdCodec.java
A regression was introduced by HBASE-25847 which changed regionInfo#isParentSplit
to regionState#isSplit. The region state after restart is CLOSED instead of SPLIT.
We need to check both regionState and regionInfo for split status.
Signed-off-by: Viraj Jasani <vjasani@apache.org>
We get and retain Compressor instances in HFileBlockDefaultEncodingContext,
and could in theory call Compressor#reinit when setting up the context,
to update compression parameters like level and buffer size, but we do
not plumb through the CompoundConfiguration from the Store into the
encoding context. As a consequence we can only update codec parameters
globally in system site conf files.
Fine grained configurability is important for algorithms like ZStandard
(ZSTD), which offers more than 20 compression levels, where at level 1
it is almost as fast as LZ4, and where at higher levels it utilizes
computationally expensive techniques to rival LZMA at compression ratio
but trades off significantly for reduced compresson throughput. The ZSTD
level that should be set for a given column family or table will vary by
use case.
Signed-off-by: Viraj Jasani <vjasani@apache.org>
Conflicts:
hbase-compression/hbase-compression-zstd/src/main/java/org/apache/hadoop/hbase/io/compress/zstd/ZstdDecompressor.java
hbase-server/src/test/java/org/apache/hadoop/hbase/io/compress/HFileTestBase.java
hbase-server/src/test/java/org/apache/hadoop/hbase/io/encoding/TestDataBlockEncoders.java
hbase-server/src/test/java/org/apache/hadoop/hbase/io/encoding/TestSeekToBlockWithEncoders.java
Reduce the frequency of allocation failed traces by printing them
preiodically (once per minute). Record the allocation failures in the
Bucket Cache Stats and let the stat thread dump cumulative allocation
failures alongside other traces it dumps.
Also, this change adds trace for the Table name, Column Family and
HFileName for the most recent allocation failure in last 1 minute.
Signed-off-by: Anoop <anoopsamjohn@apache.org>
This change introduces provided compression codecs to HBase as
new Maven modules. Each module provides compression codec support
that formerly required Hadoop native codecs, which in turn relies
on native code integration, which may or may not be available on
a given hardware platform or in an operational environment. We
now provide codecs in the HBase distribution for users whom for
whatever reason cannot or do not wish to deploy the Hadoop native
codecs.
Signed-off-by: Duo Zhang <zhangduo@apache.org>
Signed-off-by: Viraj Jasani <vjasani@apache.org>
Conflicts:
hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileEncryption.java
hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileSeek.java
hbase-server/src/test/java/org/apache/hadoop/hbase/wal/TestCompressedWAL.java
