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https://issues.apache.org/jira/browse/HBASE-28448?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17829708#comment-17829708
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Wei-Chiu Chuang commented on HBASE-28448:
-----------------------------------------
Another bug is in side HBase CompressionTest: the test should close FileSystem
object properly.
> CompressionTest hangs when run over a Ozone ofs path
> ----------------------------------------------------
>
> Key: HBASE-28448
> URL: https://issues.apache.org/jira/browse/HBASE-28448
> Project: HBase
> Issue Type: Bug
> Reporter: Pratyush Bhatt
> Assignee: Wei-Chiu Chuang
> Priority: Major
> Labels: ozone
> Attachments: hbase_ozone_compression.jstack
>
>
> If we run the Compression test over HDFS path, it works fine:
> {code:java}
> hbase org.apache.hadoop.hbase.util.CompressionTest
> hdfs://ns1/tmp/dir1/dir2/test_file.txt snappy
> 24/03/20 06:08:43 WARN impl.MetricsConfig: Cannot locate configuration: tried
> hadoop-metrics2-hbase.properties,hadoop-metrics2.properties
> 24/03/20 06:08:43 INFO impl.MetricsSystemImpl: Scheduled Metric snapshot
> period at 10 second(s).
> 24/03/20 06:08:43 INFO impl.MetricsSystemImpl: HBase metrics system started
> 24/03/20 06:08:43 INFO metrics.MetricRegistries: Loaded MetricRegistries
> class org.apache.hadoop.hbase.metrics.impl.MetricRegistriesImpl
> 24/03/20 06:08:43 INFO compress.CodecPool: Got brand-new compressor [.snappy]
> 24/03/20 06:08:43 INFO compress.CodecPool: Got brand-new compressor [.snappy]
> 24/03/20 06:08:44 INFO compress.CodecPool: Got brand-new decompressor
> [.snappy]
> SUCCESS {code}
> The command exits, but when the same is tried over a ofs path, the command
> hangs.
> {code:java}
> hbase org.apache.hadoop.hbase.util.CompressionTest
> ofs://ozone1710862004/test-222compression-vol/compression-buck2/test_file.txt
> snappy
> 24/03/20 06:05:19 INFO protocolPB.OmTransportFactory: Loading OM transport
> implementation
> org.apache.hadoop.ozone.om.protocolPB.Hadoop3OmTransportFactory as specified
> by configuration.
> 24/03/20 06:05:20 INFO client.ClientTrustManager: Loading certificates for
> client.
> 24/03/20 06:05:20 WARN impl.MetricsConfig: Cannot locate configuration: tried
> hadoop-metrics2-hbase.properties,hadoop-metrics2.properties
> 24/03/20 06:05:20 INFO impl.MetricsSystemImpl: Scheduled Metric snapshot
> period at 10 second(s).
> 24/03/20 06:05:20 INFO impl.MetricsSystemImpl: HBase metrics system started
> 24/03/20 06:05:20 INFO metrics.MetricRegistries: Loaded MetricRegistries
> class org.apache.hadoop.hbase.metrics.impl.MetricRegistriesImpl
> 24/03/20 06:05:20 INFO rpc.RpcClient: Creating Volume:
> test-222compression-vol, with om as owner and space quota set to -1 bytes,
> counts quota set to -1
> 24/03/20 06:05:20 INFO rpc.RpcClient: Creating Bucket:
> test-222compression-vol/compression-buck2, with bucket layout
> FILE_SYSTEM_OPTIMIZED, om as owner, Versioning false, Storage Type set to
> DISK and Encryption set to false, Replication Type set to server-side default
> replication type, Namespace Quota set to -1, Space Quota set to -1
> 24/03/20 06:05:21 INFO compress.CodecPool: Got brand-new compressor [.snappy]
> 24/03/20 06:05:21 INFO compress.CodecPool: Got brand-new compressor [.snappy]
> 24/03/20 06:05:21 WARN impl.MetricsSystemImpl: HBase metrics system already
> initialized!
> 24/03/20 06:05:21 INFO metrics.MetricRegistries: Loaded MetricRegistries
> class org.apache.ratis.metrics.dropwizard3.Dm3MetricRegistriesImpl
> 24/03/20 06:05:22 INFO compress.CodecPool: Got brand-new decompressor
> [.snappy]
> SUCCESS
> .
> .
> .<It hangs unless exited>{code}
> The command doesnt exit.
> Attaching the jstack of the process below:
> [^hbase_ozone_compression.jstack]
> cc: [~weichiu]
>
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