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HBASE-11218 Data loss in HBase standalone mode (Liu Shaohui) -- DOC ADDENDUM

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Michael Stack 2014-05-28 10:42:37 -07:00
parent 78f7cd450f
commit b4a2d607a3
1 changed files with 4 additions and 2 deletions
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src/main/docbkx/configuration.xml
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@ -618,8 +618,10 @@ Index: pom.xml
<para>Such a setup, using the local filesystem and writing to the operating systems's <para>Such a setup, using the local filesystem and writing to the operating systems's
temporary directory is an ephemeral setup; the Hadoop local filesystem -- which is what temporary directory is an ephemeral setup; the Hadoop local filesystem -- which is what
HBase uses when it is writing the local filesytem does not support <command>sync</command> HBase uses when it is writing the local filesytem -- would lose data unless the system
so unless the system is shutdown properly, the data will be lost. Writing to the operating was shutdown properly in versions of HBase before 0.98.4 and 1.0.0 (see
<link xlink:href="https://issues.apache.org/jira/browse/HBASE-11218">HBASE-11218 Data
loss in HBase standalone mode</link>). Writing to the operating
system's temporary directory can also make for data loss when the machine is restarted as system's temporary directory can also make for data loss when the machine is restarted as
this directory is usually cleared on reboot. For a more permanent setup, see the next this directory is usually cleared on reboot. For a more permanent setup, see the next
example where we make use of an instance of HDFS; HBase data will be written to the Hadoop example where we make use of an instance of HDFS; HBase data will be written to the Hadoop