I think this is a bug of Result.getValue(byte[], byte[]). I debug and trace the
code, find that the Result is
right, but getValue is wrong.
Result r = htable.get(get);
byte[] res = r.getValue(Bytes.toBytes("f"), Bytes.toBytes("ts"));
In function getColumnLatest() called by geValue, the value kvs is like this:
[com.sohu.www:http//f:fi/1345888370605/Put/vlen=4,
com.sohu.www:http//f:ts/1345888370605/Put/vlen=8,
com.sohu.www:http//ft:1st/1345888370605/Put/vlen=1,
com.sohu.www:http//mk:_injmrk_/1345888370605/Put/vlen=1,
com.sohu.www:http//s:s/1345888370605/Put/vlen=4]
but getColumnLatest("f", "ts") is null;
Does the binarySearch or the KeyValue.COMPARATOR have a bug?
下面是被转发的邮件：
> 发件人: lin weijian <linweiji...@gmail.com>
> 主题: sty wrong with Get operation of hbase client
> 日期: 2012年8月25日格林尼治标准时间+0800下午10时03分26秒
> 收件人: dev@hbase.apache.org
>
> Hi,
> I use hbase client 0.92.1 to get the row, but when Get add all the
> columns and qualifiers, a filed (f:ts) is always return nothing. If Get not
> add column mk or ft , it works right. Is it a bug?
>
>
> The schema as follow:
>
> <table name="webpage">
> <family name="p" maxVersions="1"/> <!-- This can also have params
> like compression, bloom filters -->
> <family name="f" maxVersions="1"/>
> <family name="s" maxVersions="1"/>
> <family name="il" maxVersions="1"/>
> <family name="ol" maxVersions="1"/>
> <family name="h" maxVersions="1"/>
> <family name="mtdt" maxVersions="1"/>
> <family name="mk" maxVersions="1"/>
> <family name="ft" maxVersions="1"/>
> </table>
> <class table="webpage" keyClass="java.lang.String"
> name="org.apache.nutch.storage.WebPage">
>
> <!-- fetch fields -->
> <field name="baseUrl" family="f" qualifier="bas"/>
> <field name="status" family="f" qualifier="st"/>
> <field name="prevFetchTime" family="f" qualifier="pts"/>
> <field name="fetchTime" family="f" qualifier="ts"/>
> <field name="fetchInterval" family="f" qualifier="fi"/>
> <field name="retriesSinceFetch" family="f" qualifier="rsf"/>
> <field name="reprUrl" family="f" qualifier="rpr"/>
> <field name="content" family="f" qualifier="cnt"/>
> <field name="contentType" family="f" qualifier="typ"/>
> <field name="protocolStatus" family="f" qualifier="prot"/>
> <field name="modifiedTime" family="f" qualifier="mod"/>
> <field name="pageType" family="f" qualifier="ptyp"/>
> <field name="level" family="f" qualifier="l"/>
> <field name="lastFetchInterval" family="f" qualifier="lfi"/>
> <field name="newsTime" family="f" qualifier="nts"/>
> <field name="findTime" family="f" qualifier="fts"/>
>
>
> <field name="title" family="p" qualifier="t"/>
> <field name="text" family="p" qualifier="c"/>
> <field name="parseStatus" family="p" qualifier="st"/>
> <field name="signature" family="p" qualifier="sig"/>
> <field name="prevSignature" family="p" qualifier="psig"/>
>
> <!-- score fields -->
> <field name="score" family="s" qualifier="s"/>
> <field name="headers" family="h"/>
> <field name="inlinks" family="il"/>
> <field name="outlinks" family="ol"/>
> <field name="metadata" family="mtdt"/>
> <field name="markers" family="mk"/>
>
> <field name="features" family="ft"/>
> </class>
>
> {"name": "WebPage",
> "type": "record",
> "namespace": "org.apache.nutch.storage",
> "fields": [
> {"name": "baseUrl", "type": "string"},
> {"name": "status", "type": "int"},
> {"name": "fetchTime", "type": "long"},
> {"name": "prevFetchTime", "type": "long"},
> {"name": "fetchInterval", "type": "int"},
> {"name": "retriesSinceFetch", "type": "int"},
> {"name": "modifiedTime", "type": "long"},
> {"name": "protocolStatus", "type": {
> "name": "ProtocolStatus",
> "type": "record",
> "namespace": "org.apache.nutch.storage",
> "fields": [
> {"name": "code", "type": "int"},
> {"name": "args", "type": {"type": "array", "items":
> "string"}},
> {"name": "lastModified", "type": "long"}
> ]
> }},
> {"name": "content", "type": "bytes"},
> {"name": "contentType", "type": "string"},
> {"name": "prevSignature", "type": "bytes"},
> {"name": "signature", "type": "bytes"},
> {"name": "title", "type": "string"},
> {"name": "text", "type": "string"},
> {"name": "parseStatus", "type": {
> "name": "ParseStatus",
> "type": "record",
> "namespace": "org.apache.nutch.storage",
> "fields": [
> {"name": "majorCode", "type": "int"},
> {"name": "minorCode", "type": "int"},
> {"name": "args", "type": {"type": "array", "items": "string"}}
> ]
> }},
> {"name": "score", "type": "float"},
> {"name": "reprUrl", "type": "string"},
> {"name": "headers", "type": {"type": "map", "values": "string"}},
> {"name": "outlinks", "type": {"type": "map", "values": "string"}},
> {"name": "inlinks", "type": {"type": "map", "values": "string"}},
> {"name": "markers", "type": {"type": "map", "values": "string"}},
> {"name": "metadata", "type": {"type": "map", "values": "bytes"}},
> {"name": "features", "type": {"type": "map", "values": "bytes"}},
> {"name": "pageType", "type": "int"},
> {"name": "newsTime", "type": "long"},
> {"name": "level", "type": "int"},
> {"name": "lastFetchInterval", "type":"int"},
> {"name": "findTime", "type":"long"}
> ]
> }
>
>
>
>
>
>
>
>
>
