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https://issues.apache.org/jira/browse/SOLR-10375?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16122368#comment-16122368
]
Michael Braun commented on SOLR-10375:
--------------------------------------
Also happens on an insert - the size * 3 overflows to be a negative value,
which will pass the MAX_UTF8_SIZE_FOR_ARRAY_GROW_STRATEGY.. :
{code}
Caused by: java.lang.ArrayIndexOutOfBoundsException: 51
at org.apache.solr.common.util.ByteUtils.UTF16toUTF8(ByteUtils.java:94)
at
org.apache.solr.common.util.JavaBinCodec.writeStr(JavaBinCodec.java:805)
at
org.apache.solr.common.util.JavaBinCodec.writePrimitive(JavaBinCodec.java:897)
at
org.apache.solr.common.util.JavaBinCodec.writeKnownType(JavaBinCodec.java:323)
at
org.apache.solr.common.util.JavaBinCodec.writeVal(JavaBinCodec.java:223)
at
org.apache.solr.common.util.JavaBinCodec.writeSolrInputDocument(JavaBinCodec.java:589)
at
org.apache.solr.common.util.JavaBinCodec.writeKnownType(JavaBinCodec.java:350)
at
org.apache.solr.common.util.JavaBinCodec.writeVal(JavaBinCodec.java:223)
at
org.apache.solr.common.util.JavaBinCodec.writeMapEntry(JavaBinCodec.java:729)
at
org.apache.solr.common.util.JavaBinCodec.writeKnownType(JavaBinCodec.java:378)
at
org.apache.solr.common.util.JavaBinCodec.writeVal(JavaBinCodec.java:223)
at
org.apache.solr.common.util.JavaBinCodec.writeIterator(JavaBinCodec.java:670)
at
org.apache.solr.common.util.JavaBinCodec.writeKnownType(JavaBinCodec.java:362)
at
org.apache.solr.common.util.JavaBinCodec.writeVal(JavaBinCodec.java:223)
at
org.apache.solr.common.util.JavaBinCodec.writeNamedList(JavaBinCodec.java:218)
at
org.apache.solr.common.util.JavaBinCodec.writeKnownType(JavaBinCodec.java:325)
at
org.apache.solr.common.util.JavaBinCodec.writeVal(JavaBinCodec.java:223)
at
org.apache.solr.common.util.JavaBinCodec.marshal(JavaBinCodec.java:146)
at
org.apache.solr.client.solrj.request.JavaBinUpdateRequestCodec.marshal(JavaBinUpdateRequestCodec.java:83)
at
org.apache.solr.client.solrj.impl.BinaryRequestWriter.getContentStream(BinaryRequestWriter.java:67)
at
org.apache.solr.client.solrj.request.RequestWriter$LazyContentStream.getDelegate(RequestWriter.java:94)
at
org.apache.solr.client.solrj.request.RequestWriter$LazyContentStream.getName(RequestWriter.java:104)
at
org.apache.solr.client.solrj.impl.HttpSolrClient.createMethod(HttpSolrClient.java:389)
{code}
> Stored text retrieved via StoredFieldVisitor on doc in the document cache
> over-estimates needed byte[]
> ------------------------------------------------------------------------------------------------------
>
> Key: SOLR-10375
> URL: https://issues.apache.org/jira/browse/SOLR-10375
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Environment: Java 1.8.121, Linux x64
> Reporter: Michael Braun
> Priority: Minor
>
> Using SolrIndexSearcher.doc(int n, StoredFieldVisitor visitor) (as can
> happen with the UnifiedHighlighter in particular)
> If the document cache has the document, will call visitFromCached, will get
> an out of memory error because of line 752 of SolrIndexSearcher -
> visitor.stringField(info, f.stringValue().getBytes(StandardCharsets.UTF_8));
> {code}
> at java.lang.OutOfMemoryError.<init>()V (OutOfMemoryError.java:48)
> at java.lang.StringCoding.encode(Ljava/nio/charset/Charset;[CII)[B
> (StringCoding.java:350)
> at java.lang.String.getBytes(Ljava/nio/charset/Charset;)[B (String.java:941)
> at
> org.apache.solr.search.SolrIndexSearcher.visitFromCached(Lorg/apache/lucene/document/Document;Lorg/apache/lucene/index/StoredFieldVisitor;)V
> (SolrIndexSearcher.java:685)
> at
> org.apache.solr.search.SolrIndexSearcher.doc(ILorg/apache/lucene/index/StoredFieldVisitor;)V
> (SolrIndexSearcher.java:652)
> {code}
> This is due to the current String.getBytes(Charset) implementation, which
> allocates the underlying byte array as a function of
> charArrayLength*maxBytesPerCharacter, which for UTF-8 is 3. 3 * 716MB is
> over Integer.MAX, and the JVM cannot allocate over this, so an out of memory
> exception is thrown because the allocation of this much memory for a single
> array is currently impossible.
> The problem is not present when the document cache is disabled.
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