Details
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Bug
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Status: Resolved
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Medium
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Resolution: Won't Do
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None
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None
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None
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None
Description
This may be user error, or maybe improperly written yang, but when I try to run the model validator against some juniper yang models from the yang github repo the tool consumes all given memory, spikes the CPU and eventually crashes with an OOM.
Command to recreate running from root of yang repo:
java -Xmx12288m -jar ../yangtools/yang/yang-model-validator/target/yang-model-validator-5.0.0-SNAPSHOT-jar-with-dependencies.jar -p ./vendor/juniper/18.2/18.2R1/ -r -d vendor/juniper/18.2/18.2R1/junos/conf/junos-conf-root@2018-01-01.yang
Not very helpful, but here is one OOM crash trace:
Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
at org.antlr.v4.runtime.misc.DoubleKeyMap.<init>(DoubleKeyMap.java:19)
at org.antlr.v4.runtime.atn.ParserATNSimulator.computeReachSet(ParserATNSimulator.java:776)
at org.antlr.v4.runtime.atn.ParserATNSimulator.execATNWithFullContext(ParserATNSimulator.java:664)
at org.antlr.v4.runtime.atn.ParserATNSimulator.execATN(ParserATNSimulator.java:505)
at org.antlr.v4.runtime.atn.ParserATNSimulator.adaptivePredict(ParserATNSimulator.java:393)
at org.opendaylight.yangtools.yang.parser.antlr.YangStatementParser.statement(YangStatementParser.java:276)
at org.opendaylight.yangtools.yang.parser.antlr.YangStatementParser.statement(YangStatementParser.java:229)
at org.opendaylight.yangtools.yang.parser.antlr.YangStatementParser.statement(YangStatementParser.java:229)
at org.opendaylight.yangtools.yang.parser.antlr.YangStatementParser.statement(YangStatementParser.java:229)
at org.opendaylight.yangtools.yang.parser.antlr.YangStatementParser.statement(YangStatementParser.java:229)
at org.opendaylight.yangtools.yang.parser.antlr.YangStatementParser.statement(YangStatementParser.java:229)
at org.opendaylight.yangtools.yang.parser.antlr.YangStatementParser.statement(YangStatementParser.java:229)
at org.opendaylight.yangtools.yang.parser.antlr.YangStatementParser.statement(YangStatementParser.java:229)
at org.opendaylight.yangtools.yang.parser.rfc7950.repo.YangStatementStreamSource.parseYangSource(YangStatementStreamSource.java:171)
at org.opendaylight.yangtools.yang.parser.rfc7950.repo.YangStatementStreamSource.create(YangStatementStreamSource.java:98)
at org.opendaylight.yangtools.yang.parser.impl.YangParserImpl.sourceToStatementStream(YangParserImpl.java:119)
at org.opendaylight.yangtools.yang.parser.impl.YangParserImpl.addLibSource(YangParserImpl.java:73)
at org.opendaylight.yangtools.yang.validator.SystemTestUtils.parseYangSources(SystemTestUtils.java:103)
at org.opendaylight.yangtools.yang.validator.SystemTestUtils.parseYangSources(SystemTestUtils.java:87)
at org.opendaylight.yangtools.yang.validator.Main.runSystemTest(Main.java:177)
at org.opendaylight.yangtools.yang.validator.Main.main(Main.java:136)
Notice the above command is using 12G heap size. Obviously, it's much faster to hit
with a smaller heap. I will link a heap dump from a 1G recreation
Attachments
Issue Links
- split to
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YANGTOOLS-1112 Separate out ModelProcessingPhase.SOURCE_PRE_LINKAGE phase handling
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- Confirmed
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