Support Article
Exception on sending or receiving a chat text
SA-58020
Summary
Exception occurs when a customer service representative sends a chat text to the user or the user sends a chat text.
Error Messages
Unable to obtain session. Cassandra hasn't been started or is unavailable.
Type .common.util.concurrent.UncheckedExecutionException
Message com.pega.dsm.dnode.api.dds.service.SessionNotAvailableException: Unable to obtain session. Cassandra hasn't been started or is unavailable
Stack
at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2207)
at com.google.common.cache.LocalCache.get(LocalCache.java:3953)
at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3957)
at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4875)
at com.pega.decision.adm.client.impl.cache.ModelCache.getModel(ModelCache.java:73)
at com.pega.decision.adm.client.impl.ModelInitializer.getOrCreateModel(ModelInitializer.java:70)
at com.pega.decision.adm.client.impl.ClientImpl.scoreAndCreateModelIfNew(ClientImpl.java:1161)
at com.pegarules.generated.adaptivemodel.ra_action_predictwin_21d542423037d4588c28058ec7a21a1a.perform(ra_action_predictwin_21d542423037d4588c28058ec7a21a1a.java:263)
at com.pega.decision.dsm.strategy.CachedExternalRuleExecutor.doAction(CachedExternalRuleExecutor.java:136)
at com.pegarules.generated.strategy.ra_action_evaluateopportunity_caab1d2de62668532e8298b8aeb1f8ec$12.executeOverallWin(ra_action_evaluateopportunity_caab1d2de62668532e8298b8aeb1f8ec.java:1238)
at com.pegarules.generated.strategy.ra_action_evaluateopportunity_caab1d2de62668532e8298b8aeb1f8ec$12.execute(ra_action_evaluateopportunity_caab1d2de62668532e8298b8aeb1f8ec.java:1180)
at com.pega.decision.strategy.impl.exec.CustomComponentExecutor.inlineExecute(CustomComponentExecutor.java:50)
at com.pega.decision.strategy.impl.exec.SequenceComponentExecutor.execute(SequenceComponentExecutor.java:85)
Steps to Reproduce
Log in to PegaChat and attempt to chat with a user.Root Cause
A defect in Pegasystems’ code or rules.
Resolution
Apply HFix-44177.
Published July 23, 2018 - Updated December 2, 2021
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