xiejiajun commented on issue #3695: [ZEPPELIN-4691]restart interpreter blocked after interpreter process exited unexpectedly URL: https://github.com/apache/zeppelin/pull/3695#issuecomment-602093882 > @xiejiajun Sorry, I forget to paste the issue [ZEPPELIN-4600](https://issues.apache.org/jira/browse/ZEPPELIN-4600) > BTW, is it hard to reproduce this issue ? You mentioned that it is on occasional, I am wondering how often it could be reproduced ? What kind of mode do you use ? yarn-client or yarn-cluster ? I am using yarn-client mode. Through the analysis of the code call chain, we can learn that after we using kill -9 to manually terminate the local Spark Driver process, if we restart spark interpreter when the number of active Thrift clients in the ClientPool connected to the corresponding interpreter is greater than or equal to the maxTotal default value (8) , it will wait indefinitely for available thrift clients.
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