timeout error causing application to crash.

We have a customer on membase 1.7.2r and spy 2.7.3 that saw a application issue during rebalance.

Their devs said that the app received timeout errors and the exception below:

Because of the timeout issues with rebalance, they ended up deleting the bucket and creating and repopulating them.

They'd like to know on the spy side, the cause for the timeout and if this is fixed in the new java client?

thanks

-Alex.

java.lang.RuntimeException: Exception waiting for value
at net.spy.memcached.MemcachedClient.gets(MemcachedClient.java:1103)
at net.spy.memcached.MemcachedClient.gets(MemcachedClient.java:1161)
at com.playtika.common.dal.vs.MembaseDAO.getUserMessages(MembaseDAO.java:343)
at com.playtika.cache.CacheDao.getUserMessage(CacheDao.java:978)
at com.playtika.servlets.Common.getUserMessages(Common.java:276)
at com.playtika.servlets.Common.doPost(Common.java:142)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.playtika.filters.RequestsLoggerFilter.doFilter(RequestsLoggerFilter.java:78)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.playtika.filters.LoggerFilter.doFilter(LoggerFilter.java:75)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.playtika.filters.SessionFilter.doFilter(SessionFilter.java:89)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.playtika.stats.StatisticFilter.doFilter(StatisticFilter.java:46)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.playtika.filters.RequestAccountMappingFilter.doFilter(RequestAccountMappingFilter.java:50)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.playtika.filters.CharsetEncodingFilter.doFilter(CharsetEncodingFilter.java:13)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.util.concurrent.ExecutionException: OperationException: SERVER: Internal error
at net.spy.memcached.internal.OperationFuture.get(OperationFuture.java:81)
at net.spy.memcached.MemcachedClient.gets(MemcachedClient.java:1098)
... 37 more
Caused by: OperationException: SERVER: Internal error
at net.spy.memcached.protocol.BaseOperationImpl.handleError(BaseOperationImpl.java:135)
at net.spy.memcached.protocol.binary.OperationImpl.getStatusForErrorCode(OperationImpl.java:184)
at net.spy.memcached.protocol.binary.OperationImpl.finishedPayload(OperationImpl.java:150)
at net.spy.memcached.protocol.binary.OperationImpl.readFromBuffer(OperationImpl.java:139)
at net.spy.memcached.protocol.binary.GetsOperationImpl.readFromBuffer(GetsOperationImpl.java:5)
at net.spy.memcached.MemcachedConnection.handleReads(MemcachedConnection.java:504)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:418)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:275)
at net.spy.memcached.MemcachedClient.run(MemcachedClient.java:2030)