if you are creating new instance for each query.. you should be fine.. which Pig version are you using ? can you paste the snippet of java code where you are creating new pig server instance and then using it for a new query ?
Ashutosh On Mon, May 17, 2010 at 14:17, Yonggang Qiao <[email protected]> wrote: > sorry, actually yes. no, we use new instance for each script. > > On Mon, May 17, 2010 at 2:13 PM, Yonggang Qiao <[email protected]> > wrote: >> yes. yes. >> >> On Mon, May 17, 2010 at 2:03 PM, Ashutosh Chauhan >> <[email protected]> wrote: >>> Are you using PigServer java api to run your Pig queries ? If so, are >>> you trying to run multiple queries in different threads against same >>> Pig server instance? >>> >>> Ashutosh >>> >>> On Mon, May 17, 2010 at 13:57, Yonggang Qiao <[email protected]> >>> wrote: >>>> Hi, >>>> >>>> anyone has seen this error before? normally our script runs fine, but >>>> sometime recently it began to throw this exception. also usually it >>>> will go away if I rerun it. >>>> >>>> Caused by: java.lang.RuntimeException: Unable to find clone for op >>>> Project 4-16 Projections: [9] Overloaded: false >>>> at >>>> org.apache.pig.impl.logicalLayer.LogicalPlan.clone(LogicalPlan.java:132) >>>> at >>>> org.apache.pig.impl.logicalLayer.LogicalPlanCloneHelper.<init>(LogicalPlanCloneHelper.java:66) >>>> at >>>> org.apache.pig.impl.logicalLayer.LogicalPlanCloner.getClonedPlan(LogicalPlanCloner.java:45) >>>> at >>>> org.apache.pig.impl.logicalLayer.parser.QueryParser.ForEachClause(QueryParser.java:3009) >>>> at >>>> org.apache.pig.impl.logicalLayer.parser.QueryParser.BaseExpr(QueryParser.java:1314) >>>> at >>>> org.apache.pig.impl.logicalLayer.parser.QueryParser.Expr(QueryParser.java:893) >>>> at >>>> org.apache.pig.impl.logicalLayer.parser.QueryParser.Parse(QueryParser.java:682) >>>> at >>>> org.apache.pig.impl.logicalLayer.LogicalPlanBuilder.parse(LogicalPlanBuilder.java:63) >>>> at org.apache.pig.PigServer$Graph.parseQuery(PigServer.java:1017) >>>> at org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:967) >>>> at org.apache.pig.PigServer.registerQuery(PigServer.java:383) >>>> at org.apache.pig.PigServer.registerQuery(PigServer.java:399) >>>> at ... >>>> >>>> Thanks, >>>> Yonggang >>>> >>> >> >
