Thanks Robert for the clarification. So to solve the issue, can I handle this IllegalStateException and retry the read or write operations for a finite number of times, which makes the best effort of previous write-capable transactions to get completed. Or is there a more elegant way of solving this issue ?
Regards -Satish -----Original Message----- From: Robert Varga [mailto:n...@hq.sk] Sent: Monday, March 06, 2017 5:23 PM To: Satish Dutt <sd...@advaoptical.com>; controller-us...@lists.opendaylight.org; controller-dev@lists.opendaylight.org Subject: Re: [controller-dev] Getting exception when using Transaction Chain On 03/06/2017 12:39 PM, Satish Dutt wrote: > When multiple requests are sent concurrently, IllegalStateException is > thrown. Is there any way to solve this issue, apart from synchronizing > the method which does the above operations ? This is actually part of the API contract: https://github.com/opendaylight/controller/blob/a81d98f692b80c45bce3fe6a87e731abfb012a9f/opendaylight/md-sal/sal-common-api/src/main/java/org/opendaylight/controller/md/sal/common/api/data/TransactionChain.java#L59 The reason is very simple: if there is a write-capable transaction open and it has seen some modifications, does the second transaction observe those modifications as applied or as unapplied? Bye, Robert _______________________________________________ controller-dev mailing list controller-dev@lists.opendaylight.org https://lists.opendaylight.org/mailman/listinfo/controller-dev
