Job getId Unexpected exception writing to process – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 8.3-8.9

Briefly, this error occurs when Elasticsearch encounters an issue while trying to write data to a process during a job execution, possibly due to a network issue, disk space issue, or a problem with the underlying system. To resolve this, you can check the system’s disk space and network connectivity. If these are fine, try restarting Elasticsearch. If the problem persists, check the Elasticsearch logs for more detailed error information. It might also be necessary to check the health of the underlying system or hardware.

This guide will help you check for common problems that cause the log ” [” + job.getId() + “] Unexpected exception writing to process ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

Log Context

Log “[” + job.getId() + “] Unexpected exception writing to process” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                            "[{}] Could not submit operation to process as it has been killed";
                } else {
                    logger.error(() -> "[" + job.getId() + "] Unexpected exception writing to process"; e);
                    handler.accept(null; e);