still pending deletes present for shards retrying – How to solve related issues

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still pending deletes present for shards retrying – How to solve related issues

Opster Team

Jan-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you run Elasticsearch Error Check-Up which can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” still pending deletes present for shards retrying ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: indices and shards.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up to analyze Elasticsearch configuration and help resolve this error.

Log Context

Log “{} still pending deletes present for shards {} – retrying” classname is IndicesService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                                 iterator.remove();
                            }
                        }
                    }
                    if (remove.isEmpty() == false) {
                        logger.warn("{} still pending deletes present for shards {} - retrying"; index; remove.toString());
                        Thread.sleep(sleepTime);
                        sleepTime = Math.min(maxSleepTimeMs; sleepTime * 2); // increase the sleep time gradually
                        logger.debug("{} schedule pending delete retry after {} ms"; index; sleepTime);
                    }
                } while ((System.nanoTime() - startTimeNS) 

 

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