ElasticSearch反复崩溃

Question

我在debian GNU / Linux 8服务器上运行ElasticSearch 1.6.2

弹性搜索反复下降，显然无缘无故

我在ElasticSearch日志中没有任何错误消息，但我有一些警告：

崩溃之前

：

\var\log\kern.log

并在崩溃和重启后：

protected void lnkbtn_Submit_Click(object sender, EventArgs e)
{
    try
    {
        if (MultipleFileUpload.HasFiles)
        {
            int MaxGalleryId, ReturnValue;
            ReturnValue = obj.fnCreateNewPhotoGallery(txtGalleryName.Text, txtGalleryDescrption.Text, DateTime.Now, out MaxGalleryId);
            if (ReturnValue != 0)
            {
                string GalleryPath = System.Configuration.ConfigurationManager.AppSettings["GalleryPath"] + MaxGalleryId;
                Directory.CreateDirectory(Server.MapPath(GalleryPath));

                string ThumbnailPath = System.Configuration.ConfigurationManager.AppSettings["ThumbnailPath"] + MaxGalleryId;
                Directory.CreateDirectory(Server.MapPath(ThumbnailPath));

                StringBuilder UploadedFileNames = new StringBuilder();

                foreach (HttpPostedFile uploadedFile in MultipleFileUpload.PostedFiles)
                {
                    //Upload file
                    string FileName = HttpUtility.HtmlEncode(Path.GetFileName(uploadedFile.FileName));
                    string SaveAsImage = System.IO.Path.Combine(Server.MapPath(GalleryPath + "/"), FileName);
                    uploadedFile.SaveAs(SaveAsImage);

                    //Create thumbnail for uploaded file and save thumbnail on disk
                    Bitmap Thumbnail = CreateThumbnail(SaveAsImage, 200, 200);
                    string SaveAsThumbnail = System.IO.Path.Combine(Server.MapPath(ThumbnailPath + "/"), FileName);
                    Thumbnail.Save(SaveAsThumbnail);
                }
                HTMLHelper.jsAlertAndRedirect(this, "Gallery created successfully. ", "Album.aspx?GalleryId=" + MaxGalleryId);
            }
        }
    }

    catch
    {
        HTMLHelper.jsAlertAndRedirect(this, "Gallery is not created. Some exception occured ", "CreateAlbum.aspx");
    }
}

我读到ElasticSearch可能被OOM-Killer杀死，但没有public Bitmap CreateThumbnail(string ImagePath, int ThumbnailWidth, int ThumbnailHeight) { System.Drawing.Bitmap Thumbnail = null; try { Bitmap ImageBMP = new Bitmap(ImagePath); ImageFormat loFormat = ImageBMP.RawFormat; decimal lengthRatio; int ThumbnailNewWidth = 0; int ThumbnailNewHeight = 0; decimal ThumbnailRatioWidth; decimal ThumbnailRatioHeight; // If the uploaded image is smaller than a thumbnail size the just return it if (ImageBMP.Width <= ThumbnailWidth && ImageBMP.Height <= ThumbnailHeight) return ImageBMP; // Compute best ratio to scale entire image based on larger dimension. if (ImageBMP.Width > ImageBMP.Height) { ThumbnailRatioWidth = (decimal)ThumbnailWidth / ImageBMP.Width; ThumbnailRatioHeight = (decimal)ThumbnailHeight / ImageBMP.Height; lengthRatio = Math.Min(ThumbnailRatioWidth, ThumbnailRatioHeight); ThumbnailNewWidth = ThumbnailWidth; decimal lengthTemp = ImageBMP.Height * lengthRatio; ThumbnailNewHeight = (int)lengthTemp; } else { ThumbnailRatioWidth = (decimal)ThumbnailWidth / ImageBMP.Width; ThumbnailRatioHeight = (decimal)ThumbnailHeight / ImageBMP.Height; lengthRatio = Math.Min(ThumbnailRatioWidth, ThumbnailRatioHeight); ThumbnailNewHeight = ThumbnailHeight; decimal lengthTemp = ImageBMP.Width * lengthRatio; ThumbnailNewWidth = (int)lengthTemp; } Thumbnail = new Bitmap(ThumbnailNewWidth, ThumbnailNewHeight); Graphics g = Graphics.FromImage(Thumbnail); g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic; g.FillRectangle(Brushes.White, 0, 0, ThumbnailNewWidth, ThumbnailNewHeight); g.DrawImage(ImageBMP, 0, 0, ThumbnailNewWidth, ThumbnailNewHeight); ImageBMP.Dispose(); } catch { return null; } return Thumbnail; } 文件来检查

如何调查并找出ElasticSearch崩溃的原因？